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Cummins Inc patents


Recent patent applications related to Cummins Inc. Cummins Inc is listed as an Agent/Assignee. Note: Cummins Inc may have other listings under different names/spellings. We're not affiliated with Cummins Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "C" | Cummins Inc-related inventors


Wireless ecu configuration updating

Systems, apparatuses, and methods disclosed provide for wirelessly updating engine control unit (ecu) configuration. The method includes determining parameters to be changed on an engine control unit of an equipment, generating a write package including the parameters to be changed, and transmitting the write package to the equipment over the air through a cloud connected application system.. ... Cummins Inc

Energy storage system

Systems and methods for controlling power flow to and from an energy storage system are provided. One energy storage system includes an energy storage device and a bidirectional inverter configured to control a flow of power into or out of the energy storage device. ... Cummins Inc

Cooperative cam phaser and air throttle control

Methods and apparatus relate to air handling for an internal combustion engine system, particularly utilizing premixed air and fuel. The engine system includes an intake air throttle (iat) having a position set in response to the engine speed and a variable valve timing module having an intake valve timing set in response to the engine load. ... Cummins Inc

Exhaust energy reutilization device

A system for reutilizing exhaust energy including a decomposition reactor, a turbine including a magnet, the turbine in fluid communication with the decomposition reactor, a coil disposed proximate to the decomposition reactor, the coil electrically coupled to the magnet, and a controller communicatively coupled to the turbine, the controller structured to determine exhaust energy output of a turbine associated with an exhaust system, and cause generation of a magnetic field based on the exhaust energy output, wherein the magnetic field causes a portion of the decomposition reactor to heat.. . ... Cummins Inc

Filtering assembly comprising a filter cartridge

The present invention relates to a filtering assembly for filtering at least one fluid flowing in particular in a hydraulic motor or device, comprising: —a filter body which comprises a vessel and a cover which are configured to engage with one another in order to enable the filter body to close, —a tube, in particular a central tube, inside the filter body extending along a longitudinal axis (x), —a removable filter cartridge which is housed in the filter body and includes an upper end plate, a lower end plate and a filter medium which extends between the upper end plate and the lower end plate, the filter cartridge having a tubular opening for surrounding the tube, characterized in that the cover has a circular rib which is formed such as to project into an inner space of the filter body, and in that the upper end plate has a circular edge which is designed to sealingly engage radially and inwardly with said circular rib of the cover.. . ... Cummins Inc

Permanent magnet operating mechanism for use in automatic transfer switch

An automatic transfer switch system includes a contact subsystem having a plurality of movable contact members, including at least one first movable contact member and at least one second movable contact member at first and second locations, respectively, and at least one fixed contact member. The switch system further includes a permanent magnet operating mechanism that controls opening and closing of the movable contact members relative to the fixed contact member, generates a holding force to maintain a state of the at least one first movable contact member at the first location and a state of the at least one second movable contact member at the second location, and connects to the subsystem via a linkage, and a solenoid permitting movement of the at least one first movable contact member and the at least one second movable contact member at the first and second locations, respectively.. ... Cummins Inc

Automatic transfer switch and drive subsystem

A transmission subsystem has an automatic transfer switch (100) which includes at least a pair of movable contact members (28, 30). The pair of movable contact members includes a first movable contact member (28) at a first location and a second movable contact member (30) at a second location. ... Cummins Inc

Multi-turbocharger connection with heat exchanger

Systems, methods and apparatus for connection of a multi-stage turbocharger to a heat exchanger are disclosed. The multi-stage turbocharger includes at least first and second compressors with respective first and second outlets. ... Cummins Inc

Rotating coalescer

Assembly to be used to filter a fluid, containing a housing (29) which comprises a housing base (50) and a housing upper part (30) connected removably to the housing base (50). An axial shaft (34, 35) extends at least partially through the filter element (32, 33) when the filter element (32, 33) is contained inside the housing (29). ... Cummins Inc

Filter cartridge endplate with integrated flow structure

A filter cartridge endplate (12) is described herein that has an integrated flow structure. For example, the integrated flow structure has concentric flow portions disposed at a center of the endplate (12), where a separator (10) is built into the endplate (12) that separates fluid flow. ... Cummins Inc

Hermetically sealed electromagnetic stator

A stator assembly comprising: a stator having an inner diameter; a plurality of coils wrapped around the stator; and a seal plate positioned on the lower surface of the stator and spanning the inner diameter of the stator, the seal plate having at least one welded edge to form a hermetic seal along the stator.. . ... Cummins Inc

Transfer switch

A transfer switch transfers electric power provided to an electrical load from a first power source to a second power source. The transfer switch includes a coil arrangement that controls movement of a member to open or close a contactor of the first or second power source. ... Cummins Inc

High pressure common rail fuel pump outlet check valve spring retainer method

The present disclosure generally relates to a pumping element of a fuel pump for an internal combustion engine wherein the pumping element comprises a first flow chamber; a second flow chamber in fluid connection with the first flow chamber, the second flow chamber including a shoulder; a check valve including a first insert and a second insert, the first insert being movable between a first position wherein the first insert forms a seal that inhibits fluid flow between the first and second flow chambers and a second position wherein the first insert permits fluid flow between the first and second flow chambers, the second insert being inserted into the second flow chamber to an extent limited by the shoulder; and a spring having a first end engaging the first insert and a second end engaging the second insert; wherein the first insert moves from the first position to the second position against a biasing force of the spring in response to pressurized fluid in the first flow chamber.. . ... Cummins Inc

Pulse interrupt control mode for configurable output driver asic

A method includes receiving a plurality of injection pulses; generating a plurality of drive signals in response to the plurality of injection pulses; generating an interrupt signal in response to the plurality injection pulses, the interrupt signal being one of a high interrupt signal and a low interrupt signal; and transitioning between a plurality of operating states in response to the interrupt signal.. . ... Cummins Inc

06/28/18 / #20180179940

System and method to detect and respond to iced sensors in exhaust after-treatment system

A combustion system (100), a control module (104) for a combustion system (100) and a method of operating the combustion system (100) are disclosed. The method may be implemented by the control module (104) in the combustion system (100). ... Cummins Inc

06/28/18 / #20180179938

Injector including swirl device

An injector includes a needle and a body. The needle is configured to receive fluid from a fluid supply and operable between a first position, in which the fluid is not provided to a target, and a second position, in which the fluid is provided to the target. ... Cummins Inc

06/28/18 / #20180179644

Pistons with thermal barrier coatings

A method of making a piston for an opposed-piston engine comprises providing a piston. The piston comprises a substantially cylindrical portion including a sidewall and a piston crown located at an end of the piston. ... Cummins Inc

06/21/18 / #20180171949

Common rail multi-cylinder fuel pump with independent pumping plunger extension

A fuel pump for an internal combustion engine is provided comprising a barrel including a central bore having a longitudinal axis, a plunger disposed partially in the central bore and movable along the longitudinal axis, a spring retainer, a first coil spring having a proximal end in contact with a first section of the barrel and a distal end in contact with the spring retainer to urge the spring retainer into engagement with a tappet assembly, an extender element coupled to the plunger, and a second coil spring having a proximal end in contact with a second section of the barrel and a distal end in contact with the extender element to urge the plunger toward the spring retainer, wherein the extender element includes a counter-bore to couple the extender element to the plunger.. . ... Cummins Inc

06/21/18 / #20180171851

Air curtain for urea mixing chamber

An exemplary embodiment includes a blending chamber having a urea inlet, a blending chamber gas inlet, and a blending chamber outlet. A urea source provides a pressurized urea solution to the urea inlet at a urea injection pressure, and a pressurized gas source transmits pressurized gas to the blending chamber gas inlet via a passageway. ... Cummins Inc

06/21/18 / #20180171846

System and method for the monitoring and controlling of emissions for multiple engines

A method includes determining, by a controller, a total emissions amount from a plurality of engines; comparing, by the controller, the total emissions amount to a predetermined threshold, wherein the predetermined threshold includes an alert value, an adjustment value, and a deactivation value, the deactivation value being greater than the adjustment value, which is greater than the alert value; deactivating, by the controller, at least one engine in response to the total emissions amount being at or greater than the deactivation value; adjusting, by the controller, operation of at least one engine in the plurality of engines in response to the total emissions amount being at or greater than the adjustment value but less than the deactivation value; and providing, by the controller, an alert in response to the total emissions amount being at or greater than the alert value but less than the adjustment value.. . ... Cummins Inc

06/21/18 / #20180169556

Systems and methods for utilizing a low-friction rotating coalescer contact seal

Rotating coalescer crankcase ventilation (cv) systems are described. The described cv systems utilize a contact seal to seal a gap between a static side of a housing and a rotating coalescer inlet. ... Cummins Inc

06/14/18 / #20180164267

Nox sensor diagnostic system and method

A system includes: a nox sensor; and a controller configured to: increase an amount of o2 in a chamber of the nox sensor; interpret one or more values of a parameter indicative an amount of o2 and/or nox measured by the nox sensor; determine if the one or more values of the parameter exceed a threshold value; and indicate a failure of the nox sensor responsive to the one or more values of the parameter do not exceed the threshold value.. . ... Cummins Inc

06/14/18 / #20180163862

Control system for hydraulically powered ac generator

Systems and methods for use in controlling a hydraulically powered ac generator are provided. One control system includes a valve system. ... Cummins Inc

06/14/18 / #20180163668

Natural gas fuel system for an internal combustion engine

A natural gas fueling system supplies methane gas to an engine and includes a filter assembly. The filter assembly includes a gas inlet configured to receive inlet gas and a methane permeable filter configured to separate methane gas and first contaminant gases from the inlet gas. ... Cummins Inc

06/14/18 / #20180163594

Variable spray angle injector arrangement

An injector, comprising, an injector body comprising, an inner wall that defines an injector cavity for fluid, at least one inlet channel into the injector cavity, and at least one outlet channel from the injector cavity, a plunger that defines at least one passageway between the injector cavity and the at least one outlet channel, the plunger being movable longitudinally in the injector cavity between at least: a first open arrangement in which the at least one passageway is positioned to direct fluid into the at least one outlet channel at a first position, and a second open arrangement in which the at least one passageway is positioned to direct fluid into the at least one outlet channel at a second position different from the first position.. . ... Cummins Inc

06/14/18 / #20180162195

Hvac heating of vehicles and during road emergencies

Systems and methods for managing an environment comfort system includes a control system. The control system is communicatively coupled to a location positioning system. ... Cummins Inc

06/07/18 / #20180158594

High-current half-turn windings

. . An electric device comprises a core having a center section and two outer sections, a high current winding, and a low current winding. The high current winding includes a plurality of half-turn coils connected in parallel between a first high current terminal and a second high current terminal. ... Cummins Inc

06/07/18 / #20180156175

High pressure diesel fuel pump pumping element

The present disclosure generally relates to a pumping element of a fuel pump for an internal combustion engine wherein the pumping element comprises a pumping chamber and a check valve assembly having a first insert including a passage in flow communication with a fuel outlet, and a second insert being disposed adjacent the pumping chamber, the second insert including a bore in flow communication with a fuel inlet, a plurality of through holes in flow communication with the pumping chamber, and an inlet check valve plunger disposed in the bore for movement between an opened position wherein inlet fuel from the fuel inlet flows past the inlet check valve plunger through the plurality of through holes to the pumping chamber and a closed position wherein outlet fuel from the pumping chamber flows through the plurality of through holes past the inlet check valve plunger to the passage of the first insert.. . ... Cummins Inc

06/07/18 / #20180156096

Apparatus, method, and system for diagnosing reductant deposits in an exhaust aftertreatment system

An exhaust gas treatment system for an internal combustion engine may have a reductant delivery system that delivers reductant to an exhaust stream in an exhaust aftertreatment system. A temperature sensor may be positioned in or near the flow of reductant and exhaust to measure the temperature of the reductant and exhaust. ... Cummins Inc

05/31/18 / #20180149295

Spherical flange joint

According to one embodiment, a flange joint for joining a first pipe to a second pipe includes an adapter coupled to the first pipe. The adapter includes a convex surface. ... Cummins Inc

05/31/18 / #20180149125

Nozzle combustion shield

An apparatus and method are disclosed for an injector assembly including an injector tip having a prechamber, such as a permanent, passive prechamber (pppc), and a nozzle combustion shield (ncs) to mitigate pre-ignition events, such as knocking, caused by overheating of the prechamber. The ncs has a thermal conductivity greater than the injector tip. ... Cummins Inc

05/31/18 / #20180149105

System and method for controlling exhaust gas temperature

A system and method for controlling a temperature of an exhaust gas at an inlet of a selective catalytic reduction system during at least certain low air density conditions. The system may detect an air density value upstream of an internal combustion engine of an engine system, such as, for example, at an inlet of a compressor. ... Cummins Inc

05/31/18 / #20180149099

Optimization-based controls for an air handling system using an online reference governor

System, apparatus, and methods are disclosed for controlling one or more actuators of an air handling system of an internal combustion engine. The one or more actuators are controlled in response to one or more feedforward references that are adjusted by a reference governor that predicts one or more operating parameters and imposes constraints on the one or more feedforward references to reduce the potential for violating limits on the one or more operating parameters.. ... Cummins Inc

05/31/18 / #20180149058

Automatic performance tuning for diesel exhaust fluid dosing unit

An auto-calibration controller configured to automatically tune a dosing unit of an aftertreatment system. The auto-calibration controller is configured to command the dosing unit to dose reductant at a first dosing command rate at a first input pressure value based on a dosing command value of a dosing command table. ... Cummins Inc

05/31/18 / #20180148041

Fuel and reagent degradation reduction in hybrid electrical vehicle systems

A hybrid electric vehicle system comprises an internal combustion (ic) engine and an electric engine providing power to a drive shaft of the vehicle. The ic engine receives a fuel from a fuel tank. ... Cummins Inc

05/24/18 / #20180145559

Generator set integrated gearbox

A generator set comprises an engine including a crankshaft rotatable in a first direction about a longitudinal axis of the generator set, and a generator including a generator shaft. A gearbox is positioned between the engine and the generator, all mounted on a chassis. ... Cummins Inc

05/24/18 / #20180144388

Service location recommendation tailoring

Systems, apparatuses, and methods disclosed provide for recommending service locations. The method includes analyzing fault data and location positioning data of a vehicle provided via an onboard telematics device, determining one or more service sites based on the analysis, and presenting the one or more service sites to a customer.. ... Cummins Inc

05/24/18 / #20180142638

Closed-loop adaptive controls from cycle-to-cycle for injection rate shaping

The present disclosure provides a system for adjusting a fuel injector drive signal during a fuel injection event wherein the system comprises an engine having a fuel injector, a fuel control module configured to generate control signals corresponding to a desired fueling profile of a fuel injection event, and a fueling profile interface module that outputs drive profile signals to the fuel injector in response to the control signals to cause the fuel injector to deliver an actual fueling profile, wherein the fueling profile interface module changes the drive profile signals during the fuel injection event in response to a parameter signal indicating a characteristic of the actual fueling profile.. . ... Cummins Inc

05/24/18 / #20180142590

Diagnostic methods for a high efficiency exhaust aftertreatment system

A method includes interpreting nox data indicative of an amount of nox exiting an engine and an amount of nox exiting an exhaust aftertreatment system coupled to the engine, determining a nox conversion efficiency fault is present based on the amount of nox exiting the engine and the amount of nox exiting the exhaust aftertreatment system, and determining at least one of a selective catalytic reduction (scr) catalyst of the exhaust aftertreatment system and a diesel particulate filter having a coating of a scr reaction catalyst (dpf-scr) of the exhaust aftertreatment system are responsible for the nox conversion efficiency fault based on at least one of a reductant slip amount and a nox conversion value across at least one of the scr catalyst and the dpf-scr.. . ... Cummins Inc

05/24/18 / #20180140986

Systems and methods for rotating coalescers maintaining positive recirculation through a dynamic seal

Rotating coalescer crankcase ventilation (cv) systems are described. The described cv systems utilize a pumping pressure created by the porous media of the rotating coalescer to maintain positive recirculation of filtered blowby gases through a potential leak gap between a static housing inlet and a spinning component of the rotating coalescer. ... Cummins Inc

05/24/18 / #20180140985

Methods and apparatuses for missing filter detection and prevention in rotating coalescer designs

Systems and methods for detecting a missing coalescing element in a cv system are described. In some arrangements, the described systems and methods prevent the assembly and/or re-assembly of the cv system without an appropriate coalescing element positioned within the cv system housing (e.g., during a coalescing element service operation). ... Cummins Inc

05/17/18 / #20180135745

Systems and methods for dynamic gear state and vehicle speed management

According to one aspect of the present disclosure, a control system, apparatus, and method includes dynamic optimization of at least one of a vehicle reference speed and/or transmission gear state of a vehicle by determining current and future engine power requirements from the current and forward-looking route conditions to improve performance, drivability, and/or fuel economy of the vehicle over what is achievable through conventional gear state selection via static calibration tables and conventional shifting strategies. The selection of the vehicle reference speed and gear state can be performed independently of one another in one embodiment, and complementary of one another in another embodiment.. ... Cummins Inc

05/17/18 / #20180135727

Variable counterweight

Variable counterweight apparatuses, systems and methods. The variable counterweight system includes at least one rotatable actuator, a first variable counterweight assembly, and a second variable counterweight assembly. ... Cummins Inc

05/17/18 / #20180135578

Pinless tappet in a common rail high pressure fuel pump

A system for preventing rotation of a tappet includes a tappet having an outer casing and a central axis which is configured to reciprocate linearly along the central axis. The outer casing includes a flat portion having a length along the central axis and having a width. ... Cummins Inc

05/17/18 / #20180135563

Device and method for integrated annular low pressure gaseous fuel introduction

A gaseous fuel introducer comprising a first mounting surface shaped and located to couple to a first wall of a charger; a first input, the first input being an air input; a second input, the second input being a gaseous fuel input; and a charge output. The charge output supplies a fuel-containing charge to an input of the charger. ... Cummins Inc

05/17/18 / #20180135541

Spark ignition engine control with exhaust manifold pressure sensor

Control of a spark ignited internal combustion in response to an exhaust manifold pressure measurement of an engine is disclosed. An engine out nox amount for at least one cylinder is determined at least in part in response to the exhaust manifold pressure measurement and a brake mean effective pressure of the at least one cylinder. ... Cummins Inc

05/17/18 / #20180135507

Power cylinder apparatus for reducing unburnt hydrocarbon emissions

Internal combustion engine apparatuses, systems and methods. The internal combustion engine system includes a cylinder block including a cylinder bore and a piston movably positioned in the cylinder bore. ... Cummins Inc

05/17/18 / #20180135503

Waste heat recovery with active coolant pressure control system

A waste heat recovery (whr) and coolant system with active coolant pressure control includes an engine cooling system, a whr system, and a coolant pressure control system. A coolant heat exchanger positioned along each of the engine cooling and working fluid circuits, and is structured to transfer heat from the coolant fluid to the working fluid. ... Cummins Inc

05/17/18 / #20180135498

Exhaust manifold stiffening ribs

An exhaust manifold apparatus for routing an exhaust gas produced by an internal combustion engine is described. The manifold includes a manifold log with a log wall that defines a log bore. ... Cummins Inc

05/17/18 / #20180135489

Systems and methods for enhancing catalytic efficiency of scr catalysts

A method for increasing a catalytic efficiency of a catalyst, comprising providing a catalyst. Finally, the catalyst is installed into a selective catalytic reduction system of an aftertreatment system configured to reduce constituents of an exhaust gas generated by an engine. ... Cummins Inc

05/17/18 / #20180134275

Hybrid vehicle drive cycle optimization based on route identification

Systems and methods are disclosed for controlling vehicle operations in response to a route identification reference for a vehicle based on route characteristics associated with the route identified by the route identification reference.. . ... Cummins Inc

05/17/18 / #20180134270

Vehicle coasting systems and methods

A system for a vehicle including a controller structured to communicate with a transmission and an engine of a vehicle, and additionally structured to: receive at least one of vehicle operation data, route data, or dynamic data during operation of the vehicle; determine that the vehicle is in a coasting state based on the at least one of the vehicle operation data, the route data, or the dynamic data; provide a command to at least one of the engine and the transmission to maintain the coasting state for the vehicle; and determine an end of the coasting state based on the at least one of the vehicle operation data, the route data, or the dynamic data.. . ... Cummins Inc

05/17/18 / #20180133627

No filter no run fluid filtration system

A filter system including a designated filter cartridge including a geometric projection therein and a filter cartridge housing. The filter cartridge housing including a valve that controls fluid flow out of the filter system, a filter cartridge housing, and a filter cartridge housing cover. ... Cummins Inc

05/10/18 / #20180128203

Pistons with thermal barrier coatings

A piston for an opposed-piston engine has a thermal barrier coating on at least the piston crown. The piston, at least the piston crown, is made of titanium or a titanium alloy. ... Cummins Inc

05/10/18 / #20180128202

Pistons with thermal barrier coatings

A piston for an opposed-piston engine has a thermal barrier coating on at least the piston crown. The piston, at least the piston crown, is made of titanium or a titanium alloy. ... Cummins Inc

05/10/18 / #20180126309

Standpipe with flow restriction valve, and filter cartridge

A “no filter, no run” filtration system that is designed to verify that a filter cartridge is present to safe-guard against damage to fuel injectors, associated fuel components, etc. And engine malfunctions. ... Cummins Inc

05/03/18 / #20180123352

Energy storage system

Systems and methods for controlling power flow to and from an energy storage system are provided. One energy storage system includes an energy storage device and a bidirectional inverter configured to control a flow of power into or out of the energy storage device via a plurality of phases. ... Cummins Inc

05/03/18 / #20180119625

Supercharging for improved engine braking and transient performance

A supercharger device is employed in response to engine braking events and transient events to provide further compression of the intake flow and boost engine braking power and torque response. The supercharger device can be, for example, a clutched supercharger or an electronic compressor connected in the intake system of the internal combustion engine.. ... Cummins Inc

05/03/18 / #20180119579

Hydraulic lash adjuster

An eccentric hydraulic lash adjuster, a combustion engine comprising the eccentric hydraulic lash adjuster, and a method of assembling the combustion engine, the combustion engine including a rocker lever having a nose at a distal end thereof, and a bridge bar extending between two valves, the rocker lever configured to apply pressure on the bridge bar to actuate the two valves, and an eccentric hydraulic lash adjuster positioned in the nose of the rocker lever; and a fuel injector adjacent to the nose of the rocker lever and the bridge bar, wherein the eccentric hydraulic lash adjuster includes a housing having a pivot point and a longitudinal axis offset from the pivot point and is configured to pivot about the pivot point when the rocker lever pivots about the rocket lever shaft, wherein the offset is dimensioned to prevent interference between the nose and the fuel injector.. . ... Cummins Inc

05/03/18 / #20180117512

Multiple stage rotating coalescer devices

Disclosed are multiple stage rotating coalescer devices comprising a first stage and a second stage. The first stage may include a rotating coalescing element comprising coalescing media. ... Cummins Inc

04/19/18 / #20180108199

System, method and apparatus for repurposing currency

A method of repurposing coins includes the acts of discharging processed mixed coins into a coin bin, receiving a first request for a number of or value of coins of a first denomination from an authorized person, outputting the mixed coins from the coin bin onto a coin conveyor responsive to the received first request, conveying the mixed coins output from the coin bin, using the coin conveyor, to the coin processing machine for repurposing, and discharging the coins of the first denomination from the coin processing machine to a secure coin cassette and discharging coins of a denomination other than the first denomination back to the coin bin. These acts of outputting, conveying and discharging are continued until the number of or value of coins of the first denomination have been discharged to the secure coin cassette.. ... Cummins Inc

04/19/18 / #20180108198

Coin sorting head and coin processing system using the same

According to some embodiments, a coin processing system for processing a plurality of coins, comprises a rotatable disc having a resilient pad coupled thereto for imparting motion to the plurality of coins, the resilient pad being generally circular and having an outer periphery edge. The system further comprises a stationary sorting head having a lower surface generally parallel to and spaced slightly away from the resilient pad, the lower surface forming a coin path for directing the movement of each of the coins and a coin reject region for discharging coins. ... Cummins Inc

04/19/18 / #20180106179

Systems and methods for idle fuel economy mode

An apparatus includes a stored reductant determination circuit structured to determine an amount of stored reductant in a component of an exhaust aftertreatment system, and a fuel mode economy circuit structured to control an amount of reductant added to the exhaust aftertreatment system during an engine idle mode of operation based on the amount of stored reductant.. . ... Cummins Inc

04/19/18 / #20180105179

Braking and/or electric motor control during shifting events

A system and method are disclosed for controlling shifting of a vehicle having an automated manual transmission.. . ... Cummins Inc

04/12/18 / #20180100477

Fuel injector

A fuel injector is provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of fuel injector features, resulting in improved efficiency of fuel flow through the fuel injector.. . ... Cummins Inc

04/12/18 / #20180100459

Cylinder deactivation entrance and exit control

Systems, apparatus, and methods are disclosed that include an internal combustion engine having a plurality of cylinders operable by a valve actuation mechanism. Staging of engine operating conditions is disclosed to facilitate exit from and/or entrance into a cylinder deactivation event.. ... Cummins Inc

04/12/18 / #20180100432

Combustion chamber elasticity device

An energy storage device is provided for a combustion chamber of an internal combustion engine. The energy storage device includes first and second end connectors connected to respective ones of a piston and crankshaft, and a flexible connection rod portion rotatably connected with the first and second end connectors. ... Cummins Inc

04/05/18 / #20180095742

Updating electronic controller through telematics

Systems and methods to update the calibration data of a control system includes a calibration system. The calibration system includes a first cloud connected application system structured to communicatively couple to a second cloud connected application system, determine, via at least one of the first cloud connected application system or the second cloud connected application system, a calibration update request corresponding to a control system, generate custom calibration data including preference data based on at least one of the calibration update request or the preference data, and provide the custom calibration data during at least one of an active engine state or an inactive engine state, wherein the custom calibration data is transmitted from the second memory portion to the first memory portion in response to the inactive engine state.. ... Cummins Inc

03/29/18 / #20180088177

Automatic transfer switch device health monitoring

A method includes measuring, by at least one processor, a time at which control circuitry sends an instruction to a switch structured to control transmission of electrical power. The method further includes sensing, by at least one sensor, a change in position of the switch in response to the instruction, and determining, by the at least one processor, a delay between the time at which the control circuitry sends the instruction and a time at which the change in position occurs. ... Cummins Inc

03/29/18 / #20180087434

Manifold sealing face for improved bellows installation

Exhaust manifold assemblies for use in routing exhaust gas from engines are disclosed. An example assembly includes a first manifold section. ... Cummins Inc

03/29/18 / #20180087410

Camshaft phaser/compression brake release integration with concentric camshaft

Valve trains employing a splined interface between phaser(s) and a concentric camshaft, actuator at rear of camshaft actuated by an actuation rod, adding a clearance hole to the lobe pin for clearance to the actuation rod, supplying oil to camshaft bearings via the concentric camshaft inner tube, and bolt on front camshaft bearing. The valve trains may further employ a third rocker lever that is usable for a selectable valve event (e.g. ... Cummins Inc

03/22/18 / #20180080469

Fan inlet cone for improved sealing with a genset fan and housing

Systems, methods, and apparatus for cooling a generator set are provided. One genset assembly includes a housing defining an internal volume and structured to allow air flow therethrough. ... Cummins Inc

03/22/18 / #20180080422

Variable hole size nozzle and spray angle fuel injector and mhbib

A fuel injector, comprising a nozzle body having a proximal end and a distal end, an upper row of nozzle holes being equally spaced about a first circumference of the nozzle body, and a lower row of nozzle holes located between the distal end and the upper row of nozzle holes, wherein the upper row has a first number of holes that is greater than a second number of holes in the lower row and wherein one of the first number of holes and the second number of holes is odd.. . ... Cummins Inc

03/22/18 / #20180080405

High pressure, high speed regulating switch valve

The present disclosure provides a fuel injector for an internal combustion engine with a fuel injector body having a valve chamber, a first conduit in fluid communication with the valve chamber for a first flow of fuel having a first pressure, and a second conduit in fluid communication with the valve chamber for a second flow of fuel having a second pressure. The fuel injector further includes a valve member configured to move between the first conduit and the second conduit. ... Cummins Inc

03/15/18 / #20180073463

Cast dual wall bulkhead with integral oil drain

Systems and methods are provided for a cylinder block having one or more bulkheads. The bulkheads provide a dual-wall structure that may enhance the stiffness of the cylinder block in bending and torsion. ... Cummins Inc

03/08/18 / #20180066601

Internal combustion engine cylinder liner flange with non-circular profile

Various embodiments of the invention relate to an apparatus and method for assembling a cylinder for an internal combustion engine. The cylinder includes a cylinder liner with a liner wall having an outer diameter and a flange extending radially outward from the liner wall at a superior end of the liner wall. ... Cummins Inc

03/08/18 / #20180065613

System and method for diagnosing failures in brake systems and discrete vehicle inputs

A device includes at least one of a brake position sensor operationally coupled to a brake and providing a brake position signal, or a clutch position sensor operationally coupled to a clutch and providing a clutch position signal. The device further includes a controller having a communication module structured to interpret the at least one of the brake position signal or the clutch position signal, and a collection module structured to collect vehicle dynamics information. ... Cummins Inc

03/08/18 / #20180065082

Integrated aftertreatment system

Implementations described herein relate to features for an integrated aftertreatment system. In one implementation, an integrated aftertreatment system comprises a casing that includes a mating flange having a first constant diameter and a catalyst component configured to mate to the mating flange of the casing. ... Cummins Inc

02/22/18 / #20180051624

Apparatus, system, and method for shaping a valve orifice

An apparatus, system, and method are disclosed for optimizing a valve orifice shape. According to one representative embodiment, a method includes determining a specified relationship between a valve position and an output characteristic, and determining an orifice profile. ... Cummins Inc

02/22/18 / #20180051616

System and method for monitoring particulate filter condition in an aftertreatment system

A system and method for monitoring filtering condition in an aftertreatment system comprises measuring a first pressure upstream of a first particulate filter in the aftertreatment system. A second pressure downstream of the first particulate filter and upstream of a second particulate filter in the aftertreatment system is measured. ... Cummins Inc

02/15/18 / #20180045148

Air induction systems for internal combustion engines

Air induction systems are for an internal combustion engine. The air induction systems comprise an air intake plenum that conducts intake airflow to an air cleaner for cleaning prior to combustion in the internal combustion engine. ... Cummins Inc

02/08/18 / #20180041153

Control of an engine-driven generator to address transients of an electrical power grid connected thereto

A technique for providing electric power to an electric power utility grid includes driving an electric power alternator coupled to the grid with a spark-ignited or direct injection internal combustion engine; detecting a change in electrical loading of the alternator; in response to the change, adjusting parameters of the engine and/or generator to adjust power provided by the engine. In one further forms of this technique, the adjusting of parameters for the engine includes retarding spark timing and/or interrupting the spark ignition; reducing or retarding direct injection timing or fuel amount and/or interrupting the direct injection; and/or the adjusting of parameters for the generator including increasing the field of the alternator or adding an electrical load.. ... Cummins Inc

02/08/18 / #20180041151

Adaptive control system for a variable speed electrical generator

Systems, apparatuses, and methods are disclosed herein for controlling a variable speed electrical generator. The method includes setting a threshold for a parameter of an output power of the generator set, operating an engine of the generator set at a first speed to provide the output power to a load, comparing the parameter of the output power to the threshold over a plurality of changes in a demand of the load, and determining whether to adjust a speed of the engine from the first speed to a second speed in response to the comparison of the parameter to the threshold.. ... Cummins Inc

02/08/18 / #20180038358

Systems and methods for purging an exhaust reductant delivery system

A hydraulic system comprises a fluid tank and a pump, including a pump reservoir, fluidly coupled to the tank via a supply line. A valve is in fluidic communication with the pump reservoir via a pressure line. ... Cummins Inc

02/08/18 / #20180038307

Stabilized engine casting core assembly, method for making an engine body, and engine body formed thereby

An engine block assembly and method manufacturing an engine block assembly and related components. A casted engine block assembly includes a cylinder block portion. ... Cummins Inc

02/08/18 / #20180038255

System and method for determining engine out nox based on in-cylinder contents

An apparatus includes an engine module, an in-cylinder content module, and an engine out nox module. The engine module is structured to interpret engine in-cylinder data regarding an operating condition within a cylinder of an engine, wherein the engine in-cylinder data includes an engine torque, an engine speed, a rail pressure, and a start-of-injection. ... Cummins Inc

02/08/18 / #20180038247

Cylinder block with integrated oil jacket

An engine block, an engine subassembly, and method for providing and manufacturing an engine block. The engine block includes a plurality of cylinder barrels positioned in the engine block, at least one oil jacket channel formed in the engine block, and an oil inlet port positioned in a peripheral wall of the engine block and connected to the at least one oil jacket channel. ... Cummins Inc

02/01/18 / #20180034278

Masterless distributed power transfer control

A method of power transfer control among a plurality of power sources coupled through a distribution system. The method comprises determining, at each power source of the plurality of power sources, an assignment of priorities for each of the plurality of power sources. ... Cummins Inc

02/01/18 / #20180034276

Synchronization of parallel gensets with source arbitration

A method of synchronization comprises receiving, at a first generator set, data indicating a characteristic for a component of a voltage for a source, and receiving, at a second generator set, the data indicating the characteristic for the component of the voltage for the source. The method also includes calculating, by each of the first and second generator sets, a speed offset parameter and a voltage offset parameter based on the received data. ... Cummins Inc

02/01/18 / #20180031029

Connecting rod lubrication apparatus

An apparatus includes a connecting rod having a surface that defines an opening to receive a pin for coupling the connecting rod to a piston at a first end of the connecting rod. The surface includes a groove arrangement to collect, retain and distribute lubrication fluid in the space between the pin and the inner surface. ... Cummins Inc

02/01/18 / #20180030947

Shielded spark plug extension for conventional spark plugs

A shielded ignition configuration is provided comprising a non-shield spark plug having an electrode, a spark plug extender having first end configured to mount to the spark plug such that a conductor of the extender makes electrical contact with the spark plug electrode, a second end having a cup configured for connection to a secondary lead such that the conductor makes electrical contact with the secondary lead, and a flange, and at least one retainer configured to engage the flange and cause a lower surface of the flange to engage an upper surface of a valve cover.. . ... Cummins Inc

02/01/18 / #20180030885

Lubrication system for waste heat recovery gear box

A lubrication system and method for an engine are provided. In some embodiments, the lubrication method comprises driving a lube pump with a gearbox in a power drive housing, the gearbox including an expander shaft of an expander of a waste heat recovery system; suctioning lubrication fluid, with the lube pump, from a lube sump in the power drive housing; lubricating, with the lubrication fluid, an expander shaft bearing supporting the expander; and after lubricating the expander shaft bearing, transferring the lubrication fluid to the lube sump.waste heat recovery power drive and lubrication system therefor. ... Cummins Inc

02/01/18 / #20180028976

Reagent doser diagnostic system and method

Systems and methods are disclosed for determining or diagnosing a reagent dosing system failure to provide sufficient reagent to an exhaust aftertreatment system that includes an scr catalyst to satisfy a reagent dosing command.. . ... Cummins Inc

02/01/18 / #20180028966

Systems and methods for increasing nitrogen dioxide fraction in exhaust gas at low temperature

An aftertreatment system includes a first oxidation catalyst, a second oxidation catalyst, and a turbocharger. The first oxidation catalyst is upstream of the turbocharger and includes a first oxidation catalyst formulation. ... Cummins Inc

01/25/18 / #20180021714

Rotating separator with housing preventing separated liquid carryover

A rotating separator has a housing preventing separated liquid carryover. A plenum between the annular rotating separating filter element and the housing sidewall has one or more flow path separating guides minimizing the flow of separated liquid to the outlet. ... Cummins Inc

01/18/18 / #20180018605

Method and apparatus for platooning of vehicles

Platooning vehicles can result in operational cost savings. Disclosed is a method of apportioning costs that are incurred/saved as a result of platooning vehicles, as well as assigning penalties for unfair platoon participation. ... Cummins Inc

01/18/18 / #20180016966

Method of supporting charge air tubes and managing thermal expansion using a wear sleeve

An engine assembly and methods of supporting components of an engine assembly. An internal combustion engine includes an intake port. ... Cummins Inc

01/11/18 / #20180010515

Dual fuel architecture and method for cylinder bank cutout and increased gas substitution during light load conditions

The present disclosure relates to dual fuel internal combustion engines with multiple cylinder banks and/or cylinder subsets, and exhaust aftertreatment systems associated therewith. Systems and methods are disclosed that relate to engine operations involving fuelling control for fuel cutout of one or more of the cylinder banks and/or cylinder subsets in response to a fuel cutout event to increase gaseous fuel substitution on the other cylinder banks and/or cylinder subsets to satisfy the torque request and thermal management conditions of the aftertreatment system.. ... Cummins Inc

01/11/18 / #20180010508

Asynchronous reductant insertion in aftertreatment systems

An aftertreatment system comprises a first scr system, a second scr system positioned downstream of the scr system and a reductant storage tank. At least one reductant insertion assembly is fluidly coupled to the reductant storage tank. ... Cummins Inc

01/11/18 / #20180010503

Integrated load bank and exhaust heater system with load shed capability for a diesel genset exhaust aftertreatment system

An integrated load bank and exhaust heater for a diesel genset exhaust aftertreatment system of the type having a diesel particulate filter (dpf) and a selective catalytic reduction (scr) section. The load bank/heater can function as a load bank when testing the genset, as a heat source to optimize scr efficiency, as to thermally regenerate the dpf filter.. ... Cummins Inc

01/11/18 / #20180010495

Lubricant level control for lubricated systems

Disclosed herein is a system includes a lubricated component and a lubricant pump that selectively provides lubricant to the lubricated component. The system also includes a lubricant source in lubricant providing communication with the lubricant pump. ... Cummins Inc

01/04/18 / #20180003191

Compressor

A compressor comprises a compressor housing, a compressor wheel mounted within the housing and having compressor blades, and a bearing housing. The compressor housing comprises a cover member and a diffuser member that is connected to both the cover member and the bearing housing. ... Cummins Inc

01/04/18 / #20180003118

Charge-flow adjustment in closed-loop exhaust temperature control on dual fuel engines

Methods and systems of controlling operation of a dual fuel engine are provided, comprising determining a target exhaust temperature, sensing an actual exhaust temperature, determining an exhaust temperature deviation by comparing the actual exhaust temperature to the target exhaust temperature, comparing the exhaust temperature deviation to a threshold, adjusting at least one of an intake throttle, a wastegate, a compressor bypass valve, an exhaust throttle, a vgt and engine valve timing when the exhaust temperature deviation exceeds the threshold to control charge-flow to the engine, and continuing the adjusting until the exhaust temperature deviation is less than the threshold.. . ... Cummins Inc

01/04/18 / #20180003098

Nox sensor diagnostic for an exhaust aftertreatment system

A method for diagnosing nox sensors in an exhaust aftertreatment system includes suspending reductant dosing in an exhaust aftertreatment system; purging a reductant deposit in a selective catalytic reduction (scr) system of the exhaust aftertreatment system; adjusting at least one of an ignition timing and an engine speed for an engine to adjust an engine out nitrogen oxide (nox) amount; receiving measured scr inlet nox data from a scr inlet nox sensor and measured scr outlet nox data from a scr outlet nox sensor; determining a phase shift between the measured scr inlet and scr outlet nox data; applying the determined phase shift to the scr outlet nox data; and determining a diagnostic feature based on the scr inlet nox data and the phase shifted scr outlet nox data regarding a state of the scr inlet and outlet nox sensors.. . ... Cummins Inc

01/04/18 / #20180001261

Article of manufacture for securing a catalyst substrate

An aftertreatment component for use in an exhaust aftertreatment system. The aftertreatment component comprises an aftertreatment substrate and a compressible material. ... Cummins Inc

01/04/18 / #20180001243

Filtration sealing system

A filtration sealing system is provided for sealing a filter element in a housing at a mating interface therebetween. The sealing system includes a keyed interface. ... Cummins Inc

01/04/18 / #20180001238

Filter leak path prevention via interference pin

A replacement filter element having a removable pin attached to the filter element is described. The removable pin is attached to the filter element via a first interference fit. ... Cummins Inc

12/28/17 / #20170370409

A turbomachine shaft and journal bearing assembly

A turbomachine comprising a turbomachine shaft for rotation about an axis and for supporting a turbine wheel at one end of the turbomachine shaft; and a bearing housing having a wall defining a bore in which the turbomachine shaft is received with a substantially annular clearance, the turbomachine shaft being supported for rotation in the bore by at least one journal bearing located within the annular clearance. A surface of the turbomachine shaft which radially underlies the or each journal bearing has a surface roughness (ra) of less than 0.15 microns and the or each journal bearing comprises a bronze alloy incorporating bismuth in an amount of up to around 6 wt %.. ... Cummins Inc

12/28/17 / #20170370307

Advanced exhaust gas recirculation fueling control

For exhaust gas recirculation (egr) fueling control, at least one donor cylinder of a plurality of cylinders in an engine provides exhaust gas to an air intake for the plurality of cylinders. A fuel variable restriction initially provides fuel concurrent with an intake stroke for the at least one donor cylinder in response to a transition from withholding the fuel to the plurality of cylinders.. ... Cummins Inc

12/28/17 / #20170370263

Reductant injection in exhaust manifold

An aftertreatment system comprises a first passageway having a first temperature and a second passageway having a second temperature different than the first temperature. A turbine is disposed downstream from the first passageway and upstream from the second passageway. ... Cummins Inc

12/28/17 / #20170370262

Compact side inlet and outlet exhaust aftertreatment system

An exhaust aftertreatment assembly and method of manufacturing and operating an exhaust aftertreatment assembly. An exhaust aftertreatment assembly includes an aftertreatment housing and an inlet conduit coupled to the aftertreatment housing at an inlet port so as to transfer exhaust gas into the aftertreatment housing. ... Cummins Inc

12/28/17 / #20170368487

Pre-cleaning air filter

A filter element including a filter media, an end cap, and a baffle. The filter media is configured to be secured within a housing. ... Cummins Inc

12/21/17 / #20170361273

Single module integrated aftertreatment module

A selective catalytic reduction system may include a single housing defining a single centerline axis. The selective catalytic reduction system may also include a diesel particulate filter disposed within the single housing and having a dpf center axis aligned with the single centerline axis. ... Cummins Inc

12/21/17 / #20170361250

Auto drain plug for a filtration apparatus

A filtration apparatus comprises a housing defining an internal volume sized to receive a filter element, an inlet for receiving a fluid and an outlet for expelling the fluid. A retention mechanism is disposed in the housing having a ball plug operatively connected thereto and selectively displaceable in an axial direction relative to the housing. ... Cummins Inc

12/14/17 / #20170356399

Inlet diffusers for a two-stage engine charge air system

An aftercooler is provided comprising a housing, an outlet diverter coupled to the housing and having an outlet port, and an inlet diffuser comprising a forward wall having a peripheral rim coupled to the housing, an upper wall connected to the forward wall, a lower wall connected to the forward wall, a first side wall connected to the upper wall and the lower wall and having a first end disposed adjacent the peripheral rim and a second end disposed adjacent an inlet port of the inlet diffuser, a second side wall connected to the upper wall and the lower wall and having a first end disposed adjacent the peripheral rim and a second end disposed adjacent the inlet port, and a plurality of fins disposed within an interior volume of the inlet diffuser collectively distributing air across an outlet opening of the inlet diffuser for delivery to the housing.. . ... Cummins Inc

12/14/17 / #20170356398

Two-stage engine charge air system with branch conduits

A system is provided comprising an engine having a first cylinder bank and a second cylinder bank disposed in a vee configuration, a first compressor configured to compress fluid to a first pressure, a first cooler coupled to the first compressor, the first cooler receiving the compressed fluid from the first compressor and cooling the compressed fluid, a second compressor coupled to the first cooler, the second compressor being configured to receive cooled, compressed fluid from the first cooler and compress the cooled, compressed fluid to a second pressure that is higher than the first pressure, and a second cooler coupled to the second compressor, the second cooler receiving the compressed fluid from the second compressor and cooling the compressed fluid for introduction into the pair of cylinder banks. The first compressor, the first cooler, the second compressor and the second cooler are disposed within the vee.. ... Cummins Inc

12/14/17 / #20170356326

Exhaust manifold for a two-stage engine charge air system

An exhaust manifold is provided comprising a first log comprising a plurality of inlet segments each having a pair of inlet ports configured to receive exhaust gas from a pair of cylinders of an engine, a second log comprising a plurality of inlet segments each having a pair of inlet ports configured to receive exhaust gas from a pair of cylinders of the engine, and a collector coupled to the logs, the collector comprising a first pair of intake openings configured to receive exhaust gas from the first log, a second pair of intake openings configured to receive exhaust gas from the second log and an outlet configured to route the exhaust gas to a turbocharger, wherein the first pair of intake openings are coupled to a pair of bellows of the first log, each of the pair of bellows being coupled to an inlet segment.. . ... Cummins Inc

12/14/17 / #20170356322

Systems and methods for diagnosing selective catalytic reduction systems

An aftertreatment system comprises a scr system, an engine out nox (eonox) adjustment system and a controller. The controller is configured to instruct the eonox adjustment system to adjust an eonox amount between a high eonox level for a first predetermined time and a low eonox level for a second predetermined time when the scr system is in a diagnostic enabling condition. ... Cummins Inc

12/14/17 / #20170356321

Waste heat recovery architecture for opposed-piston engines

A system includes an exhaust passage and a waste heat recovery system. The exhaust passage is structured to fluidly couple to an exhaust manifold of an engine, and to receive exhaust gas from the engine. ... Cummins Inc

12/14/17 / #20170356320

Exhaust fluid filter including hydrocarbon detection witness media

An aftertreatment system includes an exhaust reductant tank configured to store an exhaust reductant. A filter is fluidically coupled to the exhaust reductant tank. ... Cummins Inc

12/14/17 / #20170354934

Selective catalytic reduction with integrated decomposition chamber with exhaust flow swirl generating design

A selective catalytic reduction including a decomposition section including an intake chamber, with a swirl generating plate disposed in an internal volume of the intake chamber. The swirl generating plate includes a curved sidewall, a first end defining an opening, and a second end. ... Cummins Inc

12/07/17 / #20170354048

Plugin-pod for electronic control unit

A ruggedized engine control module (ecu) system includes a plugin-pod, a connector configured to connect the plugin-pod to a connector of an ecu, and signal processing circuitry. The ruggedized ecu system further includes a ruggedized enclosure for the connector and the signal processing circuitry. ... Cummins Inc

12/07/17 / #20170350291

Scr conversion efficiency diagnostics

A system for determining a performance status of an exhaust aftertreatment system may include determining an ammonia-to-nitrogen ratio using a sample ammonia input value and a sample nox input value. An actual nox input value and an actual ammonia input value can be received. ... Cummins Inc

12/07/17 / #20170349078

Hybrid reefer systems

Hybrid power systems include an internal combustion engine and a motor/generator connectable with the engine. A reefer unit is configured to receive power from the motor/generator via a reefer power system that includes an export power inverter and an energy storage device.. ... Cummins Inc

11/30/17 / #20170342997

Compressor and turbocharger

A compressor comprising a housing having an axial intake defining an intake passage and an annular outlet volute defining an annular outlet volute passage, an impeller mounted on a shaft for rotation about a shaft axis between the axial intake and the annular outlet volute, the impeller having a plurality of blades, a diffuser defining an annular diffuser passage surrounding the impeller, the annular diffuser passage having a diffuser inlet downstream of said plurality of blades, the tips of the blades sweeping across said diffuser inlet during use, wherein the compressor further comprises at least two vane members, each having a vane receivable in the diffuser passage and an actuator is coupled to the vane members to move each such that the axial length of it's vane within the diffuser passage is varied.. . ... Cummins Inc

11/30/17 / #20170342857

Turbomachine bearing assembly preloading arrangement

A turbomachine with a shaft supporting a turbine wheel is supported for rotation in a housing. The shaft extends through a bore in the housing and a bearing assembly is disposed in the bore. ... Cummins Inc

11/23/17 / #20170335812

Auto drain system for vacuum side fuel water separators

Fuel filtration systems having an automatic drain assembly for water that accumulates in the filter housing are described. The filtration system includes a filter media that is configured to remove particulate matter and dispersed water contained within the fuel. ... Cummins Inc

11/23/17 / #20170335745

Waste heat recovery integrated cooling module

Integrated cooling systems including a frame configured for mounting to a vehicle chassis in a path of ram air entering an engine compartment of a vehicle, a radiator connected to the frame in the ram air path, a waste heat recovery (whr) condenser, a recouperator connected to the frame above a ram air path and coupled to the whr condenser, and a coolant boiler connected to the frame below the ram air path and coupled to the radiator and recouperator are disclosed. Cooling systems configured for use in a whr system, including an inlet header fixedly disposed on a first end of a condenser, the inlet header fluidly coupled to a heat exchanger to receive the working fluid, and a receiver fixedly disposed on a second end of the condenser opposite the first end, the receiver configured to receive the working fluid from the condenser are also disclosed.. ... Cummins Inc

11/23/17 / #20170333844

Method and system for mitigating urea deposits within an scr catalyst system

A method and system for mitigating a urea deposit within an scr system that includes determining a mass of an accumulated urea deposit present within the scr catalyst and scr piping, comparing the mass of the accumulated urea deposit with a deposit upper threshold limit, and initiating an scr regeneration event when the mass of the accumulated urea deposit is greater than the deposit upper threshold limit. The method further includes determining an amount of nh3 passing through the scr catalyst downstream of the urea deposit, comparing the amount of nh3 passing through the scr catalyst with an nh3 regeneration threshold limit, and terminating the scr regeneration event when the level of nh3 passing through the scr catalyst is less than the scr nh3 regeneration threshold.. ... Cummins Inc

11/16/17 / #20170328788

Temperature and angular speed sensing apparatus

A sensing apparatus for a turbomachine comprises: a magnet; a sensing coil; a power supply; and a processor. The magnet is arranged to produce a magnetic field and the sensing coil is at least partially disposed in the magnetic field. ... Cummins Inc

11/16/17 / #20170328251

Systems and methods for reducing noise in reductant insertion assemblies

An aftertreatment system comprises an aftertreatment component structured to decompose constituents of an exhaust gas produced by an engine. A reductant insertion assembly is fluidly coupled to the aftertreatment component and configured to insert a reductant therein. ... Cummins Inc

11/16/17 / #20170326722

Jointed stall bar attachment

A torque transfer device is provided to transfer torque from a torque tool to a torque limiter device, the torque transfer device comprising a torque limiter connection member adapted for connection to the torque limiter device; a first joint; a second joint; and a tool connection member adapted for connection to the torque tool, wherein the first joint and the second joint are configured to lock responsive to activation of the torque tool to transfer a reaction torque generated by the torque tool to the torque limiter device, and wherein the first joint and the second joint are configured to unlock responsive to deactivation of the torque tool to enable rotation between the torque tool and the torque limiter device along a first axis and a second axis different from the first axis.. . ... Cummins Inc

11/09/17 / #20170321584

Apparatus for facilitating reductant decomposition and mixing

According to one embodiment, an apparatus (50) for mounting to an inner wall (33) of an exhaust tube (32) includes a tube engagement surface (52) and an exhaust engagement surface (54a). The tube engagement surface comprises a convex surface of a constant first radius of curvature about a first axis. ... Cummins Inc

11/09/17 / #20170321583

Nitrogen oxide signal multiplexing system

Nitrogen oxide multiplexing systems are provided. Various embodiments provide for systems comprising an aftertreatment component configured to treat exhaust exiting an engine, a sensor, a conduit, and a switching device. ... Cummins Inc

11/09/17 / #20170321573

Camshaft with low lift dwell profile and methods for operating the same

Systems, apparatus, and methods are disclosed that include an internal combustion engine having a plurality of cylinders and at least one camshaft for opening at least one valve associated with the at least one cylinder. The camshaft includes a cam with a cam lobe defining a cam lobe profile having a base circle portion on a base circle of the cam lobe, a main cam lobe portion, and a low lift dwell portion that extends a constant height from the base circle along a substantial portion of the base circle to increase valve opening overlap and cylinder scavenging.. ... Cummins Inc

10/26/17 / #20170306827

Catalyst failure detection based combined ammonia to nox ratios, conversion inefficiency values and ammonia slip values

Implementations of systems and methods for detecting the failure of an selective catalytic reduction (scr) catalyst may include a controller or one or more circuits for acquiring an ammonia to nox ratio (anr) value for exhaust gas flowing through an exhaust system, acquiring a conversion inefficiency value indicative of a conversion inefficiency of the scr catalyst, acquire an nh3 slip value indicative of an amount of nh3 slip through the exhaust system downstream of the scr catalyst, calculate a combined anr/conversion inefficiency/nh3 slip (acn) value based on the anr value, conversion inefficiency value, and nh3 slip value, and indicating a failure of the scr catalyst responsive to the calculated acn value exceeding a predetermined threshold value.. . ... Cummins Inc

10/26/17 / #20170304781

Diesel exhaust fluid mixing body using variable cross-section switchback arrangement

An aftertreatment system includes a filter configured to receive an exhaust gas and a selective catalytic reduction (scr) system configured to treat the exhaust gas. A body mixer is disposed downstream of the filter and upstream of the scr system. ... Cummins Inc

10/26/17 / #20170304750

Spin-on filter for suction-side and pressure-side applications in filtration systems

A spin-on filter assembly that can be used with both suction-side and pressure-side filtration systems is described. The filter assembly screws onto a filter mounting head. ... Cummins Inc

10/12/17 / #20170292432

Exhaust aftertreatment system diagnostic and conditioning

An engine diagnostic tool includes a diagnostic engine calibration module structured to include a plurality of diagnostic processes for operating an internal combustion engine system of an immobilized vehicle. One or more of the plurality of diagnostic processes are structured to be an intrusive diagnostic process for the internal combustion engine system, wherein the intrusive diagnostic process causes the internal combustion engine system to operate outside of one or more calibration parameters. ... Cummins Inc

10/12/17 / #20170291132

Axial flow air filter element

An axial flow air filter system is described. The system includes an axial flow filter element having a filter media. ... Cummins Inc

10/05/17 / #20170284253

Aftertreatment systems for dual-fuel engines

Systems and methods for an aftertreatment system configured for use with a dual-fuel engine system are described. The method comprises determining an operating mode of the dual-fuel engine. ... Cummins Inc

10/05/17 / #20170282889

Electric engine accessory control

A method of controlling electrically-powered vehicle accessories includes receiving energy data, the energy data providing an indication of an availability of free energy; receiving an electrically-powered vehicle accessory classification for an electrically-powered vehicle accessory, the classification including one of a critical and a discretionary electrically-powered vehicle accessory; receiving a prioritization for the electrically-powered vehicle accessory based on the classification and whether the electrically-powered vehicle accessory has an energy storage component; and providing a command to control energy consumption by the electrically-powered vehicle accessory based on its prioritization and the availability of free energy.. . ... Cummins Inc

09/28/17 / #20170276655

Systems and methods using a gas quality sensor

An apparatus includes an aggregation circuit and a calibration circuit. The aggregation circuit is structured to interpret fuel data indicative of a fuel composition of a fuel provided by a fuel source from a plurality of gas quality sensors. ... Cummins Inc

09/28/17 / #20170274306

Methods and apparatuses for separating liquid particles from a gas-liquid stream

A gas-liquid separator comprises a housing having an inlet for receiving a gas-liquid stream and an outlet for discharging a gas stream. An impactor nozzle structure is supported by the housing and situated downstream of the inlet. ... Cummins Inc

09/28/17 / #20170274301

Filter assembly including a removable filter cartridge

A filter assembly includes a canister housing closable by a lid and containing a removable and replaceable filter element cartridge. The lid is part of the filter element cartridge and a single unitary component therewith, such that removal of the filter element cartridge also removes the lid, and replacement of the filter element cartridge also replaces the lid.. ... Cummins Inc

09/21/17 / #20170268979

System and method of sensor reconditioning in an exhaust aftertreatment system

The present disclosure relates to a system, apparatus, and method for reconditioning a particulate matter sensor in an exhaust aftertreatment system that will resist poisoning. The system and method includes receiving particulate matter data indicating a state of the particulate matter sensor; determining that the particulate matter sensor is in a full state based on the particulate matter data; activating a heating element of the particulate matter sensor to a multiple of intermittent temperatures that clean the sensor pre-patory to the next measurement. ... Cummins Inc

09/21/17 / #20170268373

A turbine generator

A turbine generator comprises an elongate member, a support structure, a turbine wheel and an electrical generator. The support structure comprises a shaft and supports the elongate member for rotation about a rotation axis. ... Cummins Inc

09/21/17 / #20170266649

Hydrocarbon storage optimization and coking prevention on an oxidation catalyst

An oxidation catalyst may include hydrocarbon storage material. One implementation relates to a diesel oxidation catalyst that includes a catalyst having a front zone and a rear zone and a gradient of hydrocarbon storage material on the catalyst extending from the front zone to the rear zone. ... Cummins Inc

09/07/17 / #20170254468

Mounting chassis for genset with reduced clearance

A genset chassis for mounting a genset includes an engine and generator thereon includes a pair of inner beams and an outer beam coupled to an outer sidewall of a corresponding inner beam. The outer beams are vertically offset from the corresponding inner beam such that at least a portion of the outer beams is higher than a corresponding inner beam. ... Cummins Inc

09/07/17 / #20170254351

Anti-rotation device and assembly

A assembly comprises: a first member, a second member and an anti-rotation device. The first member is provided with a bore and a groove on a surface of the bore. ... Cummins Inc








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