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Caterpillar Inc patents


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

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


System and controlling propulsion of machine

A system for controlling propulsion of a machine is described. The system includes a first sensor for generating a first signal indicative of an articulation angle of the machine. The system also includes at least one transmission power unit coupled to front and rear powertrains of the machine. The system... Caterpillar Inc

Scallop resistant idler heat treatment

An idler wheel for use with a track chain of a vehicle that includes a plurality of track pins and bushings comprises a main body that includes a generally cylindrical configuration defining an axis of rotation, a circumferential direction and a radial direction, the main body including a central portion... Caterpillar Inc

Track chain assembly of undercarriage with link having increased pitch

A track chain assembly includes a track pin, a first link, and a second link. The first link defines a first pair of pin passages in spaced relationship to each other by a first link pitch. The first link is mounted to the track pin such that the track pin... Caterpillar Inc

Spool holder and supporting spool of wire with spool holder

A spool holder includes a cylinder defining a longitudinal axis and having an external surface on which a spool of wire may be supported. A first plate is positioned at a first end of the cylinder and a second plate is positioned at a second end of the cylinder. Both... Caterpillar Inc

Rotating hydraulic gear motor

A mechanism comprises a long shaft and a first gear attached to the long shaft, a short shaft and a second gear attached to the short shaft, the second gear meshing with the first gear. A yoke bushing member defining a first aperture and a second aperture that are spaced... Caterpillar Inc

Combustion bowl of a piston for an engine

A piston for an engine may include a piston body. The piston body may include a piston crown disposed symmetrically about a central longitudinal axis of the piston. A combustion bowl may be recessed into the piston body and may be offset axially inwardly with respect to the piston crown.... Caterpillar Inc

Common rail fuel system having pump-accumulator injectors

A fuel system is disclosed for use with an engine. The fuel system may have a common rail, a first type of fuel injector fluidly connected to the common rail, and a second type of fuel injector fluidly connected to the common rail. The second type of fuel injector may... Caterpillar Inc

Stand-alone common rail capable injector system

A fuel system is disclosed for use with an engine, including a fuel injector assembly fluidly coupled with a low-pressure fuel conduit, an accumulator, and a cap within an opening in the accumulator. The fuel injector assembly may be structured to draw in low-pressure fuel, pressurize the fuel, and store... Caterpillar Inc

System for detecting failure location in a pump

A method for detecting a leak in a pump comprises: monitoring discharge pressure time domain signals of the pump; monitoring piston position time domain signals for each piston of a plurality of pistons; filtering the monitored discharge pressure time domain signals and the monitored piston position time domain signals of... Caterpillar Inc

Pin joint for coupling components

A pin joint for coupling a first component with a second component is provided. The pin joint includes a shell disposed within an opening in the first component. The shell has a bore and a coupling portion. The pin joint also includes a sleeve disposed concentrically within the bore of... Caterpillar Inc

Methods and systems for detecting unbalanced payload condition in machines

A method for detecting an unbalanced payload condition in a machine is disclosed. The method includes detecting, by a first sensor, a pressure exerted on each of one or more struts in the machine by a payload. The method further includes detecting, by a second sensor, one or more operational... Caterpillar Inc

System and manufacturing component

A method of manufacturing a component is disclosed. The method includes depositing a material on a removable form structure having geometry corresponding to an internal space of the component. The material is deposited on the removable form structure by an additive manufacturing technique. The method includes removing the removable form... Caterpillar Inc

Control strategy for a powertrain system

A control system for a powertrain in a machine includes a first sensor which generates a first signal indicative of a ground speed of the machine. The control system includes a second sensor which generates a second signal indicative of a load of an engine in the powertrain. The control... Caterpillar Inc

Stabilizer pad for a work machine

A stabilizer pad for use with stabilizer legs of a work machine is disclosed. The stabilizer pad may include a frame configured for attachment to the stabilizer leg of the work machine. The stabilizer pad may further include a first surface configured to contact a ground surface, the first surface... Caterpillar Inc

Hydraulic actuator arrangement

A hydraulic actuator with a sensor mounted on the actuator cylinder for determining the position of the actuator. The arrangement comprises a hydraulic actuator which includes a cylinder having a bore in which a piston is slidably mounted for movement along the cylinder to extend and retract the hydraulic actuator.... Caterpillar Inc

Piston and cylinder features for enhanced squish flow

An internal combustion engine may include an engine block having a plurality of cylinders therein, with each cylinder being closed by a cylinder head. The internal combustion engine may also include a piston reciprocatingly mounted within each cylinder and defining a combustion chamber therebetween. The internal combustion engine may also... Caterpillar Inc

Piston with flame guiding passageways

An internal combustion engine may have a piston and a plurality of flame guiding passageways provided within the piston. The passageways may be configured within a circumferential wall of the piston to guide the one or more flames away from a stagnation point and to a mixing zone.... Caterpillar Inc

Method to detect uncommanded spool valve positioning and stop fluid flow to hydraulic actuators

A system and method for detecting uncommanded positioning of at least one valve spool in a plurality of valve spools and for stopping fluid flow to a plurality of hydraulic actuators fluidly connected to the plurality of valve spools is disclosed. The method may comprise receiving a signal fluid pressure... Caterpillar Inc

Locking mechanism for removable base plate on vibratory compactor

A locking mechanism for a base plate of a vibratory compactor includes a locking actuator configured to alternately lock and unlock the base plate relative to the vibratory compactor, and a hydraulic control circuit in fluid communication with a source of pressurized hydraulic fluid and the locking actuator. The hydraulic... Caterpillar Inc

Constant down force vibratory compactor

A vibratory compactor for a work machine, includes a support frame that defines an interior space and includes a base disposed at a lower end thereof configured to contact a work surface. A guide member is attached to the support frame. A vibratory mechanism includes a vibratory housing and includes... Caterpillar Inc

Stability control system for machine in motion

A system may comprise a plurality of sensors configured to transmit sensor information regarding a speed of a machine, a position of an implement of the machine, a payload of the machine, a grade of a surface on which the machine is traveling. The system may further comprise an electronic... Caterpillar Inc

On-engine fluid monitoring system

A monitoring system for monitoring fluid parameters in a lubrication system of an engine may include an input conduit configured to be in fluid communication with the lubrication system at a first location upstream of an oil cooler of the lubrication system. A monitoring device may be in fluid communication... Caterpillar Inc

Pre-chamber assembly for fuel injector

A pre-chamber for a fuel injector is disclosed. The pre-chamber includes a cylindrical body member extending axially from a first end portion to a second end portion opposite to the first end portion. The pre-chamber further includes a bottom plate located proximal to the first end portion of the cylindrical... Caterpillar Inc

Turbocharger having cooling arrangement for compressor and method thereof

A method of cooling a compressor, providing compressed working fluid, in a natural gas based combustion engine is provided. The method includes diverting at least a portion of natural gas from a fuel tank of the combustion engine. The method further includes routing the portion of natural gas towards the... Caterpillar Inc

Protection device for limiting pump cavitation in common rail system

A pressurized fuel system for an engine includes a fuel pump in a pump protection device structured to drain pressurized fuel from a common rail to provide fuel flow through the fuel pump that limits cavitation. The device includes a valve mechanism having a first valve and a second valve... Caterpillar Inc

System for detecting faults in a pump

A method for detecting faults in a pump includes: monitoring suction pressure and discharge pressure time domain signals, filtering the monitored suction pressure time domain signals and the discharge pressure time domain signals via a band pass filter, performing Fast Fourier Transform on the filtered suction pressure time domain signals... Caterpillar Inc

System, method, and apparatus to retain in-cylinder linear position sensor

A system, a method, and an apparatus to retain an in-cylinder linear position sensor in a cavity of a housing of a hydraulic cylinder assembly are described. The in-cylinder linear position sensor includes a sensor body that houses circuitry of the in-cylinder linear position sensor, and a sensor cap that... Caterpillar Inc

Face seal with energized lip and counterface

A seal assembly for use in a dynamic pin joint defining axial and radial directions comprises a counterface seal ring subassembly including a counterface seal ring member that includes a radially extending planar seal face and a first contoured load ring interface, and a first load ring.... Caterpillar Inc

Systems, methods, and dynamically planning machine dumping operations

A system for planning material dumping operations includes one or more machine controllers and a dump zone controller. Each of the one or more machine controllers are configured to provide dump planning information for the one or more machines and configured to determine actual dump information for dumping operations of... Caterpillar Inc

Real-time remote visualization of frame damage from field data

A visualization system for visualizing structural integrity of a frame is provided. The visualization system may include a monitoring device having one or more sensors coupled to the frame, and a workstation in communication with the one or more sensors. The sensors may be configured to measure field damage data.... Caterpillar Inc

Filter assembly

A modular bracket for mounting a first filter and a second filter thereon is provided. The modular bracket includes a first mount and a second mount adapted to receive the first filter and the second filter thereon respectively. The modular bracket includes a first chamber and a second chamber provided... Caterpillar Inc

Methods of manufacturing engine system components

A method of making an engine system component is disclosed. The method may include loading a first metal-based material and a second metal-based material into an extrusion chamber. The first metal-based material may concentrically surround the second metal-based material, and the first metal-based material may have at least one of... Caterpillar Inc

Infinite angle chamfering tool

A tool unit for performing a chamfering operation on a workpiece is disclosed. The tool unit includes a body, a plunger, at least one insert holder, and at least one cutter insert. The body includes a bore, and the plunger is movably positioned within the bore. The insert holder is... Caterpillar Inc

Undercarriage assembly

An undercarriage assembly associated with a machine is provided. The undercarriage assembly includes a ground engaging track adapted to crawl on a ground surface. The ground engaging track includes a plurality of track shoes. The ground engaging track also includes a plurality of pairs of track links pivotally connected to... Caterpillar Inc

Interface for coupling work tool to machine

An interface for coupling a work tool to a stick of a machine is provided. The interface includes a plate having an engaging face and a coupling face. The engaging face of the plate is connected to the work tool. The interface also includes a first bracket and a second... Caterpillar Inc

03/22/18 / #20180080194

Drawbar assembly for motor grader

A drawbar assembly for a motor grader is provided. The drawbar assembly includes a yoke plate, a backbar, a drawbar tube, and a sleeve. The yoke plate includes a first surface and a second surface. The backbar is attached to the first surface of the yoke plate. The backbar includes... Caterpillar Inc

03/22/18 / #20180080358

Fuel apportionment strategy for in-cylinder dosing

An engine has an injector communicating with a combustion chamber to introduce a plurality of dosing shots to mix with exhaust gases and regenerate an aftertreatment device downstream of the combustion chamber. An apportionment strategy can apportion a per cylinder quantity, representing the quantity of dosing fuel to introduce per... Caterpillar Inc

03/15/18 / #20180073203

Vibration isolator with hydraulic pass-thru

A vibration isolator is provided comprising a first attachment plate defining a first central bore, a second attachment plate defining a second central bore, and a resilient member disposed between the first and second attachment plates, wherein the resilient member defines a third central bore and the first, second and... Caterpillar Inc

03/15/18 / #20180073208

Automated method to determine haul road repair need

Operational data from vehicles operating over a haul road at a work site may be used to determine when road conditions exist that require maintenance to be performed on the haul road. As the vehicles travel over the haul road, sensors transmit sensor signals with the operational data for locations... Caterpillar Inc

03/15/18 / #20180073407

Reductant delivery system

A reductant delivery system for an engine system. The engine system includes an engine having an exhaust conduit and a turbocharger with a compressor. The reductant delivery system having an injector, a storage system, a sensor and a controller. The injector is configured to inject a reductant into the exhaust... Caterpillar Inc

03/15/18 / #20180073423

Method and system for detecting thermostat failure in an engine cooling system

A method for thermostat failure detection in an engine cooling system is provided. The engine cooling system includes a coolant pump and a thermostat for providing a coolant flow between an engine and a radiator. The method includes determining one or more engine parameters. Further, a pressure difference between a... Caterpillar Inc

03/15/18 / #20180073427

Valve cover assembly

A valve cover assembly is provided for an internal combustion engine is provided. It is advantageous to be able to access the various components of an engine valve train without disconnecting of fuel lines that supply fuel to an engine cylinder. The current disclosure provides a valve cover assembly comprising... Caterpillar Inc

03/15/18 / #20180073452

Automatic calibration a dual fuel internal combustion engine

A system and method for automatically calibrating an engine operating with a first fuel and a second fuel includes comparing each of a plurality of engine operating parameters with a corresponding limit, determining whether any of the plurality of engine operating parameters has exceeded its corresponding limit and, while none... Caterpillar Inc

03/15/18 / #20180073462

Piston for internal combustion engine having high temperature-capable crown piece

A piston for an internal combustion engine includes a compound piston body having a crown piece joined to a skirt piece by a circumferential weld. The skirt piece is formed of a lower temperature-capable steel such as a low alloy steel, and the crown piece is formed of a higher... Caterpillar Inc

03/15/18 / #20180073474

Air intake system for engine

An adsorber assembly for separating contaminants, such as siloxanes, from air is provided. The adsorber assembly includes a housing having an inlet and an outlet. The adsorber assembly also includes at least one separation module stacked within the housing. The at least one separation module includes a first cartridge having... Caterpillar Inc

03/15/18 / #20180073481

Gas engine ignition system for extending life and lean limit

An ignition device and strategies are provided for extending spark plug life and air-fuel mixture lean limits in natural gas engines while maintaining or improving the engine thermal efficiency. The ignition device may include a plug body extending between a terminal end and an electrode end, a plurality of electrode... Caterpillar Inc

03/15/18 / #20180073543

Counterbore plug

A counterbore plug comprises a generally cylindrical annular body defining: a cylindrical axis and a radial direction, a first end and a second end that are disposed along the cylindrical axis, an aperture that extends at least partially from the first end to the second end, the body including a... Caterpillar Inc

03/15/18 / #20180073644

Edgeless valve spool design with variable clearance

A valve spool may include a cylindrical spool body having a spool longitudinal axis, a first spool body end wall and a second spool body end wall disposed axially opposite the first spool body end wall, and a spool outer surface. The spool outer surface may include a first spool... Caterpillar Inc

03/15/18 / #20180074178

Systems and methods for detecting objects proximate to a machine utilizing a learned process

A system for detecting objects in a zone proximate to a machine includes a detection sensor, an output device, and a controller. The controller is configured to define an obstruction zone proximate to the machine and within the zone, receive detection signals from the detection sensor, determine if the detection... Caterpillar Inc

03/15/18 / #20180075543

System and optimizing fleet operation at mining site

A system and method of optimizing fleet operation at a mining site is provided. The system includes a non-transitory computer readable medium storing a program causing a computer to execute steps of identifying a forthcoming dig area including material to be extracted by a digging tool, assigning at least one... Caterpillar Inc

03/08/18 / #20180065066

Filter element locking mechanism for clean service

A filter element may include a tubular element, first and second end caps, each associated with an opposite end of the tubular element, filter media positioned around the tubular element and between the first and second end caps, a biasing element associated with the tubular element, and a retainer element... Caterpillar Inc

03/08/18 / #20180065691

Slider for track assembly of machine

A slider for a track assembly of a machine is provided. The slider includes an elongated base portion coupled to a frame and a sliding portion extending from the elongated base portion. The sliding portion includes an outer surface configured to slidably engage with a track link of the track... Caterpillar Inc

03/08/18 / #20180066413

System and swing control

A swing control assembly for a first machine is provided. The swing control assembly includes a position detection module configured to generate a signal indicative of a relative position of a second machine with respect to the first machine. The swing control assembly includes a controller communicably coupled to the... Caterpillar Inc

03/08/18 / #20180066415

Control system for a machine

A system for controlling operation of a first material engaging work implement includes a first machine, a second machine, and a controller. The controller is configured to store a kinematic model and characteristics of the implement system, determine a second machine operation zone, with the second machine operation zone being... Caterpillar Inc

03/08/18 / #20180066618

System, method, and apparatus to control engine intake manifold air temperature

A system, method, and apparatus for controlling intake manifold air temperature (IMAT) of a dual fuel engine are provided. A determination regarding whether IMAT is to be modified is performed, followed by modifying the IMAT by changing flow of coolant in a cooling circuit in fluid communication with a separate... Caterpillar Inc

03/08/18 / #20180068484

System and onboard and offboard visualization of material characteristics in mining

A system and method of onboard and offboard visualization of material characteristics in mining is provided. According to one aspect, the method includes a step of providing a voxel representation of a mining area. The voxel representation includes a plurality of voxels. At least one voxel of the plurality of... Caterpillar Inc

03/01/18 / #20180056389

System and manufacturing a component

A system for manufacturing a Three Dimensional (3D) printed component is provided. The system includes a substrate adapted for at least partially 3D printing the component thereon. The substrate includes a first geometrical feature. The system also includes a plurality of processing stations interconnected to one another. Each of the... Caterpillar Inc

03/01/18 / #20180056839

Truck cycle segmentation monitoring system and method

A machine having a work implement includes a sensor connected to the work implement, the sensor providing a signal indicative of a change in acceleration of the work implement. A cycle controller associated with the sensor, the cycle controller disposed to receive the signal and operating to monitor the signal.... Caterpillar Inc

03/01/18 / #20180057082

Splined idler for scallop resistance

An idler wheel for use with a track chain of a vehicle that includes a plurality of track pins and bushings comprises a main body that includes a generally cylindrical configuration defining an axis of rotation, a circumferential direction and a radial direction, the main body including a central portion... Caterpillar Inc

03/01/18 / #20180057083

Shim for track roller frame

A shim for a track roller frame is provided. The shim includes a first surface and a second surface. The first surface and the second surface are laterally spaced apart from each other. The first surface and the second surface define a thickness of the shim therebetween. The shim further... Caterpillar Inc

03/01/18 / #20180058034

Multi-component shell profile for a bucket

A bucket comprises a shell including a curved member that defines a first transverse end, a second transverse end, a top edge and a bottom flat portion, a first flat angled member attached to the first transverse end of the curved member and a second flat angled member attached to... Caterpillar Inc

03/01/18 / #20180058043

Reversible flow path construction

A flow control manifold that routes pressurized fluid from one of a first fluid manifold connection and a second fluid manifold connection of the flow control manifold to an input of a work tool and directs return fluid from an outlet of the work tool to the other of the... Caterpillar Inc

03/01/18 / #20180058218

Safety hydraulic dump for a cryogenic pump

A cryogenic fluid pump includes a drive assembly and a pumping assembly. The drive assembly includes a cylinder. The cylinder includes an annular dump channel formed in and extending about an interior wall of the cylinder. A piston is reciprocatable within the cylinder between a first and second position. A... Caterpillar Inc

03/01/18 / #20180058305

Method of remanufacturing a prechamber assembly

A method of remanufacturing a prechamber assembly includes determining a width W of an original circumferential weld bead that extends around and joins a proximal end of an outer peripheral wall of a prechamber housing and a distal end of an outer peripheral wall of a body assembly, cutting through... Caterpillar Inc

03/01/18 / #20180058312

Fuel reformer cooler

A fuel reformer cooler for cooling a hydrogen-containing effluent released from a fuel reformer is disclosed. The fuel reformer cooler may comprise a heat transfer wall separating an effluent conduit from a coolant conduit and permitting heat transfer from the effluent in the effluent conduit to a coolant in the... Caterpillar Inc

Patent Packs
03/01/18 / #20180058371

Piston balancing heat dissipation and combustion properties in internal combustion engine

A piston for an internal combustion engine includes a piston crown having a combustion bowl formed therein, a piston rim extending circumferentially around the combustion bowl and a heat-dissipating chamfer between the combustion bowl and the piston rim. The chamfer is structured by way of at least one of size,... Caterpillar Inc

03/01/18 / #20180058389

Exhaust gas recirculation cooler with damping rods

An Exhaust Gas Recirculation (EGR) cooler assembly and an EGR cooler conduit assembly are provided. Heat exchange tubes in EGR cooler assemblies may vibrate and contact the EGR cooler shell, thereby leading to the tube fretting and potentially failing. The current disclosure is directed to the use of damping rods... Caterpillar Inc

03/01/18 / #20180058416

Gas fuel engine spark plug failure detection

A system for detecting spark plug failures in an engine is provided. The system may include one or more sensor devices coupled to the engine and configured to measure engine data, a controller in communication with the sensor devices, and an output device. The controller may be configured to determine... Caterpillar Inc

03/01/18 / #20180058443

Method for determining cavitation in pumps

A method for determining cavitation in a pump is disclosed. The method includes detecting, by a sensor, a pressure of a fluid pumped by the pump and determining, by a controller, whether the pressure exceeds a pressure range. Cavitation is determined when the pressure exceeds the pressure range. The method... Caterpillar Inc

03/01/18 / #20180058482

System for hydraulic pump health monitoring

A system may comprise a first sensor; a second sensor; and an electronic control module. The electronic control module may be configured to determine a flow of the fluid based on information regarding the pressure from the first sensor and information regarding the temperature from the second sensor; determine a... Caterpillar Inc

03/01/18 / #20180059069

Methods and systems for monitoring quality of hydraulic fluid in electro-hydraulic (eh) valve

A method for monitoring quality of a hydraulic fluid in an electro-hydraulic (EH) valve is disclosed. The method includes applying predetermined signal to a solenoid coil, surrounding a pusher pin in EH valve, to facilitate oscillation of a pusher pin in EH valve to change static friction between the pusher... Caterpillar Inc

03/01/18 / #20180059668

System and controlling edge dumping of mobile machines

A control system for a machine traveling on a work surface is provided. The control system includes a perception system generating data indicative of a contour of the work surface. The control system includes a controller communicably coupled to the perception system. The controller receives a signal indicative of a... Caterpillar Inc

03/01/18 / #20180059700

Micro grid power system

A micro grid power system includes a plurality of generator sets, a photovoltaic system, an external load, and a controller. Each generator set includes an engine and a sensor to determine a temperature of exhaust gases exiting the engine. The photovoltaic system includes a plurality of photovoltaic panels for generating... Caterpillar Inc

03/01/18 / #20180060930

Workflow management and online reverse auction system

A workflow management and online reverse auction system includes a non-transitory computer readable medium storing a program. The program causes a computer to execute steps of posting electronic part details for a part to be sourced to an online reverse auction site, and receiving electronic bids including prices for supplying... Caterpillar Inc

03/01/18 / #20180063427

Image processing system using predefined stitching configurations

An image processing system is disclosed for a mobile machine. The system may include a plurality of cameras mounted on the machine and configured to capture image data of an environment around the machine. The system may further include a display and a processing device. The processing device may obtain... Caterpillar Inc

03/01/18 / #20180063446

Method of imaging a machine environment and machine system implementing same

Imaging a machine environment includes receiving image data from imaging devices on a machine, and comparing a calibration feature in an image defined by the image data with a virtual reference feature in a stored calibration model. A plurality of images are stitched together based on an error between the... Caterpillar Inc

02/22/18 / #20180050421

Hybrid laser cladding system

A hybrid laser cladding nozzle configured to both powder feed and wire feed a cladding layer onto a substrate surface is disclosed. The hybrid laser cladding nozzle may comprise a central laser channel that is configured to convey a laser beam onto the substrate surface to produce a laser beam... Caterpillar Inc

02/22/18 / #20180051438

Tilt bucket recessed pivot design

A tilting bucket assembly comprises an adapter subassembly including a two coupler members defining a coupler distance, a base plate attached to the coupler members that defines a first recess, a torsion tube that defines a second recess, and a bucket subassembly that is pivotally connected to the adapter subassembly,... Caterpillar Inc

02/22/18 / #20180051605

Conduit for maintaining temperature of fluid

A conduit for transferring fluid from one location to another. The conduit includes a tube having an outer surface and an insulation layer surrounding the tube. A heating layer is disposed between the insulation layer and the tube, such that the heating layer is wrapped around the outer surface of... Caterpillar Inc

02/22/18 / #20180051636

System for controlling the total emissions produced by a multi-engine power system

A power system for powering a load is provided. The power system includes a plurality of power sources with each power source including an engine. A SCR system is associated with the engine of at least one of the plurality of power sources. A controller is in communication with the... Caterpillar Inc

Patent Packs
02/22/18 / #20180051695

Pump for an engine

A pump for an engine includes a suction chamber, a discharge chamber, and a piston at least partly received within a relief chamber. The piston has first and second passageways provided therein. The second passageway is located closer to a face of the piston than the first passageway. The piston... Caterpillar Inc

02/15/18 / #20180043868

System and controlling braking of autonomous machine

A braking system for controlling braking of a machine is disclosed. The braking system includes a first set of sensors to detect a first set of information indicative of operational characteristics of an engine and a transmission system. The braking system includes a second set of sensors to detect a... Caterpillar Inc

02/15/18 / #20180043894

Powertrain operation and regulation

One or more powertrains can include a motor-generator disposed therein that is electrically coupled to an energy storage device through an inverter gate. A regulation strategy can monitor operation of the powertrain to regulate the inverter gate to selectively discharge energy from the energy storage device to the motor-generator to... Caterpillar Inc

02/15/18 / #20180044887

Closed-loop control of swing

A system and method for controlling the swing of a machine is disclosed. The system may comprise a hydrostatic circuit that includes an electronic displacement control pump and a first swing motor fluidly connected in a closed loop circuit. The electronic displacement control pump configured to control the supply of... Caterpillar Inc

02/15/18 / #20180044888

Method of controlling machines at worksite

A method of controlling machines for performing operations at a worksite is disclosed. The method includes receiving pre-construction terrain data, design terrain data, and resource data and then defining a plurality of constraints based on the data. Operations of the machines are simulated based on the data. The method includes... Caterpillar Inc

02/15/18 / #20180045095

Emission control with switchability between emission standards

An emission control system for an engine includes a user interface having an emission standards switchability button, which may initiate a plurality of control operations to effect a switch between two different emission standards applicable to operation of the engine. A controller communicatively coupled with the user interface includes a... Caterpillar Inc

02/15/18 / #20180047347

System, method, and apparatus to selectively control brightness of liquid crystal display

The disclosure relates to a system, a method, and an apparatus to selectively control brightness of information displayed on a Liquid Crystal Display (LCD). A graphics layer can be provided in a display area of the LCD, and a semi-transparent mask layer can be provided above the graphics layer. An... Caterpillar Inc

02/08/18 / #20180037281

Swing arm idler rise height adjustment

An idler wheel recoil assembly mounts an idler wheel to a roller frame of an undercarriage of a track-type machine. The idler wheel recoil assembly includes a recoil shaft and spring mounted on the roller frame for reciprocal movement of the recoil shaft, and a swing arm pivotally connected to... Caterpillar Inc

02/08/18 / #20180038066

Machine control system having multi-blade position coordination

A control system is disclosed for use with a machine. The control system may have a first blade mountable to the machine and configured to engage a ground surface below the machine, and at least a first actuator configured to move the first blade. The control system may also have... Caterpillar Inc

02/08/18 / #20180038072

Frame assembly for machine

A frame assembly for a machine includes a main frame and a crossmember. The main frame includes first pair of rails and a second pair of rails laterally spaced from the first pair of rails. Each of the first pair of rails and the second pair of rails includes a... Caterpillar Inc

02/08/18 / #20180038083

Systems and methods for determining wear of a ground-engaging tool

A method for monitoring wear of a ground-engaging tool associated with a machine in relation to productivity of the machine is disclosed. The ground-engaging tool defines an inner cavity and a first wall. The method includes receiving a first characteristic signal associated with the first wall from a first sensor,... Caterpillar Inc

02/08/18 / #20180038216

Hydraulic fracturing detecting pump failure of same

A hydraulic fracturing system with pump failure detection includes an engine, transmission, hydraulic fracturing pump and a driveshaft coupled between the transmission and the hydraulic fracturing pump to transfer torque from the engine to the hydraulic fracturing pump. A torque sensor is positioned and configured to measure torque acting on... Caterpillar Inc

02/08/18 / #20180038269

Sparkplug assembly with prechamber volume

A sparkplug assembly having a prechamber volume is operatively associated with the combustion chamber of an internal combustion engine such that the prechamber volume is in fluid communication with the combustion chamber. To purge exhaust gasses from the prechamber volume prior to ignition, the sparkplug assembly is operatively associated with... Caterpillar Inc

02/08/18 / #20180038464

High-inertia stator assembly for controlling operation of a one-way clutch in a torque converter

A stator assembly for a torque converter having an impeller and a turbine includes a one-way clutch. The one-way clutch includes a plurality of rollers arranged radially in a spaced apart relation to one another. Each of the plurality of rollers is biased into a floating position by a corresponding... Caterpillar Inc

02/08/18 / #20180038656

Work machine heat exchanger

A work machine heat exchanger is provided. The work machine heat exchanger includes an upstream tank having an inlet and a downstream tank having an outlet. The work machine heat exchanger also includes a first core and a second core, both coupled between the upstream and the downstream tank, and... Caterpillar Inc

02/08/18 / #20180040226

Cavitation limiting strategies for pumping system

Operating a pumping system includes moving a pumping element to transition liquid through the pump, and determining a value based at least in part upon inlet pressure and pumping speed that is indicative of a pressure of the liquid within a bore susceptible to cavitation. Pumping speed and/or inlet pressure... Caterpillar Inc

02/08/18 / #20180040228

Systems and methods for presence monitoring of a ground-engaging tool relative to a machine

A system for monitoring presence of a ground-engaging tool relative to a machine, on a worksite, is disclosed. The system includes a sensor operatively coupled to the ground-engaging tool, a signal receiver, and a controller. The sensor is configured to transmit an identifying wireless signal. The controller is configured to... Caterpillar Inc

02/01/18 / #20180029652

Arrangement for coupling main frame with equalizer bar of a machine

An arrangement for pivotally coupling a saddle member of a main frame with an equalizer bar of a machine. The saddle member includes one or more bores. The equalizer bar includes a central portion. The arrangement includes a pin and one or more bearings. The pin extends through each of... Caterpillar Inc

02/01/18 / #20180029653

Method of track link manufacture

A method of fabricating a track link comprises creating a rail portion of a track link from a high alloy steel, creating a main body portion of a track link from a low alloy steel, and friction adhering the rail portion onto the main body portion.... Caterpillar Inc

02/01/18 / #20180029654

Recoil assembly for undercarriage system

A bulkhead assembly for a track adjust cylinder of an undercarriage system is provided. The bulkhead assembly includes a bulkhead having an opening to receive the track adjust cylinder. A guide element having a hollow cylindrical configuration is attached to the bulkhead and supports the track adjust cylinder. A seal... Caterpillar Inc

02/01/18 / #20180029851

Linkage assembly for machine

A linkage assembly for a machine is disclosed. The linkage assembly includes a boom and a stick pivotally coupled to a front end of the boom. The boom includes a base plate having a first portion and a second portion. The second portion is inclined at angle with respect to... Caterpillar Inc

02/01/18 / #20180030686

Boom assembly of machine

The present disclosure provides a load carrying member for a machine. The load carrying member includes an outer shell, an inner shell disposed within the outer shell. The inner shell is pre-stressed. The load carrying member also includes a polymer composite disposed between an outer surface of the inner shell... Caterpillar Inc

02/01/18 / #20180030882

Coupling mechanism

A coupling mechanism for a tie bar and a side sheet of an aftercooler is provided. The coupling mechanism includes a male portion of a mechanical joint. The male portion is coupled with a tail end of the tie bar. The coupling mechanism also includes a female portion of the... Caterpillar Inc

02/01/18 / #20180030890

System for determining piston damage based on carbon deposit growth

A machine may comprise a piston; a memory; and an electronic control module. The electronic control module may be configured to determine a temperature of a bowl rim of the piston; calculate a temperature of an oil gallery of the piston based on the temperature of the bowl rim; determine... Caterpillar Inc

02/01/18 / #20180030891

System for determining damage based on liner polish

A machine may comprise a memory configured to store liner polish information; and an electronic control module. The electronic control module may be configured to: determine a load factor based on an amount of load on the engine; determine an end of injection factor associated with the engine; determine a... Caterpillar Inc

02/01/18 / #20180030905

Gas engine fast start fuel strategy

A priming system for an engine system having a throttle valve configured to regulate a flow of air and fuel into an intake manifold of an engine is disclosed. The priming system may include a first sensor configured to generate a first sensor signal indicative of a value of an... Caterpillar Inc

02/01/18 / #20180030907

Natural gas fuel reformer control for lean burn gas engines

A reformer system may include a reformer device having a fuel inlet, an air inlet and a gas outlet, a first valve set coupled to the fuel inlet and configured to selectively supply a reformer fuel flow from an engine fuel flow to the fuel inlet, a second valve set... Caterpillar Inc

02/01/18 / #20180030913

System for determining piston pin bore wear

A machine may comprise a piston; a memory; and an electronic control module. The electronic control module may be configured to obtain information identifying a previous amount of wear of the piston pin bore and information identifying a wear limit; determine a base piston pin bore wear rate; calculate an... Caterpillar Inc

02/01/18 / #20180030914

System for determining piston ring wear

A machine may comprise a piston; a memory; and an electronic control module. The electronic control module may be configured to obtain information identifying a previous amount of wear of the piston ring and information identifying an initial dimension of a coating of the piston ring; determine a piston ring... Caterpillar Inc

02/01/18 / #20180030921

Piston top land structure

A piston for a premixed spark-ignited or premixed dual fuel internal combustion engine is disclosed. The piston may be configured to reciprocate along a longitudinal axis of a combustion chamber defined by a cylinder of the engine. The piston may comprise a piston head, a top annular groove configured to... Caterpillar Inc

Social Network Patent Pack
02/01/18 / #20180031102

Differential assembly for machine

A differential assembly for a drive train having a first axle shaft and a second axle shaft is provided. The differential assembly includes a differential gear set, a first pinion gear disposed on the first axle shaft, a second pinion gear disposed on the second axle shaft, each of the... Caterpillar Inc

02/01/18 / #20180031116

Assembly guide for sleeved planetary carriers

A method for assembling a carrier subassembly for use with a planetary gear train comprises inserting a gear so that the bore of the gear surrounds the bore of the carrier member, and aligning an assembly guide having a bore by engaging a portion of the assembly guide with an... Caterpillar Inc

02/01/18 / #20180031836

Smart glasses having interfering light filtering

A pair of smart glasses having interfering light filtering includes a glasses frame defining a horizontal view path and a semi-transparent display supported on the glasses frame and positioned in the horizontal view path. A projection mechanism is supported on the glasses frame and has a projection lens positioned above... Caterpillar Inc

02/01/18 / #20180029654

Recoil assembly for undercarriage system

A bulkhead assembly for a track adjust cylinder of an undercarriage system is provided. The bulkhead assembly includes a bulkhead having an opening to receive the track adjust cylinder. A guide element having a hollow cylindrical configuration is attached to the bulkhead and supports the track adjust cylinder. A seal... Caterpillar Inc








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