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Mtu Friedrichshafen Gmbh patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "M" | Mtu Friedrichshafen Gmbh-related inventors


Method for smoothly connecting a load during an activated cylinder deactivation process of an internal combustion engine

A method for operating an internal combustion engine, in particular a gas engine, having two cylinder banks, each of which includes multiple cylinders, wherein each cylinder bank is independently supplied with charging pressure, and having a device for actively deactivating at least one cylinder of each cylinder bank. When the operating state is switched from a state with at least one deactivated cylinder to an operating state with at least one other activated cylinder, the charging pressure is reduced prior to the activation of the other cylinder.. ... Mtu Friedrichshafen Gmbh

Internal combustion engine and method for operating an internal combustion engine

An internal combustion engine including at least one combustion chamber having a main chamber and a prechamber, wherein the prechamber is in fluid connection with the main chamber via at least one bore. The at least one combustion chamber is connected to a charging path for the supply of a combustion air-fuel mixture into the combustion chamber via the charging path. ... Mtu Friedrichshafen Gmbh

Injection system for an internal combustion engine and internal combustion engine having such an injection system

An injection system for an internal combustion engine including at least one injector and a high-pressure accumulator, which has a fluid connection to the at least one injector on the one side and has a fluid connection to a fuel reservoir via a high-pressure pump on the other side, wherein a suction throttle is associated with the high-pressure pump as a first pressure-setting element. At least two pressure control valves are provided, via which the high-pressure accumulator can be brought into fluid connection with the fuel reservoir.. ... Mtu Friedrichshafen Gmbh

Method for operating an internal combustion engine having at least one turbocharger, control device, equipped for implementing a method of this type, internal combustion engine having a control device of this type and motor vehicle having an internal combustion engine of this type

A method for operating an internal combustion engine having a turbocharger, wherein a fuel quantity is supplied to the combustion chamber of the engine in a stationary state, which fuel quantity is determined according to a first predetermined relationship between a load requirement to the engine and a rating determining a fuel quantity to be supplied to the combustion chamber, wherein a second predetermined relationship between the rating and the load requirement is used, wherein according to the second relationship, a given load requirement is assigned a larger quantity of fuel than according to the first relationship. In a transient state of the engine, the fuel quantity supplied to the combustion chamber is determined based on an interpolated value of the rating, which is determined for the rating by an interpolation between a value resulting from the first relationship and a value resulting from the second relationship.. ... Mtu Friedrichshafen Gmbh

Method for detecting continuous injection during the operation of an internal combustion engine, injection system for an internal combustion engine and internal combustion engine

A method for detecting continuous injection during the operation of an internal combustion engine with an injection system having a high-pressure accumulator for a fuel, wherein —a high pressure in the injection system is monitored as a function of time, wherein —in order to detect continuous injection it is checked whether the high pressure has dropped by a predetermined continuous injection differential pressure value within a predetermined continuous injection time interval, wherein —it is checked whether a reduction valve which connects the high-pressure accumulator to a fuel reservoir has been triggered, and wherein —continuous injection is detected if —a reduction valve has not been triggered in a predetermined checking time interval before the dropping of the high pressure, and if —the high pressure has dropped by the predetermined continuous injection differential value amount within the predetermined continuous injection time interval.. . ... Mtu Friedrichshafen Gmbh

Method for knock control in an internal combustion engine

A method for carrying out the operation of an internal combustion engine, wherein liquid fuel injection amounts are injected at cylinders of a group of cylinders of the internal combustion engine in the context of injection events, wherein in a first step, a first cylinder of the group with the strongest knocking tendency over a time period is determined, and in a second step an injection correction occurs such that the injection events at the first determined cylinder can be sequentially reduced in their injection duration or injection amount by a first correction value, while the injection duration or injection amount of the injection events at the other cylinders of the group are sequentially increased by a second correction value.. . ... Mtu Friedrichshafen Gmbh

Diesel engine and method for starting a diesel engine

A diesel engine, in particular a high-power diesel engine, which has a variable valve train including an adjusting unit for adjusting a valve opening time, a valve lift, a camshaft phase position and/or a valve steering, and a control or regulating unit for controlling the adjusting unit. The control and/or regulating unit includes at least one operational mode provided for starting the engine when the engine is at a low temperature, in which the control and/or regulating unit is provided to adjust the valve opening time, at least during a preliminary phase for at least one inlet valve, which overlaps at least with one compression stroke of an associated cylinder, and to interrupt an injection of fuel at least into the cylinder associated with the inlet valve. ... Mtu Friedrichshafen Gmbh

Method for operating an internal combustion engine, and internal combustion engine

A method for operating an internal combustion engine, having of the following steps: operating the internal combustion engine with a gas fuel; detecting a lambda value in the exhaust gas of the internal combustion engine; determining at least one variable from the detected lambda value, characterizing the quality of the gaseous fuel; and controlling the internal combustion engine based on the at least one variable. . ... Mtu Friedrichshafen Gmbh

Multi-fuel injector for an internal combustion engine, method for operating a multi-fuel injector and internal combustion engine

In a multi-fuel injector for an internal combustion engine, including a housing with a nozzle needle movably disposed therein between a closed position in which the nozzle needle blocks a discharge of fuel from a collection chamber, to which a first fuel is supplied, above the nozzle needle, a control chamber is arranged to which a high pressure second fuel is supplied which acts on the nozzle needle to bias it into a closed position, and a control valve is provided in a pressure release line extending from the control chamber for a controlled release of the second fuel from the control chamber by opening the control valve so as to relief the closing pressure on the nozzle needle in order to permit lifting of the nozzle needle from the closed position for discharging the fuel from the collection chamber.. . ... Mtu Friedrichshafen Gmbh

Emission signature modification device

An emission signature modification device for modifying an acoustic signature of an exhaust gas stream, including an exhaust gas guiding device that guides the exhaust gas stream in the flow direction thereof from an inlet area to an outlet area. An active acoustic emission modification device modifies the acoustic emission of the exhaust gas stream in predetermined operating states. ... Mtu Friedrichshafen Gmbh

Cooling system, and internal combustion engine comprising a cooling system of said type

A cooling system including a first coolant line and a second coolant line, at least one first component to be cooled, into which the first coolant line opens, and a first ventilation line. The first ventilation line is fluidically connected to the at least one first component and is configured for ventilating the at least one first component. ... Mtu Friedrichshafen Gmbh

Fuel tank cleaning arrangement

In a tank cleaning arrangement for cleaning liquid fuel stored in a fuel tank, the fuel is circulated from various selectable outlet areas to various selectable inlet areas provided on the tank via a conduit system including circulating pumps and filters arranged at various locations. At least one circulating pump is driven mechanically by an engine associated with the tank cleaning arrangement, whereby the tank cleaning arrangement is shut down automatically when the engine is shut down, so that a control as well as a separate drive system for the at least one circulating pump can be omitted. ... Mtu Friedrichshafen Gmbh

Monitoring an engine by means of cylinder pressure sensors, preferably in lean gas engines with a flushed prechamber

A method for operating an internal combustion engine, in particular a gas engine, preferably a lean gas engine, which has at least one cylinder, in order to improve the combustion process, a prechamber is provided for igniting a mixture in a main chamber. A pressure curve is detected by a pressure sensor in the main chamber dependent on a crank angle, and the quantity of supplied fuel is controlled or regulated for each individual cylinder using a fuel metering device and the pressure sensor dependent on a desired output and/or a desired torque and/or a desired rotational speed of the internal combustion engine.. ... Mtu Friedrichshafen Gmbh

Method for operating an internal combustion engine, control device and internal combustion engine

A method for operating an internal combustion engine with an exhaust gas after treatment system, which includes at least one particulate filter. The method is characterized by a parameter-controlled partial regeneration of the particulate filter.. ... Mtu Friedrichshafen Gmbh

03/16/17 / #20170074146

Method for determining the aging of an oxidation catalyst in an exhaust gas aftertreatment system of an internal combustion engine, method for detecting ash in a particle filter of an exhaust gas aftertreatment system, control device, and internal combustion engine

A method for determining the aging of an oxidation catalyst in an exhaust gas aftertreatment system of an internal combustion engine, having the following steps: ascertaining a soot burn rate of a particle filter of the exhaust gas aftertreatment system; adapting a function having at least one adaptation parameter to the soot burn rate dependent on at least one variable, a value of the adaptation parameter depending on an aging of the oxidation catalyst; and determining the aging of the oxidation catalyst using the adaptation parameter value ascertained by adapting the function.. . ... Mtu Friedrichshafen Gmbh

03/09/17 / #20170067409

Method for operating an internal combustion engine, injection system for an internal combustion engine and internal combustion engine

A method for operating an internal combustion engine having an injection system which has a high-pressure accumulator, wherein a high pressure in the high-pressure accumulator is regulated via a suction throttle on the low-pressure side as a first pressure control member in a first high-pressure control loop, wherein in a normal operation a high-pressure disturbance variable is produced via a pressure control valve on the high-pressure side as a second pressure control member, via which fuel is redirected from the high-pressure accumulator to a fuel reservoir. For this purpose, the high pressure in a safety operation is regulated by the pressure control valve via a second high pressure control loop, or, in the safety operation, a maximum fuel volume flow is continuously redirected from the high pressure accumulator to the fuel reservoir via the pressure control valve.. ... Mtu Friedrichshafen Gmbh

03/09/17 / #20170067384

Method for regenerating a particle filter during the operation of an internal combustion engine

A method for regenerating a particle filter during the operation of an internal combustion engine, having the following steps: detecting at least one loading parameter which is characteristic of a present loading of the particle filter, wherein an active regeneration measure can be carried out recurrently in a manner dependent on the loading parameter; determining a time window for a regeneration of the particle filter; and determining a prediction for an operating state of the internal combustion engine expected within the time window, wherein the active regeneration measure at a time indicated for it by the loading parameter is skipped if the prediction predicts that, within the time window, an operating state of the internal combustion engine will arise in which a regeneration of the particle filter takes place without an active regeneration measure.. . ... Mtu Friedrichshafen Gmbh

02/16/17 / #20170044963

Method for detecting the aging of a heterogeneous catalytic converter, exhaust after-treatment system for an internal combustion engine, and internal combustion engine

A method for detecting the aging of a heterogeneous catalytic converter, including the following steps: acquiring at least one measurement signal in a media flow passing through the catalytic converter downstream of the catalytic converter; applying a time-variant input signal to the media flow and/or the catalytic converter; evaluating a behavior of the at least one measurement signal as a function of the time-variant input signal; and detecting a state of aging of the catalytic converter.. . ... Mtu Friedrichshafen Gmbh

02/16/17 / #20170044955

Exhaust gas housing for an exhaust gas system of an internal combustion engine

An exhaust gas housing for an exhaust gas system of an internal combustion engine, including a rail system which is provided for receiving at least one rectangular canning and which forms an insert which has a direction of insertion which is transverse to the direction flow, and which is also provided to positively fix at least one canning on a plane perpendicular to the direction of insertion.. . ... Mtu Friedrichshafen Gmbh

02/09/17 / #20170037761

Modular exhaust gas treatment device for an exhaust gas system of an internal combustion engine

An exhaust gas treatment device for an exhaust gas system of an internal combustion engine, including a housing which has at least two equivalently formed receiving elements for arranging the agn modules, and at least one exhaust gas guide module which is inserted into one of receiving elements, and an exhaust gas guide module for an exhaust gas treatment device or this type.. . ... Mtu Friedrichshafen Gmbh

01/05/17 / #20170002784

Method for improving the cold start capacity of an internal combustion engine, and crankcase ventilating device for this purpose

A method for improving the cold start capacity of an internal combustion engine which is cooled with water that is pre-heated for the cold start. The pre-heated hot water is conducted through flow paths in a region of the crankcase ventilating device and/or in a water/air heat exchanger of the crankcase ventilating device. ... Mtu Friedrichshafen Gmbh








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