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公开(公告)号：US20220316418A1
公开(公告)日：2022-10-06
申请号：US17640528
申请日：2020-09-04
发明人： Jörn Wildhagen , Artur Hunger , Martin Gebhardt
摘要： A crankcase includes: at least one cylinder for an internal combustion engine, the cylinder including: a cylinder interior; a cylinder liner which is arranged within the cylinder interior; a cylinder head which closes the cylinder interior, wherein the cylinder head includes a receiving way; a cooling system which guides a coolant flow and has a cooling chamber; a distribution system to separate the coolant flow into a primary partial flow and at least one secondary partial flow, the distribution system including a main channel for the primary partial flow and at least one branch-off passage for the at least one secondary partial flow, the at least one branch-off passage branching off from the main channel and being arranged transversely to the main channel for the at least one secondary partial flow.
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2.发明授权公开(公告)号：US11319888B2
公开(公告)日：2022-05-03
申请号：US17214258
申请日：2021-03-26
发明人： Knut Graichen , Daniel Bergmann , Roman Geiselhart , Jens Niemeyer , Jörg Remele , Karsten Harder , Tim Späder
摘要： A method for regulation of an internal combustion engine with an SCR catalytic converter in which the operating point of the engine is predefined by an engine control unit and the operating point of the catalytic converter is predefined by an SCR control unit. An overall system quality measure is calculated by an optimizer in accordance with fed back values of the engine control unit and fed back values of the SCR control unit, by changing the default values for the engine control unit and the SCR control unit, the optimizer minimizes the overall system quality measure for a prediction horizon regarding operating costs. On the basis of the minimized overall system quality measure the optimizer sets the default values for the engine control unit and the default values for the SCR control unit as decisive for setting the operating point of the engine and the catalytic converter.
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公开(公告)号：US20210381464A1
公开(公告)日：2021-12-09
申请号：US16635397
申请日：2018-08-07
发明人： Armin DÖLKER
IPC分类号： F02D41/38
摘要： A method for operating an internal combustion engine having an injection system which has a high-pressure accumulator, high pressure in the high-pressure accumulator being controlled via a suction throttle on the low-pressure side, acting as a first pressure control element in a first high-pressure control loop. During normal operation, a high-pressure disturbance variable is produced by a pressure regulating valve on the high-pressure side, acting as an additional pressure control element, via which fuel is re-directed from the high-pressure accumulator into a fuel reservoir, the at least one pressure regulating valve being controlled, during normal operation, based on a set volumetric flow rate for the fuel to be re-directed. A temporal development of the set volumetric rate is sensed and the set volumetric flow rate is filtered, a time constant for the filtering of the set volumetric flow rate being selected as a function of the sensed temporal development.
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公开(公告)号：US11149597B2
公开(公告)日：2021-10-19
申请号：US16467713
申请日：2017-12-11
发明人： Wolfgang Fimml , Jonathan Lipp , Johannes Schalk
摘要： A valve drive for an internal combustion engine, including a gas exchange valve; a first mechanically driven drive mechanism; and a second drive mechanism connected to the gas exchange valve to move same. The first and second drive mechanisms connected via a hydraulic coupling device that has a pressure chamber, which can be relieved of pressure via a valve device and is designed to couple the drive mechanisms by hydraulic pressure and to decouple same in a pressure-relieved state. The valve device has two switch valves fluidically connected to the pressure chamber in parallel and via which the pressure chamber is relieved of pressure in the open state of at least one of the switch valves. The valve drive has a controller that actuates the switch valves in a delayed manner to provide a variable valve stroke of the gas exchange valve during a stroke movement.
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公开(公告)号：US11067024B2
公开(公告)日：2021-07-20
申请号：US16611369
申请日：2018-05-02
发明人： Ion Madan , Michael Mohr , Rolf Pfeifer , Patrick Stöckle
摘要： A method for requirement-based servicing of an injector in a common-rail system in which, during ongoing operation of the engine, a current operating point is stored as a function of the rail pressure and of the fuel injection mass, and the current operating point is multiplied by a damage factor and is stored as a reference injection cycle as a function of the rail pressure as well as of the fuel injection mass. A total reference injection cycle is calculated by forming sums over the reference injection cycles, and a load factor is calculated as a function of the total reference injection cycle and the permissible injection cycles, and the load factor is set as decisive for the servicing recommendation of the injector.
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公开(公告)号：US20210180535A1
公开(公告)日：2021-06-17
申请号：US17164915
申请日：2021-02-02
发明人： Knut Graichen , Michael Buchholz , Daniel Bergmann , Jens Niemeyer , Jörg Remele
摘要： A method for the model-based control and regulation of an internal combustion engine. The method includes calculating, as a function of a set torque, injection system set values for controlling the injection system actuators via a combustion model and calculating gas path set values for controlling the gas path actuators via a gas path model. The combustion model is adapted during operation of the internal combustion engine into the form of a complete data-based model. A measure of quality is minimized by an optimizer by changing the injection system set values and gas path set values within a prediction horizon, and the injection system set values and gas path set values are set by the optimizer, which is critical for adjusting the operating point of the internal combustion engine by using the minimized measure of quality.
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公开(公告)号：US10975795B2
公开(公告)日：2021-04-13
申请号：US16652652
申请日：2018-07-20
发明人： Jens Niemeyer , Andreas Flohr , Jörg Remele , Christian Wolf
摘要： A method for model-based control and regulation of an internal combustion engine. An emission class for operating the engine is read from a first library by an optimizer; a maximum mechanical component load is read from a second library by the optimizer using the engine type; and the emission class and the component load are set as mandatory for a combustion model and a gas path model. Injection system target values for actuating injection system actuators are calculated using the combustion model based on a target torque. Gas path target values for actuating gas path actuators are calculated using the gas path model based on the target torque. A quality measurement is calculated by the optimizer based on the injection system and gas path target values. The quality measurement is minimized by the optimizer by changing the injection system and gas path target values within a prediction horizon. The injection system and gas path target values are set as decisive for adjusting the operating point of the engine by the optimizer using the minimized quality measurement.
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公开(公告)号：US10961878B2
公开(公告)日：2021-03-30
申请号：US16092351
申请日：2017-03-23
发明人： Wolfgang Fimml , Jonathan Lipp
摘要： A valve train for the variable actuation of an inlet valve and an outlet valve of a combustion chamber of an internal combustion engine, having a first operative connection between a valve actuating device and the inlet valve and a second operative connection between the valve actuating device and the outlet valve. The first operative connection and the second operative connection are assigned an interrupting element which is set up to temporarily interrupt the operative connections. The first operative connection and the second operative connection are connected to the same interrupting element in such a way that the first operative connection and the second operative connection can be interrupted temporarily by way of the interrupting element.
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公开(公告)号：US10927783B2
公开(公告)日：2021-02-23
申请号：US16603747
申请日：2018-04-05
发明人： Armin Dölker
摘要： A method for identifying a continuously injecting combustion chamber of an internal combustion engine which has an injection system with a high-pressure accumulator for a fuel, having the following steps: time-dependent sensing of a high pressure in the injection system; starting a continuous-injection detection process at a starting time while the internal combustion engine is operating; identifying a start time of a pressure drop which occurs chronologically before the starting time and at which the high pressure in the injection system begins to drop if continuous injection has been detected; and identifying at least one combustion chamber to which the continuous injection can be assigned, on the basis of the start time of the pressure drop.
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公开(公告)号：US10890120B2
公开(公告)日：2021-01-12
申请号：US15751345
申请日：2016-07-27
发明人： Marc Hehle , Philipp Klaas
IPC分类号： C10L3/00 , F02D19/06 , C10L3/06 , F02D19/08 , C10K3/06 , C10L1/185 , C01B3/34 , C07C41/01 , F02B7/06
摘要： A method for producing a fuel composition, including the following steps: providing special gas containing combustible substances; reforming a first part of the special gas by producing synthesis gas; producing dimethyl ether from the synthesis gas by producing a reaction mixture containing a dimethyl ether; separating methanol from the reaction mixture and producing a methanol-reduced dimethyl ether mixture; and bringing together a second part of the special gas with the methanol reduced dimethyl ether mixture in order to obtain the fuel composition.
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