公开(公告)号：US12044190B2

公开(公告)日：2024-07-23

申请号：US18103391

申请日：2023-01-30

申请人： INNIO Jenbacher GmbH & Co OG

发明人： Alexander Mairhofer ,  Johannes Huber ,  Josef Thalhauser ,  Matthias Grotz ,  Michael Franz Litzlfellner ,  Alexander Gasteiger ,  Michael Perktold

IPC分类号： F02D41/38 ,  F02D41/00 ,  F02D41/12

CPC分类号： F02D41/3863 ,  F02D41/0027 ,  F02D41/12 ,  F02D2041/389 ,  F02D2200/0602 ,  F02D2250/31

摘要： An internal combustion engine with at least one combustion chamber, at least one fuel delivery line for the delivery of fuel to at least one combustion chamber, and at least one differential pressure control valve for controlling the pressure in the at least one fuel delivery line. The at least one differential pressure control valve is configured to perform a valve opening or valve closing movement based on a pressure difference between the at least one fuel delivery line and a reference volume having a reference pressure. The internal combustion engine further includes at least one pressure relief valve, separate from the at least one differential pressure control valve, and configured to open to cause a pressure relief in the reference volume and a decrease in the reference pressure if a drop occurs in the power to be performed by the internal combustion engine.

公开(公告)号：US12037968B1

公开(公告)日：2024-07-16

申请号：US18158520

申请日：2023-01-24

申请人： FCA US LLC

发明人： Louai Faied ,  John M Lebar ,  Ethan M English

IPC分类号： F02M69/46 ,  F02D41/32 ,  F02M37/08 ,  F02M69/54

CPC分类号： F02M69/462 ,  F02D41/32 ,  F02M69/54 ,  F02D2200/021 ,  F02D2200/0414 ,  F02D2200/0602 ,  F02D2250/31 ,  F02M2037/087

摘要： A fuel delivery system for a vehicle having an engine includes a fuel injection system, a fuel supply line configured to supply fuel from to the fuel injection system, and a fuel pressure sensor. An active expansion chamber (AEC) accumulator is fluidly coupled to the fuel supply line and includes a housing defining an interior chamber and an adjustable expansion chamber, a plunger assembly separating the interior chamber and the adjustable expansion chamber, and an actuator configured to selectively move the plunger assembly to actively adjust a volume of the adjustable expansion chamber. A controller is configured to detect a pressure change condition in the fuel delivery system and, in response, automatically adjust the volume of the adjustable expansion chamber to maintain the pressure of the fuel delivery system below a predetermined threshold to thereby facilitate preventing fuel leakage at the fuel injectors when the engine is shut off.

公开(公告)号：US11808232B2

公开(公告)日：2023-11-07

申请号：US18163640

申请日：2023-02-02

申请人： Stanadyne LLC

发明人： Michael Hornby ,  Stephen Bugos ,  Michael Kaput ,  Srinu Gunturu

IPC分类号： F02D41/40 ,  F02D41/38

CPC分类号： F02D41/402 ,  F02D41/3845 ,  F02D2200/021 ,  F02D2200/0404 ,  F02D2200/0602 ,  F02D2200/101 ,  F02D2250/31

摘要： A port fuel injection system includes a fuel pump configured to produce a flow of pressurized liquid fuel at a pressure between 10 and 50 bar. A fuel rail is connected to receive the flow of pressurized liquid fuel from the fuel pump, the fuel rail. A plurality of fuel injectors, including one fuel injector positioned in the intake port of each engine cylinder upstream of the intake valve for the engine cylinder are connected to receive pressurized fuel from the fuel rail. An engine control unit (ECU) receives signals from sensors on the internal combustion engine and is programmed to actuate the fuel injectors to deliver fuel to each engine cylinder over a full range of engine operating conditions. A port fuel injection system with high pressure and fast acting fuel injectors improves fuel delivery and performance over the full range of engine operating conditions.

公开(公告)号：US20180355812A1

公开(公告)日：2018-12-13

申请号：US15773637

申请日：2016-11-03

申请人： GE Jenbacher GmbH & Co. OG

发明人： Raphael BURGMAIR ,  Medy SATRIA ,  Dino IMHOF ,  Stephan LAIMINGER

IPC分类号： F02D41/14 ,  F02D41/38

CPC分类号： F02D41/1402 ,  F02D41/1401 ,  F02D41/3836 ,  F02D41/40 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/143 ,  F02D2041/1434 ,  F02D2041/286 ,  F02D2200/0602 ,  F02D2200/0611 ,  F02D2200/0616 ,  F02D2200/063 ,  F02D2250/31 ,  Y02T10/44

摘要： An internal combustion engine is provided. The internal combustion engine includes a control device, and at least one injector for liquid fuel that includes a discharge opening for the liquid fuel. The at least one injector is connected to a collection volume by means of a line for liquid fuel. Liquid fuel can flow through the line for liquid fuel from the at least one injector to the collection volume. A control element that can be adjusted by the control device via a control signal is also provided. Via the control element, a back pressure in the line for liquid fuel can be adjusted in order to adjust an amount of liquid fuel discharged through the discharge opening of the at least one injector. Also provided is a method for operating an internal combustion engine and an injector.

公开(公告)号：US10072622B2

公开(公告)日：2018-09-11

申请号：US15137421

申请日：2016-04-25

申请人： Toyota Jidosha Kabushiki Kaisha

发明人： Kazuhiro Yamada

IPC分类号： F02M37/20 ,  F02D41/30 ,  F02M37/10 ,  F02D41/38

CPC分类号： F02M37/20 ,  F02D41/3082 ,  F02D41/3094 ,  F02D41/3836 ,  F02D41/3854 ,  F02D2200/0602 ,  F02D2200/0606 ,  F02D2250/02 ,  F02D2250/31 ,  F02M37/10

摘要： When a state where a lowered amount of a detection value of high-pressure side fuel pressure with respect to target fuel pressure is at least equal to a specified lowering determination value at least continues for a specified lowering determination time, a pump high-temperature determination is set “ON”. In the case where the pump high-temperature determination is set “ON”, boost control for increasing pressure of fuel that is supplied from a feed pump to a high-pressure pump (a set value of feed pressure) from a low-pressure set value to a high-pressure set value is executed.

公开(公告)号：US20180216566A1

公开(公告)日：2018-08-02

申请号：US15839670

申请日：2017-12-12

申请人： General Electric Company

发明人： Morse N. Taxon ,  Pradheepram Ottikkutti

IPC分类号： F02D41/38 ,  F23K5/04 ,  F02M59/36

CPC分类号： F02D41/3854 ,  F02D41/009 ,  F02D41/221 ,  F02D41/3827 ,  F02D41/3845 ,  F02D41/407 ,  F02D2041/224 ,  F02D2041/3881 ,  F02D2200/0602 ,  F02D2250/31 ,  F02M59/34 ,  F02M59/367 ,  F02M63/0285 ,  F23K5/04

摘要： Various methods and systems are provided for health assessments of a fuel system. In one example, a fuel system includes a high-pressure fuel pump operable to increase fuel pressure from a first pressure to a second pressure, a common fuel rail fluidly coupling the high-pressure fuel pump to a plurality of fuel injectors each of which is operable to inject fuel to individual cylinders of an engine, a pressure sensor operable to detect a pressure of fuel at the common fuel rail, and a controller operable to diagnose a condition of the high-pressure fuel pump based on output from the pressure sensor.

公开(公告)号：US09982618B2

公开(公告)日：2018-05-29

申请号：US14849873

申请日：2015-09-10

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Takashi Suzuki ,  Tomoya Suzuki ,  Keisuke Nagakura

IPC分类号： F02D41/22 ,  F02D41/30 ,  F02D41/08 ,  F02D41/06 ,  F02D41/38 ,  F02M63/02

CPC分类号： F02D41/222 ,  F02D41/061 ,  F02D41/08 ,  F02D41/3082 ,  F02D41/3094 ,  F02D2041/223 ,  F02D2041/227 ,  F02D2041/3881 ,  F02D2250/04 ,  F02D2250/31 ,  F02M63/0225

摘要： An engine includes a low-pressure delivery pipe that stores fuel to be injected from port injection valves, a feed pump that supplies the fuel to the low-pressure delivery pipe, a high-pressure delivery pipe that stores the fuel to be injected from in-cylinder injection valves, a high-pressure pump driven in response to rotation of the engine, and a fuel pressure sensor that detects a pressure of the fuel stored in the low-pressure delivery pipe. An engine ECU controls the feed pump based on a detection value from a fuel pressure sensor, and when the engine ECU executes an abnormality diagnosis of the fuel pressure sensor, the engine ECU increases a rotational speed of the engine to be higher than a rotational speed when the engine ECU does not execute an abnormality diagnosis of the fuel pressure sensor. This improves the accuracy of an abnormality determination of the fuel pressure sensor.

公开(公告)号：US20180080405A1

公开(公告)日：2018-03-22

申请号：US15825261

申请日：2017-11-29

申请人： CUMMINS INC.

发明人： Lester L. Peters ,  David L. Buchanan ,  Bradlee J. Stroia ,  William David Daniel ,  Rajesh K. Garg ,  Richard D. Thomas

IPC分类号： F02D41/38 ,  F02M61/18 ,  F02M51/06 ,  F02M61/06

CPC分类号： F02D41/38 ,  F02D2041/389 ,  F02D2250/31 ,  F02M51/06 ,  F02M61/06 ,  F02M61/1886 ,  F02M61/1893

摘要： 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. Additionally, an actuator of the fuel injector is configured to move the valve member during a fuel injection cycle. The fuel injector is configured to operate in at least three modes.

公开(公告)号：US09890735B2

公开(公告)日：2018-02-13

申请号：US14783563

申请日：2014-05-23

申请人： MTU FRIEDRICHSHAFEN GMBH

发明人： Armin Dölker

IPC分类号： F02D41/38 ,  F02M59/36 ,  F02D19/06 ,  F02D41/06 ,  F02D41/14 ,  F02D41/20 ,  F02D41/00 ,  F02M63/02

CPC分类号： F02D41/3845 ,  F02D19/0605 ,  F02D19/0649 ,  F02D41/0025 ,  F02D41/062 ,  F02D41/1402 ,  F02D41/20 ,  F02D2041/1409 ,  F02D2041/142 ,  F02D2041/1422 ,  F02D2041/202 ,  F02D2041/3881 ,  F02D2200/0602 ,  F02D2200/101 ,  F02D2250/31 ,  F02M59/366 ,  F02M63/023 ,  Y02T10/36

摘要： A method and an assembly for controlling the pressure in a high-pressure region of an injection system in an internal combustion engine. A set high pressure is compared to an actual high pressure in order to determine a control deviation, the control deviation representing an input variable of a controller. A high pressure pump is controlled by a solenoid valve and the angle at which the delivery of fuel by the at least one high-pressure pump is to start is used as a manipulated variable of the high-pressure closed-loop control system.

公开(公告)号：US09869260B2

公开(公告)日：2018-01-16

申请号：US15066355

申请日：2016-03-10

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Susumu Kojima ,  Yusuke Suzuki

IPC分类号： F02D41/06 ,  F02D41/04 ,  F02D41/02 ,  F02N11/08 ,  F02D41/00 ,  F02D41/38

CPC分类号： F02D41/065 ,  F02D41/0002 ,  F02D41/021 ,  F02D41/042 ,  F02D41/3836 ,  F02D2200/501 ,  F02D2250/31 ,  F02N11/0844 ,  F02N2200/0801 ,  Y02T10/42 ,  Y02T10/48

摘要： The control device executes a first control for controlling a throttle valve opening degree to a first opening degree when a particular condition is satisfied. The particular condition is a condition that it is predicted upon a satisfaction of an engine stop condition that a level of one of noise and vibration generated in an interior of a vehicle from a source other than an engine is equal to or larger than a predetermined level when an engine rotation stops. The control device executes a second control for controlling the throttle valve opening degree to a second opening degree larger than the first opening degree without executing the first control when the particular condition is not satisfied upon the satisfaction of the engine stop condition.