-
公开(公告)号:US10914411B2
公开(公告)日:2021-02-09
申请号:US16007388
申请日:2018-06-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Kevin W. Herrala , Michael Kaczmar , Martin K Scott
Abstract: Flexible fluid connection systems are provided with misalignment management, vibration attenuation and compact packaging for a variety of applications. A fluid connection system includes a component that operates using a fluid. The component defines a surface and a passageway containing the fluid and opening through the surface. A fluid line is configured to convey the fluid relative to the component. A connector is made of a flexible material and is connected with the component and with the fluid line. The connector is positioned against the surface and has an end spaced away from the surface through which the fluid line is received.
-
公开(公告)号:US10704504B1
公开(公告)日:2020-07-07
申请号:US16385564
申请日:2019-04-16
Applicant: GM Global Technology Operations LLC
Inventor: Michael A. Smith , Michael Kaczmar , Robert Gallon
Abstract: A method of operating an engine having an intake manifold, an exhaust manifold, a crankshaft, a plurality of working cylinders each having at least one intake valve and at least one exhaust valve, and an exhaust gas recirculation conduit providing fluid communication between the intake manifold and the exhaust manifold. The method includes: while the engine is operating, in response to a no engine torque request, deactivating a number of the working cylinders such that none of the deactivated working cylinders are fired and no air is pumped through the deactivated working cylinders as the crankshaft rotates, operating at least one of the plurality of working cylinders that is not deactivated to pump air through the non-deactivated working cylinder, and controlling gas flow through the exhaust gas recirculation conduit to circulate air pumped through the non-deactivated working cylinder to the intake manifold.
-
公开(公告)号:US20210372332A1
公开(公告)日:2021-12-02
申请号:US16887955
申请日:2020-05-29
Applicant: GM Global Technology Operations LLC
Inventor: Michael Kaczmar , Michael A. Smith , Amanda Keech , Pratap S. Murthy , Jason M. Moore
Abstract: An automobile vehicle overhead camshaft system includes multiple camshafts individually having multiple sliding camshaft barrels. Opposed ends of the camshaft barrels individually have a zero-lift lobe. Multiple intake valves are operated by a first one of the camshafts and multiple exhaust valves are operated by a second one of the camshafts. Multiple actuators operate during a deceleration cylinder cut-off (DCCO) mode to slidably displace the camshaft barrels to position the zero-lift lobe of predetermined ones of the multiple sliding camshaft barrels into contact with at least one of: all of the intake valves; or all of the exhaust valves.
-
公开(公告)号:US10174725B1
公开(公告)日:2019-01-08
申请号:US15847013
申请日:2017-12-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Kevin W. Herrala , Michael Kaczmar , Matthew T. Hamilton
Abstract: A fuel pump coolant assembly includes a fuel pump cap having a flanged bottom surface and a fuel pump support structure. A fuel cooling ring disposed between the fuel pump cap and the fuel pump support structure, wherein a sealed coolant cavity is formed by a portion of an external surface of the fuel pump support structure and an internal surface of the fuel cooling ring.
-
5.
公开(公告)号:US11136945B2
公开(公告)日:2021-10-05
申请号:US16444391
申请日:2019-06-18
Applicant: GM Global Technology Operations LLC
Inventor: Michael Kaczmar , Kenneth M. Eastman , Jason Melecosky
Abstract: An automobile vehicle engine exhaust system with integrated exhaust gas recirculation portion includes a cylinder head having a first exhaust passage internal to the cylinder head. The first exhaust passage is split within the cylinder head into a dedicated exhaust passage opening out of the cylinder head via a dedicated exhaust port, and an exhaust gas recirculation (EGR) exhaust passage opening out of the cylinder head via an EGR exhaust port. A valve assembly is operated to open one of the dedicated exhaust port or the EGR exhaust port while closing the other one of the dedicated exhaust port or the EGR exhaust port.
-
公开(公告)号:US20210033016A1
公开(公告)日:2021-02-04
申请号:US16526357
申请日:2019-07-30
Applicant: GM Global Technology Operations LLC
Inventor: Michael A. Smith , Martino A. Casetti , Michael Kaczmar , Scott R. Jeffrey
Abstract: A method for operating an exhaust gas recirculation system using rationality diagnostics for an automobile vehicle includes: estimating an oxygen storage content (OSC) of a catalytic converter of a vehicle; comparing an amount of oxygen stored in the catalytic converter to an OSC threshold; initiating a closed oxygen storage control (COSC) event for a predetermined one of multiple cylinders of an engine of a vehicle if the OSC threshold is met or exceeded, the COSC event targeting a rich air-fuel equivalence ratio (EQR) for the predetermined one of the multiple cylinders; and directing a fuel injector communicating with the predetermined one of the multiple cylinders to operate the predetermined one of the multiple cylinders at the rich EQR.
-
公开(公告)号:US10415442B2
公开(公告)日:2019-09-17
申请号:US15688687
申请日:2017-08-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Michael Kaczmar , Giorgio Candela , Bryan K. Pryor , Alan E. Bowler , Mark R. Claywell
Abstract: An internal combustion engine includes an engine block including a plurality of cylinders. A cylinder head is mounted to the engine block and includes intake and exhaust passages in communication with the plurality of cylinders. A cylinder head cover is mounted to the cylinder head and defines a cavity between the cylinder head and the cylinder head cover. An oil passage is disposed in the cavity and includes at least one oil jet for spraying oil at a surface of the cylinder head that is heated by the exhaust passages.
-
公开(公告)号:US11441492B2
公开(公告)日:2022-09-13
申请号:US16887955
申请日:2020-05-29
Applicant: GM Global Technology Operations LLC
Inventor: Michael Kaczmar , Michael A. Smith , Amanda Keech , Pratap S. Murthy , Jason M. Moore
Abstract: An automobile vehicle overhead camshaft system includes multiple camshafts individually having multiple sliding camshaft barrels. Opposed ends of the camshaft barrels individually have a zero-lift lobe. Multiple intake valves are operated by a first one of the camshafts and multiple exhaust valves are operated by a second one of the camshafts. Multiple actuators operate during a deceleration cylinder cut-off (DCCO) mode to slidably displace the camshaft barrels to position the zero-lift lobe of predetermined ones of the multiple sliding camshaft barrels into contact with at least one of: all of the intake valves; or all of the exhaust valves.
-
公开(公告)号:US10975753B2
公开(公告)日:2021-04-13
申请号:US16526357
申请日:2019-07-30
Applicant: GM Global Technology Operations LLC
Inventor: Michael A. Smith , Martino A. Casetti , Michael Kaczmar , Scott R. Jeffrey
Abstract: A method for operating an exhaust gas recirculation system using rationality diagnostics for an automobile vehicle includes: estimating an oxygen storage content (OSC) of a catalytic converter of a vehicle; comparing an amount of oxygen stored in the catalytic converter to an OSC threshold; initiating a closed oxygen storage control (COSC) event for a predetermined one of multiple cylinders of an engine of a vehicle if the OSC threshold is met or exceeded, the COSC event targeting a rich air-fuel equivalence ratio (EQR) for the predetermined one of the multiple cylinders; and directing a fuel injector communicating with the predetermined one of the multiple cylinders to operate the predetermined one of the multiple cylinders at the rich EQR.
-
公开(公告)号:US10815946B1
公开(公告)日:2020-10-27
申请号:US16448417
申请日:2019-06-21
Applicant: GM Global Technology Operations LLC
Inventor: Michael Kaczmar , Amanda Keech
IPC: F02M35/10 , F02M35/08 , F02B29/04 , F02M35/104 , F02M35/16
Abstract: An intake manifold of an automobile vehicle includes a manifold body connected to a cylinder head. A runner is in communication with the cylinder head. A plenum is in communication with the runner. An inner dividing wall is positioned between and partially separates the runner and the plenum while allowing communication between the plenum and the runner over a dividing wall end of the inner dividing wall. An orifice opening extends through the inner dividing wall providing a drain path from the plenum to the runner. The orifice drains a fluid collecting in the plenum to the runner.
-
-
-
-
-
-
-
-
-