公开(公告)号：US11242850B2

公开(公告)日：2022-02-08

申请号：US16534524

申请日：2019-08-07

Applicant: GM Global Technology Operations LLC

Inventor： Sean M. McGowan ,  Mark R. Claywell ,  Chung Y. Wei

IPC: F04C2/08 ,  B62D25/08 ,  F01M1/02 ,  B62D25/00

Abstract: A gear assembly of a scavenge oil pump for a vehicle is provided. The assembly comprises a first pair of meshing gears comprising a first drive gear disposed about a drive shaft and a first slave gear disposed about a slave drive in parallel relationship with the drive shaft. The first drive gear and first slave gear are in rotational meshing cooperation. The assembly comprises a second pair of meshing gears comprising a second drive gear disposed about the drive shaft and a second slave gear disposed about the slave drive. The second drive gear and second slave gear are in rotational meshing cooperation. The second pair of meshing gears is disposed linearly adjacent to the first pair of meshing gears. The first pair and the second pair of meshing gears have about ⅜ of a tooth spacing relative to each other for torque transmission of scavenge oil.

公开(公告)号：US20200317184A1

公开(公告)日：2020-10-08

申请号：US16377878

申请日：2019-04-08

Applicant: GM Global Technology Operations LLC

Inventor： Maqsood Rizwan Ali Khan ,  Mark R. Claywell ,  Ryan Calkin

IPC: B60W10/198 ,  B60W30/14 ,  B60W30/18

Abstract: A method for exhaust braking includes monitoring, by a controller of a vehicle, an engine speed of an internal combustion engine; comparing, by the controller, the engine speed with the a predetermined braking speed threshold to determine whether the engine speed is greater than the a predetermined braking speed threshold; and, in response to determining that the engine speed is greater than the a predetermined braking speed threshold, switching the vehicle to an exhaust braking mode.

公开(公告)号：US20200182346A1

公开(公告)日：2020-06-11

申请号：US16214719

申请日：2018-12-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sean M. McGowan ,  Mark R. Claywell ,  Maqsood Rizwan Ali Khan

IPC: F16H57/00 ,  F04C2/18

Abstract: A gear assembly includes a primary shaft, a driving gear, a driven gear, a secondary shaft, and a key wherein the primary shaft and the driving gear define a keyway for housing the key. The primary shaft defines a lower region of the keyway while the driving gear defines an upper region of the keyway. The driving gear may be mounted on the primary shaft such that the upper region and the lower regions of the keyway are aligned with each other in order for the keyway to house the key. The driven gear may be mounted on the secondary shaft such that the driven gear may be in meshing engagement with the driven gear. The aforementioned keyway defines a peninsula in a center portion of the driving gear. The peninsula is configured to abut a key disposed within the keyway.

公开(公告)号：US10584629B2

公开(公告)日：2020-03-10

申请号：US15895205

申请日：2018-02-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark R. Claywell ,  Maqsood Rizwan Ali Khan ,  Jacob C. Hedrick

IPC: F02B29/04 ,  F02M35/10 ,  F02M35/116

Abstract: The present disclosure provides a charge air cooler system having a manifold charge air cooler, a first charge air cooler and a second charge air cooler wherein each charge air cooler are in fluid communication with each other. The manifold charge air cooler is within a plenum and defines a first chamber and a second chamber within the plenum. The manifold charge air cooler is configured to cool of unsteady flow between the first and second chambers. The first charge air cooler may be configured to cool a first ambient air flow and may be in fluid communication with the first chamber. The second charge air cooler may be configured to cool a second ambient air flow wherein the second charge air cooler is in fluid communication with the second chamber.

公开(公告)号：US09995256B2

公开(公告)日：2018-06-12

申请号：US14987270

申请日：2016-01-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark R. Claywell ,  Maqsood Rizwan Ali Khan

IPC: F02B33/00 ,  F02M15/00 ,  F02M35/104 ,  F02B29/04 ,  F02M35/10

CPC classification number: F02M35/1045 ,  F02B29/04 ,  F02B29/0437 ,  F02B33/00 ,  F02M35/10354 ,  Y02T10/146

Abstract: An engine includes a cylinder block defining a bank of cylinders having physically adjacent first and second cylinders. The engine also has a gas compressor configured to pressurize an ambient airflow for delivery to the first cylinder and the second cylinder. The engine additionally has intake valves configured to control delivery of the pressurized airflow as a first airstream to the first cylinder and a second airstream to the second cylinder for combustion therein. A firing interval for the two adjacent cylinders results in the first airstream temporally overlapping the second airstream. A charge-air cooler is configured to cool the pressurized airflow prior to delivery thereof to the first and second cylinders and includes a cold-side plenum for discharging the pressurized airflow toward the first and second cylinders. A partition in the cold-side plenum is configured to separate the first airstream from the second airstream and thereby minimize interference therebetween.

公开(公告)号：US20180045104A1

公开(公告)日：2018-02-15

申请号：US15233275

申请日：2016-08-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Maqsood Rizwan Ali Khan ,  Pulasti Bandara ,  Mark R. Claywell

IPC: F02B37/18

CPC classification number: F02B37/183 ,  F01N2900/1602 ,  Y02T10/144

Abstract: A turbocharger includes a compressor wheel configured to pressurize an airflow for delivery to an internal combustion engine. The turbocharger also includes a turbine wheel configured to be driven by the engine's post-combustion gases and drive the compressor wheel. The turbocharger additionally includes a waste-gate assembly. The waste-gate assembly includes a first waste-gate valve and a second waste-gate valve, wherein each of the first and second waste-gate valves is configured to selectively redirect at least a portion of the post-combustion gases away from the turbine wheel into the exhaust passage. A vehicle having an internal combustion engine operatively connected to such a turbocharger and also employing a controller configured to regulate the first and second waste-gate valves is also disclosed.

公开(公告)号：US11326505B1

公开(公告)日：2022-05-10

申请号：US17090979

申请日：2020-11-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Maqsood Rizwan Ali Khan ,  Mark R. Claywell ,  Paul M. Riherd, II ,  Bryston Hollis

IPC: F02D41/00 ,  F02D19/00 ,  F01P7/04 ,  F01P7/08

Abstract: A system for controlling a fan of a vehicle engine. The system comprises: i) a fan configured to selectively cool the vehicle engine; and ii) an engine control module configured to: a) turn on the fan when the engine temperature exceeds a selected temperature threshold; b) determine when the vehicle engine is operating in an engine braking mode; and c) in response to the engine operating in the engine braking mode, turn on the fan when the engine temperature is below the selected temperature threshold. The engine control module turns the fan off as a means of hardware protection of the fan clutch even during engine braking modes.

公开(公告)号：US10982670B2

公开(公告)日：2021-04-20

申请号：US16253546

申请日：2019-01-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark R. Claywell ,  Sean M. McGowan

IPC: F04C2/18 ,  F04C15/00 ,  F04C11/00

Abstract: A gear pump that is used to pump fluid, such as oil, in a vehicle. The gear pump comprises a gear assembly having a drive shaft including a drive shaft key; a set of drive gears mounted on the drive shaft, with a drive gear of the set of drive gears being keyed with the drive shaft key; a driven shaft including a driven shaft key; a set of driven gears mounted on the driven shaft, with a driven gear of the driven gear set being keyed with the driven shaft key; and a torque drive feature associated with the drive shaft or the driven shaft, wherein the torque drive feature is configured to check keying with the driven shaft key.

公开(公告)号：US10801417B1

公开(公告)日：2020-10-13

申请号：US16510316

申请日：2019-07-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark R. Claywell ,  Maqsood Rizwan Ali Khan ,  Ryan Calkin

IPC: F02D9/06 ,  F02D41/14 ,  F02D41/00

Abstract: A method and system for regulating an exhaust gas flow includes providing an engine and an exhaust system coupled to the engine, the exhaust system including a variable-geometry turbocharger and exhaust tubing including an exhaust pipe bellows and providing a controller and at least one sensor in communication with the controller, the at least one sensor configured to measure an engine speed of the engine. The method includes determining whether a first condition is satisfied and in response to satisfaction of the first condition, determining an exhaust gas temperature at the exhaust pipe bellows and determining a time delay for regulation of the exhaust gas flow to the variable-geometry turbocharger. The method includes controlling the exhaust gas flow to the variable-geometry turbocharger based on the determined time delay.

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

IPC: F01M5/02 ,  F01M5/00 ,  F01M1/08 ,  F01M9/10 ,  F01M11/02

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.