公开(公告)号：US11661938B2

公开(公告)日：2023-05-30

申请号：US17446530

申请日：2021-08-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  GHSP, Inc. ,  GKN Sinter Metals LLC

Inventor： Robert Benson Parrish ,  Michael P Fannin ,  Avinash Singh ,  Ryan David Rosinski ,  Alan Clifford Taylor ,  Thomas John Fonville

IPC: F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C2/00 ,  F04C2/10 ,  F04C18/10 ,  F04C27/00 ,  F04C15/00

CPC classification number: F04C2/103 ,  F04C15/0026 ,  F04C18/10 ,  F04C27/006 ,  F04C2230/60 ,  F04C2240/10 ,  F04C2240/20

Abstract: Systems and methods are provided for pumps that deliver optimized torque characteristics and volumetric efficiency. A system includes a housing defining a surface and a rotor defining a face. A face clearance is defined between the face and the surface. The face clearance is variable in magnitude and determinative of target performance characteristics of the pump system. The housing is made of a material selected to have a thermal expansion characteristic and the rotor is made of a second material selected to have another thermal expansion characteristic. The thermal expansion characteristics deliver the target performance characteristics of the pump system.

公开(公告)号：US20170248222A1

公开(公告)日：2017-08-31

申请号：US15055131

申请日：2016-02-26

Applicant: GM Global Technology Operations LLC

Inventor： Yujiro Suwa ,  Robert Benson Parrish ,  James D. Hendrickson

IPC: F16H57/04

CPC classification number: F16H57/0435 ,  B60K1/00 ,  B60K2001/001 ,  B60Y2306/03 ,  F16H57/0426 ,  F16H57/043 ,  F16H57/0434 ,  F16H57/0436 ,  F16H57/0443 ,  F16H57/0476

Abstract: A motor vehicle vacuum driven hydraulic balance system includes a housing. A shaft rotatably supported in the housing has a longitudinal bore to deliver oil flow to a plurality of ports created in the shaft. A vacuum flow passage communicates with both the longitudinal bore and an oil sump. A first delivery passage is created in a portion of the housing, the first delivery passage in direct communication with the longitudinal bore. An electrical oil pump pumps oil from the oil sump to the longitudinal bore through the first delivery passage. Axial rotation of the shaft creates a partial vacuum in the longitudinal bore acting to vacuum drag oil from the oil sump through the vacuum flow passage to the longitudinal bore in addition to a volume of the oil delivered to the longitudinal bore by the electrical oil pump.

公开(公告)号：US20230113348A1

公开(公告)日：2023-04-13

申请号：US17450563

申请日：2021-10-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert Benson Parrish

IPC: F04C29/00 ,  F04C2/10

Abstract: Systems and methods are provided for pump systems that deliver optimized performance and efficiency. A method includes selecting a pump for the pump system. A maximum operating speed of the pump is determined, and its torque requirements are evaluated. A motor is selected to meet the torque requirements and a speed target is set for the motor. A speed reducer is sized for operation of the motor at the speed target and operation of the pump below the maximum speed, and the motor is coupled with the pump through the speed reducer.

公开(公告)号：US20230062955A1

公开(公告)日：2023-03-02

申请号：US17446530

申请日：2021-08-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  GHSP, Inc. ,  GKN Sinter Metals LLC

Inventor： Robert Benson Parrish ,  Michael P Fannin ,  Avinash Singh ,  Ryan David Rosinski ,  Alan Clifford Taylor ,  Thomas John Fonville

IPC: F04C2/10 ,  F04C18/10

Abstract: Systems and methods are provided for pumps that deliver optimized torque characteristics and volumetric efficiency. A system includes a housing defining a surface and a rotor defining a face. A face clearance is defined between the face and the surface. The face clearance is variable in magnitude and determinative of target performance characteristics of the pump system. The housing is made of a material selected to have a thermal expansion characteristic and the rotor is made of a second material selected to have another thermal expansion characteristic. The thermal expansion characteristics deliver the target performance characteristics of the pump system.

公开(公告)号：US09988955B1

公开(公告)日：2018-06-05

申请号：US15361734

申请日：2016-11-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yujiro Suwa ,  Robert Benson Parrish ,  Arthur L Mcgrew

IPC: F16N11/00 ,  F01M11/00 ,  H02P1/16

CPC classification number: F01M11/0004 ,  B60L2240/425 ,  F01M2011/0045 ,  F01M2011/0083 ,  H02P1/16

Abstract: A drive unit, method, and control system are provided that warm drive unit fluid in a drive unit having a main pump, a scavenge pump, and an electric motor for powering an axle of a vehicle. The control system and method are configured to fill a main sump of the drive unit with drive unit fluid to a predetermined fill level. In a warm-up mode, the method and control system operate the electric motor to heat the drive unit fluid within the main sump while the vehicle is stationary and the electric motor is at least partially disposed in the drive unit fluid within the main sump. Further in the warm-up mode, the method and control system are configured to operate the scavenge pump to pump the drive unit fluid from the main sump into an auxiliary reservoir after the drive unit fluid has been heated by the electric motor.

公开(公告)号：US20180149051A1

公开(公告)日：2018-05-31

申请号：US15361734

申请日：2016-11-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yujiro Suwa ,  Robert Benson Parrish ,  Arthur L. Mcgrew, JR.

IPC: F01M11/00 ,  H02P1/16

CPC classification number: F01M11/0004 ,  B60L2240/425 ,  F01M2011/0045 ,  F01M2011/0083 ,  H02P1/16

Abstract: A drive unit, method, and control system are provided that warm drive unit fluid in a drive unit having a main pump, a scavenge pump, and an electric motor for powering an axle of a vehicle. The control system and method are configured to fill a main sump of the drive unit with drive unit fluid to a predetermined fill level. In a warm-up mode, the method and control system operate the electric motor to heat the drive unit fluid within the main sump while the vehicle is stationary and the electric motor is at least partially disposed in the drive unit fluid within the main sump. Further in the warm-up mode, the method and control system are configured to operate the scavenge pump to pump the drive unit fluid from the main sump into an auxiliary reservoir after the drive unit fluid has been heated by the electric motor.