公开(公告)号：US20200208548A1

公开(公告)日：2020-07-02

申请号：US16237883

申请日：2019-01-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dale E. Murrish ,  Luke Luehr ,  Scott A. Hucker ,  Varoon Shankar ,  Jeremy T. Demarest

IPC: F01M1/06 ,  F01M1/08 ,  F01M1/16

Abstract: A crankshaft assembly for a vehicle, a method of operating a crankshaft assembly, and a method of manufacturing a crankshaft assembly. The crankshaft assembly includes a crankshaft, a first pin bearing journal and a main journal, an oil passage having a main passage wall, the oil passage extending from the first pin bearing journal to or through the main bearing journal, a crankpin exit hole located in the main passage wall, and a blocking element positioned in the oil passage, wherein the blocking element is located in a radially outward position with respect to the crankpin exit hole.

公开(公告)号：US20200072216A1

公开(公告)日：2020-03-05

申请号：US16119578

申请日：2018-08-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Varoon Shankar ,  Chung Y. Wei ,  Bryan K. Pryor

IPC: F04C14/22 ,  F04C2/344

Abstract: Variable displacement pumps and methods of pumping a fluid are provided. An example pump may include a housing having an inlet and an outlet, a rotor fixed for rotation with a shaft, the shaft rotatably mounted within the housing, and a plurality of radially extending vanes slidably disposed in the rotor. The pump may further include a pivotable ring member defining at least in part a control chamber about the rotor, wherein the ring member is pivotable within the housing to vary an eccentricity of the ring member with respect to the rotor. The ring member is configured to shift a pivot position of the ring member from a first pivot position to a second pivot position displaced from the first pivot position.

公开(公告)号：US11143066B2

公开(公告)日：2021-10-12

申请号：US16237883

申请日：2019-01-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dale E. Murrish ,  Luke Luehr ,  Scott A. Hucker ,  Varoon Shankar ,  Jeremy T. Demarest

IPC: F01M1/06 ,  F01M11/02 ,  F01M1/16 ,  F01M1/08

Abstract: A crankshaft assembly for a vehicle, a method of operating a crankshaft assembly, and a method of manufacturing a crankshaft assembly. The crankshaft assembly includes a crankshaft, a first pin bearing journal and a main journal, an oil passage having a main passage wall, the oil passage extending from the first pin bearing journal to or through the main bearing journal, a crankpin exit hole located in the main passage wall, and a blocking element positioned in the oil passage, wherein the blocking element is located in a radially outward position with respect to the crankpin exit hole.