公开(公告)号：US20240342836A1

公开(公告)日：2024-10-17

申请号：US18299223

申请日：2023-04-12

Applicant: GM Global Technology Operations LLC

Inventor： Huaxin Li ,  Yi Liu ,  Sen Jiang Zhou ,  Jack M. Gayney

IPC: B23K31/02 ,  B23K26/242 ,  B23K31/00

CPC classification number: B23K31/02 ,  B23K26/242 ,  B23K31/003 ,  B23K2101/005 ,  B23K2101/008

Abstract: A gear box having a carburized shaft and steel bearing assembly. The bearing includes an inner-race and an outer-race. The shaft includes a distal end surface extending perpendicularly from a shaft faying surface and a shaft annular beveled edge. The shaft faying surface is in intimate contact with the inner-race. The inner-race second annular face is coplanar with the distal end surface. The shaft annular beveled edge cooperates with the inner-race faying surface to define a half-V shaped groove. An annular weld joint is formed in the half-V shaped groove thereby joining the shaft to the inner-race. The outer-race includes a first width (W1) and the inner-race includes a second width (W2). W2 is wider than W1 by greater than 0 millimeters (mm) to about 10 mm.

公开(公告)号：US11971079B2

公开(公告)日：2024-04-30

申请号：US17811631

申请日：2022-07-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sen Jiang Zhou ,  John Miller ,  Craig David Reynolds

IPC: F16F15/14

CPC classification number: F16F15/1414 ,  F16F2222/08 ,  F16F2232/02

Abstract: A dual deflection ring system includes a pair of components that rotate relative to one another about an axis of rotation. One or more deflection rings are disposed between the components. The deflection ring(s) include two sets of pockets configured to provide two levels of compressibility in-series between the components. The two sets of pockets project radially relative to the axis of rotation and are compressible between the components.

公开(公告)号：US12255504B2

公开(公告)日：2025-03-18

申请号：US17819701

申请日：2022-08-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sen Jiang Zhou ,  Alireza Fatemi ,  Jack M Gayney

IPC: H02K11/40 ,  H02K7/00

Abstract: An electric machine grounding system with low impedance includes a rotor that has a shaft assembly and that is configured to rotate about an axis. The shaft assembly has a surface. A housing supports the shaft assembly for rotation of the rotor. A holder extends from the housing. A ground assembly is held between the holder and the shaft assembly and includes a plurality of strands that extend to the surface to ground the shaft assembly to the housing.

公开(公告)号：US20240011540A1

公开(公告)日：2024-01-11

申请号：US17811631

申请日：2022-07-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sen Jiang Zhou ,  John Miller ,  Craig David Reynolds

IPC: F16F15/14

CPC classification number: F16F15/1414 ,  F16F2222/08 ,  F16F2232/02

Abstract: A dual deflection ring system includes a pair of components that rotate relative to one another about an axis of rotation. One or more deflection rings are disposed between the components. The deflection ring(s) include two sets of pockets configured to provide two levels of compressibility in-series between the components. The two sets of pockets project radially relative to the axis of rotation and are compressible between the components.

公开(公告)号：US20240097536A1

公开(公告)日：2024-03-21

申请号：US17933146

申请日：2022-09-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sen Jiang Zhou ,  Jack M Gayney ,  Alireza Fatemi

IPC: H02K11/40 ,  H02K5/173

CPC classification number: H02K11/40 ,  H02K5/1732

Abstract: A rotor grounding system for an electric machine includes a rotor including a shaft assembly configured to rotate about an axis. A housing supports the shaft assembly for rotation of the rotor. A bearing assembly has an outer circumference disposed against the shaft assembly. A discharge bar extends through at least a part of the bearing assembly. The bearing assembly has an inner circumference disposed against the discharge bar. A discharge circuit is defined between the rotor and the housing, where the discharge circuit extends through the bearing assembly and the discharge bar.

公开(公告)号：US20240055959A1

公开(公告)日：2024-02-15

申请号：US17819701

申请日：2022-08-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sen Jiang Zhou ,  Alireza Fatemi ,  Jack M Gayney

IPC: H02K11/40 ,  H02K7/00

CPC classification number: H02K11/40 ,  H02K7/003

Abstract: An electric machine grounding system with low impedance includes a rotor that has a shaft assembly and that is configured to rotate about an axis. The shaft assembly has a surface. A housing supports the shaft assembly for rotation of the rotor. A holder extends from the housing. A ground assembly is held between the holder and the shaft assembly and includes a plurality of strands that extend to the surface to ground the shaft assembly to the housing.