公开(公告)号：US10141795B2

公开(公告)日：2018-11-27

申请号：US15064211

申请日：2016-03-08

Applicant: GM Global Technology Operations LLC

Inventor： Margarita P. Thompson ,  Frederick E. Pinkerton ,  Michael P. Balogh ,  Gayatri Vyas Dadheech ,  Xiaoqing Zeng

IPC: H02K1/02 ,  H01F1/057 ,  H01F1/06

Abstract: An electric motor is provided for use in an electromechanical transmission that utilizes automatic transmission fluid. The electric motor includes a stator and a rotor. The rotor includes a plurality of permanent magnets can include magnetic particles coated with hydrogen impermeable material. According to an alternative embodiment, the entire permanent magnet or the rotor itself can be coated with hydrogen impermeable material. According to a further alternative embodiment, the permanent magnet particles can be secured by a binder that includes a hydrogen storage compound that prevents hydrogen from affecting magnetic properties of the permanent magnet.

公开(公告)号：US20250052280A1

公开(公告)日：2025-02-13

申请号：US18446937

申请日：2023-08-09

Applicant: GM Global Technology Operations LLC

Inventor： Peng Shen ,  Wenying Yang ,  Jack M. Gayney ,  Xiaoqing Zeng

IPC: F16C33/58 ,  F16C33/76

Abstract: A bearing outer face construction system includes a bearing having a bearing outer race. The bearing outer race includes an outer race surface. At least one circumferential groove is recessed into the bearing outer race. An expanding member is received in the at least one circumferential groove. A housing receives the bearing having a gap between a housing inner face and the bearing outer race. The expanding member expands to radially extend across the gap into direct contact with the housing inner face to mitigate against motion between the bearing and the housing inner face.