公开(公告)号：US20240159306A1

公开(公告)日：2024-05-16

申请号：US18054598

申请日：2022-11-11

Applicant: GM Global Technology Operations LLC

Inventor： Cheonjae Bahk ,  Bo Li ,  Dhanasekar Baladhandapani ,  Pavan Kumar Patruni ,  Hung-yih Isaac Du

IPC: F16H55/08 ,  F16H55/17

CPC classification number: F16H55/0886 ,  F16H55/17

Abstract: A multi-slot gear for a powertrain of a vehicle includes an inner ring, an outer ring having gear teeth disposed on a periphery of the outer ring, a web disposed between the inner ring and the outer ring, and a plurality of slots disposed within the web. Each of the plurality of slots includes a slot angle and each of the plurality of slots is separated from one another by a space angle. The ratio of the slot angle to the space angle is greater than two.

公开(公告)号：US20200185982A1

公开(公告)日：2020-06-11

申请号：US16214795

申请日：2018-12-10

Applicant: GM Global Technology Operations LLC

Inventor： Pavan Kumar Patruni ,  Song He ,  Edward L. Kaiser ,  Mithun Sunny

IPC: H02K1/16 ,  H02K1/18

Abstract: A stator for an electromagnetic machine includes a first lamination stack defining a first cavity therein and having a central longitudinal axis. The first lamination stack includes a first plurality of mounting ears disposed opposite the first cavity and each spaced apart from one another about the central longitudinal axis. The stator further includes a second lamination stack abutting the first lamination stack and defining a second cavity therein aligned with the first cavity along the central longitudinal axis. The second lamination stack includes a second plurality of mounting ears disposed opposite the second cavity and each spaced apart from the first plurality of mounting ears and from one another about the central longitudinal axis. An electromagnetic machine including the stator and a device including the electromagnetic machine are also described.

公开(公告)号：US12249309B2

公开(公告)日：2025-03-11

申请号：US17873278

申请日：2022-07-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Song He ,  Arianna T. Morales ,  Anil K. Sachdev ,  Pavan Kumar Patruni ,  Hung-yih Isaac Du

IPC: G10K11/162 ,  B60R13/08

Abstract: A damping panel includes a first metal and a second metal. The first metal has a first surface and a second surface opposite the first surface. The second metal portion has a third surface and a fourth surface opposite the third surface. A fixed region is where the second surface of the first metal is fixed to the third surface of the second metal. A non-fixed region is where the second surface is not fixed to the third surface. A cavity is disposed between the second surface and the third surface at the non-fixed region. A damping material is disposed on at least one of: at least a portion of the cavity on the second surface, at least a portion of the cavity on the third surface, at least a portion of the first surface, and at least a portion of the fourth surface.

公开(公告)号：US20230012162A1

公开(公告)日：2023-01-12

申请号：US17367858

申请日：2021-07-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sen J. Zhou ,  Pavan Kumar Patruni ,  Venu G. Ganti ,  Craig D. Reynolds ,  Dhanasekar Baladhandapani ,  Hung-Yih I. Du

IPC: F16F15/12 ,  F16H57/028

Abstract: A noise vibration harshness reduction assembly includes a housing, a component, and an axial ring. The component is supported via the housing and movable relative to the housing. The axial ring is disposed axially along the component. The axial ring is configured to attenuate axial sound inducing vibrations in response to operation of the component.

公开(公告)号：US11873878B2

公开(公告)日：2024-01-16

申请号：US17367858

申请日：2021-07-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sen J. Zhou ,  Pavan Kumar Patruni ,  Venu G. Ganti ,  Craig D. Reynolds ,  Dhanasekar Baladhandapani ,  Hung-Yih I. Du

IPC: F16F15/12 ,  F16H57/028

CPC classification number: F16F15/1201 ,  F16H57/028 ,  F16F2232/02 ,  F16F2236/04

Abstract: A noise vibration harshness reduction assembly includes a housing, a component, and an axial ring. The component is supported via the housing and movable relative to the housing. The axial ring is disposed axially along the component. The axial ring is configured to attenuate axial sound inducing vibrations in response to operation of the component.

公开(公告)号：US10680472B1

公开(公告)日：2020-06-09

申请号：US16214795

申请日：2018-12-10

Applicant: GM Global Technology Operations LLC

Inventor： Pavan Kumar Patruni ,  Song He ,  Edward L. Kaiser ,  Mithun Sunny

IPC: H02K1/06 ,  H02K1/16 ,  H02K1/18

Abstract: A stator for an electromagnetic machine includes a first lamination stack defining a first cavity therein and having a central longitudinal axis. The first lamination stack includes a first plurality of mounting ears disposed opposite the first cavity and each spaced apart from one another about the central longitudinal axis. The stator further includes a second lamination stack abutting the first lamination stack and defining a second cavity therein aligned with the first cavity along the central longitudinal axis. The second lamination stack includes a second plurality of mounting ears disposed opposite the second cavity and each spaced apart from the first plurality of mounting ears and from one another about the central longitudinal axis. An electromagnetic machine including the stator and a device including the electromagnetic machine are also described.