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：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.