Patent · US Active

Torque transmitting device

US8231492B2 · kind B2 · utility

4Cited by

4References

8Claims

0Family size

Assignees

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US
Shanghai Jiao Tong University · CN

Inventors

Li Chen · Fryeburg, US
Chengliang Yin · Shanghai, CN
Jie Shu · 流花街道, CN
Jian Yao · Shanghai, CN
Chunhao J. Lee · Troy, US
Chi-Kuan Kao · Troy, US
Farzad Samie · Franklin, US
Yu Dong · Shanghai, CN

Key dates

Filing date	Apr 16, 2009
Grant date	Jul 31, 2012
Priority date	—
Expiry date	Jan 30, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D2023/123
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A torque transmitting device includes a plurality of clutch plates, a ramp member that is selectively rotatable about an axis and that defines a ramp surface, a worm gear that is operatively connected to the ramp member for rotation therewith about the axis, and a roller element contacting the ramp surface. The ramp surface is configured such that, when the ramp member is rotated about the axis, the roller element exerts a reaction force on the ramp surface that urges the ramp member to move in a first axial direction and thereby transmit the reaction force to the clutch plates.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.