Patent · US Active

Hydraulic coupling with disconnect pump clutch

US7878933B2 · kind B2 · utility

4Cited by

8References

29Claims

0Family size

Assignee

MAGNA POWERTRAIN USA, INC. · US

Inventors

Fred C. Porter · Beverly Hills, US
Todd Ekonen · Howell, US
Thomas C. Bowen · Rochester Hills, US

Key dates

Filing date	Jun 25, 2009
Grant date	Feb 1, 2011
Priority date	—
Expiry date	Jun 25, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D37/008
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A power transfer assembly for use in a motor vehicle and having a hydraulic coupling operable to transfer drive torque to a driveline in response to slip. The hydraulic coupling includes a transfer clutch, a clutch operator for engaging the transfer clutch, a fluid actuation system including a fluid pump for controlling movement of the clutch operator, and a magnetorheological pump clutch capable of selectively shifting the fluid pump between operative and inoperative states.

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