Patent · US Active

Gear pump for actuating a clutch

US7914269B2 · kind B2 · utility

1Cited by

7References

12Claims

0Family size

Assignee

LuK Lamellen und Kupplungsbau Beteiligungs KG · DE

Inventors

Marco Grethel · Frebershausen, DE
Oswald Friedmann · Lichtenau, DE
Christoph Vetter · Hopewell, US
Eric Muller · Contz-les-Bains, FR

Key dates

Filing date	Jun 23, 2007
Grant date	Mar 29, 2011
Priority date	—
Expiry date	May 13, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2240/50
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A positive-displacement pump having an eccentrically positioned internal ring gear and pinion within a pump housing. Pressurized operating fluid is provided by the pump to actuate an actuation piston of a clutch unit, such as a double clutch unit. The clutch unit is drivingly coupled with the pump for movement between engaged and disengaged positions. At least one throughbore is provided in the pump housing within which throughbore the clutch actuation piston is guided.

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