Patent · US Active

Actuation device for a clutch

US8376113B2 · kind B2 · utility

1Cited by

6References

12Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Georg Kruse · Gifhorn, DE
Roland Meyer · Jeffery Road, DE
Markus Novotny · Friedrichsaue, DE

Key dates

Filing date	Aug 14, 2008
Grant date	Feb 19, 2013
Priority date	—
Expiry date	Nov 23, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D2500/501
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An actuation device and a method for actuating a clutch, in particular for a hybrid drive, include a master cylinder having an interior separated by a master piston into master and slave oil chambers. The slave oil chamber is connected, via a valve in a first valve position, to a tank line leading to an oil reservoir and in a second valve position, to a pressure line of the oil reservoir. The master oil chamber is connected via a working line to an oil chamber of a slave cylinder and to a compensating tank via a compensating line as a function of the position of the master piston. The compensating tank has a compensating volume which has, at its highest point, an overflow which is connected to the tank line and in its first position the valve connects the slave oil chamber to the compensating tank via a return line.

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