Actuating device for the actuation, in particular pneumatic actuation, of a friction clutch

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6471025
APP PUB NO 20010002642A1
SERIAL NO

09732527

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An actuating device for a friction clutch arranged in the drive train of a motor vehicle. The actuating device has a positioning servo arrangement with a pressure-medium power cylinder arrangement which acts on a disengagement bearing arrangement. There is provision, for assigning to a pressure-medium subsystem, made up of the pressure-medium power cylinder arrangement and a control valve of the positioning servo arrangement, a pressure compensating orifice which, at least when the positioning servo arrangement is in a holding state, permits a defined pressure-medium pressure compensating flow, in order to influence at least one positioning behavior of the positioning servo arrangement.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ZF FRIEDRICHSHAFEN AGFRIEDRICHSHAFEN1672

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Konrad, Andreas Untertheres, DE 9 36

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Mannesmann Sachs AG (1)
* 6196369 Actuating device for the actuation, in particular pneumatic actuation of a friction clutch 3 1999
 
ROBERT BOSCH GMBH (1)
* 4796739 Clutch actuation device 15 1987
 
ZF FRIEDRICHSHAFEN AG (3)
* 6116399 Friction clutch for a motor vehicle and an operation device for the operation, especially pneumatic operation, of a friction clutch 18 1997
* 6029789 Actuating device for actuation, especially pneumatic actuation, of a friction clutch 6 1998
* 5950788 Operating device for operating a friction clutch 6 1998
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
BLUE LEAF I.P., INC. (1)
* 6516932 Electro-hydraulic clutch hysteresis compensation 0 2001
* Cited By Examiner