The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2009
Filed:
May. 15, 2006
Leigh Fraser, Bilton Rugby, GB;
Neil Mcnab, Wellesbourne, GB;
Paul Vincent Rouse, Warwick, GB;
Peter Riemer, Learnington Spa, GB;
James Antony Lethbridge, Warwickshire, GB;
Michael Cooper, Learnington Spa, GB;
David Anthony Harries, Sibford Gower Banbury, GB;
Melvin Dyke, Wellesbourne, GB;
Leigh Fraser, Bilton Rugby, GB;
Neil McNab, Wellesbourne, GB;
Paul Vincent Rouse, Warwick, GB;
Peter Riemer, Learnington Spa, GB;
James Antony Lethbridge, Warwickshire, GB;
Michael Cooper, Learnington Spa, GB;
David Anthony Harries, Sibford Gower Banbury, GB;
Melvin Dyke, Wellesbourne, GB;
LuK Lamellen und Kupplungsbau Beteiligungs KG, Buehl, DE;
Abstract
A hydraulic clutch actuation system having a hydraulic clutch control device which includes at least one clutch master cylinder that communicates via a pressure-medium line with a clutch slave cylinder used for actuating a clutch device, the pressure prevailing in the pressure-medium line being relievable via at least one emergency release valve device to permit disengagement of the clutch device in an emergency situation. The hydraulic clutch actuation system is distinguished in that the emergency release valve device has a seal-carrier device for a sealing element which is movable in response to an electromagnet out of an open position, in which a pressure-medium inlet is open, into a closed position in which the sealing element seals the pressure-medium inlet.