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.

Date of Patent:
Feb. 13, 2018

Filed:

Aug. 02, 2016
Applicant:

Fte Automotive Gmbh, Ebern, DE;

Inventor:

Jürgen Ryba, Reckendorf, DE;

Assignee:

FTE Automotive GmbH, Ebern, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 15/26 (2006.01); F16D 48/02 (2006.01); F15B 7/08 (2006.01); F15B 15/14 (2006.01); F16D 25/12 (2006.01); F16D 25/08 (2006.01); F16D 13/58 (2006.01);
U.S. Cl.
CPC ...
F15B 15/261 (2013.01); F15B 7/08 (2013.01); F15B 15/1471 (2013.01); F16D 25/088 (2013.01); F16D 25/12 (2013.01); F16D 48/02 (2013.01); F16D 2013/581 (2013.01); F16D 2025/081 (2013.01); F16D 2048/0212 (2013.01);
Abstract

A hydraulic cylinder for a hydraulic clutch actuating system for motor vehicles has a piston subassembly with a piston and piston rod, a cylinder housing in which a pressure chamber is variably bounded at one side by the piston and fixedly bounded at the other side by a base of the cylinder housing. A spring element is arranged at the side of the piston opposite from the pressure chamber and is supported at one end on a spring plate on the housing side and operatively connected at the other end with the piston rod so as to bias the piston subassembly in a direction away from the base. A fixing section fixes the piston subassembly in a predetermined stroke setting with respect to the cylinder housing prior to first actuation of the hydraulic cylinder and is constructed to release the piston subassembly relative to the cylinder housing upon first actuation.


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