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:
Oct. 16, 2018
Filed:
Jun. 03, 2014
Applicant:
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Inventors:
Peter Schiele, Kressbronn, DE;
Frank Gethöfer, Neukirch, DE;
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/02 (2006.01); F16H 61/06 (2006.01); F16K 15/18 (2006.01); F16K 17/04 (2006.01); F16K 31/122 (2006.01); F04C 14/26 (2006.01); F16D 48/02 (2006.01);
U.S. Cl.
CPC ...
F16H 61/0276 (2013.01); F04C 14/26 (2013.01); F04C 14/265 (2013.01); F16H 61/0283 (2013.01); F16H 61/068 (2013.01); F16K 15/18 (2013.01); F16K 15/183 (2013.01); F16K 17/048 (2013.01); F16K 31/1221 (2013.01); F16D 2048/0221 (2013.01); F16H 2061/0279 (2013.01); F16H 2061/062 (2013.01);
Abstract
A hydraulic control device for an automatic transmission including a valve device. The valve device comprising a switching valve, featuring a switching component and a check valve. The switching valve is formed in a housing and is hydraulically connected to a first pressure adjusting device and a second pressure adjusting device along with a shift element for transferring a certain torque. The switching valve is formed as a directional seat valve.