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:
Mar. 28, 2006
Filed:
Mar. 15, 2004
Applicant:
Fritz Leber, Friedrichshafen, DE;
Inventor:
Fritz Leber, Friedrichshafen, DE;
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 45/00 (2006.01); F16H 61/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
To control one clutch () in a hydrodynamic torque converter, the pressure acting upon one first piston area () is supplied to a control unit which, depending on the pressure, adjusts the pressure acting upon a second piston area (). It is possible to exactly adjust the piston force acting upon a clutch () even in the presence of changing pressure ratios within the hydrodynamic torque converter.