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:
Dec. 30, 1997
Filed:
Nov. 28, 1995
Applicant:
Inventor:
Hans Martin, Stuttgart, DE;
Assignee:
Behr GmbH & Co., Stuttgart, DE;
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; F16D / ;
U.S. Cl.
CPC ...
192 58681 ; 192 58684 ; 192 588 ; 192 / ;
Abstract
In a fluid friction clutch, the circulation of shearing fluid is controlled by a control of the return flow of the shearing fluid from a clutch working chamber into a clutch storage chamber. The return flow is controlled by a control piston which is movable axially of the clutch to selectively block and open a radially extending return flow duct. In certain embodiments the control piston also controls an inflow bore.