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. 30, 2005
Filed:
Aug. 25, 2003
Jochen Dräger, Freiburg, DE;
Gerold Schultheiss, Pforzheim, DE;
Rudolf Stoklossa, Mühlacker, DE;
BEHR GmbH & Co., Stuggart, DE;
Abstract
A fluid friction clutch, in particular for a motor vehicle fan, having a rotatably mounted shaft wherein a reservoir for at least largely holding the fluid is provided radially inside an outer periphery of the drive body, and wherein at least one first flow path and at least one second flow path are provided, which are used to connect the reservoir to the coupling area, and wherein the drive body, at the outer periphery, has at least one flow resistance element which is arranged between the at least first flow path and the at least second flow path, and wherein furthermore there is a controllable device for closing and opening at least one of these flow paths.