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. 15, 2013
Filed:
May. 06, 2009
Toros Guelluek, Lichtenau, DE;
Thorsten Krause, Buehl, DE;
Bruno Mueller, Sasbach, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
The invention relates to a clutch assembly, particularly for use in force transmission devices for motor vehicle, comprising a housing arrangement that is or can be filled with a fluid, and a frictional arrangement that has a first frictional surface arrangement and a second frictional surface arrangement which can be effectively interconnected by means of an actuator. Each frictional surface arrangement is provided with at least one frictional surface-supporting element. A fluid flow can be generated in the housing arrangement for cooling the frictional surface arrangements. The invention is characterized in that means are provided for creating at least one circuit which repeatedly flows through at least one frictional surface-supporting element of the frictional arrangement and conducts the fluid flow when the rotational speed differs between the effectively interconnectable frictional surface-supporting elements of the different frictional surface arrangements. Said means encompass cooling ducts which define the course of a single circuit in the direction of flow. The extension of the cooling ducts from an radially inward area to a radially outward area, or vice versa, in or on a frictional surface-supporting element in the desired direction of flow is characterized by a circumferential directional component in the direction of rotation of the individual frictional surface arrangement.