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:
Nov. 20, 2001
Filed:
Jan. 19, 2000
Dieter Zimprich, Eppelheim, DE;
Borg-Warner Automotive GmbH, Heidelberg, DE;
Abstract
A multi-disk friction device includes a drive member having a plurality of drive disks supported for rotation with the drive member and a driven member having a plurality of driven disks supported for rotation with the driven member. The drive and driven disks are interleaved relative to each other such that each drive disk is adjacent to a driven disk and moveable toward and away from one another for providing selective frictional engagement therebetween and to transmit torque between the drive and driven members. Each of the drive and driven disks include a working face which is disposed for frictional engagement with the working face of an adjacent one of the disks. At least one of the working faces on an adjacent one of the disks includes a plurality of micro-pockets formed thereon. The micro-pockets act to store lubricating agents on the working faces.