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. 11, 1988
Filed:
Jan. 15, 1987
Daimler-Benz Aktiengesellschaft, Stuttgart, DE;
Abstract
A device for the shifting of a multi-disk clutch for the locking of a transfer differntial for the drive of two vehicle axles of a motor vehicle, wherein the multi-disk clutch is engaged by means of the force of a spring and is released by means of an axial piston that can be acted upon by working pressure. The axial piston acts upon the set of disks via a pressure ring that, with respect to the disk carrier of one half of the clutch, is fixed in the direction of the clutch axis pointing away from a first counterbearing of the set of disks by a second counterbearing. The first counterbearing of the set of disks is coupled with the disk carrier by means of an adjusting arrangement that works toward displacing the first counterbearing by an additional spring force toward the pressure ring along the clutch axis. In a position of a control valve that brings the disk clutch into the engaged position, the working pressure chamber used for the admission of pressure to the axial piston is connected with a pressure-relieved storage tank via a hydraulic throttling arrangement.