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:
Jan. 18, 2000
Filed:
May. 13, 1998
Applicant:
Inventors:
Assignee:
Mannesmann Sachs AG, Schweinfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B06K / ;
U.S. Cl.
CPC ...
192-358 ; 192-361 ; 192 / ; 1921 / ;
Abstract
An actuating drive for actuating a friction clutch and an automated shift transmission, having valve units which enable a switching operation, on the one hand, of the friction clutch, and on the other hand, of the shift transmission. It is possible for a change to the switching state at the friction clutch to be triggered by a gear selection device. The valve unit that is assigned to the friction clutch is assigned a switching device which has a link between the actuating cylinder for the slot selection and the hydraulic circuit that is connected to the actuating cylinder for actuating the friction clutch and enables the driving, as required, of one or the other actuating cylinder.