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:
Sep. 17, 2013
Filed:
Oct. 22, 2008
Peter Fenn, Waigolshausen, DE;
Andreas Ratte, Dittelbrunn, DE;
Klaus Reuter, Oberthulba, DE;
Ralf Steinfeldt, Schwebenried, DE;
Matthias Reisch, Ravensburg, DE;
Juergen Wafzig, Eriskirch, DE;
Peter Fenn, Waigolshausen, DE;
Andreas Ratte, Dittelbrunn, DE;
Klaus Reuter, Oberthulba, DE;
Ralf Steinfeldt, Schwebenried, DE;
Matthias Reisch, Ravensburg, DE;
Juergen Wafzig, Eriskirch, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
An actuating device for applying actuating forces in a friction clutch device for engaging and disengaging a friction clutch assembly of the friction clutch device. The torque transmission device comprises the actuating device for transmission of torque between a drive unit and a transmission which also includes the friction clutch device. A method for installing a torque transmission device of this type. Various aspects relate to setting of a pre-load on a bearing of the actuating device, setting an over-dead-point configuration for a compensation spring associated with at least one rotary member of the actuating device, setting a rotation movement range for the rotary member and/or an axial movement range for an actuating element which can be displaced axially by rotation movement imparted to the rotary member, and producing either a normally engaged or disengaged characteristic in a normally-engaged or normally-disengaged friction clutch assembly with the compensation spring.