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. 29, 2013
Filed:
Apr. 13, 2010
Wolfgang Rieger, Friedrichshafen, DE;
Matthias Reisch, Ravensburg, DE;
Juergen Wafzig, Eriskirich, DE;
Gerhard Gumpoltsberger, Friedrichshafen, DE;
Wolfgang Rieger, Friedrichshafen, DE;
Matthias Reisch, Ravensburg, DE;
Juergen Wafzig, Eriskirich, DE;
Gerhard Gumpoltsberger, Friedrichshafen, DE;
ZF Friedrichshafen, Friedrichshafen, DE;
Abstract
A double clutch transmission with two clutches having input sides connected to a drive shaft and the output sides connected to one of two transmission input shafts which are coaxially arranged, at least two countershafts on which toothed idler gearwheels are supported, toothed fixed gearwheels are arranged in a rotationally fixed manner on both of the transmission input shafts and mesh with at least one of the idler gearwheels. A plurality of coupling devices, each connecting one idler gearwheels to a countershaft in a rotationally fixed manner, and one power take-off gear provided on each of the two countershafts, each of which gearwheels is coupled with gearing of an output shaft, such that a plurality of power shift forward gears and at least one reverse gear can be shifted.