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:
Mar. 26, 2013
Filed:
Aug. 19, 2010
Gerhard Gumpoltsberger, Friedrichshafen, DE;
Christian Sibla, Friedrichshafen, DE;
Stefan Beck, Eriskirch, DE;
Josef Haupt, Tettnang, DE;
Gert Bauknecht, Friedrichshafen, DE;
Peter Ziemer, Tettnang, DE;
Gerhard Gumpoltsberger, Friedrichshafen, DE;
Christian Sibla, Friedrichshafen, DE;
Stefan Beck, Eriskirch, DE;
Josef Haupt, Tettnang, DE;
Gert Bauknecht, Friedrichshafen, DE;
Peter Ziemer, Tettnang, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A multi-stage transmission comprising planetary gearsets (P, P, P, P), shafts and shift elements. The sun gear of gearset (P) couples drive shaft (). The carrier of gearset (P) couples shaft () which can couple housing (G) via brake (), shaft () via clutch (), which couples the carrier of gearset (P), and shaft (), via clutch (). Shaft () couples the ring gear of gearset (P) and the sun gears of gearsets (P, P). Shaft () couples the ring gear of gearset (P) and the carrier of gearset (P). The sun gear of set (P) couples shaft (), which can couple housing (G) via brake (). The ring gear of gearset (P) couples shaft (), which can couple housing (G) via brake () and output shaft () operatively couples the ring gear of gearset (P), is connected to the carrier of gearset (P).