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:
Jul. 03, 2012
Filed:
Aug. 11, 2009
Gerhard Gumpoltsberger, Friedrichshafen, DE;
Martin Brehmer, Tettnang, DE;
Peter Ziemer, Tettnang, DE;
Peter Tiesler, Meckensbeuren, DE;
Gabor Diosi, Friedrichshafen, DE;
Josef Haupt, Tettnang, DE;
Gerhard Gumpoltsberger, Friedrichshafen, DE;
Martin Brehmer, Tettnang, DE;
Peter Ziemer, Tettnang, DE;
Peter Tiesler, Meckensbeuren, DE;
Gabor Diosi, Friedrichshafen, DE;
Josef Haupt, Tettnang, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A multi-step transmission including four gear sets, shafts, and shifting elements. The sun gear of gearset (P) couples shaft () which communicates, via brake (), with the housing. The carrier of gearset (P) couples the output shaft, which couples the ring gear of gearset (P). The ring gear of gearset (P) couples shaft (), which couples the carrier of gearset (P) and, via clutch (), communicates with the drive shaft, which communicates, via clutch (), with the ring gear of gearset (P) coupled to shaft (), and, via clutch (), communicates with shaft (). Shaft () couples the sun gear of gearset (P), and, via brake (), communicates with the housing. The carrier of gearset (P) couples the shaft (), the ring gear of gearset (P) and the sun gear of gearset (P). The carrier of gearset (P) couples the shaft (), which, via brake (), communicates with the housing.