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:
Oct. 14, 2014
Filed:
Feb. 26, 2010
Josef Haupt, Tettnang, DE;
Martin Brehmer, Tettnang, DE;
Gabor Diosi, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A transmission with nine forward and one reverse gear comprises planetary gearsets, shafts and shift elements. A sun gear of a first gearset (P) is connectable to a housing via a first brake () and couples the sun gear of the second gearset (P). A carrier of the first gearset (P) couples the ring gear of the fourth gearset (P). A ring gear of first gearset (P) is connectable to the housing by a second brake (). The carrier of the second gearset (P) couples the input which is connectable by clutch () to the fifth shaft (). The fifth shaft () respectively couples the sun and ring gears of the fourth and third gearsets (P, P) and is connectable to a seventh shaft () by clutch (). The seventh shaft () respectively couples the sun and ring gears of the third and the second gearsets (P, P). Output shaft couples the carrier of the fourth gearset (P) and, via clutch (), the eight shaft () which is connected to the carrier of the third gearset (P), and clutch () couples the eight shaft () to the input.