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:
May. 21, 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 transmission comprising four planetary gear sets, eight shafts and six shift elements. The sun gear of gear set (P) is fixed via brake (), the carrier of gear set (P) is fixed via brake () and the drive via clutch (), and shaft () via clutch (). Sixth shaft () is connected to the ring gear of gear set (P) and the sun gear of gear set (P), the drive is connected to the sun gear of gear set (P) and is connectable to the carrier of gear set (P). Seventh shaft () is connected to the ring gear of gear set (P) and the carrier of gear set (P), and is connectable to the sun gear of gear set (P). The ring gear of the fourth gear set (P) is connectable to the housing via brake (). The output is connected to the ring gear of third gear set (P) and the carrier of fourth gear set (P).