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:
Dec. 13, 2011
Filed:
Jun. 02, 2009
Rayk Hoffmann, Friedrichshafen, DE;
Rayk Hoffmann, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
An arrangement for reducing rattling in a transmission of counter shaft design having first countershafts () and a load-equalizing main shaft () in which each transmission ratio step comprises a loose wheel (), arranged on the main shaft (), and a respective fixed wheel () arranged on each of the first and second countershafts () which are in active engagement with one another. Activation of the transmission ratios occurs by actuating a shift element () such that the respective loose wheel can be connected, in a rotationally fixed manner, to the main shaft (). In this arrangement the oil pump () of the transmission is mounted on the main shaft ().