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. 27, 2021
Filed:
Mar. 24, 2020
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Christoph Bauer, Windorf, DE;
Stefan Grabitzky, Meckenbeuren, DE;
Manfred Klose, Tettnang, DE;
Walter Fischer, Friedrichshafen, DE;
Andreas Bauer, Windorf, DE;
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Abstract
A planetary gearset () has a sun gear () connected rotationally fixedly to an input shaft (), a carrier () that carries planetary gears () and is connected rotationally fixedly to an output shaft (), and a ring gear () fixedly connected to a housing () that encloses the planetary gearset (). To reduce the noise emission from the planetary gearset with as little structural complexity as possible without reducing its efficiency due to pressure rings that are guided and slide against the planetary gears and the carrier, the sun gear (), the planetary gears () and the ring gear () are provided with helical teeth and the input shaft () is at least indirectly supported on the housing (), in both axial directions, by way of a single roller bearing ().