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. 10, 2012
Filed:
May. 18, 2009
Kun Tao, Irvine, CA (US);
Susan M. Stroope, Oxford, MI (US);
Kun Tao, Irvine, CA (US);
Susan M. Stroope, Oxford, MI (US);
Borgwarner Inc., Auburn Hills, MI (US);
Abstract
In the present invention, an improved planetary gearset which reduces the amount of vibration transferred from the planetary gearset to a housing. The present invention is a new way to interface the ring gear of a planetary gearset with the housing by incorporating a series of lugs around the ring gear and adjusting the number of lugs and the size and the shape of the lugs. The distribution of these lugs affects the sound levels transferred from the planetary gearset. Additionally, multiple rows of lugs can also be strategically arranged on one ring gear to gain further noise and vibration improvement.