US Patent:
20100292043, Nov 18, 2010
Inventors:
Kun Tao - Irvine CA, US
Susan M. Stroope - Oxford MI, US
Assignee:
BorgWarner Inc. - Auburn Hills MI
International Classification:
F16H 57/08
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.
