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:
Nov. 26, 2013
Filed:
Dec. 13, 2012
Hyundai Motor Company, Seoul, KR;
Hyu Tae Shim, Hwaseong, KR;
Kangsoo Seo, Suwon-si, KR;
Hyundia Motor Company, Seoul, KR;
Abstract
A planetary gear train may include an input shaft; an output shaft; a first compound planetary gear set having first and second planetary gear sets, a second compound planetary gear set having third and fourth planetary gear sets to change the rotation speeds input from the first compound planetary gear set and the rotation speed of the input shaft input through one variable input path into eleven forward speeds and one reverse speed and to finally output the eleven forward speeds and the one reverse speed; eight rotation paths having two rotation elements connected to each other or one rotation element among the rotation elements of the first and second compound planetary gear sets; and seven friction members including four clutches interposed between the rotation paths or between a selected rotation path and the input shaft, and three brakes variably connecting a selected rotation path to a transmission housing.