Planetary gear train of automatic transmission for vehicles
US8986156B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2014 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Aug 29, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2094
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A planetary gear train may include an input shaft, an output shaft, a first planetary gear set, a second planetary gear set, a first rotation shaft directly connected to one rotation element of the first planetary gear set and one rotation element of the second planetary gear set, and selectively connected to the input shaft, a second rotation shaft directly connected to another rotation element of the second planetary gear set and directly connected to the output shaft, a third rotation shaft directly connected to another rotation element of the first planetary gear set and the other rotation element of the second planetary gear set, and selectively connected to the input shaft or to a transmission housing, and a fourth rotation shaft directly connected to the other rotation element of the first planetary gear set, and selectively connected to the input shaft through two paths or to the transmission housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.