Planetary gear train of automatic transmission for vehicles
US9845845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2016 |
| Grant date | Dec 19, 2017 |
| Priority date | — |
| Expiry date | Sep 14, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2097
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A planetary gear train of an automatic transmission for vehicle may include an input shaft receiving power of an engine, an output shaft outputting shifted power of the engine, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, a first shaft directly connected with the input shaft, a second shaft, a third shaft, a fourth shaft selectively connectable to the third shaft, a fifth shaft selectively connectable with the third shaft, a sixth shaft, a seventh shaft directly connected with a transmission housing, an eighth shaft selectively connectable with each of the fifth shaft and the sixth shaft, and a ninth shaft selectively connectable with the fifth shaft, and directly connected with the output shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.