Seven- or eight-speed transmission
US7059995B2 · kind B2 · utility
34Cited by
11References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2004 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Jul 15, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2097
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multi-speed transmission includes an input shaft, an output shaft, and three planetary gear sets. The ring gear of the second planetary gear set is integral with the ring gear of the first planetary gear set, and the carrier of the second planetary gear set is continuously connected with the carrier of the first planetary gear set. Six torque-transmitting mechanisms are engaged in combinations of two to establish at least seven forward speed ratios and a reverse speed ratio between the input shaft and the output shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.