Multi-speed power transmission
US6811513B1 · kind B1 · utility
6Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2003 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Apr 28, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2097
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A power transmission has a compound input gearset, a Ravigneaux gearset, five friction type torque-transmitting mechanisms, and a one-way type torque-transmitting mechanism selectively engageable to provide at least six forward speed ratios and one reverse speed ratio for the transmission. The input gearset includes a planet carrier, which is stationary within a transmission housing and connected with a stationary portion of the transmission housing. The planet carrier also includes a central support member which provides nonrotatable housings for the apply pistons for three of the friction type torque-transmitting mechanisms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.