Planetary gearing arrangement for a transmission
US4070927A · kind A · utility
378Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 4, 1976 |
| Grant date | Jan 31, 1978 |
| Priority date | — |
| Expiry date | Jun 4, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2097
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A planetary gearing arrangement having a plurality of interconnected planetary gear sets controlled by friction drive establishing devices such as clutches and brakes for selectively establishing a plurality of forward drive ratios and a reverse drive ratio. The number of forward drive ratios available is one greater than the number of friction drive establishing devices. Each ratio change between the forward drives is accomplished by a single transition interchange of the friction drive establishing devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.