Transmission mechanism
US4235126A · kind A · utility
0Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 1978 |
| Grant date | Nov 25, 1980 |
| Priority date | — |
| Expiry date | Jun 28, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H3/663
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A compact automatic transmission of the planetary type adapted for front wheel drive installations including a Ravigneaux gear set and four friction elements whereby 3-forward drive ratios and one reverse ratio may be established, and a first shaft is provided connected directly to the engine and a second shaft being connected to be driven through a hydraulic torque converter. Each of the shafts is connected to drive an element of the gear set whereby a partly hydraulic and partly mechanical drive is provided. In addition, only one friction element need be engaged for each of the ratios established by the transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.