Speed change gear system
US3946623A · kind A · utility
31Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1974 |
| Grant date | Mar 30, 1976 |
| Priority date | — |
| Expiry date | Aug 29, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2048
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A speed change gear system for providing at least four forward drive speed ranges and one reverse drive speed range includes planetary gear sets of the single-pinion type and simple planetary gear sets of the double-pinion type as well as a plurality of clutches and brakes. As a result of the coupling and uncoupling of the clutches and brakes, the movable elements of the gear sets are suitably coupled so as to attain the various speed ranges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.