Speed change gear system
US4089239A · kind A · utility
30Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1976 |
| Grant date | May 16, 1978 |
| Priority date | — |
| Expiry date | Jan 22, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2012
- 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 three planetary gear sets of the single-pinion type, three clutches, and two brakes. As a result of the coupling and uncoupling of the clutches and brakes, the movable elements of each of the planetary gear sets are suitably coupled so as to attain the various speed ranges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.