Speed change gear system
US3971267A · kind A · utility
20Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1974 |
| Grant date | Jul 27, 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 two planetary gear sets of the single-pinion type and one planetary gear set of the double-pinion type, two clutches, and three 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.