Compact planetary transmission
US8083630B2 · kind B2 · utility
8Cited by
24References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2008 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Apr 6, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2046
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The transmission includes a housing, input and output shafts, and four planetary gear trains each having at least three members including a ring gear, at least one carrier, and a sun gear. The input and output shafts are is continuously interconnected with gear(s) and/or carrier(s). Links continuously interconnect the carrier(s) and/or gears between gear trains. The six torque-transmitting mechanisms are engagable in combinations of two to establish at least seven forward speed ratios and at least one reverse speed ratio between the input shaft and the output shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.