Multi-speed transmission having four planetary gear sets
US8343005B2 · kind B2 · utility
84Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2011 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Jun 30, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2046
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A transmission is provided having an input member, an output member, two planetary gear sets, another two planetary gear sets that may be stacked or nested to form a planetary gear set assembly, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The stacked or nested planetary gear set assembly has a carrier member for rotatably supporting a first plurality of pinion gears and a second plurality of pinion gears, a ring gear and a common member. The torque transmitting devices include clutches and brakes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.