Continuously variable transmission
US7335125B2 · kind B2 · utility
3Cited by
15References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 15, 2005 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Jan 16, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2037/103
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention has a dual sun planetary gearset, as well as a dog clutch or other type of shifting device, which allows for the hydrostatic unit to operate in a reverse direction in similar fashion to how it operates in a forward direction, thereby increasing efficiency and torque in the reverse direction. The gearset of the present invention has a first sun gear having one or more planetary gears that are mounted on a carrier, and a second sun gear, also having one or more planetary gears that are mounted on the same common carrier as the first set of planetary gears.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.