Automatic transmission for light vehicles employing V-Twin engines
US6910987B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 20, 2003 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Dec 22, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/0039
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An automatic transmission is specially developed for light-vehicles driven by V-Twin engines and which utilize a separate transmission housing from the engine, and where the transmission is connected with the engine output shaft by a suitable linkage. The transmission includes a main input drive shaft oriented parallel to the engine output crankshaft, and a coaxially aligned drive output shaft. The transmission contains within a gear box a ring gear, planetary gears mounted to a planetary carrier which is mounted to the output shaft, two sun gears, a pair of clutch assemblies and two braking mechanisms. A first clutch assembly includes a clutch drive coupled to the input drive shaft, and an array of clutch plate. The second other clutch assembly is used to couple or uncouple the ring gear to the input shaft for rotation therewith. A one-way clutch is engaged through the actuation of the clutch drum to engage a first ring gear. The first ring gear in turn engages at least two and preferably four groups of idle planetary gears mounted to the planetary carrier. The idle gears in turn mesh with and rotate a first diameter end of an associated compound planetary gear also provided on th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.