Ratio limiting arrangement
US8388484B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2006 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Sep 5, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2037/0886
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An arrangement is disclosed for providing an “end-stop” function for a variator in a continuously variable transmission. The variator (8) needs some arrangement for preventing its own drive ratio from going beyond a ratio limit. In accordance with the present invention, this is provided by means of a one-way clutch (22 or 24). The one-way clutch is coupled to both the variators input and its output, and is arranged to engage (lock up) when the variator reaches its ratio limit, so that the variator is prevented from going beyond the limits. The invention is particularly suited to use with transmissions which provide two regimes and a synchronous change between them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.