Oil pressure controller for continuously variable transmission
US5902207A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 1997 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Nov 19, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/664
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Two speed change units of a continuously variable transmission for a vehicle are accommodated in chambers partitioned by an intermediate wall in a casing. Oil pan is fitted to the underside of the casing in order to store lubricating oil for the units. A strainer for filtering the lubricating oil is disposed in the oil pan. A controller comprising a control valve driven by an actuator via a speed change link, a cam and a feedback link is provided for controlling the speed change ratio of the speed change units. The actuator is disposed further towards the rear of the vehicle body than the intermediate wall. The control valve, feedback link and cam are disposed further towards the front of the vehicle body than the intermediate wall. This arrangement avoids the interference of the actuator and the strainer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.