Hydraulic control system for continuously variable V-belt transmission
US4545265A · kind A · utility
15Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1983 |
| Grant date | Oct 8, 1985 |
| Priority date | — |
| Expiry date | Oct 20, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/66263
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A maximum reduction ratio maintaining valve is fluidly disposed between a drive pulley and a shift control valve which controls the supply of fluid to and discharge thereof from the drive pulley. The maximum reduction ratio maintaining valve drains the drive pulley to set a reduction ratio between the drive and driven pulleys at the largest reduction ratio to facilitate starting a vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.