Latching valve for a torque-transmitting mechanism in a transmission
US7059579B2 · kind B2 · utility
7Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 2004 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Oct 28, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2048/0221
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A torque-transmitting mechanism control valve disposed between a hydrostatic source of pressure and a torque-transmitting mechanism is effective to direct fluid pressure to engage the torque-transmitting mechanism when a control pressure is present, effective to retain the valve closed when source pressure is present but control pressure is not, and to retain the valve closed when torque-transmitting apply pressure is present and source pressure is not and control pressure is not present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.