Latch valve for actuating a transmission control element
US8960232B2 · kind B2 · utility
1Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2011 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Jul 27, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86614
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A latch valve includes a first port containing line pressure, a second port containing control pressure, a third port located between the first and second ports, alternately connecting the first and second ports to a transmission control element, and a fourth port containing control pressure that tends to close the second port and open the first port in opposition to a spring force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.