Control circuit for transmission variable displacement pump with improved efficiency
US9803638B2 · kind B2 · utility
0Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2012 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Oct 31, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0402
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a control circuit for a variable displacement pump in a vehicle transmission, including: a regulator valve configured to regulate displacement control fluid to the variable displacement pump; and a response limiter in communication with the regulator valve, configured to mitigate pressure oscillations in the control circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.