Pressure regulation servo-valve with reduced leakage flow rate
US10344780B2 · kind B2 · utility
1Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2018 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Feb 22, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8659
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pressure regulation servo-valve comprising a body having a utilization port, a feed port, and a return port, a spool mounted as a sliding fit in the body, the spool co-operating with the body to define a pilot chamber connected to the utilization port. The spool and the body together further define a priming chamber connected to the feed port via a second constriction and connected to the nozzle via a third constriction, and in which there exists a priming pressure acting on the spool in the first direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.