Servovalve
US10563675B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 7, 2017 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Jan 19, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86702
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A servovalve includes a fluid transfer valve assembly comprising a supply port and a control port a moveable valve spool arranged to regulate flow of fluid from the supply port to the control port in response to a control signal; and a jet pipe assembly configured to direct fluid to the ends of the spool to axially move the valve spool relative to the fluid transfer assembly in response to the control signal to regulate the fluid flow. The jet pipe assembly includes a jet pipe and a connector header fluidly connecting the jet pipe to a nozzle via which fluid is directed to the spool ends. One or more openings is provided in the spool such that fluid from the supply port flows into the interior of the spool and into the jet pipe and to the nozzle via the connector header.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.