Hydraulic servovalves
US10344885B2 · kind B2 · utility
2Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2014 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Jul 3, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A servovalve has a pilot stage having a piezoelectric element actuating a pilot stage spool valve, which pilot stage spool valve comprises an output control fluid line to a main stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.