Electromechanical/pneumatic rocket engine valve actuator
US6860464B1 · kind B1 · utility
4Cited by
18References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2004 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Jan 29, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/53
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve actuator assembly is provided for selectively opening and closing a valve. The valve actuator assembly includes a primary motor and secondary motor both operatively coupled to an output shaft and adapted to receive valve position commands and operable, in response thereto, to selectively drive the output shaft in a valve open or close direction and a tertiary motor adapted to receive a flow of pressurized air and operable, in response thereto, to drive the output shaft in a valve close direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.