Position driven hot gas proportional thruster valve
US6227247A · kind A · utility
13Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2000 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Feb 10, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86598
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A thruster valve has a continuously positionable piston between a closed position and a maximum open position. The piston moves in response to the difference in pressure between the pressure in the intermediate annulus and the pressure behind the piston. A pivotable flapper valve regulates this pressure difference. When a change in thrust is required, the position of the flapper is changed causing a change in this pressure difference which causes the piston to move until the desired thrust level is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.