Device for varying the thrust of a propulsion system using a solid propellant
US4777795A · kind A · utility
12Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1987 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Feb 18, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02K9/86
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The device comprises, at the outlet of the combustion chamber 3, a movable assembly comprising a hollow closure member 26 constituting a needle 27, a thermal shield 22 and an annular piston 14. This closure member acts as a piston under the effect of the pressure of the gases and drives the annular piston so as to expel a hydraulic fluid from a jack chamber 33 having an adjustable outlet 34. The closure member 26 defines a chamber 28 for calming the gases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.