Patent ID: 7287725

Claim:
A rocket engine control valve in combination with a pressurized gas source, the combination comprising: the rocket control valve, including: a fixed portion integrated to a pressure chamber and having fixed portion openings therein; and a movable portion having movable portion openings therein; and the pressurized gas source; wherein the movable portion overlies the fixed portion; wherein the movable portion is rotatably mounted to the fixed portion; wherein the fixed portion openings and the movable portion openings combine to produce plural nozzles each having a convergent section, a divergent section, and a throat; wherein the fixed portion openings and the movable portion openings line up, allowing flow therethrough, when the movable portion is in an open position relative to the fixed portion; wherein the fixed portion openings and the movable portion openings are offset from one another, preventing flow therethrough, when the movable portion is in a closed position relative to the fixed portion; and wherein the pressurized gas source is upstream of the control valve.