Patent ID: 6370867
Filing Date: 2002-04-16
Classification: F02K

Abstract:
A throttleable injector assembly for a rocket which delivers oxidizer to a combustion chamber from an oxidizer chamber within an oxidizer housing, said injector assembly comprising:a plurality of injector tubes mounted in and extending through the oxidizer housing, each tube having a first end in the oxidizer chamber, at least one oxidizer inlet adjacent the first end extending axially along the injector tube, the inlet communicating with an interior passage of the injector tube, and an oxidizer outlet in the combustion chamber, the interior passage extending from the oxidizer inlet to the oxidizer outlet and communicating therewith; a positioning plate slidably receiving each injector tube adjacent the first end thereof, said positioning plate comprising a first member, a second member secured to the first member, and a plurality of sleeves fixedly secured between the first and second members, each of the injector tubes is slidably received within one of the sleeves of the positioning plate, and the positioning plate is selectively positionable axially along the injector tube between a first position in which the plate prevents flow of oxidizer through the inlets, and a second position in which the flow of oxidizer through the inlets is substantially unimpeded by the plate; and, means for selectively positioning the positioning plate axially along the injector tubes.