Patent ID: 6543717
Filing Date: 2003-04-08
Classification: F02K,F05D

Abstract:
A modulatable thrust device for controlling an aerospace vehicle by generating lateral thrust directed substantially perpendicularly to the main axis of the vehicle, the thrust device comprising:a valve body having a chamber; a moving needle extending partly in said chamber; at least one gas admission opening out into the chamber; a gas outlet opening out into the chamber and defined by a wall portion that co-operates with a portion of a nose of the needle to define an outlet section for gas leaving the chamber, said needle nose having an aerodynamic concave profile and said wall portion being shaped in such a manner as to be capable of directing the gas leaving the chamber essentially against the concave shape of the needle and thereby producing lateral thrust taken up by the needle; and actuator means for controlling the position of the needle in the valve body by acting on a rear end portion of the needle.