Patent ID: 6582542
Filing Date: 2003-06-24
Classification: B23P,F02K

Abstract:
A method of producing a thrust nozzle, the method comprising the steps of:(a) forming a thrust nozzle liner having an outer surface and a length; (b) forming at least a first shell having an interior and an exterior surface; (c) providing at least one rib on one of either of the thrust nozzle liner or the first shell; (d) placing the first shell around the outer surface of the thrust nozzle liner, such that the at least one rib extends between the outer surface of the thrust nozzle liner and the interior surface of the first shell to form a gap therebetween; (e) inserting a removable casting material within the gap, wherein the removable casting material is a gas; and (f) removing the removable casting material from within the gap to form at least one channel extending at least a portion of the length of the thrust nozzle liner.