Power plants – Reaction motor – Method of operation
Patent
1993-06-15
1994-07-19
Bertsch, Richard A.
Power plants
Reaction motor
Method of operation
60271, 2989001, 277 9, B63H 1100, F16J 900
Patent
active
053297628
ABSTRACT:
A method for assembling a rocket propulsion motor including a motor case and a nozzle assembly, wherein the assembling is carried out under vacuum so that air can not be presented between a silicon sealant layer and a first O-ring disposed between the motor case and the nozzle assembly, thereby preventing the generation of air passage and air pocket in a silicon sealant layer coated over the assembled portions of the rocket propulsion motor. The silicon sealant is prepared by mixing a silicon sealant material with a setting agent. The mixing is also carried out under vacuum, so as to prevent the sealant from containing air. For venting air from a space defined the silicon sealant layer and the first O-ring under vacuum, a plurality of spacing bolts are used which serve to space the motor case and the nozzle assembly at a predetermined distance.
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Cho Won Man
Kim Won Hoon
Lee Tae Ho
Oh Gwang Hwan
Oh Jung Rok
Agency for Defense Development
Bertsch Richard A.
Richman Howard R.
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