Patent ID: 6324832
Filing Date: 2001-12-04
Classification: F02K

Abstract:
An ampoule with starting fuel for igniting propellant components of a Liquid-Propellant Rocket Engine, the ampoule comprisinga cylindrical body having an inlet and an outlet;a first diaphragm unit mounted inside the cylindrical body to a side of the inlet, the first diaphragm unit comprisinga first piston having a first stem, anda first rupturable diaphragm integral with the first piston and attached with an air-tight weld along a periphery of the cylindrical body;a second diaphragm unit mounted inside the cylindrial body to a side of the outlet, the second diaphragm unit comprisinga second piston with a second stem, anda second rupturable diaphragm integral with the second piston and attached with an air-tight weld along a periphery of the cylindrical body;a first guide bush coupled to a side of the cylindrical body, the first stem of the first diaphragm unit being received in the first guide bush;a second guide bush coupled to a side of the cylindrical body, the second stem of the second diaphragm unit received in the second guide bush;a first spring lock adapted to secure the first stem, comprisinga first spring ring the first spring ring received in an annular recess of the first guide bush, andan annular recess of an external surface of the first stem configured to receive the first spring ring after the first diaphragm unit is activated;a second spring lock adapted to secure the second stem, comprisinga second spring ring received in an annular recess of the second guide bush, andan annular recess of an external surface of the second stem configured to receive the second spring ring after the second diaphragm unit is activated; anda starting fuel source, wherein starting fuel provided by the starting fuel source fills an internal space of the cylindrical body between the first diaphragm unit and the second diaphragm unit.