Dual area nozzle actuating mechanical actuation system

Details Dual area nozzle actuating mechanical actuation system Dual area nozzle actuating mechanical actuation system

1982-09-28

1984-10-23

Casaregola, Louis J.

Power plants

Reaction motor

Interrelated reaction motors

60242, 60250, 188 67, F02K 912

Patent

active

044780400

ABSTRACT:
In a dual area nozzle automatic mechanical actuation system for a boost-sustain solid propellant rocket motor, a pressure differential is created on the opposite sides of a ball-catch retaining ring when a fast-burning portion of the solid-propellant grain is spent and a slow-burning portion is ignited that allows the blow-out load on the smaller throat orifice of a mechanically restrained movable nozzle section to move the movable nozzle section to seat the smaller throat orifice against the larger throat orifice of a fixed nozzle section.

REFERENCES:
patent: 3011309 (1961-12-01), Carter
patent: 3182447 (1965-05-01), Bell
patent: 3230704 (1966-01-01), Lovingham
patent: 3495408 (1970-02-01), Frey
patent: 3914935 (1975-10-01), Burkes
patent: 4109867 (1978-08-01), Ebeling

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