Radial end burner rocket motor

Details Radial end burner rocket motor Radial end burner rocket motor

1976-11-05

1979-04-10

Garrett, Robert E.

Power plants

Reaction motor

Motive fluid from diverse generators alternatively ejected...

60250, 60254, 102101, F02K 904

Patent

active

041481879

ABSTRACT:
A rocket motor grain consisting of a one-piece solid base propellant divided into an aft end section having a central cavity extending throughout its length, a forward end section having a central longitudinal cavity filled with a propellant having a substantially higher burning rate than the base propellant and a central web section being defined between the forward and aft end sections. This radial end burning rocket motor grain provides a means for utilizing high energy and high density propellants which have high burning rates in a manner such that the burning rate effects can be offset to provide enhanced motor performance without the sacrifice of high energy. After initiation of the rocket motor grain, the aft end section and central web section begin burning together to provide the desired mass flow rate, followed by initiation of a higher burning rate propellant in the forward section. Thereafter, the higher burning rate propellant, being consumed at a much higher rate than the base propellant of the forward section, forms a cylindrical radial burning port therein, thereby extending the motor burn time.

REFERENCES:
patent: 3052092 (1962-09-01), Kirkbride
patent: 3064423 (1962-11-01), Frey
patent: 3120737 (1964-02-01), Holloway
patent: 3292545 (1966-12-01), Matsubara

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