Power plants – Reaction motor – Solid propellant
Patent
1989-08-07
1992-07-07
Bertsch, Richard A.
Power plants
Reaction motor
Solid propellant
60255, F02K 1100, F02G 100
Patent
active
051272237
ABSTRACT:
A linerless rocket motor is provided by the bonding of a reticulated support structure, which is embedded in an homogenous mass of propellant material including an oxidant, to the inner wall of the rocket motor case. An inexpensive, safe, and easy to manufacture igniter is comprised of an homogeneous mass of propellant material including an oxidant and a reticulated support structure embedded therein. A light weight, high crush strength, and high strain capability sliver for a rocket motor comprises a block of inert material and a reticulated support structure of carbon, graphite, or a non-combustible material embedded therein. A rocket motor is prevented from accidental propulsion during a fire by attaching a propellant block to the outer side of the rocket motor base. The propellant block burns and produces heat during the fire to weaken the motor case so that pressure resulting from burning of propellant in the rocket motor will burst a hole in the rocket motor case to relive the pressure. A reticulated support structure is preferably embedded in the propellant block to render the block rigid enough not to deform during long term storage and during field handling and to resist aging conditions which would otherwise cause it to become brittle.
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Hightower, Jr. James O.
Sato Tomio
Bertsch Richard A.
Thiokol Corporation
Thorpe T. S.
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