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US 4,357,795 AGranted
Multi-burn solid fuel restartable rocket and method of use
AssigneeGeneral Dynamics, Pomona Division
InventorsThomas W. Bastian, J. Sydney Roberts
Life of this patent
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Abstract
A multi-burn restartable solid rocket fuel having plural layers, each independently ignitable, including a central core, and at least one outer cylindrical layer separated from the central core by a non-ignitable layer, and the method of utilization therefor including first igniting the central core in an end burned configuration, and subsequently or concurrently igniting the next adjacent layer or layers in an end burned configuration, as desired.
Claims17
a multi-burn solid fuel restartable rocket motor comprising:
- a motor housing of tubular shape;
- a nozzle adjacent said housing for transmission of exhaust gases;
- a multi-layer propellant comprising a central solid core of propellant and at least one concentric layer of propellant separated by a burn inhibiting barrier effective to prevent burning between said layers;
- and
- ignition means capable of independently igniting each layer individually and producing end burning of at least said solid core.
2 more elements
A method of propelling a solid fuel rocket comprising:
- providing a rocket body of substantially tubular shape with at least one exhaust nozzle for the provision of gas flow for propulsion;
- providing a plurality of concentrically arranged, cylindrical, independently ignitable fuel units separated by a burn inhibiting layer, the innermost unit being rod shaped;
- igniting the innermost unit in an end burn configuration for initial propulsion of said rocket;
- and
- subsquently igniting at least the innermost of the remaining units for propulsion.
2 more elements
Dependencies are inferred from the claim text.