Propelling device for a projectile in a missile
AssigneeNammo Raufoss AS
InventorHans B. Biserød
Life of this patent
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Abstract
A propelling device for a projectile that is lying in a standby position within a rocket motor in a missile. The projectile is translated with respect to the rocket motor by means of a pyrotechnic charge before the rocket motor is ignited. The projectile is lying within a translation tube centrally located in the rocket motor. The projectile comprises a power piston in the rear end thereof. The power piston encloses a pyrotechnic power charge and a pyrotechnic squib. The translation tube is sealable closed behind the power piston and forms a closed expansion chamber for the pyrotechnic charges which, by ignition, generate gas pressure that activates the power piston and thus propels the projectile forward within the translation tube.
Claims20
A propelling device for a projectile that is lying in a standby position within a rocket motor in a missile, where the projectile is translated with respect to the rocket motor, the propelling device comprising:
- a pyrotechnic charge, or pyrogen igniter;
- a pyrogenic squib in contact with the pyrotechnic charge or pyrogen ignitor;
- a translation tube centrally located in the rocket motor;
- a projectile arranged within the translation tube;
- a power piston arranged in the translation tube and at the rear end of the projectile wherein the power piston encloses the pyrotechnic charge or pyrogenic ignitor and the pyrogenic squib and wherein the translation tube is sealably closed behind the power piston and forms a closed expansion chamber for the pyrotechnic charge or pyrogenic ignitor, which by ignition generates gas pressure that propels the power piston and thus the projectile.
A missile comprising:
- a rocket motor wherein the rocket motor propels the missile;
- a translation tube arranged within the rocket motor;
- a projectile positioned within the translation tube, wherein the projectile is adapted to separate from the rocket motor while the missile is in flight;
- and
- a power piston positioned within the translation tube wherein the power piston comprises ignitable components such that the power piston induces the projectile to move down the translation tube before the missile is in flight.
Dependencies are inferred from the claim text.