Ordnance – Accelerating
Patent
1988-02-18
1990-06-12
Bentley, Stephen C.
Ordnance
Accelerating
102436, 102503, 102501, 102440, F41F 100
Patent
active
049323067
ABSTRACT:
A projectile is accelerated to hypersonic velocity in an initially closed barrel of a diameter considerably larger than the projectile diameter which is filled with a compressed fuel-oxidizer mixture. The projectile comprises a conical nose portion, an intermediate portion formed to generate oblique detonation waves, and a tapering tail portion provided with several radial vanes. The projectile is propelled by an initiator gun at supersonic speed through one of the intitially closed ends in the barrel, were the detonation waves cause detonation and combustion of the fuel-oxidizer mixture. The detonation results in a high pressure increase to the rear of the projectile accelerating it along the barrel and shooting it at the reached hypersonic speed through the other, initially closed end of the barrel into the open.
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patent: 3468217 (1969-09-01), Cooley
patent: 4722261 (1988-02-01), Titus
patent: 4726279 (1988-02-01), Kepler
Knowlen et al., Performance Capabilities of the Ram Accelerator, AIAA/SAE/ASME/ASEE 23rd Joint Propulsion Conference, Jun. 29-Jul. 2, 1987, San Diego, Calif.
Hertzberg et al., The Ram Accelerator: A New Chemical Method of Achieving Ultrahigh Velocities, 37th Meeting of the Aeroballistic Range Association, Quebec, Canada, Sep. 9 12, 1986.
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