A modular light gas accelerator includes a first stage having a chamber having a rear portion and a discharge portion and a barrel located inside the chamber. The barrel has a rear port at the rear portion of the chamber and a discharge port extending outwardly from the discharge portion of the cham
A modular light gas accelerator includes a first stage having a chamber having a rear portion and a discharge portion and a barrel located inside the chamber. The barrel has a rear port at the rear portion of the chamber and a discharge port extending outwardly from the discharge portion of the chamber. A piston is slidingly located inside the barrel proximate to the rear port and is adapted to be propelled through the barrel and out of the discharge port. A second stage includes a receiver adapted to receive the piston from the discharge port. The receiver has a receiver passage. A frangible member extends across the receiver passage. A projectile is located downstream of the frangible member. The projectile is adapted to travel along the receiver passage. A target chamber is located at a downstream end of the receiver passage.
대표청구항▼
1. A modular light gas accelerator comprising: a first stage including: a chamber having a rear portion and a discharge portion;a barrel located inside the chamber, the barrel having a rear port at the rear portion of the chamber and a discharge port extending outwardly from the discharge portion of
1. A modular light gas accelerator comprising: a first stage including: a chamber having a rear portion and a discharge portion;a barrel located inside the chamber, the barrel having a rear port at the rear portion of the chamber and a discharge port extending outwardly from the discharge portion of the chamber; anda piston slidingly located inside the barrel proximate to the rear port and adapted to be propelled through the barrel and out of the discharge port;anda second stage removably attached to the discharge end of the first stage, the second stage including: a receiver adapted to receive the piston from the discharge port, the receiver having a receiver passage having a first upstream diameter and a second downstream diameter, smaller than the first upstream diameter;a frangible member extending across the second downstream diameter;a projectile located downstream of the frangible member, the projectile being adapted to travel along the receiver passage; anda target chamber located at a downstream end of the receiver passage, such that a target is able to be mounted in the target chamber and be struck by the projectile after the projectile exits the receiver passage. 2. The modular light gas accelerator according to claim 1, wherein the barrel comprises a sidewall, and wherein the sidewall has an opening therein, the opening being sized such that the piston is sufficiently large to obscure the entire opening. 3. The modular light gas accelerator according to claim 1, further comprising a vacuum line connection at the rear port. 4. The modular light gas accelerator according to claim 3, further comprising a spacer disposed in the barrel between the piston and the vacuum line connection. 5. The modular light gas accelerator according to claim 1, further comprising a port providing fluid communication to the chamber from exterior of the chamber. 6. The modular light gas accelerator according to claim 1, wherein the receiver passage has a conical cross section between the first upstream diameter and the second downstream diameter. 7. The modular light gas accelerator according to claim 1, further comprising a gas tap in fluid communication with the first upstream diameter. 8. The modular light gas accelerator according to claim 1, wherein the frangible member comprises a burst disc. 9. A modular light gas accelerator comprising: a launch portion comprising a compressed gas cylinder having an interior and a launch barrel located in the compressed gas cylinder, the barrel having an opening in fluid communication with the interior of the compressed gas cylinder, the opening having a length; anda target portion releasably connected to the launch portion, the target portion comprising: an adapter block having an input passage end in fluid communication with the barrel, an output passage end, and a passage having a decreasing diameter between the input passage end and the output passage end;a frangible member disposed downstream of the output passage end; anda projectile disposed downstream of the frangible member. 10. The modular light gas accelerator according to claim 9, wherein the launch portion further comprises an upstream port in fluid communication with the barrel. 11. The modular light gas accelerator according to claim 10, further comprising a piston movably disposed in the barrel, the piston having a length greater than the length of the opening. 12. The modular light gas accelerator according to claim 11, further comprising a spacer disposed between the upstream port and the piston such that, when the piston is in contact with the spacer, the piston occludes the opening. 13. The modular light gas accelerator according to claim 10, wherein the compressed gas cylinder is adapted to be connected to a compressed gas source. 14. The modular light gas accelerator according to claim 11, wherein the upstream port is adapted to be connected to the compressed gas source. 15. The modular light gas accelerator according to claim 9, wherein the adapter passage is conically shaped. 16. The modular light gas accelerator according to claim 9, further comprising a flight tube located downstream of the frangible member, wherein the projectile is slidably disposed in the flight tube. 17. A light gas accelerator comprising: a chamber having a rear portion and a discharge portion;a barrel located inside the chamber, the barrel having: a rear port at the rear portion of the chamber;a discharge port extending outwardly from the discharge portion of the chamber; andan opening proximate to the discharge end and in fluid communication with the chamber, the opening having a length; anda piston slidingly located inside the barrel proximate to the rear port and adapted to be propelled through the barrel and out of the discharge port, the piston having a length longer than the length of the opening. 18. The light gas accelerator according to claim 17, further comprising a projectile adapted to be slid over the barrel discharge port such that, upon the piston sliding along the barrel and exiting the discharge port, the piston encounters the projectile and pushes the projectile off of the barrel. 19. The light gas accelerator according to claim 17, further comprising a sonic generator adapted to be slid over the barrel discharge port such that, upon the piston sliding along the barrel and exiting the discharge port, the piston encounters the sonic generator, causing the sonic generator to emit a shock wave. 20. The light gas accelerator according to claim 17, further comprising a target chamber adapted to be connected to the barrel discharge port, the target chamber comprising a projectile such that the piston is propelled along the barrel to the barrel discharge port at a piston speed and, after the piston exits the barrel discharge port, the projectile is propelled at a speed higher than the piston speed.
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이 특허에 인용된 특허 (18)
Hertzberg Abraham (Bellevue WA) Bruckner Adam P. (Seattle WA) Bogdanoff David W. (Bellevue WA), Apparatus and method for the acceleration of projectiles to hypervelocities.
Adam Charles R. (Gillingham GB2) Bowden Andrew V. B. (Sevenoaks GB2) Metcher Graeme D. (London GB2) Richards Allan J. (Dartford GB2), Hypervelocity sabot.
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