序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
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81 | Linear accelerator | US635645 | 1990-11-28 | US5131313A | 1992-07-21 | Theodore Zimmerman |
A linear accelerator mounted on a launcher that injects propellant into a launcher behind a projectile causing the projectile to achieve greater distances. The launcher has apertures along its longitudinal surface allowing propellant to enter the inner cavity of the launcher. When the projectile is fired, additional propellant is introduced behind the projectile giving it additional impetus. | ||||||
82 | Method and apparatus for zero velocity start ram acceleration | US628420 | 1990-12-14 | US5097743A | 1992-03-24 | Abraham Hertzberg; Adam P. Bruckner; Carl Knowlen; Keith A. McFall |
A method and apparatus for initiating a ram acceleration of a projectile that is at rest. A projectile (34) is positioned in a starting chamber (14) of a launch tube (12). Starting chamber (14) is either filled with a gas at a relatively low pressure or is substantially evacuated. A wave reflection disk (42/42') is positioned a short distance behind the projectile. Downstream of the starting chamber are a plurality of segments, including a first segment (16), which is filled with a combustible gas mixture at a substantially higher pressure than that in the starting chamber. The first segment is separated from the starting chamber by a pair of thin membranes (20a and 20b). These membranes have a characteristic burst pressure that is about midway between the differential pressure in the first segment and the starting chamber. To initiate the ram acceleration process, fluid between the two membranes is exhausted to the atmosphere, sequentially exposing them to a differential pressure that exceeds their burst pressure. Bursting of these membranes enables the combustible gas mixture to expand unsteadily from the first segment into the starting chamber. An expansion wave produced by the expanding combustible gas mixture passes the projectile and reflects from the wave reflection disk as a shock wave. The wave reflection disk converts the kinetic energy of the expanding gas into thermal energy, at a temperature sufficient to initiate combustion of the mixture. The shock wave propagates downstream from the wave reflection disk, attaches to the projectile, and establishes a stable, thermally choked ram acceleration of the projectile down the launch tube. As the combustible gas mixture burns behind the projectile, the resulting pressure wave accelerates the projectile down the bore of the tube into successive combustible gas-filled segments. | ||||||
83 | Method of and apparatus for accelerating a projectile | US471215 | 1983-03-01 | US4590842A | 1986-05-27 | Yeshayahu S. A. Goldstein; Derek A. Tidman |
A projectile is accelerated along a confined path by supplying a pulsed high pressure, high velocity plasma jet to the rear of the projectile as the projectile traverses the path. The jet enters the confined path at a non-zero angle relative to the projectile path. The pulse is derived from a dielectric capillary tube having an interior wall from which plasma forming material is ablated in response to a discharge voltage. The projectile can be accelerated in response to the kinetic energy in the plasma jet or in response to a pressure increase of gases in the confined path resulting from the heat added to the gases by the plasma. | ||||||
84 | Kinetic barrel gun | US674469 | 1976-04-07 | US4057002A | 1977-11-08 | William F. Donovan |
A gun having a piston accelerated by a first charge and a projectile moun to and accelerated relative to the piston by a powder charge on said piston ignited by a firing pin pneumatically actuated by the gases of the first charge. The gases of the first charge travel a convuluted path of decreasing cross-section. | ||||||
85 | Muzzle attachment for accelerating a projectle | US37665573 | 1973-07-05 | US3880044A | 1975-04-29 | KORR ABRAHAM L; WALKER EVAN HARRIS |
An efficient hypervelocity weapon system is described in which a conically-based projectile is initially launched from a reusable conventional gun into an aligned cylindrical tube of high explosive which is initiated by the rotating band located at the juncture of the conical base and the rearward end of the bourrelet. As the projectile moves through the high explosive tube, the gases generated from its detonation implode upon the conical projectile base rearwardly of the rotating band and cause the projectile to accelerate to a hypervelocity range in the direction of travel.
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86 | Force multiplying type cross-bow | US26462572 | 1972-06-20 | US3809048A | 1974-05-07 | HANDFORD C |
A multiple-arm cross-bow is provided, the same having an elongate central bowstock portion and a plurality of arms extending on either side of the bowstock. The arms are connected together through a pulley construction by a bow-string and are so arranged that the force of the cocked bowstring is applied to the arrow missile over an elongated distance. When the bow-arms are cocked or bent rearwardly for but a short distance a greater average thrust and a multiplied force will be imparted to the arrow. A thrust is applied to an arrow over a longer relative distance but through a shorter interval of time.
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87 | High firing rate hypervelocity gun and ammunition therefor | US3503300D | 1967-09-01 | US3503300A | 1970-03-31 | DARDICK DAVID |
88 | High velocity accelerator for projectiles | US85056659 | 1959-11-03 | US3056336A | 1962-10-02 | TAILER PETER L |
89 | Missile launcher and high velocity gun | US1000760 | 1960-02-19 | US3054329A | 1962-09-18 | WILLIG FRANK J |
90 | High velocity accelerator | US72161858 | 1958-03-14 | US2953065A | 1960-09-20 | BROWN MARTIN P |
91 | Multicharge gun | US39900541 | 1941-06-20 | US2360217A | 1944-10-10 | LOUIS FRANCIS |
92 | Improvement in accelerating-guns | US200740D | US200740A | 1878-02-26 | ||
93 | HYBRID PROPELLANT ELECTROMAGNETIC GUN SYSTEM | EP14879267.4 | 2014-12-19 | EP3084337B1 | 2018-05-23 | GRACE, Fred Irvin; YILBONG, Kim; ENIG, Eric N.; BENTZ, Daniel; BARNARD, Michael J. |
A hybrid gun device composed of two barrels (1,10) that accept energy from combustion of standard propellant (6), one barrel (10) being operative to produce a high intensity electric current to add accelerating energy to a projectile (7) in the second barrel (1) and at least one coil (8) stage to convert energy between electrical and kinetic to cause the projectile (7) to be launched at hypervelocity. | ||||||
94 | HYBRID PROPELLANT ELECTROMAGNETIC GUN SYSTEM | EP14879267.4 | 2014-12-19 | EP3084337A2 | 2016-10-26 | GRACE, Fred Irvin; YILBONG, Kim; ENIG, Eric N.; BENTZ, Daniel; BARNARD, Michael J. |
A hybrid gun device composed of two barrels (1,10) that accept energy from combustion of standard propellant (6), one barrel (10) being operative to produce a high intensity electric current to add accelerating energy to a projectile (7) in the second barrel (1) and at least one coil (8) stage to convert energy between electrical and kinetic to cause the projectile (7) to be launched at hypervelocity. | ||||||
95 | RAM ACCELERATOR SYSTEM | EP14770528.9 | 2014-01-21 | EP2971431A1 | 2016-01-20 | RUSSEL, Mark, C. |
One or more ram accelerator devices may be used to form one or more holes in geologic or other material. These holes may be used for drilling, tunnel boring, excavation, and so forth. The ram accelerator devices propel projectiles which are accelerated by combustion of one or more combustible gasses in a ram effect to reach velocities exceeding 500 meters per second. | ||||||
96 | WAFFENSYSTEM MIT EINER RÜCKSTOßFREIEN ODER RÜCKSTOßARMEN WAFFE UND EINER MIT DER WAFFE VERSCHIEßBAREN GRANATE | EP13726140.0 | 2013-05-21 | EP2856064A1 | 2015-04-08 | GUTH, Sven |
The invention relates to weapon system (1) comprising a recoil-free or low-recoil weapon (2), which has a weapon barrel (3), and further comprising a shell (4) that can be shot by means of the weapon (2) and which has a rod-shaped rear region (5) that protrudes into the weapon barrel at the opening end. According to the invention, in order for the shell (4) to have an increased exit speed in comparison with comparable known weapon systems having a recoil-free or low-recoil weapon for such a weapon system (1), the weapon (2) is designed as a light-gas accelerator in order to pre-accelerate the shell (4). Thus, exit speeds of the shell (4) above the speed of sound can be produced in a simple manner. The post-acceleration of the shell (4) then occurs outside of the weapon barrel (3) by means of an athodyd (ramjet drive) associated with the shell (4). | ||||||
97 | METHODS AND APPARATUS FOR SELECTABLE VELOCITY PROJECTILE SYSTEM | EP06849663 | 2006-01-10 | EP1851501A4 | 2012-05-02 | DRYER RICHARD; CONRARDY NEAL |
98 | Multiple pulse cartridge ignition system | EP01102856.0 | 2001-02-13 | EP1126233A2 | 2001-08-22 | Crickenberger, Andrew B.; Ghazi, Saleem L. |
An electronically controlled multi-pulse ignitor ignites a cartridge used to launch a projectile (50). An electronics module (9) is programmed with a temperature performance profile for the cartridge. A temperature sensor is coupled to supply current cartridge temperature data to the electronics module (9). A first event ignitor is coupled to the electronics module (9) and initiates a ballistic cycle upon command from the electronics module (9). A translation mechanism (64), including a first charge coupled to the first event ignitor, moves the projectile (50) forward to increase the free volume in the cartridge. A second event ignitor (70), coupled to receive a second event ignition signal from the electronics module (9), ignites the main propellant charge on receiving the second event ignition signal from the electronics module (9), where the timing of ignition of the second event ignitor (70) is determined by the temperature performance profile and the current cartridge temperature data. |
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99 | A method and apparatus for accelerating projectiles | EP89103594.1 | 1989-03-01 | EP0331150B1 | 1994-01-19 | Kaplan, Zvi; Loeb, Avi; Engler, Gideon |
100 | Lanceur à deux étages comportant un système de propulsion pyrotechnique et un dispositif d'allumage électrique | EP90402252.2 | 1990-08-06 | EP0412897B1 | 1993-11-03 | Roche, Michel; Nicolas, André |