| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Seal | US945152 | 1986-12-22 | US4715260A | 1987-12-29 | Paul B. Pribis; Herbert J. West |
| A decompression seal mechanism has a body containing a series of cavities formed by alternate grooves and lands and formed of a porous structure deposited by a plasma spray, and means for supplying said porous structure with a positive flow of liquid lubricant. | ||||||
| 162 | Liquid propellant gun | US879723 | 1986-06-27 | US4693165A | 1987-09-15 | Inder K. Magoon; Robert E. Mayer |
| This invention provides a liquid propellant gun embodying a first species of this invention wherein the inner differential area piston is controlled by a variable damping mechanism, and both pistons have respective cross-sectional areas coupled to the pumping chamber. | ||||||
| 163 | Surrogate weapon for weapons effects signatures | US793671 | 1985-10-31 | US4664631A | 1987-05-12 | Robert J. Pederson; Lawrence J. Gallagher; Jack V. Miller; Lauren B. Althaus; Benjamin Rubinstein; Stephen N. Schomotolocha |
| The invention comprises a surrogate weapon for simulating the sound and flash of gunfire having a combustion chamber system in which a primary chamber is an elongated cavity, having a proximal end closed with a head and an open distal end. A combustible mixture is injected via electronically timed hydrocarbon fuel and oxidizer pulses into the combustion chamber near the closed end through an annular injector having a plurality of spaced apart fuel and oxidizer nozzles. The fuel nozzles are axially spaced from the oxidizer nozzles and are closer to the head. Thus the injected fuel/oxidizer charge is stratified with a fuel concentration distribution preferentially being richer at an ignition source near the head. The open distal end of the combustion chamber is in the form of an annular convergent nozzle which also comprises the proximal end of a secondary chamber that is acoustically tuned and provided at its open distal end with an annular muzzle having a cross-sectional shape capable of controlling the fundamental frequency and modifying tuned frequency overtones of the acoustic signature.One embodiment provides the fuel nozzles as a plurality of radial grooves on the proximal side of a generally flat plate transverse to the primary combustion chamber cavity and having an aperture therethrough, the aperture being flush with the inner surface of the combustion chamber cavity, and also providing oxidizer nozzles as a plurality of radial grooves on the distal side of the flat plate. | ||||||
| 164 | Liquid propellant weapon system | US2038 | 1979-01-08 | US4603615A | 1986-08-05 | Eugene Ashley |
| This invention has the provision of a liquid propellant gun having an annular piston whose head is formed of nested rings to provide a relatively high rate of flow from the aft face of the head to the forward face of the head. | ||||||
| 165 | Method of and assembly for firing projectiles with controlled gasification of a liquid propellant | US549382 | 1975-02-10 | US4602553A | 1986-07-29 | Raimund Germershausen; Jochen Schmitt; Karlheinz Reinelt |
| A projectile seated in a gun barrel is fired by vaporizing a liquid propellant in a loading chamber communicating with the gun barrel through a rising duct. A cluster of filling bodies occupies the entire cross-section of the duct and dips into the liquid propellant within the loading chamber, these bodies forming a multiplicity of passages in which the ignited liquid gasifies upon being driven by its own vapor pressure toward the gun barrel. | ||||||
| 166 | Liquid-propellant system | US031112 | 1979-04-13 | US4532851A | 1985-08-06 | Karlheinz Reinelt; Wolfram Witt |
| A nonhypergolic propellant for a barrel-type weapon is mixed with about 20% by volume of a propellant granulate which can be in the form of spheroidal powder, preferably a dibasic powder propellant, or in the form of micro-encapsulated liquid propellant which can be of the same composition as the liquid propellant in which the granulate is entrained or can be a different liquid propellant. The propellant granulate improves the combustion characteristics of the propellant and hence the reproducibility of the firing operations. | ||||||
| 167 | Free-piston electric current generator | US364265 | 1982-04-01 | US4403153A | 1983-09-06 | Roger Vallon |
| A medium-power, free-piston electric current generator is disclosed in which the piston is slidable in a vertical cylinder open at its top end, with a combustion chamber at its lower end. Induction coils are provided along the length of the cylinder. The piston is formed at least in part of magnetic material and the piston return is effected by the force of gravity. Valves for exhausting combustion gases are provided in the lower part of the cylinder and the opening and closing of the valves is synchronized with the movement of the piston. The cylinder and piston are cooled appropriately. The generator may employ gasoline, heating oil, a gas fuel or explosive substance. | ||||||
| 168 | Liquid propellant velocity assistance system for guns | US112779 | 1980-01-17 | US4336741A | 1982-06-29 | William R. Baines |
| A liquid propellant velocity assistance mechanism for a gun in one embodiment includes separate gas operated injectors for metering liquid fuel and liquid oxidizer into the bore of the gun after it has been fired and before the projectile has left the barrel. Each injector has an inlet connecting the bore of the gun to a gas receiving cavity section. An outlet extends from the liquid receiving cavity section to the bore. A piston separates the two cavity sections and is slidably moveable to increase and decrease the volume of each section. A valve normally closes the outlet between the liquid receiving cavity and the bore and is openable in response to liquid pressure. The high pressure gas behind the projectile when the gun is fired flows into the gas receiving section and pushes against the piston to create such higher liquid pressure. The respective injectors inject liquid oxidizer and fuel into the bore of the gun behind the projectile such that the oxidizer and fuel are mixed within the bore and ignited by the presence of hot gasses from the initial explosion. The gas pressure behind the projectile is thereby increased such that the muzzle velocity of the projectile is increased. | ||||||
| 169 | Liquid propellant modular gun incorporating hydraulic pressurization of the case | US803442 | 1977-06-06 | US4161904A | 1979-07-24 | William Groen; Lester C. Elmore |
| A liquid propellant modular gun has a main cam which is driven at a multiple of the gun firing rate and which has internal cam surfaces operatively associated with the bolt while the bolt is driven forward to load and fire and backward to accept another projectile.The gun incorporates a control cam driven at the gun firing rate and effective to unlock the bolt after firing of a projectile so that the bolt can be returned to its rearward position under the control of the main cam.The main cam acts to time all the remaining mechanisms of the gun to the bolt motion.The accelerating force for the bolt is provided by hydraulic pressure applied directly to the bolt area.Energy stored in the bolt from the force of the accelerating hydraulic pressure is converted into rotary energy and is stored in the main cam and other rotating devices geared to the main cam.The stored rotary energy in the main cam is used in combination with residual gas pressure remaining in the gun barrel for a part of the bolt return stroke to accelerate the bolt rearward.Energy losses, including those caused by hydraulic pressure drop, friction and windage, are made up by a pumping system receiving its energy from the gas pressure added to the gun as a part of the firing of each projectile. | ||||||
| 170 | Gas rifle | US785101 | 1977-04-06 | US4109557A | 1978-08-29 | Charles D. Zaucha |
| A gas rifle which utilizes at least one combustible gas to drive the bullet and which includes a barrel and an associated combustion chamber with two gas storage containers and valve means for feeding gas at a controlled rate from gas supply cylinders into the combustion chamber. The rifle is provided with a pivoting breechblock and a piezoelectric crystal firing mechanism which ignites the gas or gaseous mixture in the combustion chamber by means of an electric spark upon pressing the trigger. Bullets may be fed into the breechblock in manual, semi-automatic or automatic mode of operation by a bullet feed linkage system in cooperation with a clip. A suitable recoil means can be utilized to permit semi-automatic and automatic modes of operation. | ||||||
| 171 | Rotary bolt liquid propellant gun | US800751 | 1977-05-26 | US4091711A | 1978-05-30 | Gary L. Petersen; John W. Holtrop |
| A liquid propellant gun loading, propellant injection and firing mechanismharacterized by a rotating breech block having a generally spherical contour. The breech block is intermittently rotated to and locked in sequential loading, fuel injection and firing positions. | ||||||
| 172 | Liquid propellant weapon system | US728355 | 1976-09-30 | US4051762A | 1977-10-04 | Eugene Ashley |
| A gun and ammunition system is provided which utilizes the difference in density between the combustion gases and the charge of liquid propellant as the source of energy for the injection of propellant into the combustion chamber. | ||||||
| 173 | Liquid propellant gun (recoilless regenerative piston) | US694870 | 1976-06-10 | US4043248A | 1977-08-23 | Melvin John Bulman; Alfred Rapp Graham |
| A liquid propellant gun has a combustion chamber which receives liquid propellant from a differential piston operating in a supply chamber, has a gun barrel for the discharge of a projectile, and a balancing nozzle for the discharge of combustion gas. The effective open cross-sectional area of the balancing nozzle is controlled by a plug coupled to the differential piston so that at the start of combustion the nozzle is substantially closed, is subsequently progressively opened in a controlled manner independent of the displacement of the projectile, and is finally fully opened or closed. | ||||||
| 174 | Liquid propellant gun (damper) | US694868 | 1976-06-10 | US4037995A | 1977-07-26 | Alfred Rapp Graham |
| A liquid propellant gun utilizes a differential piston having a plurality of bores through its head, which head divides the liquid propellant pumping chamber from the combustion chamber, and propellant supply means providing liquid propellant under pressure into said pumping chamber, which propellant under pressure both advances the piston to enlarge the pumping chamber and to decrease the combustion chamber and injects and atomizes a predetermined quantity of propellant through said bores from said pumping chamber into said combustion chamber, and a check valve which precludes flow of liquid propellant under pressure from said piston to said propellant supply means and damps said piston at the end of its combustion stroke. | ||||||
| 175 | Liquid propellant gun | US612817 | 1975-09-12 | US3992976A | 1976-11-23 | Bruce Bartels; John W. Holtrop; Larry L. Liedtke; Russell T. Trovinger |
| An injection system for a liquid propellant gun including coaxial flow vas giving complete mixing of two propellant components by convergent streams, wherein ullage is eliminated by closely contouring the valves with the gun chamber and the flow valves are automatically controlled by action of the propellant pump. | ||||||
| 176 | Direct injection liquid propellant gun system | US535339 | 1974-12-20 | US3969978A | 1976-07-20 | Kerry D. Seifert; Parker C. Smiley |
| A liquid propellant gun system which operates by the direct injection of a two-component hypergolic liquid propellant, i.e., a liquid oxidizer and a liquid fuel, into the combustion chamber in the gun to the rear of the projectile to be propelled. The preferred embodiment is an adaption of the inventive gun system for use as a rapid fire, small caliber, high muzzle velocity aircraft cannon system. As the hypergolic components come into contact and burn, the projectile is propelled forwardly through and out of the gun barrel by the resultant combustion gases. Unlike the prior art, the inventive system permits a significantly higher rate of fire of projectiles, eliminates the need for an igniter, prevents misfires and detonations, materially increases the reliability of the gun and the system thereof, and greatly reduces both the weight and the volume needed to house and to use the gun and the other components of the system. | ||||||
| 177 | Modular liquid propellant gun | US42257073 | 1973-12-06 | US3915057A | 1975-10-28 | BROXHOLM THOMAS M; ELMORE LESTER C |
| A gun of the kind in which liquid propellant is burned in the firing chamber to fire a projectile from the gun is constructed so that a number of gun modules can be combined in a modular gun. Each gun module is cam controlled, and a common cam is used to control each gun module in the modular gun. The cam can be a flexible cam having a belt configuration to permit the gun modules to be arranged in both circular groupings and in noncircular groupings, such as side by side. The modular gun includes fixed, non-rotating gun modules to eliminate the need for tangential velocity correction factors in the fire control and the need to accelerate the mass of the barrel assembly to operational speed. The individual gun module includes propellant injection mechanism for injecting propellant at high pressure when a non-hypergolic bi-propellant is used as the propellant. One or more hydraulic actuators are used to develop the high injection pressures and to operate other components of the gun, such as the bolt. The hydraulic actuators are also engaged with the cam to interlock the actuators and the controls for the actuators through the cam. A source of pressurized hydraulic fluid independent of the gun is used to power the actuators so that the weight and profile of the gun are kept to a minimum. The hydraulic system includes a compound spool control valve which operates in a dual mode to permit normal cyclic operation of the gun during firing and to maintain the gun in an open bolt condition during armed but non-firing operations. The hydraulic system includes a misfire detection mechanism and module shutdown valve which locks a misfired gun module in the closed bolt condition without the need to depressurize the hydraulic circuits of the other gun modules and without the need to include additional bypass circuits. The injection mechanism for injecting the bi-propellant includes two pistons which are yoked together and operated by a single actuator to inject the propellant into the firing chamber both in metered amounts and in a constant mix ratio. The pistons for injecting the bi-propellant include valves in the pistons, and the pistons are drawn through the fuel on retraction strokes of the pistons. The injection mechanism is retracted away from the firing chamber after the firing of a burst to isolate the propellant in the injection mechanism from the heat of the firing chamber. A rotary lock is mounted closely adjacent the bolt mechanism and engages a relieved area of the bolt in the locked position of the lock so that a quite small force on the lock will hold the bolt mechanism locked against high combustion chamber pressures tending to open the bolt.
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| 178 | Liquid propellant weapon | US17975971 | 1971-09-13 | US3803975A | 1974-04-16 | ELMORE L; BROXHOLM T |
| A small bore liquid propellant weapon fires projectiles transported to the firing chamber in a projectile carrier. The projectile carrier is separated from the projectile just prior to firing the projectile. The projectile carrier can be reconnected with the projectile to extract the projectile from the weapon in the event of a misfire. The small bore liquid propellant weapon has a reciprocating combustion chamber housing. The reciprocating combustion chamber housing forms a large diameter combustion chamber without ullage and eliminates a lock. The small bore liquid propellant weapon includes an integral magazine which has its own pump for the liquid propellant. The magazine also has a valve element with high pressure seals that operate only for the life of the magazine and that are discarded with the empty magazine.
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| 179 | High rate of flow port for spool valves | US3763739D | 1971-06-01 | US3763739A | 1973-10-09 | TASSIE DOUGLAS P |
| A feature of this invention is a spool valve which has a spool with an O-ring seal, said seal having a given longitudinal dimension, the spool operating in a bore in a housing to open and close a port opening into said bore, said port formed of a plurality of apertures, each aperture having a diameter, parallel to the longitudinal axis of said O-ring, which is smaller than said given longitudinal dimension of said seal.
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| 180 | Liquid propellant-actuated device | US3455202D | 1968-01-25 | US3455202A | 1969-07-15 | DIXON GLENN R; FINDLAY DAVID |
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