摘要:
An accelerator, having a sealed end and a nozzle, is connected to a projectile. The accelerator is used to provide an additional acceleration to the projectile. The accelerator may be detachably or non-detachably connected to the bottom surface of the projectile. The accelerator may have a bullet like form and may be utilized in a single or a multiple projectile cartridge.
摘要:
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. An endcap may be deployed within a tube of the ram accelerator device to prevent incursion of formation pressure products such as oil, water, mud, gas, and so forth into a guide tube of the ram accelerator. During operation the projectile penetrates the endcap and at least a portion thereof impact a working face. In some implementations a purge gas may be used to form a ullage between the endcap and the working face.
摘要:
A vehicle for launching from a gas gun having a housing; preferably incorporating a precessional attitude control system; and utilizing a flared base, fins, or active use of the attitude control system during passage through the atmosphere. Subtly canting the fins can produce desired spinning of the vehicle. The propulsion system can employ liquid, hybrid, or solid fuel. A removable aero-shell assists atmospheric flight with thermal protection being provided by anticipated ablation, an ablative aero-spike, or transpirational cooling. And a releasable sabot enhances the effectiveness of the launch.
摘要:
A cartridge assembly (10) for firearms or weapons, said cartridge assembly including a support body (11) having a central longitudinal channel (16) housing a plurality of projectiles (20, 22, 24) in end-to-end orientation and having a plurality of circumferential chambers (14), wherein each chamber houses (14a, 14b, 14c) at least one propellant charge (12a, 12b, 12c) and is located adjacent to a respective projectile; fluid communication means (18) included in the support body for communicating the products of a gaseous expansion of said propellant from a respective chamber (14) into said central longitudinal channel (16); whereby, upon initiation of a selected propellant charge (12a, 12b, 12c), the communicated products of gaseous expansion from a circumferential chamber force or eject a respective projectile (20, 22, 24) from the cartridge assembly (10). The propellant charges may comprise a volume of propellant material encased in a bag with an igniter.
摘要:
A cartridge assembly (10) for firearms or weapons, said cartridge assembly including a support body (11) having a central longitudinal channel (16) housing a plurality of projectiles (20, 22, 24) in end-to-end orientation and having a plurality of circumferential chambers (14), wherein each chamber houses (14a, 14b, 14c) at least one propellant charge (12a, 12b, 12c) and is located adjacent to a respective projectile; fluid communication means (18) included in the support body for communicating the products of a gaseous expansion of said propellant from a respective chamber (14) into said central longitudinal channel (16); whereby, upon initiation of a selected propellant charge (12a, 12b, 12c), the communicated products of gaseous expansion from a circumferential chamber force or eject a respective projectile (20, 22, 24) from the cartridge assembly (10). The propellant charges may comprise a volume of propellant material encased in a bag with an igniter.
摘要:
The construction and arrangement of the projectile bearing surface interfaces rearward and forward of a recessed surface chamber of the projectile interface conjointly with the interfaces of bore wall areas segmented by recessed bore chambers which in conjunction effect the deployment/transport/dispersement/development/modulation and transformation of explosive propellant charges sequentially primed and activated rearward and forwardly of the projectile along the bore and in bore wall chambers captively converting high static gas pressure to expansively relieved dynamic propellant gas pressure directly at the projectile reducing firearm barrel recoil while energizing projectile movement along the bore in a closed-system of thermodynamic propellant energy for free flight purposes.
摘要:
A tube launched rocket system which uses a plurality of small propellant charges located within the tube to propel the rocket. The charges form part of the outer wall of a traveling propulsion chamber. The rest of the chamber is substantially defined by a propulsion housing, which includes a forward plate that abuts the projectile, and an aft nozzle for venting gases from the interior of the chamber. Alternative embodiments also contain baffles for directing the flow of combustion gases, and may employ an electronic ignition system for igniting the propellant charges in sequence. As charges adjoining the propulsion chamber are ignited, the resulting combustion gases thrust into the interior of the chamber, forcing the housing forward as they flow aftward through the nozzle. As the propulsion housing travels through the tube, additional propellant charges are ignited as they effectively become part of the outer wall of the propulsion chamber. The housing pushes the projectile ahead of it through the tube. Use of a sequence of small propellant charges in the tube rather than a conventional rocket motor in the projectile makes the system's noise level manageable, permits the use of nontoxic propellant compositions, and eliminates the risk that a user will be burned by rocket motor exhaust as the projectile exits the tube. The teachings of the present invention also apply to closed breech systems.
摘要:
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.
摘要:
A round for placement and firing in the barrel of a large caliber gun, the round comprising a cartridge case defining a cylindrical chamber having axially opposed open and closed ends, a plurality of axially-adjacent annualr explosive charges coaxially-disposed in the chamber, the charges defining a bore coaxial with said chamber and each charge being shaped to generate on detonation a predetermined shock wave in the case, a projectile disposed in the chamber proximate the closed end, the projectile having a trailing end shaped to convert shock waves generated by detonation of the annular charges to projectile acceleration, an explosive in the case for initially propelling the projectile axially through the bore toward the open, end, an electrical detonator for each annular charge responsive to an electrical signal, and a power source and circuit for generating the electrical signal in response to axial movement of the projectile in the bore.
摘要:
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.