17results about "Ventillation systems" patented technology

A barrel cooling system for a weapon includes a corrosion prevention cylinder between a barrel and cooling fins arranged around the cylinder.

A machine gun comprising a gun housing; a rotor assembly positioned within the gun housing; a barrel cluster including a plurality of barrels extending forward from the rotor assembly; one or more vents providing a path for expulsion away from the rotor assembly of gases emanating from a cartridge chambered in one of the plurality of barrels; and one or more of a rotor lock mechanism, a feed mechanism, a delinking and transfer mechanism, a searing mechanism, a drive system, a self-contained hardware barrel clamp, a threaded adapter barrel clamp, integrated mounts, and / or multiple feed inlet locations.

An insulated handguard rail panel insert with an elongated aperture that extends through the entirety of the component allowing for the passage of any fluid media past a barrel, gas-system, or any other internal thermally conductive parts of a firearm. The rail panel is designed to be placed within an attachment section of a firearm handguard by firmly pressing it down, causing the engagement fins to contact the interior surface of the handguard. Once installed, the insert acts as a thermally insulating barrier between the thermally conductive metal handguard and the user. It securely attaches to a firearm without the need for any additional manufacturing processes such as the addition of fasteners, cams, bolts, or other hardware in which the method of retention does not impede or obstruct the flow of fluid media through the elongated aperture.

Disclosed is a cannon including: a barrel having a chamber in which a shell and a propelling charge are mounted; a breech ring connected to the rear of the barrel, and having a shell inlet communicating with the chamber; a recoil buffer disposed on an outer circumferential surface of the barrel, and guiding recoiling and returning motions of the barrel; a breechblock connected to the breech ring, and moving relative to the breech ring between a closed position closing the shell inlet and an open position opening the shell inlet; a laser ignition device including a laser portion disposed in the breechblock and emitting a laser to ignite the propelling charge, and a breech window covering the laser portion and allowing the laser to be transmitted into the chamber; and a breech window cleaning device cleaning the breech window.

The invention discloses a low-temperature thermoplastic light weapon quick reloading and firing device, which belongs to the technical field of firearm accessories arranged on a carrying device, and comprises an assembly base, the assembly base is connected with a support frame body, the front part and the rear part of the support frame body are respectively and fixedly provided with a low-temperature thermoplastic module, and a steering engine module is arranged in an area between the two low-temperature thermoplastic modules; the steering engine module is connected to the outer surface of the supporting frame body through the position adjusting assembly. The supporting frame body is provided with a pressing assembly. The low-temperature thermoplastic module comprises a sinking cavity shell, the sinking cavity shell is provided with a bearing receding groove, a low-temperature thermoplastic shell is arranged in the sinking cavity shell in a matched mode, a heating bag is arranged in the low-temperature thermoplastic shell, an opening of the sinking cavity shell is covered with an elastic heat insulation film in a sealed mode, and the pressure applying face of the pressing assembly perpendicularly acts on the outer surface of the elastic heat insulation film. The low-temperature thermoplastic module is arranged at the corresponding clamping position of the assembly base, and the phase change characteristic of a low-temperature thermoplastic material is utilized, so that the quick reloading and firing device can be quickly reloaded through simple and convenient operation, and the flexible requirement of a battlefield is met.

The invention is a cooling block that is added to a semi-automatic rifle to improve the cooling of the barrel. The cooling block is designed to fit into an air-cooling shroud and sit tightly against the gun barrel. The tolerances for the contact surface between the cooling block and the outer gun are critical for optimal cooling, and the block is designed for easy replacement to provide more continuous cooling.

A cooling device for a gun barrel has a muzzle assembly. The muzzle assembly has a shaft, a baffle, a turbine assembly, a compressor assembly, and a rotary drive tube. The rotary drive tube connects the turbine assembly to the compressor assembly. A heat exchanger may be releasably connected to the cooling device. A diffuser or muzzle device may be arranged downstream of the turbine assembly.

The invention relates to the technical field of heat exchange devices, and particularly discloses a cylinder wall circulating water temperature rising and falling control device which comprises a launching cylinder, a fixing sleeve is fixedly connected to the outer surface of the launching cylinder, a flow guide groove is formed in the inner side of the fixing sleeve in an embedded mode, and a flow limiting assembly is arranged in the flow guide groove in the upper side. The flow limiting assembly comprises a baffle fixedly connected with the inner surface of the flow guide groove, a guide plate is fixedly connected to the inner surface of the flow guide groove, a sealing plate is slidably connected to the inner surface of the flow guide groove, a through hole is formed in the outer surface of the sealing plate, and the outer surface of the guide plate is in sliding contact with the through hole. By arranging the flow limiting assembly, circulating water can uniformly enter each group of overflow grooves without being influenced by the angle of the launch canister, the flowing uniformity of the circulating water can be effectively improved, the temperature of the canister wall of the launch canister is kept consistent, and therefore the temperature control precision of the launch canister can be improved, and the service life of the launch canister is prolonged. And the temperature control effect of the launch canister can be further improved.

The invention belongs to the technical field of artillery barrels, and aims to solve the problems of reduced shooting precision and shortened service life caused by thermal deformation of a barrel. According to the barrel liquid cooling device with the built-in composite special-shaped micro-channels, a high-heat-conduction coating layer is attached to the outer wall of a gun barrel in a coating mode, and at least two special-shaped micro-channels are formed in the portion, corresponding to the gun body section of the gun barrel, of the high-heat-conduction coating layer in the length direction of the high-heat-conduction coating layer; all the special-shaped micro-channels are arranged in an array mode in the thickness direction of the high-heat-conduction coating layer, a first cavity and a second cavity which are communicated with the special-shaped micro-channels are formed in the portions, corresponding to the gun tail section and the gun muzzle section of the gun barrel, of the high-heat-conduction coating layer correspondingly, and a liquid inlet of cooling liquid is communicated with the liquid inlet ends of all the special-shaped micro-channels through the first cavity. And the liquid outlet of the cooling liquid is communicated with the liquid outlet ends of all the special-shaped micro-channels through the second cavity. The device adopts a method of combining a special-shaped micro-channel with a high-thermal-conductivity material, so that the radial heat transfer speed of the body tube is accelerated, and the cooling effect is improved.

A machine gun comprising a gun housing; a rotor assembly positioned within the gun housing; a barrel cluster including a plurality of barrels extending forward from the rotor assembly; one or more vents providing a path for expulsion away from the rotor assembly of gases emanating from a cartridge chambered in one of the plurality of barrels; and one or more of a rotor lock mechanism, a feed mechanism, a delinking and transfer mechanism, a searing mechanism, a drive system, a self-contained hardware barrel clamp, a threaded adapter barrel clamp, integrated mounts, and / or multiple feed inlet locations.

The utility model relates to the field of ammunition launching, in particular to a heat dissipation protective shell for an ammunition locking device seat, which comprises a protective shell, the radiator is installed on the left side of the protective shell, the cooling fan is arranged in the radiator, the cooling fins are arranged at the positions, corresponding to the cooling fan, of the left side of the interior of the protective shell, and the cooling fins are arranged on the left side of the interior of the protective shell. The right end of the cooling fan penetrates through the radiator and the protective shell to be connected with the left sides of the cooling fins, and a limiting sleeve is arranged on the right side in the protective shell. According to the utility model, the heat dissipation protection assembly is arranged, so that the bullet locking device seat in the protection shell can be quickly cooled and dissipated, and the problems that the follow-up use of the bullet locking device seat is influenced by high temperature generated by high-speed friction after ammunition is launched due to the lack of the heat dissipation protection assembly of a common bullet locking device seat, and the service life of the bullet locking device seat is influenced are solved. And the service life of the bullet locking device seat is shortened.

An insulated handguard rail panel insert with an elongated aperture that extends through the entirety of the component allowing for the passage of any fluid media past a barrel, gas-system, or any other internal thermally conductive parts of a firearm. The rail panel is designed to be placed within an attachment section of a firearm handguard by firmly pressing it down, causing the engagement fins to contact the interior surface of the handguard. Once installed, the insert acts as a thermally insulating barrier between the thermally conductive metal handguard and the user. It securely attaches to a firearm without the need for any additional manufacturing processes such as the addition of fasteners, cams, bolts, or other hardware in which the method of retention does not impede or obstruct the flow of fluid media through the elongated aperture.

A barrel cooler includes a first shroud having a first sidewall and an aperture through a portion of the first sidewall. A second shroud includes a second sidewall and is configured to connect to the first shroud. The second shroud includes a plurality of openings through the second sidewall. A fan assembly is mounted to a bottom of the first shroud at the aperture. The fan assembly includes a fan and is configured to direct air through the aperture in the first shroud. A baffle plate is secured within the first shroud to a side of the aperture opposite the second shroud.

The present invention comprises a body (2), at least one launcher (3) located on the body (2) and used to attack the target, and more than one barrel (301) located on the launcher (3) and used to guide the ammunition to the target by firing the launcher (3), at least one tank (4) on the body (2) in which fluid (A) is stored, and at least one line (5) on the tank (4), one end of which is connected to the tank (4) and the other end to the launcher (3) and which allows the fluid (A) to be directed from the tank (4) to the launcher (3).

The invention relates to a barrel (10) for launching device (1), whereas the barrel (10) is arranged with a bore (20) for the launching of projectiles (100) with a propellant charge (110), whereas the barrel (10) is arranged with at least one cavity (12, 14, 16), whereas a substance for storing thermal energy is arranged in said at least one cavity (12, 14, 16). The invention further consists of an ejection device and a method for storing thermal energy in a barrel.

Modular Munition Launching Device Including a Pyrotechnic Jet Mitigation Device for Munitions. The modular munitions (20) launching system (1) comprises at least one munitions receiving chamber (4) forming at least one firing channel (18) for a munition (20) emitting a pyrotechnic jet (24) in a longitudinal direction (L). The modular system further comprises at least one mitigation device (32). This mitigation device (32) comprises at least one jet-breaking element (35) arranged to separate the pyrotechnic jet (24) from the munition (20) into at least two sub-jets (35), each extending in a direction different from the other sub-jet (35) and from the longitudinal direction (L). Figure for abbreviation: 4

A firearm can have a bolt having a plurality of locking lugs that are configured to have a shear area that is larger than that of a standard M16 / M4. A bolt carrier can have a bolt that has a double cut cam having an unlocking cam surface that has sufficient dwell increase to delay a start of unlocking when the bolt carrier is used in an M4 carbine. A stepped extractor pin may be provided that prevents disengagement of the extractor pin. A tube can be configured to provide gas from a barrel of the firearm to the piston via the carrier key. The tube can have a heat radiator formed from triangular shaped threads on at least a portion of the tube. A piston on the bolt and can have a plurality of rings including pairs of mating rings that are formed and maintained as a matched pair.