11results about "Marine torpedoes" patented technology

The application discloses a recovery control device for sinking mine training recovery, which comprises an ignition driving module, a depth sensor and a control module; the output port of the ignition driving module comprises a first ignition head, a second ignition head, a third ignition head and a fourth ignition head; the first ignition head and the second ignition head are connected in parallel, and the third ignition head and the fourth ignition head are connected in parallel; when the device adopts the mode of using a pyrotechnic product to open an air inlet valve to realize airbag inflation, the first ignition head and the third ignition head are connected to the same group of controls, and the second ignition head and the fourth ignition head are connected to the same group of controls; when the device controls airbag inflation by controlling the opening and closing of a solenoid valve, the first ignition head and the second ignition head are connected to the same group of controls, and the third ignition head and the fourth ignition head are connected to the same group of controls; the application can realize precise control of sinking mine floating recovery in sinking mine training, and improve the reliability of the control structure.

The utility model relates to the field of initiating explosive devices, and discloses an underwater pin pulling device which comprises a shell, a fixing pin, a piston, a lock cover, a buffering sleeve, first sealing rings, an exploder and a one-way sealing assembly, the cross section of the piston is arranged in a shape like a Chinese character'zhong 'and is connected in an inner cavity of the shell in a sliding mode, and the peripheral side of the piston is sleeved with the first sealing rings; the working end of the fixing pin is connected with the piston in an inserted mode, two air guide channels are reserved in the piston, the exploder is in threaded connection to the bottoms of the air guide channels, the one-way sealing assembly is in threaded connection to the tops of the air guide channels, the small-diameter end of the bottom of the piston is sleeved with the buffering sleeve, and the outer wall of the buffering sleeve is arranged in a taper angle mode. The lock cover is in threaded connection with the opening end of the bottom of the shell, a circular-truncated-cone-shaped groove is formed in the lock cover, and the large-diameter size of the circular-truncated-cone-shaped groove is matched with the small-diameter size of the buffering sleeve. The waterproof performance of the device is effectively improved, and meanwhile, the stable operation of the device is ensured by adopting the arrangement of the double exploders.

The invention discloses a high-strength and high-toughness aluminum alloy conical pipe fitting and a preparation method and application thereof, and belongs to the technical field of aluminum alloy deformation machining.The high-strength and high-toughness aluminum alloy conical pipe fitting is prepared by sequentially conducting two-stage homogenization treatment on an aluminum alloy cast ingot to obtain a homogenized cast ingot, conducting extrusion treatment on the homogenized cast ingot to obtain an aluminum alloy bar, and conducting reverse extrusion forging on the aluminum alloy bar to obtain the high-strength and high-toughness aluminum alloy conical pipe fitting. The high-strength and high-toughness aluminum alloy inclined-wall conical forge piece is successfully prepared by adopting a composite forming process of casting rod extrusion cogging, slitting, reverse extrusion die forging and heat treatment, and the high-strength and high-toughness aluminum alloy inclined-wall conical forge piece is excellent in comprehensive mechanical property and suitable for manufacturing torpedo shells; and the existing machining and welding process by using bars or plates is replaced, so that the utilization rate of materials is greatly improved.

Torpedo (1), wherein an explosive warhead (6) comprises three explosive components: a detonator (10) which receives an activation command; a booster explosive (11) which is detonated by the detonator (10); and a main explosive (12) which explodes following the explosion of the booster (11). The three explosive components (10, 11 and 12) are alternately available in a safety position in which any accidental detonation of the detonator (10) cannot operate the explosion of the main explosive (12) and in an arming position. An electronic control unit (8) or a circuit compares the current absorbed by the motor with a first lower current threshold Imot-low and a second higher current threshold Imot-high so as to carry out the following safety control operations of the warhead (6) if the intensity Imot of the measured current is lower than the first current threshold Imot-low or higher than the second current threshold, the generation and / or transmission of the activation command to the detonator (10) or the arrangement of the three components in the arming position is inhibited.

A nosepiece is provided with a recess or cup shape with internal dimensions that provides cavity suppression of a body entering an air and water interface. The nosepiece includes a circular portion with a diameter connectable to a nose of the body. The circular portion has a cylindrical first section and a cylindrical second section with the recess as the formed cup in the first section at a depth where the diameter and depth are selected based on a Weber number for the body such that a cavity is suppressed as the nosepiece and the body enter the air and water interface.

This invention belongs to the field of ammunition, specifically relating to a cross-medium reconnaissance and strike integrated "Flying Fish" biomimetic munition. The biomimetic munition is generally flat and spindle-shaped, including an aerodynamic body and a head shell weakly connected to the aerodynamic body. The head shell contains a composite damage warhead, and the aerodynamic body contains the ejector charge for the composite damage warhead. Retractable main wings and ailerons are symmetrically arranged on both sides of the aerodynamic body from front to back, and a tail fin is located at the rear of the aerodynamic body. The composite damage warhead forms an EFP penetrating jet and fragmentation damage units. This invention mounts a shaped charge composite damage warhead on a biomimetic munition, enabling both target penetration and large-scale damage to personnel and equipment. The penetration utilizes explosively formed projectiles, which have strong penetration capabilities and good effects. For damage, the coverage area of ​​EFP is limited; to increase the kill radius, a fragmentation component is added to the warhead.

To output gyro data satisfying a detection range and accuracy according to a change in a state of an airframe device.SOLUTION: The inertial device 100 includes a first inertial measurement unit 110 that generates first gyro data, a second inertial measurement unit 120 that generates second gyro data by a method different from that of the first inertial measurement unit, and an arithmetic unit 101 that compares the first gyro data and the second gyro data or refers to data other than the first gyro data and the second gyro data, selects one of the first gyro data and the second gyro data as selected gyro data, and supplies the selected gyro data to the body device 1.SELECTED DRAWING: Figure 1

To provide an underwater mine to defend a ship against a torpedo.SOLUTION: The invention provides an underwater mine with a net that clings to a torpedo and explodes. The underwater mine is attached and fixed to the net, and the net is opened underwater.SELECTED DRAWING: Figure 1

A high strength polymer-based cartridge has a polymer case with a mouth, a neck, a shoulder below the neck, and a body below the shoulder and having a case thickness (Tc). The body has a flat portion comprising a pull thickness (Tp), and a dip, closer to the shoulder than the flat portion and comprising a dip thickness (Tb). The cartridge can also include an insert attached to the polymer case opposite the shoulder. The insert can have a flat section contacting the flat portion and comprising an insert wall thickness (Ti), and a bulge engaging the dip to maintain the insert on the polymer case. Tc, Tp, Tb, and Ti are related by Tp+Tb+Ti=Tc. These variables also have ranges where Tp is at least 0.010 inches in thickness, Tb is greater than or equal to Tp, and Tc is a function of a loaded projectile.

Torpedo (1), wherein an explosive warhead (6) comprises three explosive components: a detonator (10) which receives an activation command; a booster explosive (11) which is detonated by the detonator (10); and a main explosive (12) which explodes following the explosion of the booster (11). When an impact with an obstacle is detected following the torpedo's entry into water and such an impact is detected at an instant is less than a limit value Tlim (T < Tlim), an inhibition circuit (27) is activated, which brings the torpedo into a safety state in which the explosive warhead is prevented from exploding.

Systems and methods are provided for using an additively manufactured vehicle, such as an UUV, with additively manufactured modules. The vehicle may be configurable such that additively manufactured modules or components may be detachably connected to the vehicle by hand, without the use of tools. Such modules may include connectors adapted to securely attach additional modules that may be detached by hand, without the use of tools. The additively manufactured modules may include ball bearings for rotating modules such as propellers and thrusters, and clips or tabs for detachable connection. The modules may include optical components for communications between a swarm of unmanned vehicles. Such optical modules for underwater vehicles may utilize nephelometry and / or turbidimetry to improve communications parameters based on scattered light measurements.