35results about "Marine torpedoes" patented technology

Projectile launch apparatus (20) for use in a fluid environment. The apparatus (20) comprises a launch tube (21) having a supercavitating projectile (24) with cavitator (29) received within the launch tube (21). A means for generating expulsion gas (not visible) is arranged to provide expulsion gas to propel the projectile (24) from the launch tube (21), with means for bleeding expulsion gas (31, 32) being provided to bleed a portion of expulsion gas around the projectile (24). This allows expulsion gases to contribute to the formation of the gas cavity around the supercavitating projectile (24) as the projectile (24) is launched from the launch tube (21). Particularly suited to the deployment of supercavitating projectiles underwater, such as in underwater mine disposal applications.

A tandem charge for prosecution of underwater targets includes both a precursor charge (PC) and a follow through charge (FTC) oriented within and along an axis of a charge casing with the FTC positioned in front of the precursor charge. The precursor charge includes an explosive charge and a liner configured such that upon detonation of the explosive charge the liner forms an annular explosively formed penetrator (EFP) that is projected along the axis and passes around the FTC to cut a first hole in an outer surface of the target. The FTC is configured to be carried through the first hole in the outer surface of the target by the flow of water therethrough for detonation on the other side of the outer surface of the target, perhaps forming a second hole in an inner surface of the target.

The invention discloses a modular foldable grid rudder device driven by a single driving link and applied to attitude adjustment of a cylindrical launching navigation body, and relates to the technical field of underwater launching navigation bodies. The problems that an existing grid rudder structure is complex in control, the reliability of the variant process is poor, a traditional mechanism is prone to damaging the power appearance, and the existing grid rudder structure cannot be applied to a cylindrical navigation body are solved. Base assembly spaces vertically communicated with an inner cavity of a mounting base are arranged on the lower portions of grid rudder storage spaces, each grid rudder storage space is provided with a grid rudder folding module, grid rudders of the grid rudder folding modules are matched with the grid rudder storage spaces in shape, and folding and unfolding and variable attack angle driving mechanisms are embedded in the base assembly spaces. The folding, unfolding and variable attack angle driving mechanism is movably connected with the grid rudder so as to achieve the functions of folding, unfolding and variable attack angle of the grid rudder. The grid rudder follows the modular design principle and can serve as a middle section module to be mechanically and electrically connected with a navigation body to bear the action execution function.

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.

Disclosed is a hybrid electric torpedo comprising: a combustion chamber (130) defining an aperture; and an igniter (138) having a resistance, a current source, and a contactor. The igniter includes a housing having terminals configured to receive electrical conductors, and a unitary ignition element (134) having ends conductively joined with the terminals and having an ignition element material composition, the igniter including an Inconel hermetic coating that encapsulates the unitary ignition element and including an Inconel hermetic seal formed to join the aperture.

The invention relates to the technical field of steering engines, in particular to a linear steering engine suitable for a torpedo, which comprises a motor, a front shell, a rear shell and a lead screw shaft, the motor is mounted on the front shell; the front shell and the rear shell are in butt joint with each other; a nut is screwed on the lead screw shaft, and a main straight gear is fixedly sleeved outside the nut; the two ends of the nut are installed on the front shell and the rear shell through angular contact bearings respectively. A planetary transmission assembly is arranged in a cavity jointly formed by the front shell and the rear shell, and the motor is in transmission with the main straight gear through the planetary transmission assembly. An auxiliary straight gear is arranged in an inner cavity jointly formed by the front shell and the rear shell, and the auxiliary straight gear is meshed with the main straight gear; a gear shaft is integrally formed in the center of the auxiliary straight gear; a hexagonal counter bore is formed in the left end face of the gear shaft, the left half section of the gear shaft is installed on the front shell, and the left end face of the gear shaft is in an exposed state. The linear steering engine can achieve the purpose of manually adjusting the axial position of the lead screw shaft.

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.

A monolithic attitude control motor frame includes a monolithic structure including an outer surface of revolution and a plurality of side walls defining a plurality of cavities extending radially from the outer surface of revolution. Adjacent cavities of the plurality of cavities share a side wall or side wall portion therebetween. Each of the cavities is configured to receive an attitude control motor. A monolithic attitude control motor system includes a monolithic frame including an outer surface of revolution and a plurality of side walls defining a plurality of cavities extending radially from the outer surface of revolution. The system further includes a plurality of attitude control motors corresponding to the plurality of cavities, such that an attitude control motor of the plurality of attitude control motors is disposed in each cavity of the plurality of cavities.

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

Disclosed is a kit (100) of parts configured to form an effector. The kit comprises a modular kinetic / non-kinetic effect component (102) that is connectable to at least one further modular component (104) to configure the effector for use in one of a plurality of different use cases. Also disclosed are a modular effector system and a method of forming an effector.

Provides mines to protect ships from torpedoes. [Solution] The mine has a net and explodes after entangling with a torpedo, the mine being attached and fixed to the net, and the net being characterized by opening under the water surface.

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.

Provides mines to protect ships from torpedoes. [Solution] The mine has a net and explodes after entangling with a torpedo, the mine being attached and fixed to the net, and the net being characterized by opening under the water surface.

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

The invention provides a multi-stage elastic load reduction head cap and method applied to underwater entry of a navigation body, the load reduction head cap comprises a first-stage warhead, a first-stage load reduction mechanism, a second-stage load reduction mechanism and a main body structure, the first-stage load reduction mechanism comprises a first shell, a thin spring and a locking device, and the second-stage load reduction mechanism comprises a second shell, a thick spring and a damper; the outer edge of the tail end of the first-stage warhead is connected with one side of the first shell, and the other side of the first shell sleeves one side of the outer wall of the second shell and can slide along the outer wall of the second shell; the other side of the second shell is connected with the main body structure; one end of the fine spring is connected with the middle part of the tail end of the first-stage warhead; the two ends of the locking device are connected with the first-stage warhead and the second-stage connecting body The second-stage connecting body is slidably connected to the inner wall of the second shell and connected with one side of the damper. One end of the thick spring is connected with the other side of the damper, and the other end is connected with the main structure. According to the method, two-stage collaborative reduction of the water entry impact load can be achieved, and the energy dissipation efficiency is improved while the structural integrity is guaranteed.

The invention discloses an underwater vehicle resonance type icebreaking device which comprises an icebreaking bomb, an impact mechanism and an adjusting mechanism, one end of a cylinder is connected with one end of a shell, a first driving part is arranged at the other end of the shell, an output shaft of the first driving part is connected with a propeller, and the first driving part is used for driving the propeller to rotate; the impacting mechanism comprises a shaft body and a second driving piece, the shaft body is arranged in the cylinder in a sliding and penetrating mode, the second driving piece is arranged in the shell, an output shaft of the second driving piece is connected with one end of the shaft body, and the second driving piece is used for driving the shaft body to slide so as to impact the cylinder; the adjusting mechanism comprises an acceleration sensor and a controller, the acceleration sensor is fixedly connected with the cylinder, the controller is fixedly arranged in the shell, and the acceleration sensor and the second driving piece are electrically connected with the controller. The problems that submarine ice breaking mainly depends on the structural strength and a power system of a submarine, ice breaking is achieved by directly impacting an ice layer, efficiency is low, and energy consumption is high are solved.

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 tandem charge for prosecution of underwater targets includes both a precursor charge (PC) and a follow through charge (FTC) oriented within and along an axis of a charge casing with the FTC positioned in front of the precursor charge. The precursor charge includes an explosive charge and a liner configured such that upon detonation of the explosive charge the liner forms an annular explosively formed penetrator (EFP) that is projected along the axis and passes around the FTC to cut a first hole in an outer surface of the target. The FTC is configured to be carried through the first hole in the outer surface of the target by the flow of water therethrough for detonation on the other side of the outer surface of the target, perhaps forming a second hole in an inner surface of the target.

A tandem charge for prosecution of underwater targets includes both a precursor charge (PC) and a follow through charge (FTC) oriented within and along an axis of a charge casing with the FTC positioned in front of the precursor charge. The precursor charge includes an explosive charge and a liner configured such that upon detonation of the explosive charge the liner forms an annular explosively formed penetrator (EFP) that is projected along the axis and passes around the FTC to cut a first hole in an outer surface of the target. The FTC is configured to be carried through the first hole in the outer surface of the target by the flow of water therethrough for detonation on the other side of the outer surface of the target, perhaps forming a second hole in an inner surface of the target.

Disclosed is a kit of parts configured to form an effector. The kit comprises a modular kinetic / non-kinetic effect component that is connectable to at least one further modular component to configure the effector for use in one of a plurality of different use cases. Also disclosed are a modular effector system and a method of forming an effector.

A tandem charge for prosecution of underwater targets includes both a precursor charge (PC) and a follow through charge (FTC) oriented within and along an axis of a charge casing with the FTC positioned in front of the precursor charge. The precursor charge includes an explosive charge and a liner configured such that upon detonation of the explosive charge the liner forms an annular explosively formed penetrator (EFP) that is projected along the axis and passes around the FTC to cut a first hole in an outer surface of the target. The FTC is configured to be carried through the first hole in the outer surface of the target by the flow of water therethrough for detonation on the other side of the outer surface of the target, perhaps forming a second hole in an inner surface of the target.

The invention discloses a gas evolution dipolar plate and application thereof, and relates to the technical field of electrochemistry, the gas evolution dipolar plate is in a whole plate shape, independent anode area units formed by insoluble oxygen evolution electrode materials are uniformly distributed on the active surface of the plate, and the bottom of each independent anode area unit is fixed on an anode collector plate; a cathode region formed by an insoluble hydrogen evolution electrode material is arranged on the periphery of the independent anode region unit, and the anode region unit and the cathode region are separated through an insulating diaphragm; the top of the anode collector plate is provided with a screw hole for connecting a power supply anode; and the cathode region is provided with a screw hole at the top of the plate for connecting the cathode of the power supply. The gas evolution dipolar plate is high in gas evolution efficiency, fast in adjustment response, good in corrosion resistance, good in energy conversion efficiency and capable of precipitating gas with adjustable quantity.

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.

An optimization method for a multi-gas generator with variable-depth launch, which is disclosed by the present invention, belongs to the field of weapon launch. The implementation method of the present invention is as follows: According to the load launch constraint conditions and index requirements, optimize the loading conditions, nozzle throat diameter and the number of gas generators, so that a load with a specified mass, diameter and length can obtain a specified muzzle velocity under different launch depth conditions, and the acceleration of the load in the launch tube does not exceed the allowable value; flexibly adjust the number of working gas generators according to the variable-depth range to achieve variable-depth launch in a wide range; the synchronous ignition of the gas generators can avoid multiple pressure peaks generated during sequential ignition, and the load velocity increases steadily during the overall ejection process; the charge with area-increasing combustion adopts time-matching design to reduce the pressure peak value and narrow the deviation range of the load muzzle velocity. The multi-gas generator with variable-depth launch includes a launch tube, a load, a gas generator group, a gas generator, a nozzle, a circular plug, a charge and an ignition charge.

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