Igniter

FIELD: electricity.

SUBSTANCE: device includes a tubular body rigidly coupled to the axial sleeve of the initiator, the igniter capsule of which, engaged with the point of the external firing mechanism, is installed in the central fire-transfer channel above the receiver connected through reversible communication channels to the drainage windows of the body, geometrically closed with the opposite end flange of the executive shell. The multilayer pyro-powder shell equipment consistently contains of end-burning charges: smoky rifle powder, the main and reinforcing, adjacent to the exit nozzle of shell. The main charge of executive shell equipment represents a set of layers of slowly burning pyrotechnic compositions. The reinforcing charge is made of ignition enhancer composition and equipped with a charge hollow facing the exit nozzle. The ignition charge of executive shell equipment is predominantly made of spark-formed pyrotechnic composition.

EFFECT: igniter operation is ensured with high precision of combustion thermodynamic mode of it shell equipment with precise accuracy of time delay from initiating an igniter capsule to enhanced spark-formed torch on the executive charge of the main device, expanding scope.

2 cl, 2 dwg

 



 

Same patents:

FIELD: blasting operations.

SUBSTANCE: in the first embodiment of the detonation triode, consisting of the detonation channel with two inputs and the partition adjacent to it, separating the channel from the triggered explosive charge, the partition is a separator made in the form of stick of the explosive composition of less sensitivity than the explosive composition of the channel, with dimensions insufficient to trigger the stick at unilateral passage of the detonation along the channel within the size of the stick. In the second embodiment of the detonation triode, consisting of the detonation channel with two inputs and the partition adjacent to it separating the channel from the triggered explosive charge, the partition is a separator made in the form of a package of perpendicular to the axis of the channel alternating plates of the explosive composition and of the inert material. The thickness of each plate of the explosive composition is insufficient to trigger it at unilateral passage of the detonation along the channel, and the thickness of each inert plate is sufficient to trigger detonation in adjacent plates of the explosive composition in collision in front of its end of the detonation waves coming from the inputs of the channel.

EFFECT: increase in reliability, reduction of time of transmission of detonation, increase in accuracy of the calculation of time of the detonation triode through the use of a single detonation physico-chemical process.

4 cl, 2 dwg

Hand grenade // 2512051

FIELD: weapons and ammunition.

SUBSTANCE: hand grenade includes fuse with fuse actuator element. The fuse includes at least six microelectromechanical structures. The structures consist of coaxial series of silicon crystal with cantilever needle formed inside, silicon crystal with doped hydrogen and solid oxidant with 50 mcm thick porous layer are, heat-conducting monocrystalline silicon crystal, and silicon crystal with porous layer area of at least 60 mcm thickness, mounted on a glass substrate. The substrate features a hole in the central part. Heat conductivity rate of heat-conducting element is higher than heat conductivity rate of silicon crystal with porous layer area of at least 60 mcm thickness. Microelectromechanical structures are mounted on revolver drum and attached in a frame. The frame is built in a case with vacuum inside. Fuse actuator element includes button with needle, coaxial to cantilever needle and connected to fuse axis by a nut.

EFFECT: increased specific volume of brisant explosive in a standard grenade.

5 dwg

FIELD: arms manufacturing.

SUBSTANCE: ammunition contains a casing housing an explosive substance, a point proximity fuse for triggering bursting-type ammunition that comprises a casing housing: a power-supply source, a detonator, a safety-and-arming mechanism, an electronics module connected with the above mechanism and the target detector equipped with at least two electrodes divided by a dielectric insert that constitute a part of the fuse casing. The external electrode is shaped as a part of the fuse casing, while the inner electrode is shaped as a body of revolution, mostly as a blunt-nosed cone, and is located inside the above insert. The electrical insulating insert thickness h is established based on the ratio: h ≥ 1/10 L, where: L - length of the external surface element of the point electrode in the meridian section, wherein the electronics module comprises a sensitive element of the environment dielectric conductivity sensor.

EFFECT: enhanced efficiency of bursting-type ammunition application due to the optimization of the moment of action alongside with enhanced resistance to mini-interferences.

1 dwg, 2 dwg

FIELD: arms manufacturing.

SUBSTANCE: method of triggering a fuse containing a casing housing a target detector connected to the electronics module and equipped with at least two electrodes divided by a dielectric insert is based on target detection and is associated with an alteration of dielectric conductivity of the environment the sensitive area of the sensor. The sensitive area of the target sensor is previously adjusted according to the dielectric conductivity of the environment, protecting the target sensor from interference by choosing the correct thickness of the ammunition shroud made of electroinsulating material. The ammunition is accelerated, then the electronics module is energized thus inducing the sensor's input capacity alteration by changing the dielectric conductivity of the environment in the sensitive area of the sensor and the blasting impulse is formed. The thickness of the ammunition shroud h is established based on the ratio: h ≥ 1/10 L, where: L - length of the external surface element of the point electrode in the meridian section.

EFFECT: enhanced fuse application, provision of triggering a proximity fuse at the optimum distance from the target with high precision alongside with enhanced fuse resistance to mini-interferences.

1 cl, 1 dwg

FIELD: arms manufacturing.

SUBSTANCE: method of triggering a fuse containing a casing housing a target detector connected to the electronics module and equipped with at least two electrodes divided by a dielectric insert is based on target detection and is associated with an alteration of dielectric conductivity of the environment the sensitive area of the sensor. The sensitive area of the target sensor is previously adjusted according to the dielectric conductivity of the environment, protecting the target sensor from interference by choosing the correct thickness of the ammunition shroud made of electroinsulating material. The ammunition is accelerated, then the electronics module is energized thus inducing the sensor's input capacity alteration by changing the dielectric conductivity of the environment in the sensitive area of the sensor and the blasting impulse is formed. The thickness of the ammunition shroud h is established based on the ratio: h ≥ 1/10 L, where: L - length of the external surface element of the point electrode in the meridian section.

EFFECT: enhanced fuse application, provision of triggering a proximity fuse at the optimum distance from the target with high precision and resistance to mini-interferences.

1 cl, 1 dwg

FIELD: weapons and ammunition.

SUBSTANCE: method for improving interference immunity of nose proximity fuse for explosive-action weapons containing the housing in which there arranged is power supply, target detector connected to electronics unit and having at least two electrodes separated with dielectric insert consists in decrease of threshold of target detector sensitivity to small-size interference. One of the electrodes, which is external one, is made in the form of the part of fuse housing, and the other electrode, which is internal one, is made in the form of rotation body, mainly flattened cone, and arranged inside the above insert made from electrical insulating material for protection of target detector against action of small-size interference. Fuse fairing thickness h is determined from the ratio: h ≥ 1/10 L, where: L - length of generatrix of outer surface of head electrode in meridional section.

EFFECT: invention allows increasing the fuse resistance to action of small-size interference and enlarging the application of fuses.

2 cl, 1 dwg

FIELD: weapons and ammunition.

SUBSTANCE: device includes the housing in which power supply, detonator, safety cocking mechanism, electronics unit connected to the above mechanism and target detector having at least two electrodes separated with electrical isolating insert being the part of the fuse housing is arranged. One of the electrodes, which is external, is made in the form of the part of fuse housing, and the other electrode, which is internal, is made in the form of body of rotation, mainly of flattened cone, and arranged inside the above insert; at that, thickness h of electrical insulating insert is according to the ratio: h≥1/10 L, where: L - length of generatrix of outer surface of head electrode in meridional section, and electronics unit includes detection device of variation of medium dielectric permeability in the detector sensitivity zone.

EFFECT: invention allows enlarging the application of fuses, providing proximity detonation of weapon at optimum distance from the target with high accuracy and increasing the stability of weapon to action of small-size interference.

1 dwg

Contact device // 2380654

FIELD: weapons and ammunition.

SUBSTANCE: proposed fuse contact device comprises outer contact representing a projective nose faring and inner contact mating the outer contact shape and arranged concentrically with a clearance with respect to outer contact. Nose fairing is furnished with hollow current conducting aerodynamic needle with rear end face arranged in fairing chamber. Inner contact is fixed on aforesaid end face along aerodynamic needle outer side on dielectric bush. Inertial contact element representing a metal core with its rear end face arranged on the base with clearance with respect to needle wall and connected, via conductor, with inner contact is attached inside needle nose part and on dielectric shaped base with rated break axial and radial forces.

EFFECT: higher reliability and expanded operating performances.

1 dwg

The contact device // 2206061
The invention relates to weapons, namely the contact devices of the electric fuses of shells and rockets

FIELD: demolition works.

SUBSTANCE: invention relates to the field of measurement of parameters of operation of initiators of detonation of explosives during the demolition works, namely electric detonators (ED) comprising a nonprime blasting cap (CD) based on brisant explosives (BE) and standard electric igniter (EV) with rigid or elastic fastening of a resistance bridge. The device for measurement of parameters of operation of the nonprime blasting cap in the blasting electric detonator comprises a muffle for blasting of the electric detonator on a lead plate, a unit of resistance bridge actuation by direct or pulse currents, a response time measuring instrument with starting of time reference point from the moment of actuation, the ionisation sensor for registration of detonation, the ionisation sensor for registration of the moment of operation of electric igniter, unit of registration of signals from sensors and supply of signal to the response time measuring instrument.

EFFECT: design of the device allows to provide completely complex measurement of all parameters of operation of the blasting cap of both non-prime, and prime types as a part of the blasting electric detonator, for the first time within one test.

3 cl, 1 dwg, 1 tbl

FIELD: weapons and ammunition.

SUBSTANCE: igniter tube of electric impact action consists of a metallic body, in which there arranged is an electric ignition device, an igniter capsule of impact action, an internal obturating assembly with a movable cone-type valve, a combination primary charge consisting of a pyrotechnical amplifier and smoke military rifle and preferably large-grain powder and a sealing plug. In the tube body there is an antechamber in the form of a cone-type cavity free from all structural elements.

EFFECT: creation of an igniter tube structure providing failure-free function of an artillery complex in a wide range of firing pressures, automatic ramming and unhampered extraction of ignition devices, which is capable of igniting both a complete set of modules, and modules of propellant powder charge, which separately stand at the shell bottom.

3 cl, 1 dwg, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to field of high-accuracy systems of detonation, detonators with electronic delay and can be applied in composition of non-electric systems of detonation, systems of initiation based on shock-wave tubes (SWT), in initiation of detonation systems for carrying out blasting operations in mining industry, soldering, mass salute pyrotechnics, MES and others. Highly accurate detonator with electronic delay for SWT consists of case closed from one side, from other side connected to chock-wave tube, circuit of time delay, condenser, igniter and electromagnetic generator, placed between outlet of shock-wave tube and inlet of time delay circuit. Generator includes cover, frame, permanent magnet and coils, coiled on frame.

EFFECT: invention is directed at obtaining inexpensive, reliable, hermetic, safe under influence of shocks and vibration, unreceptive to electromagnetic noises, programmed detonator of digital delay, which is activated by wave-conductor impulses.

6 cl, 7 dwg

FIELD: electrical engineering.

SUBSTANCE: invention may be used as part of nonelectric explosion systems, initiation systems based on impact wave tubes (IWT) etc. the programmable digital delay module consists of a housing containing a sensor key galvanically connected to the electronic delay unit power supply and the ignitor having an IWT input fixture. The housing has a cover, fixing the power supply and the electronic delay unit, as well as a an input fixture for the second IWT initiated by the ignitor triggering. The power supply is placed inside the housing after programming and connection to the start IWT while the second IWT linking into the second input fixture is performed immediately at the moment of the initiated object charging.

EFFECT: invention enables creation of a safe design for a device for commutation and initiation of an electric decelerator ensuring IWT initiation with its motion pulse delay.

2 cl, 1 dwg

Delay cap // 2367888

FIELD: blasting jobs.

SUBSTANCE: proposed delay cap generates detonation pulse when preset time expires proposed device comprises a barrel accommodating main charge of high-explosive charge (HE), sleeve with through hole to house combustion transformer, insert with retarding composition and igniter. Incendiary charge is arranged between aforesaid igniter and insert, while, aforesaid between insert and sleeve, diaphragm with through two-step hole filled with igniting composition is arranged with its minor diametre facing the insert. Insert with retarding charge represents a steel tube with end flanges to form circular space between the barrel inner wall and tube outer wall. Note here that between the flanges and barrel a minimum positive allowance is provided.

EFFECT: higher stability and safety.

2 cl, 1 dwg, 1 ex

FIELD: armaments.

SUBSTANCE: invention relates to initiators. Proposed primer cap comprises a casing representing metal closed cartridge closed, on its one side, with igniter. The other side of the said cartridge has the secondary explosive charge. Between aforesaid sides, a retarding cylindrical element is arranged provided with pyrotechnical composition stack and an initiator. At least one point-like or circular dent are arranged between the igniter and retarding element on the cartridge to form ledges in contact with the end face of the said retarding element that has a lengthwise through channel. Aforesaid retarding element can be press-fitted into the cartridge and made up of a tubular insert partially or completely press-fitted against the stop into metal cap. The said cap has an igniting orifice with diametre smaller than that of pyrotechnical composition column.

EFFECT: higher reliability of operation.

29 cl, 7 dwg, 7 ex

FIELD: weapons.

SUBSTANCE: invention relates to initiating device and serves to protect detonating device against untimely operation. Proposed device comprises housing accommodating electric igniter connected to current feed device, pyrotechnical stop, primer cap. The housing incorporates additional cavity with skewed wall accommodating contact plate connected with current feed element, current-conducting ball and combustion chamber. Aforesaid housing consists of two rigidly-jointed-together parts, one being made from insulating material and the other one being made from current conductor. Note here that there is additional inertial igniting device arranged in previously mentioned housing to interact with the cavity of current-conducting housing. The said cavity communicates, via channel, with combustion chamber arranged in the said current-conducting housing. The through hole arranged parallel to insulating housing axis receives additional electric igniter. Aforesaid pyrotechnical stop represents spring-loaded slider.

EFFECT: reliable operation of safety-detonating device.

3 cl, 9 dwg

FIELD: explosive works.

SUBSTANCE: safety-detonating device contains the case with a cavity in which the electroigniter connected by isolated electricity cables with elements of the current feedthrough, the pyrostop is established, a cap-detonator and the combustion chamber. In the case the additional cavity with an oblique wall in which the contact plate connected by the isolated electricity cable with an element of the current feedthrough and a current-carrying ball is installed. The case is executed from two parts rigidly connected among themselves, one of which is executed from the isolating material, and another - from the current-carrying. The electroigniter is established in a cavity of the case from the isolating material which is connected to a cavity of the case from the current-carrying material. In the case from the isolating material the through aperture parallel to a vertical axis, in which the additional electroigniter is placed, it is connected by isolated electricity cables with fed-through current elements. The pyrostop is executed in a kind of the spring-actuated cursor established in a groove of the case from the current-carrying material and a cross-section flute executed on its lateral surface with oblique walls and coaxial with it by a through aperture in which the cap-detonator is established. The device contains the lock rod which one end face is executed rounded and resting against a cross-section flute of a cursor, and the second - in the form of a flange and is drawn in by the powder charge placed in a cavity of the cylindrical case, executed with ring groove on its external surface and with through radial apertures in a zone of the ring groove. The ring groove and through radial by apertures are placed in the combustion chamber, and the aperture in a cursor is executed not coaxial with an aperture in the case from isolating a material.

EFFECT: reliability of operation of the device increases.

9 dwg

FIELD: explosive works.

SUBSTANCE: cap-detonator with an electronic delay contains the case in which are placed an igniter, electronic unit of detonation delay, primary and secondary explosives, knot of initiation and a sensor, the delays placed before electronic unit. Thereat the sensor is executed with possibility of transformation of an impulse from an initiation and transfer source to its electronic knot of a delay which is programmed for certain time of a delay. Thus the sensor is executed with possibility of inclusion of electronic knot of a delay in the form of the photogauge or a temperature-sensitive element.

EFFECT: simplification of operation and cost reduction.

1 dwg

FIELD: weapons.

SUBSTANCE: group of inventions is related to the field of blasting equipment. Method is suggested for ignition of propellant charge in chamber of artillery piece barrel with caseless loading and device for its realisation. Method includes placement of metal initiators in propellant charge and radiation of metal initiators during shooting by electromagnet field of SHF-range with their heating up to temperature of propellant charge ignition. Metal initiators are made either from threads having length equal to half of radiation wave length, or from resonance annular elements with rupture and are installed in propellant charge in the form of bundles with their distribution along the whole volume of charge. Radiation of metal initiators bundles during shooting by electromagnet field of SHF-range is performed simultaneously by means of standing electromagnet wave.

EFFECT: provision of reliable ignition of charge and multiple use of initiation system, to improve conditions of charge functioning due to reduction of non-simultaneity of its different sections ignition.

4 cl, 6 dwg

FIELD: blasting operations.

SUBSTANCE: the electronic detonators are positioned in a system of electronic detonators, the mentioned detonators are coupled to the control unit via a busbar. The blasting command or the test blasting command is send from the control unit to the detonators, which start the reverse time reference of delay that is stored in each detonator, in the point of synchronization that is delayed relative to the indicated command. At completion of the reverse time reference the detonators cause, in case of a blasting command, a blast, and in case of a test blasting command, production of a response in the point, where they would be burst if the blasting command would have been used. The delayed synchronization makes it possible to check and control the detonators after the mentioned command was received. The invention contains also a similar method in the system of a great number of subordinate control units, connected to which are a great number of detonators, and the main control unit, the system is controlled by the commands of the main control unit.

EFFECT: minimized risk of nonoperating detonators and eliminated risk of random blasting.

29 cl, 7 dwg

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