• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a method for repeatable initiation of propellant charges in a weapon system, for example when firing grenades from a barrel weapon, genomic electric discharge in a combustion chamber duct (3) comprising a combustion chamber core (30) where the filling gas in the combustion chamber channel (3) is ionized. , connected to a first high voltage generator (2), is energized with and thus increases the electrical conductivity in the combustion chamber duct (3) so that an electrical surge, through-electric discharge via a second high voltage generator (5) between a rear electrode (22) and a front electrode (21) , is generated and creates a power development with subsequent ionization of the surface of the combustion core blank (30), which means that hot ignition gas with plasma-like state is driven out of the combustion chamber duct (3). The invention also refers to a plasma generator therefor, as well as an ammunition unit comprising a said plasma generator. Fig. 1.
    公开号:SE1001194A1
    申请号:SE1001194
    申请日:2010-12-15
    公开日:2012-06-16
    发明作者:Denny Aaberg；Fredrik Olsson
    申请人:Bae Systems Bofors Ab；
    IPC主号:
    专利说明:

    15 20 25 30 35 lighter. Variable ignition energy means that the ignition energy can be adapted to different types and sizes of propellant charges, to vary the projectile's firing distance, and also to compensate for the propellant charge's temperature dependence.
    A parallel development to increase the firing speed of a weapon is to reduce the sensitivity to the fuel. Fuels of this type are called low-sensitivity, in English LOVA (LOW VulnerAbility). Low-sensitivity fuels are difficult to ignite, which reduces the risk of unintentional initiation of fuel in risk situations, for example when a combat vehicle is shelled by enemy fire. The reduced sensitivity also means increased demands on the teeth. The igniters must then generate an increased amount of energy and / or increased pressure to create the ignition process. The igniters normally consist of an easily initiated igniter and if the amount of igniter is increased, it is in direct opposition to the introduction of propellant of the LOVA type. In principle, ignition takes place through an ignition chain where a very small amount of sensitive igniter, called the primary set, for example lead azide, silver azide, is ignited by mechanical shock or electrical pulse. The primary batch then ignites the secondary batch of the lighter, usually black powder, initiating the propellant. By replacing the pyrotechnic lighter or the entire ignition chain with a plasma lighter, the system's sensitivity to accidental initiation is reduced. At the same time, increased dynamics are made possible to generate the stronger ignition pulses required to ignite low-sensitivity fuels (LOVA).
    Conventional lighters also include a logistical and technical problem. For barrel weapons that use propellant charges separated from the projectiles such as artillery and heavier ship cannons, a separate firing cartridge is often used to initiate the propellant charge. An ignition cartridge is used for each firing. Thus, a mechanical system mounted on the gun is required for storage, charging and removal of the ignition cartridge. By using plasma lighters, the logistical problems around the ignition cartridge are avoided. A common problem is that the ignition cartridge gets stuck in the cartridge position. The ignition cartridge expands when the weapon system is fired, after which the ignition cartridge wedges into the cartridge position and a fire interruption occurs. With the introduction of a plasma lighter, interruptions of fire are avoided and operational safety is increased.
    Plasma igniters for initiating propellant charges are described, for example, in U.S. Patent Nos. 5,231,242 (A) and 6,703,580 (B2). The plasma ends are based on the principle of exploding wires, ie an electrically conductive wire that is heated, gasified and partially ionized by an electric current. The disadvantage is that the wire 10 15 20 25 30 35 is consumed and must be replaced with a new one before each firing. The plasma igniter is thus of the disposable type.
    Repeatable plasma lighters are known, for example, from patent documents DE-103 35 890 (A1) and DE-40 28 411 (A1). The plasma igniters are based on the principle that an electrically conductive liquid is injected between two electrodes with an electrical potential difference, whereby the electrical circuit is short-circuited and generates a discharge and plasma generation. The use of liquids involves complicated devices for dosing and delivery as well as problems with possibly toxic, energetic or flammable substances. The use of liquids also requires complicated logistics for handling liquids.
    OBJECT OF THE INVENTION AND ITS FEATURES An object of the present invention is an improved method for repeatable initiation of propellant charges in a weapon system, where complicated dosing and supply of liquids between electrodes is avoided.
    A further object of the present invention is an improved plasma generator for repeatable initiation of propellant charges in a weapon system, where complicated devices for dosing and supplying liquids between electrodes are avoided.
    A further object of the present invention is an ammunition unit comprising said improved plasma generator.
    The said objects, as well as other objects not listed here, are met in a satisfactory manner within the scope of what is stated in the present claims.
    Thus, according to the present invention, there has been provided an improved method for repeatable initiation of propellant charges in a weapon system, for example when firing a grenade from a firing device, by electrically discharging into a combustion chamber channel comprising a combustion chamber blank.
    The method is characterized in that the neutral filling gas of the combustion chamber duct, which may be atmospheric gas or residual gas from the previous firing, is ionized via the high voltage potential that the ionization electrode, connected to a first high voltage generator, is energized with and thus increases the electrical conductivity in the combustion chamber. This ionization can start via surface flashover, volume flashover or a transition from surface flashback from bound charges in the surface of the combustion chamber blank which passes to volume flashover in the combustion chamber channel. Via a current generated by a second high-voltage generator between a rear electrode in the combustion chamber channel and a front electrode, the filling gas is further ionized and the subsequent power development increases the gas pressure in the combustion chamber and energy is emitted via recombination between free electrons and ions and neutrons that dissociate and ionize. surface. This surface thus emits gas to the combustion chamber duct, which further increases the pressure and adds further neutrals to the volume, which has a braking effect on the impedance collapse that occurs in the combustion chamber duct and increases the proportion of electrical power in the combustion chamber when the impedance does not go to zero. in open geometry. The pressure and temperature rise in the combustion chamber expel hot ignition gas with plasma-like and electrically conductive characteristics from the bushing of one tenninal to reach the fuel to be initiated.
    Furthermore, according to the present invention, there has been provided an improved plasma generator for repeatable initiation of propellant charges in a weapon system, for example when firing grenades from a barrel weapon, by electrical discharge in a combustor enclosure comprising a combustor channel and a combustor blank arranged in connection with a propellant charge.
    The improved plasma generator is characterized in that the plasma generator comprises an ionization electrode connected to a first high voltage generator for ionizing the filling gas in the combustion chamber duct, and a second high voltage generator arranged for electrical discharge in the electrically conductive gas so that hot ignition gas is formed under high pressure.
    According to further aspects of the improved plasma generator according to the invention; the electrical discharge from the second high-voltage generator takes place when the conductivity in the combustion chamber duct is sufficient to generate an electrical surge. that the ionization of the combustion chamber blank is synchronized in time to the electrical discharge from the second high voltage generator so that the electrical discharge via the second high voltage generator takes place only when the ionization voltage reaches its voltage maximum or 100 ps before or after the voltage maximum has been calculated. the ionizing electrode is fixedly arranged to the combustion chamber blank, the ionizing electrode being electrically insulated from the combustion chamber duct and electrically connected to the first high-voltage generator through a bushing electrically insulated from the combustion chamber enclosure. that the ionization electrode is fixedly arranged to the combustion chamber blank, the ionization electrode being in open contact with the combustion chamber duct and electrically connected to the first high-voltage generator through a bushing electrically isolated from the combustion chamber enclosure. that the rear electrode arranged on the rear end of the combustion chamber duct is electrically connected to the second high-voltage generator and that a front electrode is arranged on the front end of the burner duct duct, which rear and front electrode are made of an electrically conductive material, and that in the front electrode a gas outlet that opens towards the propellant charge. a t t the gas outlet is cone-shaped. The brake chamber blank is tubular and comprises a polymeric material having a resistivity exceeding 100 Ohm meters. a t t the combustion chamber blank is divided into fl your layers. The combustion chamber blank comprises a mixture of polymeric and metallic material.
    Furthermore, according to the present invention, there has been provided an improved ammunition unit comprising a grenade sleeve, a projectile, a propellant charge and an igniter, which igniter is constituted by a plasma generator.
    BENEFITS AND EFFECTS OF THE INVENTION Weapon systems can be lit more easily and safely with the proposed repeatable plasma generator. The avoidance of sensitive igniters and ignition cartridges means that full use of low-sensitivity propellants can be introduced. Problems with sensitive mechanics as a mechanism for changing the ignition cartridge or dosing equipment for liquids can be avoided. The technology entails increased control of the ignition pulse regarding parameters such as energy content, pulse length and ignition time. The ignition pulse can be adaptively adapted to the size of the propellant charge depending on the amount of propellant, the sensitivity of the propellant and the ambient temperature.
    LIST OF FIGURES The invention will be described in more detail below with reference to the accompanying figures, in which: Fig. 1 schematically shows a longitudinal section of a repeatable plasma generator according to the invention.
    Fig. 2 schematically shows an alternative embodiment of Figs. 1.
    Fig. 3 shows a detailed enlargement of the fuel core marine in Fig. 1.
    Fig. 4 shows a detail enlargement of the combustion chamber blank in Fig. 2.
    F ig. 5 schematically shows a perspective view of an ammunition unit comprising a plasma generator according to the invention.
    DETAILED DESCRIPTION OF THE EMBODIMENT The plasma generator 1 shown in Figure 1 comprises an outer casing in the form of a tubular and electrically conductive combustion chamber enclosure 20, preferably in a metallic material. The combustion chamber enclosure 20 is connected to a front electrode 21. Inside the combustion chamber enclosure 20 there is arranged a combustion chamber core 30 and an electrical insulator 23. The electrical insulator 23, which is preferably cylindrical, is mounted inside the combustion chamber enclosure 20 and acts as an electrical insulator between the combustion chamber enclosures. The electrical insulator 23 is an electrical and thermal insulation in the form of, for example, a dielectric, pressure and heat resistant polymer insert, ceramic insert, ceramic layer or other core unit, formed with a tubular portion enclosing the combustion blank 30 and a portion formed for in the combustion chamber channel 3 centered mounting of a rear electrode 22.
    The combustion chamber blank 30, preferably tubular, is mounted inside the electrical insulator 23 and forms the combustion chamber channel 3 of the plasma generator. The combustion chamber channel 10 extends axially through the plasma carrier between a front electrode 21 and the rear electrode 22. The front chamber of the combustion chamber channel 3, etc. the gas outlet 24 of the plasma generator 1 is preferably designed as a nozzle mounted or directly machined in the front electrode 21. The front electrode 21 is connected to electrical ground 4 and is in electrical contact with the combustion chamber enclosure 20. The rear electrode 22 is electrically connected to a high voltage generator 5, also called the second high voltage generator, and mounted in the electrical insulator 23. An ionizing electrode 7, completely or partially enclosing the combustion chamber channel 3, is connected to an external high voltage generator 2, also called the first high voltage generator, via a bushing 6 which is electrically insulated 8 from the combustion chamber enclosure 20. The combustion chamber 25 of the plasma generator 1 thus comprises the broth chamber enclosure 20, the electrical insulator 23, the front electrode 21, the rear electrode 22, the ionizing electrode 7, the electrical bushing 6 to the ionizing electrode, the electrical insulator 8 for the bushing 6 and the combustion chamber 3 0.
    The combustion chamber blank 30 comprises an open material arranged between the front electrode 21 and the electrical insulator 23, suitably in the form of a tube.
    The electrical insulator 23 and the combustion chamber enclosure 20 are mounted by screwing together. Thereafter, the combustion chamber blank 30 is mounted in the insulator 23, after which the front electrode 21 and the rear electrode 22 are screwed onto the combustion chamber enclosure 20, and onto the electrical insulator 23 with a certain force. By said measures, the combustion chamber blank 30 is xxerated in a predetermined manner, whereby the sensitivity of the plasma generator 1 to shocks and vibrations is largely eliminated.
    Figure 2 shows an alternative embodiment of the plasma generator where the main change compared to the embodiment in Figure 1 consists in the exposure of the ionization electrode 7 to the combustion chamber channel 3, without any electrical insulation of the combustion chamber blank 30 between the ionization electrode 7 and the combustion chamber channel 3.
    The combustion chamber blank 30 according to Figure 3 is preferably designed to be consumed in layers by successive combustion of three layer layers 32, 33 and 34 shown in Figure 3.
    Additional subject layers can of course occur. At each initiation, a layer is consumed, each new energy pulse against the surface of the body 31 exposed in the combustion chamber channel 3 gasifying the surface in whole or in part and generating a plasma created by the electrical discharge between the rear electrode 22 and the front electrode 21. The first pulse gasifies the blank layer 34, exposing the blank layer 33 to the combustion chamber channel 3. Thereafter, the next pulse will gasify the next layer 33 and so on.
    The gasification can take place in layers in both the axial direction and the radial direction, but can also take place through an increased consumption of material in front of the ionization electrode 7 and decreasing towards the front electrode 21 and the rear electrode 22. Other consumption methods are also possible. Fully or partially used combustion chamber blank 30 can easily be replaced with a new one if needed.
    The combustion chamber blank 30 can be designed by e.g. lamination technique where a certain number of layers or layers are joined together corresponding to the number of ignition pulses that the plasma generator 1 is dimensioned to generate. The combustion blank 30 can also be made of a homogeneous material or of homogeneous material in combination with lamination, or by sintering, pressing or other joining technique suitable for joining metallic and polymeric materials, the proportion of metallic material being in the order of 10-50% by weight. and the proportion of polymeric material is in the order of 50-90% by weight. Variation of the amount of energy to the plasma generator can also be used to gasify one or more of the layers in a laminated fuel core blank 30 or a varied mass in the fuel chamber blank 30 which is made of a homogeneous material.
    The filling gas in the combustion chamber duct 3 is ionized with the ionization electrode 7, which increases the conductivity and enables the very strong electrical energy pulse triggered by a fixed length, amplitude and shape between the front electrode 21 and the rear electrode 22, which causes the surface layer to be fully heated or partially gasified and ionized. , layered or layer by layer to plasma, won gas and hot particles thereby causing a predetermined plasma to da bleed out through the orifice opening 24 at a very high pressure and at a very high temperature and with a large amount of gas and hot particles.
    The fuel core blank 30 comprises at least one sacrificial material which decomposes into molecules, atoms or ions, at least in the plasma formed. Such a sacrificial material contains, for example, hydrogen and carbon. For the generation of hot particles, metallic materials in combination with, for example, hydrogen and carbon may also be part of the combustion chamber blank 30. The combustion chamber blank 30 in the described embodiments is comprised of at least one dielectric polymeric material, preferably a high melting temperature plastic (preferably above 150 ° C). gasification temperature (above 550 ° C, preferably above 800 ° C) and low thermal conductivity (preferably below 0.3 W / mK). Particularly suitable plastics include thermoplastics or thermosets, for example polyethylene, fluoroplastics (such as polytetraorethylene, etc.), polypropylene, etc., respectively polyester, epoxy or polyimides, etc. to provide only a surface layer or. layers 32, 33, 34 of the combustion chamber 30 are gasified for each energy pulse.
    The sacrificial material in the combustion chamber blank 30 should, preferably, also be sublimating, i.e. go directly from solid form to gaseous form. It is also conceivable to arrange different layers of material, thickness etc. to a laminated combustion blank 30 to effect said layered 32, 33, 34 gasification of the laminate in the combustible blank 30 Or to combine metallic and / or polymers by sintering, pressing or other joining techniques. material for a combustion chamber blank 30 to effect said layerwise 32, 33, 34 gasification of the laminate in the combustion chamber blank 30.
    The inner and outer radii of the combustion chamber blank 30 are so calculated, dimensioned and manufactured that only the outermost, i.e. the surface of the combustion blank 30 exposed from the combustion chamber duct 3, between the front electrode 22 and the rear electrode 21 facing free, the surface layer or bearing 32, 33, 34 is gasified at each electrical pulse. Optimally, the combustion chamber blank 30 must be consumed at the last plasma generation intended for the plasma generator 1.
    Since the consumption of the combustion chamber blank may be dynamically variable between each use, depending on the design "of, for example, the propellant, the projectile, the ambient temperature or the nature of the target, the combustion chamber blank 30 is manufactured to a certain margin to function within the possible applications.
    An alternative design of the combustion core is shown in Figure 4, where the ionization electrode 7 is in open contact with the combustion chamber channel 3. In this case, ionization of the surface will take place in both the axial and radial directions out of the center electrode. In order to avoid that the electrical energy pulse between the rear electrode 22 and the front electrode 21 passes through the ionization electrode 7, the circuit is provided with a protection circuit, not shown in the figure, between or inside the high voltage generator 2 and the ionization electrode 7.
    Figure 5 shows a sleeve-equipped ammunition unit 13 with integrated plasma generator.
    The plasma generator 1 is mounted in a cartridge case 10, together with a propellant charge II and a projectile 12. The propellant charge II may be, for example, a solid powder comprising at least one charge unit in the form of one or more cylindrical rods, disks, blocks, etc. The charging units are multiperforated with a larger number of burn channels so that a so-called multi-hole gunpowder is obtained. Alternative embodiments of the propellant charge 11 are of course possible.
    FUNCTIONAL DESCRIPTION The operation and use of the plasma generator 1 according to the invention is as follows.
    During firing, the first high voltage generator 2 connected to ionizing electrode 7 is caused to emit a high voltage pulse for creating ionization of the fill gas in the combustion chamber channel 3, when the degree of ionization is such that plasma generation can be initiated then the second high voltage generator 5 is energized. current and / or a high voltage, both with a certain determined amplitude and pulse length adapted to the current characteristics of the weapon in question, the temperature, the propellant charge, the projectile, the target environment, etc. The impedance of the plasma generator 1 is at active state, i.e. during plasma generation, which is why a high current is preferably generated from the second high voltage generator 5, in the order of 10 - 100 kA, in order to succeed in over-ignition, however, a high voltage, in the order of 4 - 10 kV, is required. To provide an efficient plasma, for over-ignition of the propellant bed, each energy pulse should exceed 1 kJ, but can amount to 30 kJ, and is supplied to the plasma with a pulse length of between 1 us - 10 ms.
    The strong electrical energy pulse will generate an electrical flux, hereinafter also called arc discharge, between the rear electrode 22 and the front electrode 21, in the plasma channel created by the arc discharge it becomes such a high temperature that the outermost surface layer / layer of the combustion blank 30 melts. gasified and finally ionized to a very hot plasma. In an alternative embodiment, a substance supplied to the combustion chamber channel 3 may be a part of the substance which forms plasma in connection with the arc discharge. Generated plasma-like gas is caused, due to the high pressure generated by the gasification in the combustion chamber channel 3, to be ejected through the gas outlet 24, which gas outlet 24 is formed as a nozzle. Pulse length, pulse shape, current and voltage can be varied according to current conditions at the time of firing, such as ambient temperature, humidity, etc. and for the special weapon system and ammunition and projectile type type properties and the current target type, including the distance to said target. 10 15 20 25 30 ll EMBODIMENT EXAMPLE An example of a plasma generator according to the invention, intended for use in an artillery system as a replacement for a conventional ignition cartridge is the combustion chamber enclosure 20 in the order of 30-60 mm and in this an electrical insulator 23 arranged and, inside the electrical insulator 23, a combustion chamber blank 30 of various polymeric materials and thicknesses. Said combustion chamber blank 30 was here specially dimensioned for thicknesses of about 1-10 mm, whereby layered gasification of the combustion chamber blank was achieved at an energy pulse of about 1-10 kJ with a duration of a few milliseconds and the voltage in the range 5 - 10 kVolts. Current in the range 1 - 50 kA. Distance between front electrode 21 and rear electrode 22 in the order of 20 - 100 mm.
    ALTERNATIVE EMBODIMENTS The invention is not limited to the specially shown embodiments but can be varied in various ways within the scope of the claims.
    It will be appreciated, for example, that the number, size, material and shape of the elements and details included in the ammunition unit and the plasma generator are adapted to the weapon system or design features and other design features currently available.
    It will be appreciated that the ammunition design described above may include fl your different dimensions and projectile types depending on the area of use and barrel width. The above, however, refers to at least the most common grenade types today of between about 25 mm - 160 mm.
    In the embodiments described above, the plasma generator comprises only a front gas outlet, but it is within the inventive concept to arrange such openings along the surface of the combustion chamber duct or openings in the front opening 24.
    The plasma generator is repeatable but can also be used in a single-use version, for example in an ammunition application, lighter for a combat part or initiation of rocket engines.
    权利要求:
    Claims (12)
    [1]
    Method for repeatedly initiating propellant charges in a weapon system, for example when firing grenades from a barrel weapon, by electrical discharge in a combustion chamber duct (3) comprising a drain chamber chamber (30), characterized in that the filling gas in the combustion chamber duct (3) is ionized the high voltage potential with which the ionization electrode (7), connected to a first high voltage generator (2), is energized and thus increases the electrical conductivity in the combustion chamber duct (3) so that an electrical surge, by electrical discharge via a second high voltage generator (5) between a rear electrode (22) and a front electrode (21), are generated and create a power development with subsequent ionization of the surface of the combustion chamber blank (30), which means that hot ignition gas with plasma-like state is driven out of the combustible core channel (3).
    [2]
    Plasma generator (1) for repeatable initiation of propellant charges in a weapon system, for example when firing grenades from a barrel weapon, by electrical discharge in a combustion chamber enclosure (20) comprising a combustion chamber channel (3) and a combustion chamber blank (30) arranged in connection to a propellant charge (11) characterized in that the plasma generator (1) comprises an ionization electrode (7) connected to a first high voltage generator (2) for ionizing the filling gas in the combustion chamber duct (3), and a second high voltage generator (5) arranged for electrical discharge in the electrically conductive gas so that hot ignition gas under high pressure is formed.
    [3]
    Plasma generator (1) according to claim 2, characterized in that the electrical discharge from the second high voltage generator (5) takes place when the conductivity in the combustion chamber duct (3) is sufficient to generate an electrical surge.
    [4]
    Plasma generator (1) according to one of Claims 2 to 3, characterized in that the ionization of the combustion chamber blank (30) is synchronized in time to the electrical discharge from the second high-voltage generator (5) so that the electrical discharge via the second high-voltage generator (5) occurs only when the ionization voltage reaches its voltage maximum or 100 ps before or after the voltage maximum calculated from the voltage maximum.
    [5]
    Plasma generator (1) according to one of Claims 2 to 4, characterized in that the ionization electrode (7) is fixedly arranged to the combustion chamber blank (30), the ionization electrode (7) being electrically isolated from the combustion chamber channel (7). 3) and electrically connected to the first high voltage generator (2) through a bushing (6) electrically insulated from the combustion chamber enclosure (20) (6).
    [6]
    Plasma generator (1) according to one of Claims 2 to 5, characterized in that the ionisation electrode (7) is fixedly arranged to the combustion chamber blank (30), the ionisation electrode (7) being in open contact with the combustion chamber duct (3) and electrically connected to the first high voltage generator (2) through a bushing (6) electrically isolated from the combustion chamber enclosure (20) (6).
    [7]
    Plasma generator (1) according to one of Claims 2 to 6, characterized in that the rear electrode (22) arranged on the rear end of the combustion chamber (3) is electrically connected to the second high-voltage generator (5) and that it is arranged on the front end of the combustion chamber channel. a front electrode (21), which rear and front electrodes are made of an electrically conductive material, and that a gas outlet (24) is arranged in the front electrode (21) which opens towards the propellant charge (11).
    [8]
    Plasma generator (1) according to claim 7, characterized in that the gas outlet (24) is conical.
    [9]
    Plasma generator (1) according to one of Claims 2 to 8, characterized in that the combustion chamber blank (30) is tubular and comprises a polymeric material with a resistivity exceeding 100 Ohm meters.
    [10]
    Plasma generator (1) according to one of Claims 2 to 9, characterized in that the combustion chamber blank (30) is divided into layers.
    [11]
    Plasma generator (1) according to any one of claims 2 to 10, characterized in that the combustion chamber blank (30) comprises a mixture of polymeric and metallic material.
    [12]
    Ammunition unit (13) comprising a grenade sleeve (10), a projectile (12), a propellant charge (11) and an igniter (1), characterized in that the igniter (1) is constituted by a plasma generator (1) according to any one of requirements 2-1 1.
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    引用文献:
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    US4640180A|1985-06-20|1987-02-03|The United States Of America As Represented By The Secretary Of The Navy|Gun-firing system|
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    FR2807611B1|2000-04-11|2002-11-29|Giat Ind Sa|PLASMA TORCH COMPRISING ELECTRODES SEPARATED BY A GAP AND IGNITOR INCORPORATING SUCH A TORCH|
    SE524623C2|2002-08-08|2004-09-07|Bofors Defence Ab|Insulated cartridge sleeve and ammunition, procedure for the manufacture of such sleeves and ammunition, and the use of such sleeves and ammunition in several different weapon systems|
    SE533831C2|2005-03-15|2011-02-01|Bae Systems Bofors Ab|Plasma lighters for an electrochemical-chemical cannon, bullet gun or other firearm weapon of similar type|
    SE532628C2|2008-04-01|2010-03-09|Bae Systems Bofors Ab|Plasma generator comprising sacrificial material and method of forming plasma as well as ammunition shot including such plasma generator|SE536256C2|2011-12-29|2013-07-23|Bae Systems Bofors Ab|Repeatable plasma generator and method therefore|
    SE544051C2|2019-12-20|2021-11-23|Bae Systems Bofors Ab|Plasma generator as well as ammunition unit and launching device containing said plasma generator|
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    优先权:
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    MYPI2013701004A| MY161800A|2010-12-15|2011-11-30|Repeatable plasma generator and a method therefor|
    PCT/SE2011/000217| WO2012082039A1|2010-12-15|2011-11-30|Repeatable plasma generator and a method therefor|
    US13/993,585| US9377261B2|2010-12-15|2011-11-30|Repeatable plasma generator and a method therefor|
    EP11848738.8A| EP2652429B1|2010-12-15|2011-11-30|Repeatable plasma generator and a method therefor|
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