EP0718591B1 - Ignition device for propellant charges and manufacturing method for such an ignition device - Google Patents
Ignition device for propellant charges and manufacturing method for such an ignition device Download PDFInfo
- Publication number
- EP0718591B1 EP0718591B1 EP95118183A EP95118183A EP0718591B1 EP 0718591 B1 EP0718591 B1 EP 0718591B1 EP 95118183 A EP95118183 A EP 95118183A EP 95118183 A EP95118183 A EP 95118183A EP 0718591 B1 EP0718591 B1 EP 0718591B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ignition
- fact
- accordance
- support tube
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003380 propellant Substances 0.000 title claims description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000010410 layer Substances 0.000 claims description 34
- 239000000843 powder Substances 0.000 claims description 33
- 239000000203 mixture Substances 0.000 claims description 24
- 239000002904 solvent Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 239000000020 Nitrocellulose Substances 0.000 claims description 14
- 229920001220 nitrocellulos Polymers 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 13
- 229920003023 plastic Polymers 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000002344 surface layer Substances 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 8
- 229920002678 cellulose Polymers 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 5
- 239000004922 lacquer Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- PZIMIYVOZBTARW-UHFFFAOYSA-N centralite Chemical compound C=1C=CC=CC=1N(CC)C(=O)N(CC)C1=CC=CC=C1 PZIMIYVOZBTARW-UHFFFAOYSA-N 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- 125000005498 phthalate group Chemical class 0.000 claims description 2
- 230000009974 thixotropic effect Effects 0.000 claims description 2
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 claims 5
- 239000004902 Softening Agent Substances 0.000 claims 3
- -1 acetone nitrile Chemical class 0.000 claims 2
- 229910052782 aluminium Inorganic materials 0.000 claims 2
- 239000004411 aluminium Substances 0.000 claims 2
- 229920001131 Pulp (paper) Polymers 0.000 claims 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 claims 1
- 239000006260 foam Substances 0.000 description 25
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- 239000008188 pellet Substances 0.000 description 6
- 230000001535 kindling effect Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 229920003043 Cellulose fiber Polymers 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 239000004604 Blowing Agent Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/38—Separately-loaded propellant charges, e.g. cartridge bags
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/085—Primers for caseless ammunition
Definitions
- the invention relates to an ignition system for propellant charges according to the preamble of claim 1.
- the invention relates further relates to a method for producing such Ignition systems.
- DE 42 23 735 A1 discloses a low-pressure ignition system in particular for modularly structured propellant charges of large calibres Ammunition known to achieve short ignition times the individual propellant charge modules each have a perforated support tube made of a combustible material which encloses an axial ignition channel. On the propellant powder facing side is an ignition transfer charge intended.
- This essentially consists of Propellant pellets, each with a very thin Ignition mixture of about 1/10 mm from in nitrocellulose bound black powder are coated.
- the pellets coated with the ignition mixture are a combustible low pressure pipe, e.g. a shrink tube, arranged.
- the support tube in addition to the actual ignition transfer charge on its inside and outside with a thin layer of the igniter mixture mentioned above be coated.
- the present invention is based on the object To create ignition system, which is multi-part for lighting Charge structures is suitable for a short implementation time Ignition of the propellant charge is simple and inexpensive can be produced. Furthermore, a method of manufacture is said to of such an ignition system are disclosed.
- the invention is based on the idea of Ignition transfer charge not coated with an ignition mixture Pellets to use, but a 1.0 to 3 mm use thick pyrotechnic composite rigid foam layer which is largely coarse-pored in structure (Sponge structure).
- the relatively thin propellant powder and surface layers facing the support tube should, however, preferably be tightly closed as an integral layer to the required protection of the rigid foam layer to ensure against moisture and water.
- Such a hard foam layer according to the invention ensures a safe, even at low temperatures, fast and reproducible ignition of the propellant powder.
- the ignition transfer of the rigid foam Surprisingly, relatively independent of its structure (e.g. the degree of porosity, the skin characteristics, the local density fluctuations etc.). This means that to the parameters for the production of rigid foam and its structure in terms of temperature, pressure and drying time etc. no high-precision demands are made have to.
- the ignition system according to the invention has proven to be particularly advantageous proven when the pyrotechnic rigid foam Addition of cellulose and / or plastic fibers contains. On the one hand, this addition increases the strength and therefore the mechanical stability of the rigid foam is significantly increased. On the other hand, the use of such enables Fibers also work with coarse-grained black powder. While for example when using the in DE 42 23 735 A1 Ignition mixture described for the application of a uniform Film on the support tube or on the propellant pellets the black powder only grain sizes of maximum 0.1 mm may have in the layer according to the invention the grain sizes of the black powder are up to 1.5 mm. Nevertheless results from the use of granular black powder a hard foam layer, which has a high internal strengthening of the Has black powder and firmly on the respective support tube is liable.
- the big advantage of using a coarse-grained black powder is that the loose distribution of the relative large black powder grains in the foam structure with their large grain surface at the moment of ignition and at the moment of flame transmission on the propellant powder with hardly increased Provide ambient pressures for the greatest liveliness values.
- the cellulose or Plastic fiber content of the foam between about 0.2 and 5 % Should be.
- the fiber content should preferably be approximately 1-3% by weight.
- the inventive method is characterized in that First, nitrocellulose (NC) dissolved in an NC solvent becomes. Then that which is insoluble in the NC solvent becomes Cellulose and / or plastic fiber mixture introduced into the solution and distributed homogeneously in it. Then after that Black powder and possibly other additives, for example a plasticizer, mixed and homogeneous in the solution can be distributed, the ignition mass composed in this way either directly on the support tube or on a separate one Shaped body applied and preferably at temperatures between 30 to 60 ° C and a slight negative pressure dried be so that the solvent evaporates and thereby inside the desired coarse-pored and porous structure as well creates a coherent surface film on the surfaces.
- NC nitrocellulose
- the method according to the invention has i.a. the advantage that Production of the rigid foam does not use a separate blowing agent must be because the solvent has this role takes over.
- nitrocellulose especially vinyl wool with a Proven nitrogen content of 11.5 to 12.5% nitrogen.
- solvent power of Highly nitrided nitocelluloses can also be used for shooting cotton (Nitrogen content> 13%) are used.
- NC solvent which also take on the role of blowing agent should have, among others, acetone, acetonitrile and various esters or ketones and suitable mixtures as proven suitable.
- a cellulose-fiber mixture can be used with good Successful cotton sinter or kraft pulp can be used.
- soft grain types are preferred usable, including those that differ Have compositions of the basic form, so not contain only 75%, but also 77% or 80% potassium nitrate.
- Dibutyl phthalate and other phthalates have become plasticizers proven as well as centralite which the otherwise relatively hard Make the structure of the foam more elastic and pliable.
- Fig. 1, 1 can be used in large-caliber guns Propellant charge module (see e.g. EP 0 306 616 B1), which essentially consists of a container 2 for Inclusion of propellant powder 3 known per se.
- a free ignition channel 4 is provided for a central ignition provided that the side of a support tube 5 from a combustible material is limited.
- the support tube 5 there are a plurality of openings 6.
- a pyrotechnic composite rigid foam layer 7 with an essentially three-layer structure (FIG. 2) is arranged on the side of the support tube 5 facing the propellant charge 3 as an ignition transfer charge.
- the surface layer 8 facing the propellant charge powder and the surface layer 9 facing the support tube 5 are each sealed (ie the density should be> 1 g / cm 3 ) and offer protection against moisture possibly penetrating into the rigid foam.
- the inner layer 10 lying between the surface layers 8 and 9 has a relatively porous and coarse-pored foam structure (ie the foam density should be between 0.4 and 0.9 g / cm 3 ).
- the surface of the support tube 5 facing the ignition channel 4 covers a thin pyrotechnic lacquer layer (ignition layer) 11.
- the hot ignition gases in ignition channel 4 ignite there both the pyrotechnic lacquer layer 11 and the openings 6, the surface layer 8 and then the coarse-pore Inner layer 10 with its ignitable black powder grains.
- Nitrocellulose is used to manufacture the pyrotechnic rigid foam (NC) (e.g. lacquer wool with a nitrogen content between 11.5% and 12.5% or shooting cotton with one Nitrogen content above 13%) in a solvent (e.g. acetonitrile) solved. Then a kraft pulp fiber mixture introduced into the solution and distributed homogeneously. Subsequently the black powder is preferably in the grain size range between 0.2 and 1.5 mm and optionally a plasticizer portion added. Furthermore, to increase the flame temperature and to accelerate the ignition reaction 2 to 12% (preferably 3 to 5%) magnesium and / or aluminum powder Solution mixed and distributed. The viscosity of a such a mixture has relatively high values ( ⁇ 5000 Pa * s) so that there is a pasty kindling.
- NC pyrotechnic rigid foam
- a solvent e.g. acetonitrile
- the pyrotechnic lacquer layer 11 for example applied by spraying and then dried.
- an approximately 1 to 3 mm thick layer of the kindling is e.g. through a slot die, onto the outer surface the support tube 5 with the aid of a metering piston pump pressed. Due to their thixotropic attitude by adding the cellulose fiber mixture, the Stand the ignition material on the support tube and adhere.
- the support tube is placed in a drying tunnel in which a temperature from 30 - 60 ° C and a negative pressure of approx. 700 mbar is present. As a result, the solvent escapes on the surface by evaporation.
- the igniter mass is poor in solvent and a coherent surface film is formed, which the corresponds to the surface layer designated 9 in FIG. in the Foams inside under the forming surface layer 9 the ignition mass by evaporation of the solvent and forms a hardening foam structure of a thickness that -depending on the selected layer thickness of the ignition material- between 0.5 and should be 2 mm.
- the vapors escape through pores the outer skin. They are put down in a cold trap and recovered the solvent.
- the carrier has a surface with screen holes and is hollow inside.
- the vapors can then enter the interior of the carrier be suctioned off when a slight vacuum is applied.
- the thickness can be determined by the temperature and the vacuum the hard foam layer and its porosity can be controlled. After the drying process, the pressure can be increased slightly Rigid foam layer covering the dimensions and contour of the Support tube has accepted, deducted from the carrier and on the prepared support tube can be pushed.
- the support tube is prepared by that it is on both sides, for example, in one spraying operation is painted.
- this varnish provides the Inner coating of the perforated support tube 5.
- On the other hand forms the outer coating of the support tube with the paint an adhesive connection between the support tube and the slid over Rigid foam molding.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Description
Die Erfindung betrifft ein Anzündsystem für Treibladungen
nach dem Oberbegriff des Anspruchs 1. Die Erfindung bezieht
sich ferner auf ein Verfahren zur Herstellung derartiger
Anzündsysteme.The invention relates to an ignition system for propellant charges
according to the preamble of
Aus der DE 42 23 735 A1 ist ein Niederdruckanzündsystem insbesondere für modular aufgebaute Treibladungen großkalibriger Munition bekannt, bei dem zur Erreichung kurzer Anzündzeiten die einzelnen Treibladungsmodule jeweils ein gelochtes Stützrohr aus einem verbrennbaren Material aufweisen, welches einen axialen Anzündkanal umschließt. Auf der dem Treibladungspulver zugewandten Seite ist dabei eine Anzündübertragungsladung vorgesehen. Diese besteht im wesentlichen aus Treibladungs-Pellets, die jeweils mit einer sehr dünnen Anzündmischung von etwa 1/10 mm aus in Nitrozellulose gebundenem Schwarzpulver beschichtet sind. Vorzugsweise werden die mit der Anzündmischung beschichteten Pellets in einem verbrennbaren Niederdruckrohr, z.B. einem Schrumpfschlauch, angeordnet.DE 42 23 735 A1 discloses a low-pressure ignition system in particular for modularly structured propellant charges of large calibres Ammunition known to achieve short ignition times the individual propellant charge modules each have a perforated support tube made of a combustible material which encloses an axial ignition channel. On the propellant powder facing side is an ignition transfer charge intended. This essentially consists of Propellant pellets, each with a very thin Ignition mixture of about 1/10 mm from in nitrocellulose bound black powder are coated. Preferably the pellets coated with the ignition mixture are a combustible low pressure pipe, e.g. a shrink tube, arranged.
Wie der vorstehend erwähnten Schrift ferner zu entnehmen ist, kann das Stützrohr zusätzlich zu der eigentlichen Anzündübertragungsladung an seinen Innen- als auch Außenseiten mit einer dünnen Schicht der vorstehend erwähnten Anzündmischung beschichtet sein.As can also be seen from the above-mentioned document, can the support tube in addition to the actual ignition transfer charge on its inside and outside with a thin layer of the igniter mixture mentioned above be coated.
Nachteilig ist bei diesem Anzündsystem vor allem die relativ aufwendige Herstellung der mit der Anzündmischung beschichteten Pellets sowie die zeitaufwendige gleichmäßige Anordnung der beschichteten Pellets um das Stützrohr herum, die regelmäßig zusätzliche Arbeitsgänge erforderlich machen.The disadvantage of this kind of ignition system is the relative one elaborate production of the coated with the ignition mixture Pellets and the time-consuming, even arrangement of the coated pellets around the support tube, which are regular make additional operations necessary.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Anzündsystem zu schaffen, welches zur Anzündung mehrteiliger Ladungsaufbauten geeignet ist, eine kurze Umsetzungszeit zur Anzündung der Treibladung aufweist und einfach und kostengünstig herstellbar ist. Ferner soll ein Verfahren zur Herstellung eines derartigen Anzündsystems offenbart werden.The present invention is based on the object To create ignition system, which is multi-part for lighting Charge structures is suitable for a short implementation time Ignition of the propellant charge is simple and inexpensive can be produced. Furthermore, a method of manufacture is said to of such an ignition system are disclosed.
Diese Aufgabe wird hinsichtlich des Anzündsystems durch die
Merkmale des kennzeichnenden Teiles des Anspruchs 1 und
hinsichtlich des Verfahrens zu seiner Herstellung durch die
Merkmale des kennzeichnenden Teiles des Anspruchs 7 gelöst.
Weitere vorteilhafte Ausgestaltungen der Erfindung offenbaren
die Unteransprüche.This task is carried out with regard to the ignition system
Features of the characterizing part of
Im wesentlichen liegt der Erfindung der Gedanke zugrunde, als Anzündübertragungsladung nicht mit einer Anzündmischung beschichtete Pellets zu verwenden, sondern eine 1,0 bis 3 mm dicke pyrotechnische Composite-Hartschaumschicht zu benutzen, die in ihrem Inneren eine weitgehend grobporige Struktur (Schwammstruktur) aufweist. Die relativ dünnen dem Treibladungspulver und dem Stützrohr zugewandten Oberflächenschichten sollen hingegen vorzugsweise als Integralschicht dichtgeschlossen sein, um den geforderten Schutz der Hartschaumschicht gegen Feuchtigkeit und Wasser zu gewährleisten.Essentially, the invention is based on the idea of Ignition transfer charge not coated with an ignition mixture Pellets to use, but a 1.0 to 3 mm use thick pyrotechnic composite rigid foam layer which is largely coarse-pored in structure (Sponge structure). The relatively thin propellant powder and surface layers facing the support tube should, however, preferably be tightly closed as an integral layer to the required protection of the rigid foam layer to ensure against moisture and water.
Eine derartige erfindungsgemäße Hartschaumschicht gewährleistet auch bei tiefen Temperaturen noch eine sichere, schnelle und reproduzierbare Anzündung des Treibladungspulvers. Außerdem ist die Anzündübertragung des Hartschaumes überraschenderweise relativ unabhängig von seinem Strukturaufbau (z.B. dem Grad der Porosität, der Außenhautcharakteristik, der lokale Dichteschwankungen etc.). Dieses bedeutet, daß an die Parameter zur Herstellung des Hartschaumes und seiner Struktur hinsichtlich Temperatur, Druck und Trocknungszeit etc. keine hochpräzisen Forderungen gestellt werden müssen.Such a hard foam layer according to the invention ensures a safe, even at low temperatures, fast and reproducible ignition of the propellant powder. In addition, the ignition transfer of the rigid foam Surprisingly, relatively independent of its structure (e.g. the degree of porosity, the skin characteristics, the local density fluctuations etc.). This means that to the parameters for the production of rigid foam and its structure in terms of temperature, pressure and drying time etc. no high-precision demands are made have to.
Als besonders vorteilhaft hat sich das erfindungsgemäße Anzündsystem erwiesen, wenn der pyrotechnische Hartschaum einen Zusatz von Cellulose- und/oder Kunststoffasern enthält. Einerseits wird durch diesen Zusatz die Festigkeit und damit die mechanische Stabilität des Hartschaumes wesentlich gesteigert. Andererseits ermöglicht die Verwendung derartiger Fasern die Verarbeitung auch grobkörniger Schwarzpulver. Während beispielsweise bei Verwendung der in der DE 42 23 735 A1 beschriebenen Anzündmischung zur Auftragung eines gleichmäßigen Filmes auf dem Stützrohr bzw. auf den Treibladungs-Pellets das Schwarzpulver lediglich Korngrößen von maximal 0,1 mm aufweisen darf, können bei der erfindungsgemäßen Schicht die Korngrößen des Schwarzpulvers bis 1,5 mm betragen. Trotzdem ergibt sich durch die Verwendung körniger Schwarzpulver eine Hartschaumschicht, die eine hohe innere Verfestigung des Schwarzpulvers aufweist und fest an dem jeweiligen Stützrohr haftet.The ignition system according to the invention has proven to be particularly advantageous proven when the pyrotechnic rigid foam Addition of cellulose and / or plastic fibers contains. On the one hand, this addition increases the strength and therefore the mechanical stability of the rigid foam is significantly increased. On the other hand, the use of such enables Fibers also work with coarse-grained black powder. While for example when using the in DE 42 23 735 A1 Ignition mixture described for the application of a uniform Film on the support tube or on the propellant pellets the black powder only grain sizes of maximum 0.1 mm may have in the layer according to the invention the grain sizes of the black powder are up to 1.5 mm. Nevertheless results from the use of granular black powder a hard foam layer, which has a high internal strengthening of the Has black powder and firmly on the respective support tube is liable.
Der große Vorteil der Verwendung eines grobkörnigen Schwarzpulvers besteht darin, daß die lockere Verteilung der relativ großen Schwarzpulverkörner in der Schaumstruktur mit ihrer großen Kornoberfläche im Anzündmoment und im Moment der Flammenübertragung auf das Treibladungspulver bei kaum erhöhten Umgebungsdrücken für größte Lebhaftigkeitswerte sorgen.The big advantage of using a coarse-grained black powder is that the loose distribution of the relative large black powder grains in the foam structure with their large grain surface at the moment of ignition and at the moment of flame transmission on the propellant powder with hardly increased Provide ambient pressures for the greatest liveliness values.
Experimentell hat sich ergeben, daß der Cellulose- oder Kunststoffaseranteil des Schaumes etwa zwischen 0,2 und 5 Gew% liegen sollte. Vorzugsweise sollte der Faseranteil etwa 1-3 Gew% betragen.It has been found experimentally that the cellulose or Plastic fiber content of the foam between about 0.2 and 5 % Should be. The fiber content should preferably be approximately 1-3% by weight.
Das erfindungsgemäße Verfahren zeichnet sich dadurch aus, daß zunächst Nitrocellulose (NC) in einem NC-Lösemittel gelöst wird. Anschließend wird das in dem NC-Lösemittel unlösliche Cellulose-und/oder Kunststoff-Fasergemisch in die Lösung eingebracht und in dieser homogen verteilt. Nachdem dann das Schwarzpulver und gegebenenfalls weitere Zusätze, beispielsweise ein Weichmacher, zugemischt und in der Lösung homogen verteilt werden, kann die derart zusammengesetzte Anzündmasse entweder direkt auf das Stützrohr oder auf einen separaten Formkörper aufgetragen und vorzugsweise bei Temperaturen zwischen 30 bis 60 °C und einem leichten Unterdruck getrocknet werden, so daß das Lösemittel verdampft und dadurch im Inneren die gewünschte grobporige und poröse Struktur sowie an den Oberflächen einen zusammenhängenden Oberflächenfilm erzeugt.The inventive method is characterized in that First, nitrocellulose (NC) dissolved in an NC solvent becomes. Then that which is insoluble in the NC solvent becomes Cellulose and / or plastic fiber mixture introduced into the solution and distributed homogeneously in it. Then after that Black powder and possibly other additives, for example a plasticizer, mixed and homogeneous in the solution can be distributed, the ignition mass composed in this way either directly on the support tube or on a separate one Shaped body applied and preferably at temperatures between 30 to 60 ° C and a slight negative pressure dried be so that the solvent evaporates and thereby inside the desired coarse-pored and porous structure as well creates a coherent surface film on the surfaces.
Das erfindungsgemäße Verfahren hat u.a. den Vorteil, daß zur Herstellung des Hartschaumes kein separates Treibmittel verwendet werden muß, weil das Lösungsmittel diese Rolle mit übernimmt.The method according to the invention has i.a. the advantage that Production of the rigid foam does not use a separate blowing agent must be because the solvent has this role takes over.
Als Nitrocellulose hat sich vor allem Lackwolle mit einem Stickstoffgehalt von 11,5 bis 12,5% Stickstoff bewährt. Bei Anpassung der Lösemittelwahl an das Lösevermögen von hochnitrierten Nitocellulosen kann auch Schießbaumwolle (Stickstoffgehalt > 13%) zur Anwendung kommen. Als NC-Lösemittel, welches auch die Rolle des Treibmittels übernehmen soll, haben sich unter anderem Aceton, Acetonitril und verschiedene Ester oder Ketone und geeignete Abmischungen als geeignet erwiesen. Als Cellulose-Fasergemisch kann mit gutem Erfolg Baumwollinters oder Kraftzellstoff verwendet werden.As a nitrocellulose, especially vinyl wool with a Proven nitrogen content of 11.5 to 12.5% nitrogen. At Adaptation of the choice of solvent to the solvent power of Highly nitrided nitocelluloses can also be used for shooting cotton (Nitrogen content> 13%) are used. As an NC solvent, which also take on the role of blowing agent should have, among others, acetone, acetonitrile and various esters or ketones and suitable mixtures as proven suitable. As a cellulose-fiber mixture can be used with good Successful cotton sinter or kraft pulp can be used.
Bei der Verwendung des Schwarzpulvers sind bevorzugt Weichkorntypen verwendbar, und zwar auch solche, die unterschiedliche Zusammensetzungen der Grundform aufweisen, also nicht nur 75%, sondern auch 77% oder 80% Kaliumnitrat enthalten.When using the black powder, soft grain types are preferred usable, including those that differ Have compositions of the basic form, so not contain only 75%, but also 77% or 80% potassium nitrate.
Eine Beschleunigung der Anzündreaktion und eine Erhöhung der Flammentemperatur wird erreicht, wenn der Anzündmasse zusätzlich 2 - 12 Gew%, vorzugsweise 3 - 5 Gew%, Magnesium- oder Aluminiumpulver zugemischt wird.Accelerating the ignition response and increasing the Flame temperature is reached if the kindling mass is additional 2 - 12 wt%, preferably 3 - 5 wt%, magnesium or Aluminum powder is added.
Als Weichmacher haben sich Dibutylphthalat und andere Phthalate sowie Centralit bewährt, die die ansonsten relativ harte Struktur des Schaumes elastischer und biegsamer gestalten.Dibutyl phthalate and other phthalates have become plasticizers proven as well as centralite which the otherwise relatively hard Make the structure of the foam more elastic and pliable.
Die Verarbeitung von grobkörnigem Schwarzpulver unter Zusatz von dem Cellulosefasergemisch bereitet im dünnflüssigen Zustand, beispielsweise im Spritzprozeß, Probleme, weil die groben Körner sich rasch absetzen, die Spritzdüse verstopfen und zu inhomogenen Verteilungen auf dem Mittenrohr führen können. Es hat sich daher als vorteilhaft erwiesen, die Verarbeitung auf eine hochviskose Anzündmasse abzustimmen. Eine derartige Masse kann dann beispielsweise mittels eines Walzenauftragsverfahrens auf den Stützkörper aufgetragen werden.The processing of coarse-grained black powder with addition prepared from the cellulose fiber mixture in the thin liquid state, for example in the injection molding process, problems because of the coarse grains settle quickly, clog the spray nozzle and lead to inhomogeneous distributions on the center tube can. Processing has therefore proven to be advantageous to match a highly viscous ignition mass. A such mass can then be applied, for example, by means of a roller application process be applied to the support body.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den folgenden anhand von Figuren erläuterten Ausführungsbeispielen. Es zeigen:
- Fig.1
- einen Längsschnitt eines erfindungsgemäßen Treibladungsmodules und
- Fig.2
- einen Teilquerschnitt durch das in Fig.1 dargestellte Modul entlang der dort mit II-II bezeichneten Schnittlinie in vergrößerter, nicht maßstabsgerechter Darstellung.
- Fig. 1
- a longitudinal section of a propellant charge module according to the invention and
- Fig. 2
- a partial cross section through the module shown in Figure 1 along the section line designated there with II-II in an enlarged, not to scale representation.
In Fig.1 ist mit 1 ein in großkalibrigen Geschützen einsetzbares
Treibladungsmodul bezeichnet (vgl. z.B. auch die EP 0
306 616 B1), welches im wesentlichen aus einem Behälter 2 zur
Aufnahme von an sich bekanntem Treibladungspulver 3 besteht.
Für eine zentrale Anzündung ist ein freier Anzündkanal 4
vorgesehen, der seitlich von einem Stützrohr 5 aus einem
verbrennbaren Material begrenzt wird. In dem Stützrohr 5
befinden sich eine Vielzahl von Öffnungen 6.In Fig. 1, 1 can be used in large-caliber guns
Propellant charge module (see e.g. EP 0
306 616 B1), which essentially consists of a
Erfindungsgemäß ist auf der dem Treibladungspulver 3 zugewandten
Seite des Stützrohres 5 als Anzündübertragungsladung
eine pyrotechnische Composite-Hartschaumschicht 7 mit einem
im wesentlichen dreischichtigen Aufbau (Fig.2) angeordnet.
Die dem Treibladungspulver zugewandte Oberflächenschicht 8
und die dem Stützrohr 5 zugewandte Oberflächenschicht 9 sind
jeweils dichtgeschlossen (d.h. die Dichte sollte > 1 g/cm3
betragen) und bieten Schutz gegen in den Hartschaum möglicherweise
eindringende Feuchtigkeit. Die zwischen den Oberflächenschichten
8 und 9 liegende innere Schicht 10 weist
eine relativ poröse und grobporige Schaumstruktur auf (d.h.
die Schaumdichte sollte zwischen 0,4 und 0,9 g/cm3 liegen).According to the invention, a pyrotechnic composite
Die dem Anzündkanal 4 zugewandte Oberfläche des Stützrohres 5
überzieht eine dünne pyrotechnische Lackschicht (Anzündschicht)
11. The surface of the
Im folgenden wird auf die Wirkungsweise des erfindungsgemäßen Anzündsystems eingegangen:The following is the operation of the invention Ignition system received:
Nach Anzündung eines nicht dargestellten Anzünders gelangen
die heißen Anzündgase in den Anzündkanal 4, entzünden dort
sowohl die pyrotechnische Lackschicht 11 als auch über die
öffnungen 6 die Oberflächenschicht 8 und dann die grobporige
Innenschicht 10 mit seinen anzündwilligen Schwarzpulverkörnern.
Die lockere Verteilung dieser Körner in der Schaumstruktur
mit ihrer großen Kornoberfläche sorgen im Moment der
Flammenübertragung auf das Treibladungspulver bei kaum
erhöhten Umgebungsdrücken für größte Lebhaftigkeitswerte der
Flammenausbreitung. Dadurch kommt es zu einer schlagartigen
Anzündung des Treibladungspulvers in breiter Front, weil die
brennenden Hartschaumteile allseits brennend in das Treibladungspulver
geschleudert werden.After igniting a lighter, not shown
the hot ignition gases in ignition channel 4 ignite there
both the
Zur Herstellung des pyrotechnischen Hartschaumes wird Nitrocellulose
(NC) (z.B. Lackwolle mit einem Stickstoffgehalt
zwischen 11,5% und 12,5% oder Schießbaumwolle mit einem
Stickstoffgehalt über 13%) in einem Lösemittel (z.B. Acetonitril)
gelöst. Dann wird ein Kraftzellstoff-Fasergemisch
in die Lösung eingebracht und homogen verteilt. Anschließend
wird das Schwarzpulver bevorzugt im Korngrößenbereich zwischen
0,2 und 1,5 mm sowie gegebenenfalls ein Weichmacheranteil
zugesetzt. Ferner können zur Erhöhung der Flammentemperatur
und zur Beschleunigung der Anzündreaktion 2 bis 12%
(bevorzugt 3 bis 5%) Magnesium- und/oder Aluminiumpulver der
Lösung zugemischt und verteilt werden. Die Viskosität einer
derartigen Mischung weist relativ hohe Werte auf (≥ 5000
Pa*s), so daß eine teigige Anzündmasse vorliegt.Nitrocellulose is used to manufacture the pyrotechnic rigid foam
(NC) (e.g. lacquer wool with a nitrogen content
between 11.5% and 12.5% or shooting cotton with one
Nitrogen content above 13%) in a solvent (e.g. acetonitrile)
solved. Then a kraft pulp fiber mixture
introduced into the solution and distributed homogeneously. Subsequently
the black powder is preferably in the grain size range between
0.2 and 1.5 mm and optionally a plasticizer portion
added. Furthermore, to increase the flame temperature
and to accelerate the
Bevor diese Anzündmasse auf das Stützrohr 5 aufgetragen wird,
wird zunächst die pyrotechnische Lackschicht 11 beispielsweise
im Spritzverfahren aufgebracht und dann getrocknet. Anschließend
wird eine etwa 1 bis 3 mm dicke Schicht der Anzündmasse,
z.B. durch eine Breitschlitzdüse, auf die Außenoberfläche
des Stützrohres 5 mit Hilfe einer Dosierkolbenpumpe
gedrückt. Durch ihre thixotrope Einstellung, bedingt
durch die Zumischung des Cellulosefasergemisches, bleibt die
Anzündmasse auf dem Stützrohr stehen und haften. Das Stützrohr
wird in einen Trockenkanal gebracht, in dem eine Temperatur
von 30 - 60 °C und ein Unterdruck von ca. 700 mbar
vorliegt. Dadurch entweicht das Lösemittel an der Oberfläche
durch Verdunsten. Die Anzündmasse verarmt an Lösemittel und
es bildet sich ein zusammenhängender Oberflächenfilm, der der
in Fig.2 mit 9 bezeichneten Oberflächenschicht entspricht. Im
Inneren unter der sich bildenden Oberflächenschicht 9 schäumt
die Anzündmasse durch Verdampfen des Lösemittels auf und bildet
eine sich erhärtende Schaumstruktur von einer Dicke, die
-je nach gewählter Schichtdicke der Anzündmasse- zwischen 0,5
und 2 mm betragen soll. Die Dämpfe entweichen durch Poren in
der Außenhaut. Sie werden in einer Kühlfalle niedergeschlagen
und das Lösemittel zurückgewonnen.Before this kindling is applied to the
Auch auf der dem Stützrohr 5 zugewandten Seite bildet sich ein geschlossener Film der Anzündmasse, der an dem Stützrohr haften bleibt und der der in Fig.2 mit 8 bezeichneten Oberflächenschicht entspricht. Durch die Kapillarwirkung wird hier das Lösungsmittel in das poröse Stützrohr gezogen.It also forms on the side facing the support tube 5 a closed film of the igniter, which is on the support tube sticks and that of the surface layer designated 8 in FIG corresponds. Due to the capillary action here the solvent is drawn into the porous support tube.
Anstatt die Hartschaumschicht direkt auf dem Stützrohr 5 aufzubringen,
kann auch mit Hilfe eines Metall- oder Kunststoffträgers,
welcher die Außenabmessungen des Stützrohres besitzt,
ein entsprechender Formling hergestellt werden. Hierzu
weist der Träger eine Oberfläche mit Sieblöchern auf und ist
innen hohl. In das Innere des Trägers können dann die Dämpfe
abgesaugt werden, wenn ein leichtes Vakuum angelegt wird.
Über die Temperatur und das vorgelegte Vakuum kann die Dicke
der Hartschaumschicht und dessen Porosität gesteuert werden.
Nach dem Trockenprozeß kann mittels leichtem Überdruck die
Hartschaumschicht, die die Abmessungen und die Kontur des
Stützrohres angenommen hat, vom Träger abgezogen und auf das
vorbereitete Stützrohr geschoben werden.Instead of applying the hard foam layer directly on the
Die Vorbereitung des Stützrohres erfolgt in diesem Fall dadurch,
daß es beidseitig beispielsweise in einem Spritzvorgang
lackiert wird. Dieser Lack liefert dann einerseits die
Innenbeschichtung des gelochten Stützrohres 5. Andererseits
bildet die Außenbeschichtung des Stützrohres mit dem Lack
eine Klebeverbindung zwischen Stützrohr und dem übergeschobenen
Hartschaumschicht-Formling. In this case, the support tube is prepared by
that it is on both sides, for example, in one spraying operation
is painted. On the one hand, this varnish provides the
Inner coating of the
- 11
- TreibladungsmodulPropellant charge module
- 22nd
- Behältercontainer
- 33rd
- TreibladungspulverPropellant powder
- 44th
- AnzündkanalIgnition channel
- 55
- StützrohrSupport tube
- 66
- Öffnungenopenings
- 77
- Anzündübertragungsladung, HartschaumschichtIgnition transfer charge, hard foam layer
- 88th
- Oberflächenschicht, TeilschichtSurface layer, partial layer
- 99
- Oberflächenschicht, TeilschichtSurface layer, partial layer
- 1010th
- innere Schicht, innere Teilschichtinner layer, inner sub-layer
- 1111
- pyrotechnische Lackschichtpyrotechnic paint layer
Claims (17)
- Ignition system for propellant charges having a perforated support tube (5) of a combustible material, which coaxially embraces an open ignition channel (4), an ignition transmission charge (7) being provided on that side of the support tube (5) which faces towards the propellant charge powder (3), characterised by the fact that the ignition transmission charge (7) comprises a rigid expanded plastic pyrotechnic layer 1 to 3 mm thick, being a composite rigid expanded plastic, and that the rigid expanded plastic layer (7) has a structure formed of a number of separate layers (8 to 10), the inner individual layer (10) having a large-pored structure or a sponge structure while the surface layers (8,9) adjacent to the inner layer (10) each have a dense structure.
- Ignition system in accordance with Claim 1, characterised by the fact that the rigid expanded plastic pyrotechnic layer (7) is a mixture of nitrocellulose and black powder containing a mixture of cellulose and/or plastics and fibre.
- Ignition system in accordance with Claim 2, characterised by the fact that the proportion of cellulose and/or plastic fibres in the rigid expanded plastic layer (7) is between 0.5 and 5% by weight and preferably 3% by weight.
- Ignition system in accordance with Claim 2 or 3, characterised by the fact that the black powder has an average granularity of between 0.2 and 1.5 mm.
- Ignition system in accordance with any one of Claims 1 to 4, characterised by the fact that the rigid expanded plastic pyrotechnic layer (7) contains 7 to 12% by weight, preferably 3 to 5% by weight of magnesium or aluminium powder with a grain size of < 0.1 mm.
- Ignition system in accordance with one of Claims 1 to 4, characterised by the fact that the perforated support tube (5) is coated, on the side facing towards the ignition channel (4), with a pyrotechnic lacquer.
- Process for the production of an ignition system for propellant charges with a perforated support tube (5) of combustible material and at least one open ignition channel (4), that side of the support tube (5) which faces towards the propellant charge (3) being provided with an ignition transmission charge (7) containing nitrocellulose and/or black powder, characterised by the fact that nitrocellulose is first dissolved in a solvent containing NC, after which a cellulose and/or plastic fibre mixture insoluble in the NC solvent is introduced into the said solvent and homogeneously distributed, while the black powder with possibly a softening agent is added and distributed, this ignition composition being then applied to either the supporting tube (5) itself or to a separate moulded body, and dried at a preselected temperature and at a preselected low pressure, so that the solvent evaporates and thus the desired large-pored and porous structure, as well as the corresponding surface layers (8,9) with a dense structure are formed in the interior of the ignition composition.
- Process in accordance with Claim 7, characterised by the fact that the solvent used consists of acetone, acetone nitrile, ester or ketones or mixtures thereof.
- Process in accordance with Claim 7 or 8, characterised by the fact that the nitrocellulose used consists of lacquered cotton and/or gun cotton with a nitrogen content of ≥ 11.5%.
- Process in accordance with any one of Claims 7 to 9, characterised by the fact that the cellulose used consists of craft paper pulp or cotton lint.
- Process in accordance with any one of Claims 7 to 10 characterised by the fact that use is made of black powder with a granularity of between 0.2 and 1.5 mm.
- Process in accordance with any one of Claims 7 to 11, characterised by the fact that in addition to the normal black powder with a KNO3 content of 75% use is made of black powder with a KNO3 content of 77% or 80%.
- Process in accordance with any one of Claims 7 to 12, characterised by the fact that to the ignition composition is added 2 to 12%, preferably 3 to 5%, of magnesium powder or aluminium powder with a grain size of below 0.1 mm.
- Process in accordance with any one of Claims 7 to 13, characterised by the fact that to the ignition composition is added 1 to 6%, preferably 1 to 3%, of a softening agent.
- Process in accordance with any one of Claims 7 to 14, characterised by the fact that the softening agent used comprises centralite, dibutyl, phthalate or other phthalates.
- Process in accordance with any one of Claims 7 to 15, characterised by the fact that the ignition composition is set to be thixotropic and has a viscosity of ≥ 5000 Pa*s.
- Process in accordance with Claim 16, characterised by the fact that the ignition composition is applied using a roller application method or by means of a wide-slit nozzle to the support tube (5) or to a separate moulded body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4445991A DE4445991A1 (en) | 1994-12-22 | 1994-12-22 | Ignition system for propellant charges and method for producing such ignition systems |
| DE4445991 | 1994-12-22 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0718591A2 EP0718591A2 (en) | 1996-06-26 |
| EP0718591A3 EP0718591A3 (en) | 1996-11-20 |
| EP0718591B1 true EP0718591B1 (en) | 1998-01-28 |
Family
ID=6536726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95118183A Expired - Lifetime EP0718591B1 (en) | 1994-12-22 | 1995-11-18 | Ignition device for propellant charges and manufacturing method for such an ignition device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5670735A (en) |
| EP (1) | EP0718591B1 (en) |
| JP (1) | JP3699180B2 (en) |
| DE (2) | DE4445991A1 (en) |
| IL (1) | IL116483A (en) |
| NO (1) | NO309745B1 (en) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19635795C2 (en) * | 1996-09-04 | 2002-09-26 | Rheinmetall W & M Gmbh | Propellant charge for barrel weapons |
| US6224099B1 (en) | 1997-07-22 | 2001-05-01 | Cordant Technologies Inc. | Supplemental-restraint-system gas generating device with water-soluble polymeric binder |
| SE519296C2 (en) | 1997-08-14 | 2003-02-11 | Bofors Defence Ab | The booster module |
| US6170399B1 (en) | 1997-08-30 | 2001-01-09 | Cordant Technologies Inc. | Flares having igniters formed from extrudable igniter compositions |
| DE19738419A1 (en) * | 1997-09-03 | 1999-03-04 | Rheinmetall W & M Gmbh | Method of making a propellant lighter |
| DE19818337C1 (en) * | 1998-04-23 | 1999-11-18 | Buck Werke Gmbh & Co Kg | Pyrotechnic active mass with ignition and combustion accelerator |
| US6340175B1 (en) | 1998-10-14 | 2002-01-22 | Alliant Techsystems, Inc. | Air bag assemblies with foamed energetic igniters |
| SE9804400L (en) | 1998-12-18 | 2000-02-14 | Bofors Ab | In the initiation of artillery propellant charges consisting of a plurality of propellant modules arranged one after the other, to achieve an even over-ignition between them and propellant modules and complete charges designed in accordance with the method. |
| US6779462B2 (en) * | 2001-06-04 | 2004-08-24 | Raytheon Company | Kinetic energy rod warhead with optimal penetrators |
| US6598534B2 (en) * | 2001-06-04 | 2003-07-29 | Raytheon Company | Warhead with aligned projectiles |
| US7624683B2 (en) | 2001-08-23 | 2009-12-01 | Raytheon Company | Kinetic energy rod warhead with projectile spacing |
| US8127686B2 (en) * | 2001-08-23 | 2012-03-06 | Raytheon Company | Kinetic energy rod warhead with aiming mechanism |
| US20060283348A1 (en) * | 2001-08-23 | 2006-12-21 | Lloyd Richard M | Kinetic energy rod warhead with self-aligning penetrators |
| US7624682B2 (en) * | 2001-08-23 | 2009-12-01 | Raytheon Company | Kinetic energy rod warhead with lower deployment angles |
| US20050109234A1 (en) * | 2001-08-23 | 2005-05-26 | Lloyd Richard M. | Kinetic energy rod warhead with lower deployment angles |
| US6910423B2 (en) * | 2001-08-23 | 2005-06-28 | Raytheon Company | Kinetic energy rod warhead with lower deployment angles |
| US7621222B2 (en) * | 2001-08-23 | 2009-11-24 | Raytheon Company | Kinetic energy rod warhead with lower deployment angles |
| KR100483315B1 (en) * | 2002-06-21 | 2005-04-18 | 주식회사 고려노벨화약 | Explosive vessel for slight shock and low noise |
| US6931994B2 (en) * | 2002-08-29 | 2005-08-23 | Raytheon Company | Tandem warhead |
| US7415917B2 (en) * | 2002-08-29 | 2008-08-26 | Raytheon Company | Fixed deployed net for hit-to-kill vehicle |
| US20060021538A1 (en) * | 2002-08-29 | 2006-02-02 | Lloyd Richard M | Kinetic energy rod warhead deployment system |
| US7040235B1 (en) | 2002-08-29 | 2006-05-09 | Raytheon Company | Kinetic energy rod warhead with isotropic firing of the projectiles |
| US7017496B2 (en) | 2002-08-29 | 2006-03-28 | Raytheon Company | Kinetic energy rod warhead with imploding charge for isotropic firing of the penetrators |
| JP2007508524A (en) | 2003-10-14 | 2007-04-05 | レイセオン・カンパニー | Mine protection system |
| US6920827B2 (en) * | 2003-10-31 | 2005-07-26 | Raytheon Company | Vehicle-borne system and method for countering an incoming threat |
| US20090320711A1 (en) | 2004-11-29 | 2009-12-31 | Lloyd Richard M | Munition |
| US20120260814A1 (en) * | 2008-04-25 | 2012-10-18 | Alliant Techsystems Inc. | Advanced Muzzle Loader Ammunition |
| DE102008026645A1 (en) | 2008-06-03 | 2009-12-10 | Diehl Bgt Defence Gmbh & Co. Kg | propellant |
| US8418623B2 (en) | 2010-04-02 | 2013-04-16 | Raytheon Company | Multi-point time spacing kinetic energy rod warhead and system |
| DE102022131652A1 (en) * | 2022-11-30 | 2024-06-06 | Rheinmetall Waffe Munition Gmbh | Ignition system, propellant and ammunition |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2509038B1 (en) * | 1981-07-03 | 1986-06-20 | France Etat | FAST IGNITER WITH DETONATING CORD |
| GB2160625A (en) * | 1984-05-12 | 1985-12-24 | Diehl Gmbh & Co | A propelling charge for large-calibre weapons |
| DE3432291A1 (en) * | 1984-09-01 | 1986-03-13 | Rheinmetall GmbH, 4000 Düsseldorf | DRIVE CHARGE MODULE |
| DE3447276A1 (en) * | 1984-12-22 | 1986-06-26 | Diehl GmbH & Co, 8500 Nürnberg | Combustible cartridge |
| DE3730530A1 (en) | 1987-09-11 | 1989-03-23 | Rheinmetall Gmbh | TRANSDUCTION CHARGE FOR A DRIVE CHARGE |
| US5269224A (en) * | 1990-08-30 | 1993-12-14 | Olin Corporation | Caseless utilized ammunition charge module |
| GB9119907D0 (en) * | 1991-09-18 | 1991-10-30 | Secr Defence | Modular gun charge igniter |
| DE4223735A1 (en) * | 1992-07-18 | 1994-01-20 | Diehl Gmbh & Co | Ignition system for propellant charges |
| FR2710976B1 (en) * | 1993-10-05 | 1995-11-17 | Poudres & Explosifs Ste Nale | Elements of combustible containers for artillery ammunition, method of manufacturing and use of such elements. |
-
1994
- 1994-12-22 DE DE4445991A patent/DE4445991A1/en not_active Withdrawn
-
1995
- 1995-11-18 EP EP95118183A patent/EP0718591B1/en not_active Expired - Lifetime
- 1995-11-18 DE DE59501373T patent/DE59501373D1/en not_active Expired - Fee Related
- 1995-11-21 NO NO954700A patent/NO309745B1/en not_active IP Right Cessation
- 1995-12-13 JP JP32431595A patent/JP3699180B2/en not_active Expired - Fee Related
- 1995-12-21 IL IL11648395A patent/IL116483A/en not_active IP Right Cessation
- 1995-12-22 US US08/577,393 patent/US5670735A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3699180B2 (en) | 2005-09-28 |
| IL116483A (en) | 2001-01-11 |
| DE4445991A1 (en) | 1996-06-27 |
| IL116483A0 (en) | 1996-03-31 |
| JPH08219692A (en) | 1996-08-30 |
| NO954700D0 (en) | 1995-11-21 |
| DE59501373D1 (en) | 1998-03-05 |
| EP0718591A3 (en) | 1996-11-20 |
| NO954700L (en) | 1996-06-24 |
| NO309745B1 (en) | 2001-03-19 |
| EP0718591A2 (en) | 1996-06-26 |
| US5670735A (en) | 1997-09-23 |
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