EP0842390B1 - Fixed ammunition - Google Patents

Fixed ammunition Download PDF

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Publication number
EP0842390B1
EP0842390B1 EP19960928331 EP96928331A EP0842390B1 EP 0842390 B1 EP0842390 B1 EP 0842390B1 EP 19960928331 EP19960928331 EP 19960928331 EP 96928331 A EP96928331 A EP 96928331A EP 0842390 B1 EP0842390 B1 EP 0842390B1
Authority
EP
European Patent Office
Prior art keywords
projectile
pressure chamber
cartridge
high
cartridge case
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
Application number
EP19960928331
Other languages
German (de)
French (fr)
Other versions
EP0842390A1 (en
Inventor
Willi Lübbers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nico Pyrotechnik Hanns Juergen Diederichs GmbH and Co KG
Original Assignee
Nico Pyrotechnik Hanns Juergen Diederichs GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DE1995127621 priority Critical patent/DE19527621A1/en
Priority to DE19527621 priority
Application filed by Nico Pyrotechnik Hanns Juergen Diederichs GmbH and Co KG filed Critical Nico Pyrotechnik Hanns Juergen Diederichs GmbH and Co KG
Priority to PCT/DE1996/001388 priority patent/WO1997005445A1/en
Publication of EP0842390A1 publication Critical patent/EP0842390A1/en
Application granted granted Critical
Publication of EP0842390B1 publication Critical patent/EP0842390B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02Cartridges, i.e. cases with charge and missile
    • F42B5/067Mounting or locking missiles in cartridge cases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/38Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of tracer type

Abstract

The proposed fixed ammunition comprises a projectile (11) and a cartridge case (10) which holds it. A cartridge (12) inside the cartridge case (10) encloses a high-pressure chamber (21) containing a propellant charge (14). The cartridge (12) is surrounded by a low-pressure chamber (10a) defined by the inner walls of the caratridge case (10) and part of the base of the projectile (11). On the rear-end side of the projectile (11), a tracer charge (11b) is contained in a tube (27) which protrudes through the upper wall of the cartridge (12) into the high-pressure chamber (21). Projectile and cartridge case are joined via a breaking line (12d). Pressure to expel the projectile (11) from the cartridge case is provided by the pressure in both the high-pressure chamber (21) and the low-pressure chamber (10a). When the projectile is expelled, extraction of the tracer charge from the high-pressure chamber (21) increases the volume of the latter. These measures prevent steep pressure peaks in the pressure curve when the projectile is expelled. At the same time, virtually the entire projectile volume is available for an effective charge.

Description

The invention relates to cartridge ammunition, and especially a practice ammunition for one Grenade pistol or the like, for example in caliber 40 mm.

The invention is based on ammunition according to EP-B-0215042 the applicant. That in a cartridge case The recorded floor has a fog charge as the active charge and carries a tracer at the rear. The cartridge case has an ignition charge and one ignited by it Propellant charge to drive the projectile out of the Cartridge case on. The propellant charge is in one in the Cartridge sleeve in the middle of the cartridge forms a high pressure room. The cartridge is made by one Low pressure room surrounded by the inner walls the cartridge case and part of the bottom of the Storey is limited and with the high pressure room over insulated overflow openings is connected. Furthermore, in the top end wall of the cartridge is a small one Ignition channel available in the rear of the floor arranged tracer leads out. The floor is with the Cartridge connected below the connection point has a predetermined breaking point.

If the propellant charge is ignited via the primer charge, pressure builds up in the high-pressure room, but not is sufficient to blow up the predetermined breaking point and the projectile to drive out. The small through hole is the Tracer set ignited. Once the dam between High-pressure room and low-pressure room breaks open the overflow openings the propellant gases into the low pressure chamber and act on the rest of the bottom of the Storey. Are the pressures in the high pressure room and Low pressure room high enough breaks the Predetermined breaking point, causing the projectile from the Cartridge case is expelled. The trajectory of the The bullet is then burned through Marked tracer marks.

By dividing the pressure space to expel the Storey in a high pressure room and a low pressure room act the forces generated in both pressure rooms to break open the predetermined breaking point between storey and cartridge case together, which makes a very good Precision regarding the reproducibility of the Initial velocity of the projectile and its range can be achieved. This construction has been put into practice Proven thousands of times, both in training as practice ammunition as well as with live ammunition.

With this well-known cartridge ammunition it is enough Tracer traces into the projectile body, thereby No space for the real charge, be it a practice charge or a sharp load, can be used.

According to the invention it is now proposed that in one Usually traces of light trapped in a tube in to let the high pressure space protrude so that it follows Breaking the predetermined breaking point when the Projectile is pulled out of the high pressure room. Here becomes the volume of the high pressure space at the same time enlarged.

With this construction there are essentially two Advantages achieved:

The tracer set can be from the rear thanks to this construction projectile of the projectile, so to speak as a tail, whereby the volume of the floor is practically complete for that Active charge can be used.

Furthermore, by pulling out the Tracer set from the high pressure room whose volume at Expelling the projectile enlarged. This has that The advantage of preventing steep pressure peaks. Herewith an advantage is achieved that in EP-B-0215024 mentioned above is explained for a further embodiment, where the high pressure space is concentric by two arranged to each other and when driving out the projectile extendable sleeves is formed. The enlargement of the Volume of the high pressure room also contributes to one constant, almost temperature-independent Initial velocity of the projectile at, so that in one wide temperature range reproducible shooting results be achieved.

With the construction according to the invention, the The pressure curve in the high-pressure and low-pressure room is controlled in this way be that no steep gas peaks occur, the Pressure in the high pressure chamber even after the Tracer set still increases. A pressure control is further possible in that the free end of the Tracer set z. B. by a cap with or several openings is covered, which after the Pulling out the tracer set from the high pressure room completes this more or less. With appropriate Sizing of the openings can be the clamping of the Propellant charge rate, that's the ratio of Burning surface of the propellant charge to the narrowest Cross section of the outlet or nozzle openings, see above be set to expel all pressure of the floor is essentially continuous.

Usually the walls of the high pressure room are made Made of steel. This has the advantage that the Overflow openings from the high pressure room despite the high Temperature of the propellant charge combustion gases do not burn out, that is, their diameter when burning essentially maintained, so very good reproducible shooting results can be achieved. On the other hand, the weight in steel the practice cartridge increases. However, due to weight reasons the walls of the high pressure room made of aluminum, then burn out the overflow openings very strongly. Furthermore the burning aluminum particles from the Launch tube driven, making it a relatively strong one Muzzle flash is generated. But this is exactly what you want suppress. It has now been found that the burnout of the Overflow openings and thus the muzzle flash strong can be reduced when the high pressure chamber is off Aliminium is made and at least the walls Overflow openings are anodized

Further refinements of the invention result from the Sub-claims emerge.

The invention is in one embodiment based on the Drawing explained in more detail.

In this represent:

  • Figure 1 is a partially sectioned illustration of a cartridge practice ammunition according to the invention from a projectile and a cartridge case;
  • Figure 2 shows the ammunition after detaching the projectile from the cartridge case;
  • Figure 3 is a sectional enlarged view of a tracer set for a cartridge ammunition according to the invention;
  • Figure 4 is a sectional view of a cartridge of the practice ammunition with walls made of aluminum.
  • Figure 1 shows a partially sectioned representation of a cartridge ammunition 1 with a caliber of 40 mm. The Ammunition 1 includes one Cartridge case 10, in the opening of a projectile 11th is arranged, for example as an active charge Fog charge and one arranged at the rear of the projectile Tracer 11b carries. In one in the bottom of the Cartridge sleeve screwed cartridge 12 are one Ignition charge 13 and a propellant charge 14 housed. The Cartridge 12 delimits a high-pressure space 21 in which the propellant charge 14 after ignition by the primer charge 13 burns off. The cartridge 12 or at least the Walls delimiting high-pressure space are made of steel. The high-pressure chamber 21 is through a plurality of overflow openings 22, which are initially covered by a dam 23, with a forming the interior of the cartridge case Low pressure space 10a connected by the walls of the Cartridge case and the floor of the floor 11 limited becomes.

    The cartridge 12 is on its top with an upward projecting thread 24 on which a corresponding Internal thread 25 screwed into the rear of the projectile 11 becomes. In the area of the transition between the top wall the cartridge 12 and the thread 24 is one Breakage point 12d provided. At the rear of floor 11 is the tracer 11b within the internal thread 25 provided in one from the rear of the projectile projecting pipe 27 is added. This tube 27 protrudes through an opening 28 in the top wall of the cartridge in the high-pressure chamber 21, the tube 27 in the Opening 28 is slidably and almost gas-tight.

    The function of the described ammunition is as follows:

    After igniting the primer 13, the propellant charge 14 ignited so that in the high pressure chamber 21 through the Propellant builds up a high pressure, which eventually the Dam 23 blows at the overflow openings, so that The low-pressure chamber 10a also via these overflow openings is filled. Due to the pressure of the propellant gases, the Tracer set llb ignited. Once the to the bottom of the Projectile forces have a certain value exceed, the predetermined breaking point 12d tears open, after which the projectile 11 is expelled from the cartridge case. There here also the tube 27 of the tracer llb from the High pressure space 21 is pulled out, its volume enlarged.

    In order to expel the projectile to control the cartridge case, the free end of the Tube 27 for tracer llb through a cap 29 are covered, in which several openings 30 are provided are. The cap protrudes with a small flange 31 Outside diameter of the tube 27 out, so that Expelling the projectile 11, the cap 29 on the edge of the Opening 28 remains in the high-pressure chamber 21 and not flies with the projectile. Hereby the opening 28 not as in the embodiment according to FIG Pulling out the tracer set completely released, but only in one by the dimensions by the Openings 30 predetermined extent. By appropriate Dimensioning of these openings 30 can the pressure curve can be controlled very finely.

    In the embodiment, the tube 27 of the Tracer set llb in the high pressure chamber 21 via a Route one, which is about the diameter of the tube 27th corresponds. It should be noted that this Dimensioning is arbitrary; it just depends indicates that during the expulsion of the projectile up to final release from the cartridge case enlarged becomes.

    Otherwise, by appropriate shaping, in particular Diameter, cross section and length of the rear Tracer the aerodynamic properties of Bullets are affected.

    In Figure 4 is a cross section through the bottom of the Practice ammunition shown. The reference numerals are for the individual components the same as in the previous ones Characters. The cartridge 12 or its walls in the area of High pressure room 21 are not made of steel this time, but made of aluminum, then at least the walls of the Overflow openings 22 are anodized, which is indicated by 32 is indicated.

    Claims (5)

    1. Ammunition round (1), more particularly an artillery shell, comprising a projectile (11) and a cartridge case (10) housing the latter, the projectile (11) incoporating an active charge and at the base a tracer composition (11b), and the cartridge case (10) receiving an explosive charge (13), a cartridge (12) which delimits a high-pressure chamber (21) and contains a propellant charge (14) and which is located centrally in the cartridge case (10), as well as receiving a low-pressure chamber (10a) which surrounds the cartridge (12) and is delimited by the internal walls of the cartridge case (10) and by part of the floor of the projectile (11) and is connected to the high-pressure chamber (21) via overflow openings (22), and the projectile being joined to the cartridge (12) and the latter incorporating a predetermined breaking point (12d), characterised in that the tracer composition (11b) is housed in a tube (27) which juts away centrally from the base of the projectile (11), passes through the upper wall of the cartridge (12), is supported in this wall, in a gas tight-manner and so as to be able to slide, substantially in an opening (28), and projects into the high-pressure chamber (21), with the result that breaking open the predetermined breaking point (12d) causes the tube to be withdrawn from the high-pressure chamber (21), increasing the volume of the latter.
    2. Ammunition round according to claim 1, characterised in that the overflow openings (22) opposite the high-pressure chamber (21) are provided with a physical barrier (22) which breaks open when the pressure inside the high-pressure chamber (21) reaches a certain level.
    3. Ammunition round according to claim 1 or 2, characterised in that the end of the tracer composition (11b) that projects into the high-pressure chamber (21) is closed by a cap (29) which incorporates openings (30) and is constructed in such a manner that it remains in the high-pressure chamber (21) after the projectile (11) has been expelled from the cartridge case (10), and covers the opening (28) for the tube (27) of the tracer composition (11b).
    4. Ammunition round according to any of the preceding claims, characterised in that the walls of the cartridge (12) are made of steel in the region of the high-pressure chamber (12).
    5. Ammunition round according to any of claims 1 to 3, characterised in that the walls of the cartridge (12) are made of aluminium in the region of the high-pressure chamber (21), and that at least the walls of the overflow openings (22) are anodised (at 32).
    EP19960928331 1995-07-28 1996-07-22 Fixed ammunition Expired - Lifetime EP0842390B1 (en)

    Priority Applications (3)

    Application Number Priority Date Filing Date Title
    DE1995127621 DE19527621A1 (en) 1995-07-28 1995-07-28 Cartridge ammunition
    DE19527621 1995-07-28
    PCT/DE1996/001388 WO1997005445A1 (en) 1995-07-28 1996-07-22 Fixed ammunition

    Publications (2)

    Publication Number Publication Date
    EP0842390A1 EP0842390A1 (en) 1998-05-20
    EP0842390B1 true EP0842390B1 (en) 1999-09-29

    Family

    ID=7768026

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP19960928331 Expired - Lifetime EP0842390B1 (en) 1995-07-28 1996-07-22 Fixed ammunition

    Country Status (14)

    Country Link
    US (1) US5936189A (en)
    EP (1) EP0842390B1 (en)
    JP (1) JP3904234B2 (en)
    KR (1) KR100436638B1 (en)
    AT (1) AT185192T (en)
    AU (1) AU6784996A (en)
    CA (1) CA2227987C (en)
    DE (2) DE19527621A1 (en)
    ES (1) ES2139379T3 (en)
    IL (1) IL118906A (en)
    NO (1) NO308331B1 (en)
    TR (1) TR199800124T1 (en)
    WO (1) WO1997005445A1 (en)
    ZA (1) ZA9606188B (en)

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    DE19738937C2 (en) * 1997-09-05 1999-07-29 Nico Pyrotechnik Cartridge ammunition
    SE0001588D0 (en) * 2000-04-27 2000-04-27 Comtri Ab grenade Cartridge
    DE10102624B4 (en) * 2001-01-20 2011-01-05 Rheinmetall Waffe Munition Gmbh Cartridge
    BG773Y1 (en) * 2001-09-17 2005-10-31 Страхил ГУШЛЕВ Small-size perforated cartridge
    NZ514921A (en) * 2001-10-18 2002-12-20 William James Sharplin A grenade
    FR2831256A1 (en) * 2001-10-22 2003-04-25 Guy Cognet Practice round, for firing exercises or sporting use, has cartridge case with inner chamber of reduced diameter and less explosive content
    DE10303106B4 (en) * 2002-01-29 2013-01-10 Ruag Munition barricades breaker
    AUPS182802A0 (en) * 2002-04-19 2002-05-30 Metal Storm Limited Projectile sealing arrangement
    US7004074B2 (en) * 2002-07-01 2006-02-28 Martin Electronics Controlled fluid energy delivery burst cartridge
    US7987790B1 (en) 2003-03-18 2011-08-02 Scarr Kimball R Ring airfoil glider expendable cartridge and glider launching method
    AU2003902297A0 (en) * 2003-05-13 2003-07-24 Metal Storm Limited External propellant initiation system and projectile
    SE0302916D0 (en) * 2003-11-04 2003-11-04 Comtri Teknik Ab Replaceable drive cartridge
    AU2005230669B2 (en) * 2004-04-08 2010-10-21 Rheinmetall Waffe Munition Gmbh Cartridged ammunition, especially of an average caliber
    DE102004017464B4 (en) * 2004-04-08 2006-05-18 Nico-Pyrotechnik Hanns-Jürgen Diederichs GmbH & Co. KG Patronized exercise ammunition
    DE102004020838B3 (en) * 2004-04-08 2005-06-23 Nico-Pyrotechnik Hanns-Jürgen Diederichs GmbH & Co. KG Medium-caliber cartridge munition used for practice, includes passages through casing from chamber containing propellant charge, which are filled with melting alloy
    DE102005053491B4 (en) * 2005-11-09 2015-05-13 Rheinmetall Waffe Munition Gmbh Projectile with marking of the impact point
    EP1914507A1 (en) * 2006-10-19 2008-04-23 Saab Ab An arrangement for a grenade
    DE102007025981A1 (en) * 2007-06-04 2008-12-11 Rheinmetall Waffe Munition Gmbh Cartridge ammunition, in particular exercise ammunition
    US7793591B1 (en) * 2007-06-06 2010-09-14 Martin Electronics Projectile having ignitable payload with delay column igniter
    US8661983B1 (en) 2007-07-26 2014-03-04 Kimball Rustin Scarr Ring airfoil glider with augmented stability
    US8065961B1 (en) 2007-09-18 2011-11-29 Kimball Rustin Scarr Less lethal ammunition
    FI20085083A (en) * 2008-01-31 2009-08-01 Patria Weapon Systems Oy Arrangement and method for supporting a grenade in the barrel of a rear loading weapon
    AU2010328601A1 (en) 2009-09-03 2012-02-09 Kms Consulting Llc Pressure-relief system for gun fired cannon cartridges
    US8925463B1 (en) 2009-09-03 2015-01-06 Kms Consulting, Llc Pressure relief system for gun fired cannon cartridges
    DE102009048365B3 (en) * 2009-10-06 2010-10-07 Rheinmetall Waffe Munition Gmbh Cartridge-type ammunition i.e. garnet ammunition, has projectile and casing that are connected over connection, where connection has membrane with breaking point or opening point opened during preset pressure in high pressure chamber
    KR101172842B1 (en) 2009-12-02 2012-08-09 국방과학연구소 The wing assembly and assembling method of armor piercing fin stabilized discarding sabot preventing separation for tracer
    KR101210581B1 (en) * 2010-05-14 2012-12-11 한국씨앤오테크 주식회사 Method for manufacturing empty shell and empty shell manufactured by this
    US20120186480A1 (en) * 2010-05-18 2012-07-26 Mark Allen Rogers 37mm Screw Apart Shell
    US8511232B2 (en) 2010-06-10 2013-08-20 Kimball Rustin Scarr Multifire less lethal munitions
    SG181192A1 (en) 2010-11-25 2012-06-28 Advanced Material Engineering Pte Ltd A cartridged projectile
    WO2013010675A1 (en) * 2011-07-21 2013-01-24 Diehl Bgt Defence Gmbh & Co. Kg Cartridge ammunition
    US9010248B1 (en) * 2011-12-19 2015-04-21 The United States Of America As Represented By The Secretary Of The Army 40 mm gun sleeve cartridge case for M320 grenade launcher ammunition
    DE102012014043B4 (en) 2012-07-14 2014-02-13 Diehl Bgt Defence Gmbh & Co. Kg Grenade, in particular 40 mm grenade
    WO2014203215A1 (en) * 2013-06-20 2014-12-24 Atlantis Manufacturing Management Services Proprietary Limited A grenade round
    WO2014203216A1 (en) * 2013-06-20 2014-12-24 Atlantis Manufacturing Management Services Proprietary Limited A grenade round
    DE202014105939U1 (en) 2014-12-09 2015-01-26 Kms Consulting Llc Cartridge with pressure outlet
    WO2017033072A1 (en) * 2015-08-26 2017-03-02 Atlantis Specialist Technologies Proprietary Limited Cartridge ammunition
    US9835427B2 (en) * 2016-03-09 2017-12-05 True Velocity, Inc. Two-piece primer insert for polymer ammunition
    RU2663421C1 (en) * 2017-10-05 2018-08-06 Глеб Владимирович Локшин Non-lethal ammunition
    US10466023B2 (en) 2018-03-28 2019-11-05 Ascendance International, LLC Long range large caliber frangible round for defending against UAV'S
    KR102063848B1 (en) * 2018-04-05 2020-01-08 국방과학연구소 Cartridge case with double cartridge chamber and ammunition comprising the same

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    DE8812000U1 (en) * 1988-09-22 1990-02-08 Rheinmetall Gmbh, 4000 Duesseldorf, De

    Also Published As

    Publication number Publication date
    DE59603238D1 (en) 1999-11-04
    JPH11510242A (en) 1999-09-07
    AT185192T (en) 1999-10-15
    KR19990035959A (en) 1999-05-25
    EP0842390A1 (en) 1998-05-20
    WO1997005445A1 (en) 1997-02-13
    AU6784996A (en) 1997-02-26
    CA2227987A1 (en) 1997-02-13
    NO980049D0 (en) 1998-01-06
    NO308331B1 (en) 2000-08-28
    JP3904234B2 (en) 2007-04-11
    NO980049L (en) 1998-01-06
    US5936189A (en) 1999-08-10
    ZA9606188B (en) 1997-02-10
    IL118906A (en) 2000-09-28
    KR100436638B1 (en) 2004-09-04
    CA2227987C (en) 2006-10-03
    TR199800124T1 (en) 1998-05-21
    ES2139379T3 (en) 2000-02-01
    IL118906D0 (en) 1996-10-31
    DE19527621A1 (en) 1997-01-30

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