EP0364833B1 - Projectile comprising an ejecting charge - Google Patents

Projectile comprising an ejecting charge Download PDF

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Publication number
EP0364833B1
EP0364833B1 EP89118567A EP89118567A EP0364833B1 EP 0364833 B1 EP0364833 B1 EP 0364833B1 EP 89118567 A EP89118567 A EP 89118567A EP 89118567 A EP89118567 A EP 89118567A EP 0364833 B1 EP0364833 B1 EP 0364833B1
Authority
EP
European Patent Office
Prior art keywords
projectile
reception body
ejection charge
charge
cup
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
EP89118567A
Other languages
German (de)
French (fr)
Other versions
EP0364833A1 (en
Inventor
Gerald Rieger
Helmut Hammer
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.)
Diehl Verwaltungs Stiftung
Original Assignee
Diehl GmbH and Co
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
Application filed by Diehl GmbH and Co filed Critical Diehl GmbH and Co
Publication of EP0364833A1 publication Critical patent/EP0364833A1/en
Application granted granted Critical
Publication of EP0364833B1 publication Critical patent/EP0364833B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F42C19/0838—Primers or igniters for the initiation or the explosive charge in a warhead
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, 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
    • F42B12/56—Projectiles, 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 for dispensing discrete solid bodies
    • F42B12/58—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles

Definitions

  • the invention relates to a projectile with a discharge charge for discharging a payload.
  • the discharge charge In the case of a projectile, the discharge charge is intended to develop gas under high pressure for a comparatively long time in order to safely push out the payload. This requires safe insulation at the start of the combustion of the exhaust charge.
  • the discharge charge is accommodated in a thick-walled aluminum cup.
  • the bowl bursts into coarse fragments when it burns. These can damage the payload to be ejected.
  • EP-A-0 271 480 faulty ignition of the delay element by torn off aluminum sections is to be prevented.
  • the ejection charge is arranged in a steel bowl which has a plurality of openings in the bottom, that is to say only in the longitudinal direction, the openings being covered with an aluminum foil. The openings are offset with respect to a central ignition opening of a subsequent delay element. Faulty ignition of the delay element cannot, however, be ruled out due to the free distance between the bottom of the cup and the delay element.
  • the object of the invention is to propose a projectile in which the ejection charge develops a high enough pressure to eject the payload, but does not burst its shell into fragments which can damage the payload.
  • the receiving body forms the necessary insulation for the discharge charge.
  • the wall parts of the weak-walled cup located in the area of the openings are pushed through the openings as a result of the pressure development, and the developing propellant gas flows through the openings and leads to the ejection of the payload.
  • the pressed-through, small wall parts of the bowl are harmless for the payload.
  • FIG. 1 shows the head area of a projectile in longitudinal section.
  • a projectile jacket (1) has an internal thread (2).
  • a cylindrical receiving body (3) with a thread (4) is screwed into the internal thread (2).
  • the receiving body (3) protrudes into a pressure chamber (5) of the projectile jacket (1).
  • the receiving body (3) is thick-walled and designed so that it is not destroyed when an ejection charge burns up.
  • a plurality of openings (6) are provided on the receiving body (3) and are distributed in the longitudinal direction and in the circumferential direction on the receiving body (3).
  • the receiving body (3) has a bottom (7) into which a piece of felt (8) and an intermediate plate (9) are inserted.
  • An ejection charge (10) is inserted into the receiving body (3) and contains an NC propellant charge powder (12) in a weak-walled bowl (11).
  • the bowl (11) consists, for example, of aluminum or cardboard.
  • the cup (11) is closed at the top with a lid (13) made of aluminum or cardboard.
  • An ignition device (14) is screwed into the internal thread (2) adjacent to the cover (13).
  • a payload (15) to be ejected is mounted on the floor (7) in the projectile jacket (1).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Description

Die Erfindung bezieht sich auf ein Geschoß mit einer Ausstoßladung zum Ausstoßen einer Nutzlast.The invention relates to a projectile with a discharge charge for discharging a payload.

Bei einem Geschoß soll die Ausstoßladung zum sicheren Ausschieben der Nutzlast über eine vergleichsweise lange Zeit Gas hohen Drucks entwickeln. Hierfür ist eine sichere Verdämmung zu Beginn des Abbrands der Ausstoßladung notwendig. Nach dem herkömmlichen Stand der Technik ist die Ausstoßladung hierfür in einem dickwandigen Napf aus Aluminium untergebracht. Der Napf zerbirst beim Abbrand zu groben Fragmenten. Diese können die auszustoßende Nutzlast beschädigen. Entsprechend der EP-A-0 271 480 soll eine fehlerhafte Zündung des Verzögerungselementes durch abgerissene Aluminiumabschnitte verhindert werden. Hierzu ist in einem Napf aus Stahl, der im Boden, also nur in Längsrichtung, mehrere Öffnungen aufweist die Ausstoßladung angeordnet, wobei die Öffnungen mit einer Aluminiumfolie abgedeckt sind. Die Öffnungen liegen in Bezug auf eine zentrale Anzündöffnung eines nachfolgenden Verzögerungselementes versetzt. Eine fehlerhafte Zündung des Verzögerungselementes läßt sich jedoch nicht aufgrund des freien Abstandes zwischen dem Boden des Napfes und dem Verzögerungselement ausschließen.In the case of a projectile, the discharge charge is intended to develop gas under high pressure for a comparatively long time in order to safely push out the payload. This requires safe insulation at the start of the combustion of the exhaust charge. According to the conventional state of the art, the discharge charge is accommodated in a thick-walled aluminum cup. The bowl bursts into coarse fragments when it burns. These can damage the payload to be ejected. According to EP-A-0 271 480, faulty ignition of the delay element by torn off aluminum sections is to be prevented. For this purpose, the ejection charge is arranged in a steel bowl which has a plurality of openings in the bottom, that is to say only in the longitudinal direction, the openings being covered with an aluminum foil. The openings are offset with respect to a central ignition opening of a subsequent delay element. Faulty ignition of the delay element cannot, however, be ruled out due to the free distance between the bottom of the cup and the delay element.

Aufgabe der Erfindung ist es, ein Geschoß vorzuschlagen, bei dem die Ausstoßladung zwar einen zum Ausstoßen der Nutzlast hinreichend andauernden und hohen Druck entwickelt, jedoch ihre Hülle nicht in solche Fragmente zerbirst, die die Nutzlast schädigen können.The object of the invention is to propose a projectile in which the ejection charge develops a high enough pressure to eject the payload, but does not burst its shell into fragments which can damage the payload.

Die Erfindung löst diese Aufgabe entsprechend den Merkmalen des Anspruches 1.The invention solves this problem in accordance with the features of claim 1.

Der Aufnahmekörper bildet die nötige Verdämmung für die Ausstoßladung. Beim Abbrand der Ausstoßladung werden infolge der Druckentwicklung die im Bereich der Öffnungen liegenden Wandteile des schwachwandigen Napfes durch die Öffnungen durchgedrückt und das sich entwickelnde Treibgas strömt durch die Öffnungen und führt zum Ausstoß der Nutzlast. Die durchgedrückten, kleinen Wandteile des Napfes sind für die Nutzlast unschädlich.The receiving body forms the necessary insulation for the discharge charge. When the ejection charge burns off, the wall parts of the weak-walled cup located in the area of the openings are pushed through the openings as a result of the pressure development, and the developing propellant gas flows through the openings and leads to the ejection of the payload. The pressed-through, small wall parts of the bowl are harmless for the payload.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und der folgenden Beschreibung eines Ausführungsbeispiels. Die Figur zeigt den Kopfbereich eines Geschosses im Längsschnitt.Advantageous refinements of the invention result from the subclaims and the following description of an exemplary embodiment. The figure shows the head area of a projectile in longitudinal section.

Ein Geschoßmantel(1) weist ein Innengewinde(2) auf. In das Innengewinde(2) ist ein zylindrischer Aufnahmekörper(3) mit einem Gewinde(4) eingeschraubt. Der Aufnahmekörper(3) ragt in einen Druckraum(5) des Geschoßmantels(1) Der Aufnahmekörper(3) ist dickwandig und so stabil gestaltet, daß er beim Abbrand einer Ausstoßladung nicht zerstört wird. Am Aufnahnekörper(3) ist eine Vielzahl von Öffnungen(6) vorgesehen, die in Längsrichtung und in Umfangsrichtung am Aufnahmekörper(3) verteilt sind.A projectile jacket (1) has an internal thread (2). A cylindrical receiving body (3) with a thread (4) is screwed into the internal thread (2). The receiving body (3) protrudes into a pressure chamber (5) of the projectile jacket (1). The receiving body (3) is thick-walled and designed so that it is not destroyed when an ejection charge burns up. A plurality of openings (6) are provided on the receiving body (3) and are distributed in the longitudinal direction and in the circumferential direction on the receiving body (3).

Der Aufnahmekörper(3) weist einen Boden(7) auf, in den ein Filzstück(8) und eine Zwischenplatte(9) eingelegt sind. In den Aufnahmekörper(3) ist eine Ausstoßladung(10) eingeschoben, die in einem schwachwandigen Napf(11) ein NC-Treibladungspulver(12) enthält. Der Napf (11) besteht beispielsweise aus Aluminium oder Pappe. Oben ist der Napf(11) mit einem Deckel(13) aus Aluminium oder Pappe abgeschlossen. An den Deckel(13) angrenzend ist in das Innengewinde(2) eine Zündeinrichtung(14) eingeschraubt.The receiving body (3) has a bottom (7) into which a piece of felt (8) and an intermediate plate (9) are inserted. An ejection charge (10) is inserted into the receiving body (3) and contains an NC propellant charge powder (12) in a weak-walled bowl (11). The bowl (11) consists, for example, of aluminum or cardboard. The cup (11) is closed at the top with a lid (13) made of aluminum or cardboard. An ignition device (14) is screwed into the internal thread (2) adjacent to the cover (13).

An den Boden(7) anschließend ist im Geschoßmantel(1) eine auszustoßende Nutzlast(15) gelagert.A payload (15) to be ejected is mounted on the floor (7) in the projectile jacket (1).

Die Funktionsweise ist etwa folgende:
Ist das Treibladungspulver(12) von der Zündeinrichtung(14) gezündet, dann entwickelt sich in diesem ein Druck, der die im Bereich der Öffnungen(6) liegenden Wandtei le des Napfes(11) nacheinander durch die Öffnungen(6) brechen läßt. Durch die Öffnungen(6) strömt Treibgas in den Druckraum(5) Die Nutzlast(15) wird dadurch ausgeschoben.The way it works is as follows:
If the propellant powder (12) is ignited by the ignition device (14), then a pressure develops in it, which allows the wall parts of the bowl (11) lying in the region of the openings (6) to break through the openings (6) one after the other. Propellant gas flows through the openings (6) into the pressure chamber (5). The payload (15) is thereby pushed out.

Claims (5)

  1. A projectile having an ejection charge for ejecting a useful load (15), in which respect a reception body (3) for the ejection charge (10) which withstands the development of pressure upon the deflagration of the ejection charge (10) is fastened in the projectile (1), the reception body (3) has a multiplicity of apertures (6) which are covered by a burstable component (11) and through which the propellant gas developed upon the deflagration of the ejection charge (10) flows off, the apertures (6) are distributed in the longitudinal direction and in the circumferential direction on the cylindrical reception body (3), in which respect the aperture (6) is tamped in the longitudinal direction by means of an intermediate plate (9) and a piece of felt (8), and the ejection charge (10) is inserted in a weak-walled burstable cup (11) into the reception body (3).
  2. A projectile according to claim 1, characterised in that the reception body (3) is fastened by means of a thread (4) in the projectile jacket (1).
  3. A projectile according to claim 1, characterised in that the cup (11) is supported by way of the piece of felt (8) and the intermediate plate (9) against the base (7) of the reception body (3) and in that a detonating device (14) is arranged at the open end, lying opposite to the base (7), of the reception body (3) in the case of the ejection charge (10).
  4. A projectile according to claims 1 and 2, characterised in that the detonating device (14) and the reception body (3) are screwed into the same thread (2) of the projectile jacket (1).
  5. A projectile according to claim 1, characterised in that the cup (11) consists of aluminium or cardboard.
EP89118567A 1988-10-15 1989-10-06 Projectile comprising an ejecting charge Expired - Lifetime EP0364833B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3835150 1988-10-15
DE3835150A DE3835150A1 (en) 1988-10-15 1988-10-15 FLOOR WITH AN EXHAUST

Publications (2)

Publication Number Publication Date
EP0364833A1 EP0364833A1 (en) 1990-04-25
EP0364833B1 true EP0364833B1 (en) 1993-12-29

Family

ID=6365188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89118567A Expired - Lifetime EP0364833B1 (en) 1988-10-15 1989-10-06 Projectile comprising an ejecting charge

Country Status (4)

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US (1) US5000095A (en)
EP (1) EP0364833B1 (en)
DE (2) DE3835150A1 (en)
NO (1) NO893682L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6105505A (en) * 1998-06-17 2000-08-22 Lockheed Martin Corporation Hard target incendiary projectile
DE10039988B4 (en) * 2000-08-16 2006-12-14 Rheinmetall Waffe Munition Gmbh Ejector for ejecting submunitions from a projectile
US7168368B1 (en) * 2004-05-06 2007-01-30 The United States Of America As Represented By The Secretary Of The Navy Apparatus for expelling a payload from a warhead
DE102011103805B4 (en) * 2011-06-01 2017-10-26 Rheinmetall Waffe Munition Gmbh Firing amplifier, in particular for an artillery projectile

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455380A (en) * 1945-05-07 1948-12-07 Leo T Meister Method of manufacturing primers
US2454281A (en) * 1945-11-01 1948-11-23 Clarence C Hicks Antipersonnel artillery mine
US3151447A (en) * 1960-08-12 1964-10-06 Aerojet General Co Igniter device
FR2343987A1 (en) * 1976-03-08 1977-10-07 France Etat Tubular primer for artillery ammunition propellant - has axial bore and side vents through combustible ensuring uniform ignition
DE2854120A1 (en) * 1978-12-15 1980-06-19 Messerschmitt Boelkow Blohm Gas generator system for warhead - has perforated tube through main charges with plugs forming chambers and holding generator gases
DE3048618A1 (en) * 1980-12-23 1982-07-22 Dynamit Nobel Ag, 5210 Troisdorf Missile with bars forming payload - has body destroyed by gas pressure securing bars between plate and base
SE8106719L (en) * 1981-11-12 1983-05-13 Foerenade Fabriksverken PROJECTILE
IN169266B (en) * 1985-10-22 1991-09-21 Royal Ordnance Plc
FR2591735B1 (en) * 1985-12-17 1989-09-15 Thomson Brandt Armements PYROTECHNIC GAS GENERATOR AND USE IN A DEVICE EJECTING UNMUNITION OF A MILITARY LOAD
DE3616410A1 (en) * 1986-05-15 1987-11-19 Rheinmetall Gmbh PAYLOAD FLOOR FOR EXHAUSTABLE SUBMUNITION
AT396992B (en) * 1986-12-04 1994-01-25 Hirtenberger Ag LUMINOUS GRENADE

Also Published As

Publication number Publication date
DE58906560D1 (en) 1994-02-10
NO893682L (en) 1990-04-17
NO893682D0 (en) 1989-09-14
DE3835150A1 (en) 1990-04-26
US5000095A (en) 1991-03-19
EP0364833A1 (en) 1990-04-25

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