EP0279301A1 - Projectile - Google Patents

Projectile Download PDF

Info

Publication number
EP0279301A1
EP0279301A1 EP88101728A EP88101728A EP0279301A1 EP 0279301 A1 EP0279301 A1 EP 0279301A1 EP 88101728 A EP88101728 A EP 88101728A EP 88101728 A EP88101728 A EP 88101728A EP 0279301 A1 EP0279301 A1 EP 0279301A1
Authority
EP
European Patent Office
Prior art keywords
cartridge
opening
propellant charge
projectile
base
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.)
Granted
Application number
EP88101728A
Other languages
German (de)
English (en)
Other versions
EP0279301B1 (fr
Inventor
Christof Hostert
Hans Assmann
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.)
Oregon Etablissements fuer Patentverwertung
Original Assignee
Oregon Etablissements fuer Patentverwertung
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 claimed from AT318087A external-priority patent/AT389765B/de
Application filed by Oregon Etablissements fuer Patentverwertung filed Critical Oregon Etablissements fuer Patentverwertung
Publication of EP0279301A1 publication Critical patent/EP0279301A1/fr
Application granted granted Critical
Publication of EP0279301B1 publication Critical patent/EP0279301B1/fr
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
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/10—Cartridges, i.e. cases with charge and missile with self-propelled bullet

Definitions

  • the invention relates to a projectile with a cartridge, wherein a passage opening of the cartridge base contains a squib which can be struck from the outside and which ignites a condensed propellant charge provided in the interior of the cartridge, the gases of which flow into the cartridge through at least one side gas outlet opening of the propellant charge accelerate the projectile.
  • Such bullets are known for example from AT-PSen 371 596 and 374 583.
  • the propellant charge cartridge is inserted into the opening in the base of the cartridge and the propellant charge covered by the squib to the outside.
  • the struck detonator ignites the damn propellant charge, the gases of which escape into the gas pressure chamber, so that the bullet is released from the cartridge after a corresponding pressure has been built up. Since the gas outlet openings are removed from the burning side of the propellant charge bordering the squib, the overflowing gases entrain propellant charge particles, which thereby escape combustion.
  • the portion that is clearly visible in the cartridge after firing is relatively large. Experiments have shown that fluctuations of 15% or more can result in the launch speed, which significantly impair the target safety.
  • the invention has now set itself the task of creating a projectile of the type mentioned, which is easier to manufacture, and in which a largely constant initial speed is preferably achieved by a substantially more complete combustion of the propellant charge and the target safety is improved.
  • the propellant charge cartridge is connected to the projectile and on the side facing the cartridge bottom has a cartridge bottom effecting the insulation of the propellant charge, which is provided with an ignition opening coaxial with the passage opening in the cartridge bottom.
  • the arrangement of the propellant charge cartridge on the floor significantly simplifies the manufacture of the cartridge, since these, including their very small passage opening, can be produced in a single non-cutting operation, for example by deep drawing, while the manufacture of the floor or its base part is only insignificantly complicated.
  • a preferred embodiment provides that the propellant charge cartridge is screwed into a protruding threaded connector of the base part.
  • the propellant charge cartridge is pot-shaped, has an external thread and contains a cover that covers the ignition opening and can be destroyed by the ignition jet.
  • a first preferred embodiment, in which the propellant charge cartridge has a plurality of lateral gas outlet openings, provides that the area of the cartridge base surrounding the ignition opening approximately touches the area of the cartridge base surrounding the passage opening.
  • the ignition jet of the squib penetrates through the ignition opening into the propellant charge cartridge, the installation of the ignition opening surrounding area on the base of the cartridge preventing the propellant gases from escaping directly through the ignition opening. Since the propellant charge burns off from the ignition opening, there is initially a strong insulation until the cross section of the combustion has reached the gas outlet openings on the side.
  • the ignition opening is preferably smaller than the passage opening in the cartridge base and has, for example, only about half its diameter.
  • the lateral gas outlet openings are arranged near the base of the cartridge in the peripheral wall of the propellant cartridge. After the small, first part of the propellant charge has burned off, further charge particles pass through, which are entrained by the resulting gases from the cartridge, so that the propellant charge that burns down into the depth of the cartridge, so that they are also burned. A practically complete combustion is thus achieved, so that the achievable initial speed is essentially constant.
  • a similar effect is achieved in another embodiment in that a ring of gas outlet openings is arranged in the cartridge base outside the contact area surrounding the ignition opening, the region of the cartridge base surrounding the through opening being formed inwards up to the propellant charge cartridge.
  • the propellant charge cartridge is arranged at a distance from the base of the cartridge, and the ignition opening of the base of the cartridge, which is coaxial with the passage opening of the cartridge base, also forms the gas outlet opening.
  • the distance to the cartridge floor ensures that the propellant gases escape into the gas pressure chamber. Since the ignition jet of the squib penetrates into the propellant charge cartridge through the gas outlet opening, all charge particles that are entrained by the resulting gases from the cartridge are completely burned.
  • the ignition opening forming the gas outlet opening is preferably larger than the passage opening in the base of the cartridge, for example by 2 to 3 times.
  • a further approximation to a constant initial speed can be achieved by deepening the circumference of the Ge lap can be reached, into which the edge area of the cartridge is pressed.
  • the resulting form fit between the cartridge and the projectile requires a certain gas pressure to destroy it, so that maximum pressure build-up is achieved.
  • a projectile 1 of any kind such as an explosive grenade with a delay detonator or impact detonator, a smoke grenade, a practice projectile, etc. is inserted into a cartridge 3, a gas pressure chamber 10 being formed between the base part 2 of the projectile 1 and the cartridge base 4.
  • the floor 1 is or the like with a circumferential groove 11. to form a positive connection and an edge region 12 of the cartridge 3, which, as shown, is achieved by crimping the edge or by means of embossments distributed over the circumference or by means of an annular bead.
  • the cartridge 3 is deep-drawn, for example, from an aluminum alloy, and has a central passage opening 5 in a region 16 of the cartridge base 4, into which a squib 9 is inserted.
  • a threaded connector 13 is formed, into which a propellant charge cartridge 6 is inserted, which contains the propellant charge 7.
  • the propellant charge cartridge in the cartridge base 17 has a central ignition opening 15 of small diameter and lateral gas outlet openings 8, which are provided on the inside by a cover 14 made of easily destructible material, for example made of paper, plastic or the like. are locked to prevent the falling out To prevent propellant charge 7.
  • the cartridge base 17 touches the cartridge base 4, or at most has a small distance from it that results from production inaccuracies.
  • the ignition jet of the squib 9 which is acted upon from the outside, strikes the propellant charge 7 through the openings 5 and 15, the cover 14 being destroyed.
  • the propellant charge 7 is thus ignited at the ignition opening 15, and because of the very small gap between the cartridge base 17 and the area 16 of the cartridge base 4, there is initially a high level of insulation.
  • the developing propellant gases then exit into the gas pressure chamber 10 through the side gas outlet openings 8 arranged near the cartridge base 17.
  • Propellant particles entrained by the propellant gases from the interior of the propellant charge cartridge 6 must thereby pass through the cross-section of the firing which spreads from the ignition opening 15, so that their complete combustion is ensured.
  • the gas outlet openings 8 are arranged in a ring on the cartridge base 17, with the same configuration, and run obliquely outwards.
  • the area 16 of the cartridge base 4, which protrudes somewhat inwards, ensures contact with the area of the cartridge base 17 surrounding the ignition opening.
  • the propellant charge cartridge 6 is smaller than the inner height of the cartridge 3, so that the cartridge base 17 lies at a distance from the cartridge base 4.
  • the ignition opening 15 is enlarged and at the same time forms the only gas outlet opening 8 ⁇ .
  • the propellant charge 7 is thus ignited in the gas outlet opening 8 ⁇ and the developing propellant gases emerge through the opening 8 ⁇ into the gas pressure chamber 10. From the moment of ignition, propellants must be carried along by the propellant gases Charge particles pass through the firing cross-section which extends from the opening 8 ⁇ so that their complete combustion is ensured.
  • the initial velocity given to a projectile 1 according to the invention after the positive locking 11, 12 breaks, is subject to only slight fluctuations, since an approximately constant gas pressure can be achieved, and the target reliability is significantly improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Hydrogenated Pyridines (AREA)
  • Air Bags (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP88101728A 1987-02-11 1988-02-06 Projectile Expired - Lifetime EP0279301B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT28487 1987-02-11
AT284/87 1987-02-11
AT3180/87 1987-12-03
AT318087A AT389765B (de) 1987-12-03 1987-12-03 Geschoss

Publications (2)

Publication Number Publication Date
EP0279301A1 true EP0279301A1 (fr) 1988-08-24
EP0279301B1 EP0279301B1 (fr) 1990-06-13

Family

ID=25592172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101728A Expired - Lifetime EP0279301B1 (fr) 1987-02-11 1988-02-06 Projectile

Country Status (5)

Country Link
EP (1) EP0279301B1 (fr)
AT (1) ATE53656T1 (fr)
DE (1) DE3860233D1 (fr)
MY (1) MY101488A (fr)
NO (1) NO163831C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938146A (en) * 1988-09-22 1990-07-03 Rheinmetall Gmbh Grenade-type projectile
WO1991010877A1 (fr) * 1990-01-15 1991-07-25 Udo Winter Cartouche, en particulier cartouche-grenade
DE112014002114B4 (de) * 2013-06-20 2016-06-16 Atlantis Manufacturing Management Services Proprietary Ltd. Granatpatrone

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR835605A (fr) * 1938-02-22 1938-12-27 Anciens Etablissements Marga Balle et cartouche équipée de cette balle
US3922967A (en) * 1974-03-29 1975-12-02 Avco Corp Closed-breech-gun-fired rocket-assisted projectile

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR835605A (fr) * 1938-02-22 1938-12-27 Anciens Etablissements Marga Balle et cartouche équipée de cette balle
US3922967A (en) * 1974-03-29 1975-12-02 Avco Corp Closed-breech-gun-fired rocket-assisted projectile

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DEUTSCHES WAFFEN-JOURNAL, Band 8, Nr. 1, Januar 1972, Seite 16, Schwäbisch Hall, DE; K. REINEIT: "Die S- Munition" *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938146A (en) * 1988-09-22 1990-07-03 Rheinmetall Gmbh Grenade-type projectile
WO1991010877A1 (fr) * 1990-01-15 1991-07-25 Udo Winter Cartouche, en particulier cartouche-grenade
DE112014002114B4 (de) * 2013-06-20 2016-06-16 Atlantis Manufacturing Management Services Proprietary Ltd. Granatpatrone

Also Published As

Publication number Publication date
NO880581D0 (no) 1988-02-10
MY101488A (en) 1991-11-18
NO163831C (no) 1990-07-25
NO163831B (no) 1990-04-17
DE3860233D1 (de) 1990-07-19
NO880581L (no) 1988-08-12
ATE53656T1 (de) 1990-06-15
EP0279301B1 (fr) 1990-06-13

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