EP0345420B1 - Geschoss mit Treibladungssatz - Google Patents

Geschoss mit Treibladungssatz Download PDF

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Publication number
EP0345420B1
EP0345420B1 EP89103536A EP89103536A EP0345420B1 EP 0345420 B1 EP0345420 B1 EP 0345420B1 EP 89103536 A EP89103536 A EP 89103536A EP 89103536 A EP89103536 A EP 89103536A EP 0345420 B1 EP0345420 B1 EP 0345420B1
Authority
EP
European Patent Office
Prior art keywords
projectile
nozzle
base
aperture
accordance
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
EP89103536A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0345420A1 (de
Inventor
Wolfgang Meffert
Karl-Heinz Silligmann
Siegmar Fischer
Ulf Dr. Hahn
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.)
Rheinmetall Industrie AG
Original Assignee
Rheinmetall GmbH
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 Rheinmetall GmbH filed Critical Rheinmetall GmbH
Publication of EP0345420A1 publication Critical patent/EP0345420A1/de
Application granted granted Critical
Publication of EP0345420B1 publication Critical patent/EP0345420B1/de
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
    • F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
    • F42B10/38—Range-increasing arrangements
    • F42B10/40—Range-increasing arrangements with combustion of a slow-burning charge, e.g. fumers, base-bleed projectiles

Definitions

  • the invention relates to a projectile with propellant charge and floor nozzle according to the features of the preamble of claim 1.
  • Such projectiles can be so-called base-bleed projectiles with a gas generator to reduce the ground suction or post-accelerated RAP projectiles with rocket propulsion (rocket-assisted projectile).
  • a post-accelerated projectile is known, for example, from the Rheinmetall Weapons Technical Paperback, 6th edition 1983, page 489, picture 1119.
  • To achieve greater flight distances such projectiles have a propellant charge in the rear part, which, when the projectile is fired, e.g. B. is fired from a large-caliber barrel weapon in caliber 155 mm or 205 mm and gives the projectile the desired aerodynamic effect by escaping the hot propellant gases through the floor nozzle, d. H. it accelerates during the flight or reduces the overall resistance.
  • Threaded plugs made of metal or plastic and inserted or pressed-in plugs represent a known closure option, which has the disadvantage that these plugs must be removed by hand before the projectile is loaded into the weapon.
  • thin cover films made of metal, paper or plastic are also known.
  • this cover plate which has a cup-shaped outer edge
  • the thickness of the cover should be between about 0.5 and 1.0 mm.
  • Such thin and rigid films are very sensitive to mechanical stress such. B. pressure or shock, so that they tear during handling (transhipment, transport) of the projectile and can no longer fulfill their protective function against environmental influences.
  • mechanical stress such as B. pressure or shock
  • parts of a metallic cover plate will bend back into the nozzle opening after firing and become stuck there and disadvantageously change the cross section of the nozzle opening.
  • the invention has for its object to provide a cover for floor nozzles of floors described above, which on the one hand represents a safe protection against environmental influences and on the other hand allows safe ignition and trouble-free burnout of the propellant charge inside the floor.
  • the sealing washer consists of a vulcanized rubber washer in the opening of the floor nozzle or in an insert arranged there or of a plastic washer firmly inserted there in the injection molding process.
  • the sealing washer is advantageously elastically resilient against numerous external stresses and bursts without problems when the projectile is fired.
  • the sealing disk is advantageously thicker towards the edge than in the middle.
  • Claim 4 specifies the method steps for producing an injected plastic disc.
  • An artillery projectile 10 has a cylindrical, full-caliber projectile casing 12 in the central region, and the projectile tapers to the front in an ogive 14 with a tip-side scale 16.
  • a cup-shaped projectile floor 18 with a central nozzle opening 20 is provided on the rear side via a suitable connection to the projectile casing 12.
  • a propellant charge 22 (base bleed set) with a central ignition channel 24 is arranged on the rear side of the floor.
  • a sealing disk 26 made of rubber or rubber is firmly vulcanized into the nozzle opening 20 (or firmly injected from plastic, for example nylon, polyamide or polyvinyl chloride).
  • the sealing washer 26 is thicker on the peripheral edge than in the center for better fastening in the nozzle opening 20.
  • the rubber washer can also be vulcanized into a separate insert (not shown in the drawing), which is then inserted (screwed or the like) into the nozzle opening. The same applies to the plastic disc.
  • the invention is also applicable to other projectiles or missiles (missiles) for the specified purpose have rear floor nozzles and are provided with igniter arranged within the combustion chamber.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP89103536A 1988-06-09 1989-03-01 Geschoss mit Treibladungssatz Expired - Lifetime EP0345420B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3819640 1988-06-09
DE3819640A DE3819640A1 (de) 1988-06-09 1988-06-09 Geschoss mit treibladungssatz

Publications (2)

Publication Number Publication Date
EP0345420A1 EP0345420A1 (de) 1989-12-13
EP0345420B1 true EP0345420B1 (de) 1991-11-27

Family

ID=6356201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103536A Expired - Lifetime EP0345420B1 (de) 1988-06-09 1989-03-01 Geschoss mit Treibladungssatz

Country Status (5)

Country Link
US (1) US4930420A (he)
EP (1) EP0345420B1 (he)
DE (2) DE3819640A1 (he)
IL (1) IL90557A (he)
NO (1) NO890886L (he)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9216295D0 (en) * 1992-07-31 1998-05-06 Secr Defence Long range artillery range
US5353711A (en) * 1993-10-04 1994-10-11 The United States Of America As Represented By The Secretary Of The Army Extended range artillery projectile
DE19751932C2 (de) * 1997-11-22 2001-04-19 Rheinmetall W & M Gmbh Gasgenerator zur Reichweitensteigerung eines Geschosses und Geschoß mit Gasgenerator
US6125763A (en) * 1998-08-14 2000-10-03 Environmental Aeroscience Corp. Integral solid booster and hybrid thrust sustaining system and projectile incorporating the same
US8671839B2 (en) 2011-11-04 2014-03-18 Joseph M. Bunczk Projectile and munition including projectile
DE102014109077A1 (de) 2014-06-27 2015-12-31 Rheinmetall Waffe Munition Gmbh Artilleriegeschoss
DE102017105565A1 (de) 2017-03-15 2018-09-20 Rheinmetall Waffe Munition Gmbh Munitions- und Logistikkonzept für insbesondere Artilleriegeschosse
DE102018115072A1 (de) 2018-06-22 2019-12-24 Rheinmetall Waffe Munition Gmbh De- und aktivierbarer Base-Bleed

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044254A (en) * 1955-03-14 1962-07-17 Phillips Petroleum Co Rocket motor
US3369485A (en) * 1965-04-12 1968-02-20 Lockheed Aircraft Corp Thin-walled,gun-launched vehicles
US3754507A (en) * 1972-05-30 1973-08-28 Us Navy Penetrator projectile
AT317724B (de) * 1972-09-21 1974-09-10 Assmann Geb Abdichtung bei Granaten
DE2634518C2 (de) * 1976-07-31 1986-04-17 Dynamit Nobel Ag, 5210 Troisdorf Geschoß mit wenigstens einem pyrotechnischen Satz, insbesondere einem Leuchtspursatz
DE3248014A1 (de) * 1982-12-24 1984-07-05 Dynamit Nobel Ag, 5210 Troisdorf Verschlusseinheit fuer treibladungsanzuender
FR2572512B1 (fr) * 1984-10-25 1987-09-25 Luchaire Sa Dispositif, adaptable sur engins ou munitions, tels que projectiles d'artillerie, destine a reduire leur trainee de culot

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DUBBEL Taschenbuch für den Maschinenbau, Band 1, 1974, Seiten 613, 710, 818 *

Also Published As

Publication number Publication date
EP0345420A1 (de) 1989-12-13
NO890886L (no) 1989-12-11
NO890886D0 (no) 1989-03-02
IL90557A (he) 1996-08-04
US4930420A (en) 1990-06-05
DE3819640A1 (de) 1989-12-14
DE58900489D1 (de) 1992-01-09

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