EP0345420B1 - Geschoss mit Treibladungssatz - Google Patents
Geschoss mit Treibladungssatz Download PDFInfo
- 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
Links
- 230000001141 propulsive effect Effects 0.000 title 1
- 239000004033 plastic Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 12
- 239000003380 propellant Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 2
- 230000037431 insertion Effects 0.000 claims 2
- 238000001816 cooling Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 description 3
- 239000010408 film Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
- 238000003466 welding Methods 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
- 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)
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 (no) |
EP (1) | EP0345420B1 (no) |
DE (2) | DE3819640A1 (no) |
IL (1) | IL90557A (no) |
NO (1) | NO890886L (no) |
Families Citing this family (8)
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)
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 |
-
1988
- 1988-06-09 DE DE3819640A patent/DE3819640A1/de not_active Withdrawn
-
1989
- 1989-03-01 DE DE8989103536T patent/DE58900489D1/de not_active Expired - Fee Related
- 1989-03-01 EP EP89103536A patent/EP0345420B1/de not_active Expired - Lifetime
- 1989-03-02 NO NO89890886A patent/NO890886L/no unknown
- 1989-06-07 IL IL9055789A patent/IL90557A/en not_active IP Right Cessation
- 1989-06-08 US US07/362,946 patent/US4930420A/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
DUBBEL Taschenbuch für den Maschinenbau, Band 1, 1974, Seiten 613, 710, 818 * |
Also Published As
Publication number | Publication date |
---|---|
NO890886D0 (no) | 1989-03-02 |
DE58900489D1 (de) | 1992-01-09 |
NO890886L (no) | 1989-12-11 |
DE3819640A1 (de) | 1989-12-14 |
EP0345420A1 (de) | 1989-12-13 |
IL90557A (en) | 1996-08-04 |
US4930420A (en) | 1990-06-05 |
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