EP2324322A1 - Mörsergranate - Google Patents
MörsergranateInfo
- Publication number
- EP2324322A1 EP2324322A1 EP09778257A EP09778257A EP2324322A1 EP 2324322 A1 EP2324322 A1 EP 2324322A1 EP 09778257 A EP09778257 A EP 09778257A EP 09778257 A EP09778257 A EP 09778257A EP 2324322 A1 EP2324322 A1 EP 2324322A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mortar
- sealing ring
- mortar shell
- annular element
- annular
- 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
Links
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 51
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 9
- 239000003380 propellant Substances 0.000 claims abstract description 7
- 239000013013 elastic material Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 238000010304 firing Methods 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000000284 resting effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000012885 constant function Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/02—Driving bands; Rotating bands
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
- F42B30/08—Ordnance projectiles or missiles, e.g. shells
- F42B30/10—Mortar projectiles
Definitions
- the invention relates to a mortar shell according to the features of the preamble of claim 1.
- Mortar shells which are fired from mortar with a smooth tube, must each have an outer diameter which is smaller than the caliber of the gun nrohres, so that the shell can be loaded from the mouth of the gun barrel due to the Geunteremployeds. Otherwise, when charging below the mortar shell an air cushion would form, which absorbs the mortar shell in an undesirable manner.
- This demand for a sufficiently large game to ensure a loading of the mortar from the mouth of the gun barrel is contrary to the demand to choose the game so small that when firing the mortar shells as far as possible no propellant gases can stroke past the mortar shell.
- sealing ring (obturator ring) made of plastic in this recess.
- This sealing ring is designed so that when loading the corresponding mortar a sufficiently large game clearance permits and that only when firing the mortar shell the propellant gases press the sealing ring to the outside, so that it is pressed against the inner surface of the gun barrel and forms a gas seal.
- the sealing rings currently used each consist of a cylindrical annular body having a straight or oblique separating slot and is designed such that the respective sealing ring can be easily inserted into the corresponding annular recess of the mortar shell.
- Such slotted sealing rings must then be glued together along their parting surfaces to avoid that already when inserting the mortar shell into the barrel unwanted widening of the sealing ring - -
- the invention has for its object to provide a mortar shell of the type mentioned, in which the loading of the grenade, the formation of a rear air cushion in the corresponding gun barrel is reliably avoided and in which the shooting of the grenade a defined expansion of the sealing ring is ensured.
- the invention is based essentially on the idea that the previously known sealing ring is stabilized by an annular element comprising it.
- the annular element consists of a material which is selected such that the annular element holds the sealing ring when loading the mortar shell in a predetermined rest position, so that the mortar shell can fall freely into the barrel.
- the annular element does not hinder the expansion of the sealing ring when shooting the mortar shell or not essential because due to the high gas pressure of the propellant charge gases, the annular element is pressed together with the sealing ring to the outside against the inner surface of the gun barrel.
- the outer surface of the sealing ring has a circumferential groove-shaped recess in which the annular element is mounted.
- the annular element may be an O-ring made of an elastic material, e.g. an elastomer.
- the annular element can also be an annular spring (for example made of metal).
- the sealing ring may consist of a cylindrical annular body, which is separated by a straight or oblique slot for better sliding on the mortar shell in a conventional manner.
- Sealing ring unlike the prior art, not to be glued together.
- FIG. 1 shows the side view of a mortar shell according to the invention with sealing ring
- Figure 2 is an enlarged view of the designated in Figure 1 with 6 sealing ring.
- FIG. 3 shows a front view of the sealing ring shown in Figure 2
- 1 denotes a mortar shell comprising a warhead 2, a tail unit 3 and a projectile fuze 4.
- the warhead 2 has a circumferential annular depression 5 (obturator groove), in which an existing of an elastic material sealing ring 6 (obturator with elastic compensation element) is mounted. This sealing ring rests with sufficient axial and radial play in the obturator groove 5.
- the sealing ring 6 consists of preferably two individual components, the body 7 made of a tough-elastic plastic with a separation slot T adapted to the respective application (longitudinal or transverse slot) and an elastic compensation element with an O-ring 9 also adapted to the respective application an elastomeric material ( Figures 2, 4).
- the elastomer is selected such that the O-ring 9 holds the sealing ring 6 when loading the mortar shell 1 in a rest position, resulting in a game of game, such that the mortar shell 1 can fall freely into the mortar barrel.
- the O-ring 9 hinders the mortar shell 1 from being fired the expansion of the sealing ring 6 is not or not essential, since due to the high gas pressure of the propellant charge gases of the O-ring 9 is pressed with the sealing ring 6 outwardly against the inner surface of the mortar tube.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Gasket Seals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810046057 DE102008046057A1 (de) | 2008-09-08 | 2008-09-08 | Mörsergranate |
PCT/EP2009/006331 WO2010025891A1 (de) | 2008-09-08 | 2009-09-02 | Mörsergranate |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2324322A1 true EP2324322A1 (de) | 2011-05-25 |
EP2324322B1 EP2324322B1 (de) | 2015-11-04 |
Family
ID=41340987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09778257.7A Active EP2324322B1 (de) | 2008-09-08 | 2009-09-02 | Mörsergranate |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2324322B1 (de) |
DE (1) | DE102008046057A1 (de) |
WO (1) | WO2010025891A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2566707C2 (ru) * | 2013-08-30 | 2015-10-27 | Федеральное государственное казенное учреждение "3 Центральный научно-исследовательский институт" Министерства обороны Российской Федерации | Корректируемая минометная мина |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7322822U (de) * | 1973-06-19 | 1977-01-20 | Fa. Diehl, 8500 Nuernberg | Geschoss-fuehrungsring |
NO147159L (de) * | 1979-09-08 | 1900-01-01 | ||
US4478128A (en) * | 1981-05-11 | 1984-10-23 | The United States Of America As Represented By The Secretary Of The Navy | Projectile carrier for liquid propellant gun |
AT388047B (de) * | 1987-09-28 | 1989-04-25 | Assmann Geb | Dichtring fuer eine granate |
SE518516C2 (sv) * | 2001-04-19 | 2002-10-22 | Bofors Defence Ab | Sätt och anordning för förbättring av ytterballistiken för en artillerigranat |
DE10338184B4 (de) * | 2003-08-20 | 2007-02-08 | Rheinmetall Waffe Munition Gmbh | Mörsergranate |
-
2008
- 2008-09-08 DE DE200810046057 patent/DE102008046057A1/de not_active Withdrawn
-
2009
- 2009-09-02 WO PCT/EP2009/006331 patent/WO2010025891A1/de active Application Filing
- 2009-09-02 EP EP09778257.7A patent/EP2324322B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2010025891A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2566707C2 (ru) * | 2013-08-30 | 2015-10-27 | Федеральное государственное казенное учреждение "3 Центральный научно-исследовательский институт" Министерства обороны Российской Федерации | Корректируемая минометная мина |
Also Published As
Publication number | Publication date |
---|---|
WO2010025891A1 (de) | 2010-03-11 |
DE102008046057A1 (de) | 2010-03-11 |
EP2324322B1 (de) | 2015-11-04 |
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