EP0303198B1 - Cartouche pour expulser des liquides par pression - Google Patents

Cartouche pour expulser des liquides par pression Download PDF

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Publication number
EP0303198B1
EP0303198B1 EP88112780A EP88112780A EP0303198B1 EP 0303198 B1 EP0303198 B1 EP 0303198B1 EP 88112780 A EP88112780 A EP 88112780A EP 88112780 A EP88112780 A EP 88112780A EP 0303198 B1 EP0303198 B1 EP 0303198B1
Authority
EP
European Patent Office
Prior art keywords
closing element
cartridge
cartridge according
driving body
sabot
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
EP88112780A
Other languages
German (de)
English (en)
Other versions
EP0303198A1 (fr
Inventor
Ingolf Reuter
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.)
Mauser Werke Oberndorf GmbH
Original Assignee
Mauser Werke Oberndorf 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 Mauser Werke Oberndorf GmbH filed Critical Mauser Werke Oberndorf GmbH
Priority to AT88112780T priority Critical patent/ATE68875T1/de
Publication of EP0303198A1 publication Critical patent/EP0303198A1/fr
Application granted granted Critical
Publication of EP0303198B1 publication Critical patent/EP0303198B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B9/00—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure
    • F41B9/0003—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the pressurisation of the liquid
    • F41B9/0031—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the pressurisation of the liquid the liquid being pressurised at the moment of ejection
    • F41B9/0043—Pressurisation by explosive pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
    • E21C37/12—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid
    • 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
    • F42B5/145—Cartridges, i.e. cases with charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances

Definitions

  • the invention relates to a cartridge for expelling liquids under pressure, with a propellant charge chamber and a separating device arranged between the propellant charge chamber and a liquid chamber.
  • Such a cartridge is used in a so-called water hammer, which is a cannon-like device.
  • water hammer With such a water hammer, water columns are fired to remove residual rock cores e.g. to be solved in underground track construction. It is particularly advantageous that this device avoids the otherwise usual, dangerous spark formation and uncontrolled flying around of fragments of rock when blasting.
  • this water hammer in line jacking is carried out in such a way that a line jacking section of approximately 0.5 m to 1 m is first cut out semicircularly at the edge with the aid of a line profile cutting machine with high pressure water.
  • the core of the line remains. Holes are then drilled in this core in a pre-calculated arrangement.
  • the core of the section is now crushed with a water hammer, for which water is shot into the drilled hole at a high speed of about 1000 m / s. This creates pressures of several thousand bar in the borehole. The rock is crushed by this pressure surge.
  • This cartridge has a cylindrical liquid chamber and a propellant charge chamber upstream of this chamber and separated by a separating device.
  • the separating device is designed as a piston which bears against the inner wall of the chambers and has a cavity, the end face of which faces the liquid chamber has at least one predetermined breaking point.
  • the tip of the cartridge is shaped like a nozzle.
  • This cartridge which is formed from the propellant charge chamber, the separating element and the liquid chamber, is inserted into a firing device ready for firing, i.e. provided with propellant charge on the one hand and the liquid on the other hand. It is considered disadvantageous that the liquid is in the liquid chamber and consequently special measures are necessary to avoid the escape of liquid. In addition, there is the not inconsiderable increase in weight of such a cartridge.
  • DE-A-30 35 190 A1 discloses a shooting device which has a gun barrel which is divided into a first and a second bore section on the inside. The two bore sections are separated from each other by a cup sleeve. There is a cartridge in the first bore section for expelling the amount of water used in the second bore section. With this shooting device, a quantity of water filled into the weapon barrel and sealed by special measures is consequently fired by firing a cartridge.
  • the sabot allows separate feeding or loading of the drive components, cartridge case with ignition, powder propellant charge, sabot body, front sealing element and the amount of liquid to be driven. This results in an overall compact design of the device and the cartridge.
  • the drive components namely cartridge with sabot
  • the cartridge chamber is closed and locked by the breech.
  • the amount of liquid to be fired can simply be pumped through a radial bore in the weapon barrel and the use of a check valve between the two sabot body elements, the pressure of the liquid separating these two sabot body elements from one another at their connection point. This means that the end element in the gun barrel is moved forward to the barrel of the gun barrel and thereby lies on its outer circumference in a sealing manner against the inner circumferential surface of the gun barrel.
  • a sabot 4 is used as a separating device between a propellant charge chamber 2 and a liquid chamber 3 as a separating device.
  • this sabot 4 consists of a drive body 5 made of a plastic, for example polyamide, and the closure element 6 axially arranged on the head of the drive body 5.
  • the drive body 5 of the sabot 4 consists both of FIG. 1 and of FIG Fig. 2 essentially from a cylindrical solid body, which has a front flat end face 7, from which a conically enlarged ring 8 connects to the rear.
  • An equivalent-shaped ring 9 is located at the rear of the drive body 5, which further has through holes 10 provided parallel to the longitudinal axis of the sabot 4.
  • the outer circumferential surface 11 of the rings 8 and 9 lies tightly against the inner circumferential surface 12 of the cartridge case 13 or the inner circumferential surface 14 of the barrel 15 under slight prestress.
  • a central bore with a thread 16 is made in the front end face 7, into which a pin 17 with a predetermined breaking point 18 is screwed, which is located axially outside the drive body 5 of the sabot 4.
  • the pin 17 carries the connecting element 6, which has a spherical or spherical end face 19 to which a cylindrically shaped part 20 connects.
  • This cylindrically shaped part 20 corresponds in its outer diameter under slight prestress to the inside diameter of the gun barrel 15.
  • the cylindrical part 20 can be slightly conical towards the rear open end, so that the sealing element abuts the inner circumferential surface 14 of the gun barrel with ease of delivery 15 takes place.
  • FIG. 2 shows another type of sabot 4 with a closing element 21.
  • the drive body 5 of the sabot 4 is designed in accordance with the sabot in FIG. 1. Instead of the positive connection of the closure element 6 with the drive body 5 in FIG. 1, in FIG. 2 there is a non-positive connection between the closure body 21 and the drive body 5.
  • a blind bore 22 is made in the in turn flat end face 7 of the drive body 5.
  • the in this case made of a polyurethane foam end body 21 has a rear central pin 23 which is pressed into the blind hole 22.
  • the closing element 21 in this case according to FIG. 2 has a conical shape with a flat tip, slightly modified from the spherical or spherical end face.
  • the annular space 3 between the outer surface 25 of the ring 8 and the closure element 6 or 21 represents an enlargeable liquid chamber which is connected to a radial inlet opening 26 of the weapon barrel 24.
  • the entire cartridge consists of the sabot 4, which is inserted in the cartridge case 13 in the example of FIG. 3.
  • the propellant charge chamber 2 with the necessary propellant charge 27 is located in the cartridge case towards the rear end.
  • the ignition element 28 forms the end in the cartridge case.
  • This entire cartridge 1 is located in the cartridge chamber 29 of the weapon housing 30 with the breech, not shown here.
  • the weapon barrel 24 is locked in the weapon housing 30 in a manner not shown.
  • a check valve 31, which is connected to a hydraulic pump 32 by a pipeline 33, is arranged in the weapon barrel 24 at the essentially radial inlet opening 26.
  • Another pipe 34 is located between a liquid container 35 and the hydraulic pump 32.
  • the sabot 4 allows separate feeding and loading of the drive components, namely the cartridge case 13 with the ignition 28, the powder propellant charge 27, the drive body 5 and the front end element 21 or 6 and the liquid to be driven, for example water, from the container 35 to the liquid chamber 3.
  • the drive components namely the cartridge case 13 with the ignition 28, the powder propellant charge 27, the drive body 5 and the front end element 21 or 6 and the liquid to be driven, for example water, from the container 35 to the liquid chamber 3.
  • the entire loading process takes place as follows:
  • the drive components are fed from the breech or a corresponding feed device into the cartridge chamber 29 of the weapon barrel 24.
  • the cartridge chamber 29 is closed and locked on the back by the closure, not shown here.
  • the amount of liquid to be shot is pumped through the inlet opening 26 of the weapon barrel 24 with the interposition of a check valve 31 by a hydraulic pump 32 into the annular chamber between the closing element 21 or 6 and the drive body 5 of the sabot 4. Due to the occurring liquid pressure, the end element 21 or 6 is axially separated from the drive body 5. In the case of the end element 21, the frictional force within the bore 22 is overcome, while in the case of FIG. 1 the predetermined breaking point 18 breaks due to the fluid pressure occurring.
  • the closing element 21 or 6 Due to the liquid flowing in under pressure, the closing element 21 or 6 is now pushed forward in the gun barrel 14 while overcoming the external frictional force in the direction of the gun barrel muzzle.
  • the cylindrical part of the end element 21 or 6 is in each case sealingly and under slight pressure on the inner lateral surface 14 of the gun barrel 15. If the liquid supply is now stopped, there is no longer any pressure available for moving the closing element 21 or 6.
  • This closure element 21 or 6 remains and thus forms the front seal of the liquid in the weapon barrel 24.
  • the drive body 5 was held in place during the supply of liquid by the cartridge case 13 and forms the rear seal for the liquid.
  • the entire device or the cartridge is ready to fire.
  • this cartridge 1 is ignited, the drive body 5 of the sabot 4, the liquid column in front of the sabot 4 and the front end element 21 or 6 are driven out of the weapon barrel 24 by the powder gas pressure. This takes place at a high speed of approx. 1000 m / s.
  • the water is driven like a projectile above the sabot 4 by the pressure of the burning propellant 27.
  • this so-called water hammer is used for tunneling in mining, this water column is shot into the drill holes in the core of the line. The very high pressure surge of several thousand bar crushes the rock within the core of the section.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Nozzles (AREA)
  • Catching Or Destruction (AREA)

Claims (10)

  1. Cartouche pour l'éjection de liquides sous pression, avec une chambre de charge propulsive et un dispositif de séparation disposé entre la chambre de charge propulsive et une champre à liquide, caractérisé en ce que le dispositif de séparation est réalisé sous forme de cage propulsive (4), composée d'un corps d'entraînement (5) et d'un élément de délimitation (6,21) lui étant relié amovible frontalement, et une chambre à liquide (3), à volume expansible, qui est en correspondance avec une ouverture d'admission (26) sensiblement radiale ménagée dans le tube d'arme (24), étant prévue entre le corps d'entraînement (5) et l'élément de délimitation (6,21).
  2. Cartouche selon la revendication 1, caractérisé en ce que le corps d'entraînement (5) est relié par ajustement de forme à l'élément de délimitation (6), par une tige centrale (17) dotée d'un filetage, la tige présentant un point desdiné à la rupture (18) à l'extérieur du corps d'entraînement (5).
  3. Cartouche selon les revendications 1 et 2, caractérisé en ce que l'élément de délimitation (6) est réalisé sous forme de corps creux, avec une surface frontale sensiblement sphérique ou bombée, à laquelle se raccorde une partie de queue (20) de forme sensiblement cylindrique, dont la surface d'enveloppe extérieure appuie de façon étanche sur l'alésage du tube (15).
  4. Cartouche selon la revendication 3, caractérisé en ce que la partie de queue (20) s'agrandit de façon conique vers l'extrémité arrière ouverte.
  5. Cartouche selon la revendication 1, caractérisé en ce que le corps d'entraînement (5) est relié à l'élément de délimitation (21) par serrage, par insertion d'un tourillon d'extrémité (23) dans un alésage correspondant (22) ménagé dans la surface frontale (7) du corps d'entraînement (5).
  6. Cartouche selon les revendications 1 et 5, caractérisé en ce que l'élément de délimitation (21) est en matière synthétique.
  7. Cartouche selon la revendication 6, caractérisé en ce que l'élément de délimitation (21) est en mousse de polyuréthane.
  8. Cartouche selon les revendications 1 et 7, caractérisé en ce qu'en partant d'une surface frontale (7) plane, en liaison avec l'élément de délimitation (6,21), le corps d'entraînement (5) présente un anneau d'étanchéité (8), qui s'agrandit de façon conique jusqu'au diamètre intérieur de l'alésage du tube, dont la surface d'envelope extérieure (11) forme la chambre à liquide (3) dans l'alésage du tube (15), conjointement avec l'élément de délimitation (6,21).
  9. Cartouche selon les revendications 1 à 8, caractérisé en ce que le corps d'entraînement (5) est dissociable axialement de l'élément de délimitation (6,21), dans l'alésage du tube (15), grâce à la pression du liquide s'écoulant dans la chambre à liquide (3).
  10. Cartouche selon la revendication 1, caractérisé en ce qu'en plus du première anneau d'étanchéité (8), un deuxième anneau d'étanchéité (9) de forme équivalente est disposé sur la zone de queue du corps d'entraînement (5) et présente au moins un alésage traversant (10), parallèle à l'axe longitudinale de la cartouche.
EP88112780A 1987-08-08 1988-08-05 Cartouche pour expulser des liquides par pression Expired - Lifetime EP0303198B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88112780T ATE68875T1 (de) 1987-08-08 1988-08-05 Patrone zum austreiben von fluessigkeiten unter druck.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873726490 DE3726490A1 (de) 1987-08-08 1987-08-08 Patrone zum austreiben von fluessigkeiten unter druck
DE3726490 1987-08-08

Publications (2)

Publication Number Publication Date
EP0303198A1 EP0303198A1 (fr) 1989-02-15
EP0303198B1 true EP0303198B1 (fr) 1991-10-23

Family

ID=6333399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88112780A Expired - Lifetime EP0303198B1 (fr) 1987-08-08 1988-08-05 Cartouche pour expulser des liquides par pression

Country Status (7)

Country Link
US (1) US4909152A (fr)
EP (1) EP0303198B1 (fr)
JP (1) JPS6449897A (fr)
AT (1) ATE68875T1 (fr)
CA (1) CA1306243C (fr)
DE (2) DE3726490A1 (fr)
NO (1) NO165163C (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3926051A1 (de) * 1989-08-07 1991-02-14 Mauser Werke Oberndorf Patrone zum austreiben von fluessigkeiten unter druck
FR2661492B1 (fr) * 1990-04-26 1993-05-14 Lavoix Pierre Cartouche pour canon a eau.
US5134921A (en) * 1990-06-24 1992-08-04 Custom Engineering And Designs, Inc. Water cannon for neutralizing explosive devices, and replaceable cartridge therefor
US5498160A (en) * 1994-07-07 1996-03-12 The United States Of America As Represented By The Secretary Of The Army Training projectile
US5611605A (en) * 1995-09-15 1997-03-18 Mccarthy; Donald E. Method apparatus and cartridge for non-explosive rock fragmentation
DE19641711A1 (de) * 1996-10-10 1998-04-16 Lothar Dipl Ing Huegin Impulslöschgerät
US6405628B1 (en) * 1999-08-17 2002-06-18 Apti, Inc. Method and apparatus for penetrating hard materials
US6681675B2 (en) 2000-03-03 2004-01-27 Teledyne Brown Engineering, Inc. Remote hazardous devices interdiction process and apparatus
US20040132383A1 (en) * 2002-08-14 2004-07-08 Langford Mark A. Fluid jet cutting system
US20050066849A1 (en) * 2003-09-29 2005-03-31 Kapeles John A. Frangible non-lethal projectile
CA2921708C (fr) 2016-02-24 2020-04-14 Simon Tremblay Systeme d'armes a projection electrique
DE102023001824A1 (de) 2022-07-17 2024-02-22 Kastriot Merlaku Wasserpistole

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US692819A (en) * 1900-04-21 1902-02-11 David G Knittel Means for effecting noiseless discharge of guns.
US1741901A (en) * 1927-12-21 1929-12-31 Reginald J Alden Cartridge
US2530805A (en) * 1946-10-02 1950-11-21 Mccullough Tool Company Casing perforating gun
GB1263522A (en) * 1969-02-11 1972-02-09 Walter Arthur Foges Air-gun projectiles
US3650213A (en) * 1969-06-19 1972-03-21 Aai Corp Frangible filled-projectile ammunition
US3732821A (en) * 1971-05-25 1973-05-15 Us Army Nose ogive for nonlethal projectile
US3776137A (en) * 1971-09-24 1973-12-04 Aai Corp Projectile and cartridge arrangement
SE395746B (sv) * 1975-09-19 1977-08-22 Atlas Copco Ab Sett och anordning for brytning av ett fast material
GB2030684B (en) * 1978-09-28 1983-01-06 Hanson R Bonb circuit disrupting device and method
DE3035190A1 (de) * 1980-09-18 1982-04-29 Gerd 6200 Wiesbaden Ester Schussgeraet zum unschaedlichmachen von spregkoerpern u. dgl.
US4449458A (en) * 1982-03-22 1984-05-22 The United States Of America As Represented By The Secretary Of The Navy Cartridge case closure plug
DE3545737C1 (en) * 1985-12-21 1987-02-26 Dynamit Nobel Ag Cartridge for expelling fluids under pressure

Also Published As

Publication number Publication date
NO165163C (no) 1991-01-09
JPS6449897A (en) 1989-02-27
NO883464L (no) 1989-02-09
DE3865772D1 (de) 1991-11-28
EP0303198A1 (fr) 1989-02-15
CA1306243C (fr) 1992-08-11
NO883464D0 (no) 1988-08-04
DE3726490C2 (fr) 1989-05-11
NO165163B (no) 1990-09-24
ATE68875T1 (de) 1991-11-15
US4909152A (en) 1990-03-20
DE3726490A1 (de) 1989-02-16

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