EP1008830A1 - Unterwasserschutzladung - Google Patents

Unterwasserschutzladung Download PDF

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Publication number
EP1008830A1
EP1008830A1 EP99403082A EP99403082A EP1008830A1 EP 1008830 A1 EP1008830 A1 EP 1008830A1 EP 99403082 A EP99403082 A EP 99403082A EP 99403082 A EP99403082 A EP 99403082A EP 1008830 A1 EP1008830 A1 EP 1008830A1
Authority
EP
European Patent Office
Prior art keywords
container
charge
opening
underwater protection
load
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
EP99403082A
Other languages
English (en)
French (fr)
Other versions
EP1008830B1 (de
Inventor
Jean-Luc Renaud-Bezot
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.)
Giat Industries SA
Original Assignee
Giat Industries SA
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 Giat Industries SA filed Critical Giat Industries SA
Publication of EP1008830A1 publication Critical patent/EP1008830A1/de
Application granted granted Critical
Publication of EP1008830B1 publication Critical patent/EP1008830B1/de
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
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H11/00—Defence installations; Defence devices
    • F41H11/02—Anti-aircraft or anti-guided missile or anti-torpedo defence installations or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B22/00—Marine mines, e.g. launched by surface vessels or submarines

Definitions

  • the technical field of the invention is that of fillers underwater protection.
  • Such charges are generally deployed around a sensitive area, for example an anchorage area, and are intended to protect this area against intrusions by combat swimmers or under vehicles TV sailors operated.
  • the solution implemented today consists of deploy mines or depth charges around the area to protect.
  • Such mines or grenades contain a quantity significant amount of explosive (greater than or equal to 0.5 kg). Their implementation and storage are therefore delicate, in particular if they are to be carried by ships. In addition the recovery of these mines after the operation is made all the more harder than mines need to be disarmed or disabled.
  • the load according to the invention uses only one reduced amount of explosive while being effective comparable to that of known systems.
  • the subject of the invention is a protective charge underwater which is characterized in that it includes a container containing a compressed gas and means opening this container.
  • the opening means may include a pyrotechnic charge placed near a container wall.
  • the pyrotechnic charge may be activated by a firing device, itself connected to means of control associated with detection means.
  • the firing device may include a shutter interruption of the pyrotechnic chain whose displacement will be caused by motor means which will be controlled by the control means to allow the passage of the shutter from a misaligned security position to an armed position and possibly returning from the armed position to a position misaligned.
  • the charge may include a means of flotation, such as a balloon, which will communicate with the container through a valve whose opening will be controlled by means of control to allow the inflation of the flotation means from compressed gas.
  • a means of flotation such as a balloon
  • the valve may be made up of part of the interruption shutter which closes an opening of the container, the flap then being able to an appropriate action of the motor means adopt a third so-called neutralization position in which a piercing the flap is placed opposite the opening of the container and connects it to the flotation means.
  • the load may include a means for receiving remote control orders, means connected to the control means and making it possible to control at distance the passage of the shutter from its armed position to its safety position or vice versa.
  • a protective load 1 underwater comprises a container 2 containing a compressed gas 3.
  • the container is a bottle made of metal and the gas is preferably an inert gas or compressed air at a pressure which will be at least equal double the pressure corresponding to the depth maximum intended use (for example a pressure of minus 1 MegaPascal).
  • the volume of the container will be preferably at least one liter.
  • the container has an opening 2a which is closed by a plug 4 fitted with a valve 5 or tap whose opening or the closure is caused by a motorization 6.
  • the motorized valve 5 is shown here only schematically, such a valve being well known to man of the trade and readily available commercially.
  • the valve 5 allows the interior of the container 2 with an inflatable envelope 7 produced by rubber example and which is shown here in the state deflated.
  • the load 1 also includes means for opening the container 2 which are constituted here by a load formed of dihedral cutout 8 which is arranged along one of the longitudinal generatrixes of container 2, parallel to axis 9 of the container.
  • the charge formed comprises a dihedral coating 10 applied to an explosive 11.
  • the explosive can be initiated by means of a primer 12 carried by a shutter for interrupting a pyrotechnic chain 13 (see Figure 1a).
  • the flap 13 is rotatably mounted relative to the housing 14 of the load and it is rotated by a motor 15 which will advantageously be an electric motor, such as a step-by-step engine.
  • the motorization 6 and the motor 15 are supplied, at through electrical connections 17 and 18 respectively, by electronic control means 16, such as a computer controlling a power unit capable of supplying the energy needed by the motors.
  • electronic control means 16 such as a computer controlling a power unit capable of supplying the energy needed by the motors.
  • the control means 16 are associated with means electric power supply (not shown), such only batteries, which could advantageously be here batteries activated by immersion in sea water.
  • the control means also ensure the initiation of the electrical primer 12 through the electrical connection 19 and in response to the detection of a given target.
  • the control means 16 are therefore associated with means of detection 20, acoustic (microphone) and / or magnetic (magnetometer).
  • the control means therefore also include a unit 21 for processing the signals supplied by the means of detection.
  • This unit contains memory algorithms comparison between detected signals and different signals characteristics of targets which are also stored.
  • control means ensure the initiation of the primer 12, therefore of the dihedral cutting charge 8.
  • each load will be positioned at a different depth (by suitable filling of ballasts of each load).
  • the means of command are programmed according to the target (s) against which the ship must be protected. Way to command is activated, for example as a result of immersion batteries that activate these, which ensures the power supply to the control means.
  • Activation could alternatively be caused by the load arrives at the desired depth or at the by means of a chronometry.
  • the control means then actuate the motor 15 which ensures the passage of the flap 13 in the armed position at the end an appropriate time interval giving security of pose (for example of the order of a few minutes).
  • the detection means 20 then provide a monitoring of the sea in the vicinity of each load of protection.
  • the control means 16 When a target 23 (for example here a vehicle teleoperated) is detected by the detection means of one of the charges (here charge 1d), the control means 16 cause initiation of primer 15 which triggers the cutting charge 8. This cuts the wall of the container 2 and the pressurized gas 3 is suddenly released out of the container.
  • a target 23 for example here a vehicle teleoperated
  • the control means 16 cause initiation of primer 15 which triggers the cutting charge 8. This cuts the wall of the container 2 and the pressurized gas 3 is suddenly released out of the container.
  • the bubbles create shock (sound) waves which propagate very quickly in the sea and whose power is sufficient to damage or destabilize vehicles remote operators passing nearby.
  • the effectiveness of such charge against combat swimmers is also important.
  • the triggering of charges also has the effect of trigger the alert on the ship 22.
  • control means 16 When the monitoring period is over, by example at the end of a time interval programmed during setting up the loads, the control means 16 actuate the motorization 6 of the valve 5. The gas 3 under pressure can then inflate the envelope 7 which deploys in outside the load and forms a floatation balloon 24.
  • the control means will also be defined in such a way so that when the motorization is activated for cause the lifting of the loads, the motor 15 is also controlled so as to bring the flap 13 into a safety position in which the primer 12 will be misaligned with the explosive charge 11. The charge of protection is therefore completely neutralized and it can be recovered without risk.
  • the advantage of the filler according to the invention is that it is possible using a small amount of explosive (approximately 50 to 100 g) to obtain an efficiency comparable to that of a conventional charge using more than 500 g of explosive. Such result is obtained thanks to the pressurized gas contained in the container and whose abrupt release by the charge of cutting causes a shock and sound effect comparable to that of the explosion of a stronger charge.
  • Figures 3 to 5 show a second mode of realization of a protective load according to the invention.
  • This embodiment differs from the previous one in that it uses only one motor 25 to arm the load or to raise it.
  • this load comprises a sector 26 pivoting around an axis 27 relative to a support 28 (in Figure 3 the support 28 is partially cut to show the sector 26).
  • Sector 26 has at its upper part a toothing 29 on which is driven a pinion 30 driven by the motor 25.
  • the sector carries the primer 15 and it also presents a drilling 31.
  • the load is represented in FIG. 3 in its storage security position.
  • the sector then occupies a substantially symmetrical position with respect to an axis 32 perpendicular to the axes 9 of the container 2 and 33 of the load cutting 8.
  • the hole 31 is also offset from the opening 35 of the container 2 (the position of which is marked dashed in Figure 3).
  • sealing means will advantageously provided between the sector and the support 28 (for example one or several O-rings 36).
  • control means 16 After setting up the load, the control means 16 cause the passage into armed position.
  • the motorization 25 is controlled so as to rotate the sector 26 in the direction marked D1 in FIG. 3.
  • the armed position is shown in Figure 4, the leader 15 is aligned with the orifice 34 which connects it to the cutting load 8.
  • the control means 16 trigger the initiation 15, therefore opening the container.
  • the means of control 16 rotate the motorization 25 so as to make rotate sector 26 in the direction marked D2 on the figure 3.
  • the neutralization / lifting position is shown in the figure 5.
  • the hole 31 of sector 26 is aligned with the opening 35 of the container 2.
  • the bore 31 therefore makes communicate the container with the envelope 7 which inflates so as to form a balloon 24 which deploys out of the load and allows it to float and return to area.
  • the charges according to the invention can be easily reconfigured to be reused. To do this, simply fill in the containers with pressurized gas and reposition the component of the security and arming system in its storage position.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Semiconductor Lasers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Toys (AREA)
EP99403082A 1998-12-11 1999-12-09 Unterwasserschutzladung Expired - Lifetime EP1008830B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9815731A FR2787183B1 (fr) 1998-12-11 1998-12-11 Charge de protection sous-marine
FR9815731 1998-12-11

Publications (2)

Publication Number Publication Date
EP1008830A1 true EP1008830A1 (de) 2000-06-14
EP1008830B1 EP1008830B1 (de) 2003-07-02

Family

ID=9533919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99403082A Expired - Lifetime EP1008830B1 (de) 1998-12-11 1999-12-09 Unterwasserschutzladung

Country Status (5)

Country Link
EP (1) EP1008830B1 (de)
AT (1) ATE244393T1 (de)
DE (1) DE69909220T2 (de)
DK (1) DK1008830T3 (de)
FR (1) FR2787183B1 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514319A1 (fr) * 1981-10-09 1983-04-15 Tournay Omer Engin tactique sous-marin repondeur d'echo
DE4322837A1 (de) * 1993-07-08 1995-04-06 Buck Chem Tech Werke Verfahren zum Erzeugen von Gasblasen in Wasser sowie Zeolithpartikel zu dessen Durchführung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514319A1 (fr) * 1981-10-09 1983-04-15 Tournay Omer Engin tactique sous-marin repondeur d'echo
DE4322837A1 (de) * 1993-07-08 1995-04-06 Buck Chem Tech Werke Verfahren zum Erzeugen von Gasblasen in Wasser sowie Zeolithpartikel zu dessen Durchführung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CH. R. STRIBLEY ET AL.: "Float Release Mechanism", NAVY TECHN. DISCLOS. BULL., Navy Techn. Cat. No. 1132, Navy Case No. 61080, XP002114881 *

Also Published As

Publication number Publication date
DE69909220D1 (de) 2003-08-07
EP1008830B1 (de) 2003-07-02
ATE244393T1 (de) 2003-07-15
FR2787183B1 (fr) 2001-02-16
DK1008830T3 (da) 2003-10-27
FR2787183A1 (fr) 2000-06-16
DE69909220T2 (de) 2004-04-15

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