EP1034411B1 - Generateur pyroacoustique pour la protection de sous-marins et de batiments de surface - Google Patents
Generateur pyroacoustique pour la protection de sous-marins et de batiments de surface Download PDFInfo
- Publication number
- EP1034411B1 EP1034411B1 EP98958287A EP98958287A EP1034411B1 EP 1034411 B1 EP1034411 B1 EP 1034411B1 EP 98958287 A EP98958287 A EP 98958287A EP 98958287 A EP98958287 A EP 98958287A EP 1034411 B1 EP1034411 B1 EP 1034411B1
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- Prior art keywords
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- case
- submunition
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- 238000002485 combustion reaction Methods 0.000 claims description 5
- 230000003111 delayed effect Effects 0.000 claims description 4
- 238000009527 percussion Methods 0.000 claims description 4
- 235000012431 wafers Nutrition 0.000 description 8
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Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/60—Jamming involving special techniques
- H04K3/65—Jamming involving special techniques using deceptive jamming or spoofing, e.g. transmission of false signals for premature triggering of RCIED, for forced connection or disconnection to/from a network or for generation of dummy target signal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G9/00—Other offensive or defensive arrangements on vessels against submarines, torpedoes, or mines
- B63G9/02—Means for protecting vessels against torpedo attack
-
- 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
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
- F42B12/56—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies
- F42B12/58—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles
- F42B12/60—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles the submissiles being ejected radially
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
- F42B12/56—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies
- F42B12/70—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies for dispensing radar chaff or infrared material
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
- H04K3/825—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by jamming
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K2203/00—Jamming of communication; Countermeasures
- H04K2203/10—Jamming or countermeasure used for a particular application
- H04K2203/12—Jamming or countermeasure used for a particular application for acoustic communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K2203/00—Jamming of communication; Countermeasures
- H04K2203/10—Jamming or countermeasure used for a particular application
- H04K2203/22—Jamming or countermeasure used for a particular application for communication related to vehicles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K2203/00—Jamming of communication; Countermeasures
- H04K2203/10—Jamming or countermeasure used for a particular application
- H04K2203/24—Jamming or countermeasure used for a particular application for communication related to weapons
Definitions
- the present invention relates to a pyroacoustic device forming a jammer or decoy, for the protection of submarines or surface buildings.
- the object of the present invention is to propose a new device more effective than the known prior devices with regard to torpedo homers.
- a housing 100 cylindrical of revolution around a vertical O-O axis in use.
- This box 100 is connected to a positioning structure controlled underwater.
- a structure of controlled positioning underwater can be the subject of many modes of production.
- it is an inflatable buoy 240 to which the box 100 is connected by a cord 2100, as will be explained later.
- the positioning structure can understand not an inflatable buoy, but an inflated buoy from the origin, or any equivalent means able to float on water to support the housing 100 via the rope 2100, or even capable of control the descent of the housing 100.
- the structure of positioning may not include something floating on the surface water, but something, such as a parachute canopy suitable for control the descent of the housing 100 in the water.
- the housing 100 accommodates a plurality of loads 110 adapted for each generate an acoustic effect. According to the representation given on the FIG. 1, these charges 110 which open onto the external surface of the housing 110 are distributed on a propeller centered on the axis O-O.
- the housing 100 houses means adapted to initiate successively loads 110 according to a controlled timing.
- these means consist of a motor reducer 120 placed in the upper part of the housing 100 and associated with a power supply stack 130.
- the reduction motor 120 drives a shaft 122 centered on the O-O axis.
- the shaft 122 is non-cylindrical in revolution. He is in taken with a plate 124 which, on the one hand is engaged in a spiral guide formed on the housing 100 and on the other hand carries at least one brush 125 electrically conductive, preferably two brushes electrically conductors 125, 126 so that when driving the shaft 122 by the motor 120, the brushes 125, 126 come into contact successively with igniter pads of different charges 110.
- Each of the charges 110 is preferably formed of a housing 111 generally cylindrical in revolution, tapered radially towards inside the case 100.
- Each case 111 houses a sound composition 112.
- each box 111 is provided with a ejection flush 113.
- On the interior thereof each housing 111 further includes a pyrotechnic delay 114.
- an igniter 115 is carried by the structure of the housing 100 receiving the charges 110 next to each flush 113.
- Each igniter 115 communicates with an ejection flush 113.
- each igniter 115 has a power supply terminal in contact with the housing 100 electrically conductive on the one hand, and a second terminal accessible by look of the movement path of the brushes 125, 126 on the other hand.
- the housing 100 can contain 700 loads 110 implemented in steps of 0.25 seconds.
- each charge 110 is ensured between the housing 100, for example by means of an O-ring 116 engaged on the radially internal end of each housing 111.
- each case 111 is held in the case 100 by means capable of yielding during the implementation of the hunt ejection 113.
- Such temporary retention means can be formed for example a toothed washer 117 engaged with a stud 118 formed on the radially outer surface of each housing 111 and coming from elsewhere in engagement with the internal surface of each housing of the housing 100 receiving a charge 110.
- Priming the battery 130 powers the motor 120. This drives the rotary striker assembly 140 which is designed to strike automatically the percussion caps 130 according to its displacement, according to an adequate timing. Percussion primers 130 initiates the pyrotechnic ejection hunts 113 which ignite the pyrotechnic delays 114 and eject the pyroacoustic charges elementary 110.
- each pyrotechnic delay 114 initiates the associated sound composition 112, thus creating the desired acoustic effect.
- FIGS. 7 to 9. Another variant embodiment has been illustrated in FIGS. 7 to 9. according to which the housing 100 accommodates several circular pancakes 150 stacked axially.
- each wafer 150 accommodates itself a plurality of elementary charges 110, in chambers which open axially onto a main surface of the pancakes 150, orthogonal to the axis O-O during storage.
- the housing 100 can thus accommodate by example 30 pancakes each containing for example 18 loads 110.
- the motor 120 is replaced by an electronic box 121 connected by via a bundle of cables 128 to 1150 ejection channels inserted between the wafers 150.
- each wafer 150 carries a electric igniter 152, preferably in the central position.
- Each load 110 of the embodiment illustrated in FIGS. 7 to 9 consists of a body 111, preferably made of plastic, which contains the sound composition 112, and a pyrotechnic delay 114.
- the priming of the battery 130 supplies the electronic unit 121. This initiates the electrical igniters 152 of each wafer according to a adequate sequencing.
- the initiation of an igniter 152 causes the ignition of a flush associated ejection 1150, which causes the separation of the wafer 150, the release of its elementary pyroacoustic charges and the ignition of all of the pyrotechnic delays 114 of these charges 110.
- each delay 114 has a different duration.
- each pyrotechnic delay 114 initiates the associated sound composition 112, creating the desired acoustic effect. Sequencing of the case electronics 121 is such that the end of combustion of the last delay 114 of a wafer 150 corresponds to the initiation of the next wafer 150.
- This munition 200 comprises an essentially cylindrical body of revolution, around an axis O-O.
- This body includes a primary part 210 and an abutment 250.
- the primary part 210 is located at the end of the rocket 200. It houses preferably stabilizing fins 220, a propulsion motor 212 (this motor can be a powder motor) and preferably a set with parachute 230.
- the secondary part 250 houses the useful part of the load comprising the buoy structure 240 and the housing 100 containing the charges sound 110.
- the ammunition 200 also has an impeller pyrotechnic 235 placed between the primary part 210 and the secondary part 250 to separate the engine 212 from the 240/100 payload when it is initiation.
- a second impeller located in the rocket warhead allows also, after firing, to request a piston ensuring the deposition of the 240/100 payload out of its container tube to free the device from countermeasure.
- the firing of the first and second powder impellers is done, for example, through an electronic device.
- parachute assembly 230 can be housed in the secondary part 250 and not in the primary part 210.
- the engine 212 can be associated with a parachute asymmetrical ensuring a change of trajectory to the engine 212, after initiation of the first impeller, to prevent the motor from disturbing the payload path 240/100.
- a parachute can comply with the provisions described in document FR-A-2 724 222.
- the operation of the system according to the present invention is basically the following.
- the ammunition is fired at an elevation and with a precise flight time calculated to reach the desired range ( Figures 11a and 11b).
- the chain pyrotechnic is initiated and the rear impeller is ignited. This ensures the separation of engine 212 and payload 240/100.
- Engine 212 is ejected backwards.
- the brake parachute 230 still not deployed, and the 240/100 payload is ejected forward. A halyard connecting the two previous sets are loosened until reaching tension.
- the aforementioned asymmetrical wing fixed on this halyard is deployed and inflates to ensure a change of trajectory for the engine 212 which continues its trajectory under the asymmetrical airfoil 124 until the impact at the water.
- the 240/100 payload reaches the surface of the water.
- a sensor ensures the separation of the buoy structure 240 and the housing 100 and authorizes the unwinding of the connection cord 2100 between them.
- the initiation of the housing 100 is operated when the rope 2100 by which the box 100 is suspended from the buoy structure 240, is tensioned.
- the buoy structure 240 can be inflated by any means suitable for impact on water, for example by a CO2 capsule activated by a striker itself released during the fusion of a salt block fuse in contact with water, for example NaCl.
- the means ensuring the temporary connection, before impact on water. between the buoy structure 240 and the housing 100 can be the subject of many embodiments.
- a base 260 designed to be fixed in the upper part of the housing 100.
- the base 260 has a housing 262 receiving a coil of rope 2100.
- one of the ends of the rope 2100 is connected to the base 260 and therefore indirectly to the housing 100.
- the other end of the rope 2100 is connected to a stud 270 itself secured to the buoy structure 240.
- the stud 270 is held on the top of the base 260 by means of temporary restraint.
- They may, for example, be frangible pins adapted to be ruptured upon impact on water, to allow separation of the buoy structure 240 and the housing 100 and a unwinding of the rope 2100.
- the stud 270 is held on the one hand by a pin ejectable 280 and by pins 290 urged into engagement with the stud 270 under a serious effort.
- the pin 280 and the pins 290 are placed in a flange upper 264 of the base 260.
- the pin 280 is thus placed in a passage 265 formed radially in the flange 264. At rest the pin passes through a bore complementary formed in the pad 270 to prohibit a withdrawal thereof.
- the pin 280 is ejected upon impact on the water to release the stud 270 by the gas pressure released by an electrical primer 282.
- the primer 282 is placed in a housing of the flange 264 which communicates with the passage 265 upstream of a recess 281 formed on the pin 280.
- Two pins 290 are therefore preferably provided diametrically opposite, placed in complementary passages 266 formed in the flange 264, 90 ° from passage 265.
- the radially internal rounded head of the pins 290 rest in a groove formed on the periphery of the stud 270.
- the pins 290 are kept in engagement with the stud 270 under a calibrated effort controlled by all appropriate means.
- the pins 290 can be maintained in the passages 266 by an arrangement of spring washers 292.
- the pin 280 can be removed on the way, so that the 290 pawns yield on impact on the water.
- the elementary charges 110 are implemented outside the housing 100, alternatively we can consider putting them in works in their storage position in the case, provided that the boxes 100 and 111 are adapted to avoid any risk of initiation of a charge 110 to the adjacent charge.
- the charges 110 are implemented from the bottom to the top of the housing 100 to thereby avoid an initiation of the charges between them, the charges 110 tending to flow after being released from the housing 100.
- the step between the initiation of two successive charges 110 is typically between 0.2 and 0.5s, preferably between 0.2 and 0.25s.
- the housing 100 can be covered frangible skin, for example of plastic, adapted to be broken during the implementation of each load 110.
- the variant illustrated in Figures 15 to 17 is suitable for transmitting a chopped signal from high level resulting from the timing of successive pressure fronts created by pyrotechnic reactions.
- the pyroacoustic generator comprises a plurality of under charges or under ammunition 160 interconnected by halyards 170.
- the halyards 170 also provide the connection with the rope 2100 suspended from buoy 240 or a positioning device equivalent.
- Each submunition 160 is formed by axial stacking of several buckets or elementary charges 110.
- the halyards 170 are preferably adapted so that as seen in Figure 17, once deployed, the different loads 160 forms an almost continuous bead of elementary charges 110. It is at say that the upper end of a given submunition 160 coincides substantially with the lower end of the adjacent submunition 160 higher.
- the generator also includes first delay means 162 adapted to successively initiate the various under loads 160 and second delay means adapted to ensure successive initiation different elementary charges 110 of a submunition 160.
- the first delay means 162 are preferably formed of electronic means integrated into the base of each submunition 160.
- the second delay means are preferably formed of delays pyrotechnics integrated respectively into each elementary charge 110.
- each elementary charge 110 is preferably formed of a cylindrical cup containing a pyrotechnic composition and a body pyrotechnic delay.
- These delay means are preferably adapted to start charge initiation, by the lower submunition 160, and within a in munition 160, by the lower elementary charge 110.
- the delay means preferably define a timing identical for the different submunitions 160.
- these delay means are preferably adapted so that the time between the initiation of the last elementary charge 110 of a under given munition 160 and the initiation of the first elementary charge 110 of the next submunition 160, i.e. identical to the timing between elementary charges within each submunition 160.
- the rocket 200 illustrated in FIG. 15, adapted for the implementation work of this device, essentially comprises a rear part 210 which comprises a propulsion engine 212 associated with fins 220 and a front part 250 which comprises, from rear to front a compartment parachute 230, a buoy compartment 240 and the payload consisting of in ammunition 160 in a case or case 100.
- a pyrotechnic booster 235 is placed between the rear part 210 and the front part 250 to separate these during its initiation.
- a second impeller 2350 is located in the warhead 252 of the rocket to deposit the submunitions 160 out of the case 100 on order.
- the rocket preferably also includes a asymmetrical parachute 2300, as indicated above to ensure a change of trajectory to engine 212, after separation and avoid that the engine 212 does not disturb the trajectory of the payload 160.
- the submunitions 160 each formed from a stack of submunitions loads 110 are juxtaposed axially in the case 100 as seen especially in Figures 15 and 16.
- a safety device and a power source are activated.
- the warhead 252 and the case 100 are ejected, releasing the submunitions 160, as is seen in Figures 17a (before ejection of the case 100) and 17b (after ejection of this case 100).
- the operating sequence is then checked by the long electronic delays 162 associated respectively with each sub ammunition 160, operating in parallel, and by pyrotechnic delays short, integrated respectively into each elementary load 110, which operate in series.
- Each elementary charge 110 is initiated by a delay and works by generating a pressure wave. Sequencing of these pressure waves constitutes a long-lasting, clean chopped noise to scramble torpedo or submarine sensors.
- the pyroacoustic device according to the present invention can be suitable for jamming submarines alone, or jamming of submarines and torpedoes.
- the timing is half of the second case, which allows double the duration of action of the device.
- the pyroacoustic device can be for example dropped using a pneumatic launcher, or simply dropped by gravity overboard, manually or using a downward sloping launcher. Installation in the immediate vicinity of the building can lead either to an immediate initiation of the pyrotechnic sequence, i.e.
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
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Description
- une structure apte à former un dispositif de positionnement contrôlé sous l'eau, et
- un boítier relié à la structure de positionnement, lequel boítier contient :
- une pluralité de charges aptes à générer chacune un effet acoustique, et
- des moyens de commande aptes à initier ladite pluralité de charges, selon une séquence contrôlée
- la figure 1 représente schématiquement selon une demi vue supérieure en coupe longitudinale et une demi vue inférieure latérale, un boítier conforme à la présente invention,
- la figure 2 représente une vue en coupe transversale de cette structure,
- la figure 3 représente schématiquement une charge élémentaire conforme à l'invention,
- la figure 4 représente une variante d'agencement en quinconce de charges conforme à l'invention,
- la figure 5 représente une vue similaire à la figure 1 d'un boítier conforme à un second mode de réalisation de l'invention,
- la figure 6 représente une vue en coupe transversale de ce même boítier,
- la figure 7 représente une vue similaire à la figure 1 d'un boítier conforme à un troisième mode de réalisation de l'invention,
- la figure 8 représente une vue en plan d'une galette de charges de ce troisième mode de réalisation,
- la figure 9 illustre la mise en oeuvre des charges contenues dans une telle galette,
- la figure 10 représente une roquette conçue pour la mise en oeuvre du dispositif selon l'invention,
- la figure 11 illustre schématiquement le fonctionnement du dispositif selon l'invention,
- la figure 12 représente une vue transversale d'une embase assurant la liaison entre une bouée et le boítier,
- les figures 13 et 14 représentent respectivement des vues en coupe longitudinale de cette embase selon les plans de coupe référencé XIII et XIV sur la figure 12,
- la figure 15 représente une vue en coupe longitudinale d'une roquette conforme à une autre variante de réalisation de la présente invention,
- la figure 16 représente une vue en coupe transversale de cette roquette, et
- la figure 17 représente schématiquement le séquencement de mise en oeuvre du dispositif pyrotechnique conforme à cette variante de réalisation de la présente invention.
Claims (35)
- Dispositif pyroacoustique, pour la protection des sous-marins ou des bâtiments de surface, caractérisé par le fait qu'il comprend :une structure (240) apte à former un dispositif de positionnement contrôlé sous l'eau, etun boítier (100) relié au dispositif de positionnement, lequel boítier (100) contient :une pluralité de charges (110) aptes à générer chacune un effet acoustique, etdes moyens de commande (125, 126 ; 140 ; 121) aptes à initier ladite pluralité de charges (110), selon une séquence contrôlée caractérisé par le fait que les moyens de commande sont adaptés pour définir un pas entre l'initiation de deux charges successives, compris entre 0,2 et 0,5s.
- Dispositif selon la revendication 1, caractérisé par le fait que le pas entre l'initiation de deux charges (110) successives est compris entre 0,2 et 0,25s.
- Dispositif selon l'une des revendications 1 ou 2, caractérisé par le fait que le boítier (100) est recouvert d'une peau adaptée pour être rompue lors de la mise en oeuvre de chaque charge (110).
- Dispositif selon l'une des revendications 1 à 3, caractérisé par le fait que les moyens de commande comprennent un ensemble à balais électriquement conducteurs (125, 126) déplacés en regard de plots d'inflammateurs (115) des différentes charges (110).
- Dispositif selon l'une des revendications 1 à 4, caractérisé par le fait que les moyens de commande comprennent des amorces à percussion (130) mises en oeuvre par un ensemble percuteur (140) contrôlé en cadencement par un dispositif électronique approprié.
- Dispositif selon l'une des revendications 1 à 5, caractérisé par le fait que les moyens de commande comprennent un boítier électronique (121) contrôlant le cadencement des charges (110).
- Dispositif selon l'une des revendications 1 à 6, caractérisé par le fait que les charges (110) débouchent sur la surface extérieure du boítier (100).
- Dispositif selon l'une des revendications 1 à 7, caractérisé par le fait que les charges (110) sont réparties sur une hélice centrée sur l'axe O-O du boítier (100).
- Dispositif selon l'une des revendications 1 à 8, caractérisé par le fait que les charges (110) sont agencées en quinconce.
- Dispositif selon lune des revendications 1 à 7, caractérisé par le fait que les charges (110) sont disposées selon une pluralité de disques, empilés axialement.
- Dispositif selon l'une des revendications 1 à 7, caractérisé par le fait que le boítier (100) loge plusieurs galettes circulaires (150) empilées qui logent elles-mêmes chacune une pluralité de charges élémentaires (110), dans des chambres qui débouchent axialement sur une surface principale des galettes (150).
- Dispositif selon la revendication 11, caractérisé par le fait que boítier (100) comprend des chasses d'éjection (1150) intercalées entre les galettes (150).
- Dispositif selon l'une des revendications 11 ou 12, caractérisé par le fait que chaque galette (150) porte un inflammateur électrique (152), adapté pour assurer la mise en oeuvre des différentes charges (110).
- Dispositif selon l'une des revendications 1 à 13, caractérisé par le fait que chaque charge (110) se compose d'un corps (111) qui contient une composition sonore (112), et un retard pyrotechnique (114).
- Dispositif selon la revendication 14 prise en combinaison avec l'une des revendications 11 à 13, caractérisé par le fait que dans une galette (150), chaque retard (114) a une durée différente.
- Dispositif selon la revendication 15, caractérisé par le fait que le boitier électronique (121) défini un cadencement tel que la fin de combustion du dernier retard (114) d'une galette (150) correspond à l'initiation de la galette (150) suivante.
- Dispositif selon l'une des revendications 1 à 16, caractérisé par le fait que chaque charge (110) est associée à une chasse d'éjection (113).
- Dispositif selon l'une des revendications 1 à 17, caractérisé par le fait que chaque charge (110) est maintenue dans le boítier (100) par des moyens aptes à céder lors de la mise en oeuvre d'une chasse d'éjection (113) par exemple par une rondelle à dents (117).
- Dispositif selon l'une des revendications 1, 2, 6 ou 14, caractérisé par le fait qu'il comporte une pluralité de sous charges ou sous munitions (160) reliées entre elles par des drisses (170) qui assurent la liaison avec le moyen de positionnement (240), chaque sous munition (160) étant formée par empilement axial de plusieurs godets ou charges élémentaires (110).
- Dispositif selon la revendication 19, caractérisé par le fait que les drisses (170) sont adaptées pour que les différentes sous charges (160) forment un cordon quasi continu de charges élémentaires (110), c'est à dire que l'extrémité supérieure d'une sous munition (160) donnée coïncide sensiblement avec l'extrémité inférieure de la sous munition (160) adjacente supérieure.
- Dispositif selon l'une des revendications 19 ou 20, caractérisé par le fait qu'il comporte en outre des premiers moyens de retard (162) adaptés pour initier successivement les diverses sous charges (160) et des seconds moyens de retard adaptés pour assurer l'initiation successive des différentes charges élémentaires (110) d'une sous munition (160).
- Dispositif selon la revendication 21, caractérisé par le fait que les premiers moyens de retard (162) sont formés de moyens électroniques intégrés à chaque sous munition (160), tandis que les seconds moyens de retard sont formés de retards pyrotechniques intégrés respectivement à chaque charge élémentaire (110).
- Dispositif selon l'une des revendications 21 ou 22, caractérisé par le fait que les moyens de retard sont adaptés pour commencer l'intitiation des charges, par la sous munition (160) inférieure, et au sein d'une sous munition (160), par la charge élémentaire (110) inférieure.
- Dispositif selon l'une des revendications 21 à 23, caractérisé par le fait que les moyens de retard définissent un cadencement identique pour les différentes sous munitions (160) et sont adaptés pour que le temps qui sépare l'initiation de la dernière charge élémentaire (110) d'une sous munition donnée (160) et l'initiation de la première charge élémentaire (110) de la sous munition suivante (160), soit identique au cadencement entre charges élémentaires au sein de chaque sous munition (160).
- Dispositif selon l'une des revendications 1 à 24, caractérisé par le fait que le boitier (100) est placé en partie avant (250) d'un projectile équipé en sa partie arrière (210) d'un élément moteur (212) et d'une voilure dissymétrique adaptée pour dévier le moteur (212) sur une trajectoire différente de la partie avant après séparation des parties avant et arrière.
- Dispositif selon l'une des revendications 1 à 25, caractérisé par le fait qu'il comprend une embase (260) reliée au boítier (100) et qui possède un logement (262) recevant une bobine de filin (2100), l'une des extrémités du filin (2100) étant reliée à l'embase (260) et par conséquent indirectement au boítier (100), tandis que l'autre extrémité du filin (2100) est reliée à un plot (270) lui même solidaire de la structure-bouée (240) et qui est maintenu sur le sommet de l'embase (260) par des moyens de retenue provisoire.
- Dispositif selon la revendication 26, caractérisé par le fait que les moyens de retenue provisoire comprennent des goupilles frangibles.
- Dispositif selon la revendication 26, caractérisé par le fait que les moyens de retenue provisoire comprennent une goupille éjectable (280) et des pions (290) sollicités en prise avec le plot (270) sous un effort taré.
- Dispositif selon la revendication 28, caractérisé par le fait qu'il comprend une amorce électrique (282) apte à controler l'éjection de la goupille (280).
- Dispositif selon l'une des revendications 28 ou 29, caractérisé par le fait que les pions (290) sont maintenues en prise avec le plot (270) ) par un arrangement de rondelles ressort (292).
- Dispositif selon l'une des revendications 1 à 30, caractérisé par le fait que le dispositif de positionnement (240) comprend une structure flottante, telle qu'une bouée gonflable.
- Dispositif selon l'une des revendications 1 à 30, caractérisé par le fait que le dispositif de positionnement (240) comprend une structure adaptée pour contrôler la descente de la charge utile, telle qu'une voilure de parachute.
- Dispositif selon l'une des revendications 1 à 32, caractérisé par le fait qu'il comprend des moyens aptes à définir une initiation retardée de la séquence pyrotechnique à compter d'un largage.
- Dispositif selon la revendication 33, caractérisé par le fait que les moyens définissant l'initiation retardée sont programmables.
- Dispositif selon l'une des revendications 33 ou 34, caractérisé par le fait que les moyens définissant l'initiation retardée sont adaptés pour contrôler l'initiation de quatre générateurs pyroacoustiques largués successivement avec des retards d'initiation respectivement de 5s, 80s, 120s et 180s.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9715144A FR2771805B1 (fr) | 1997-12-02 | 1997-12-02 | Generateur pyroacoustique pour la protection de sous-marins et de batiments de surface |
FR9715144 | 1997-12-02 | ||
PCT/FR1998/002578 WO1999028699A1 (fr) | 1997-12-02 | 1998-12-01 | Generateur pyroacoustique pour la protection de sous-marins et de batiments de surface |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1034411A1 EP1034411A1 (fr) | 2000-09-13 |
EP1034411B1 true EP1034411B1 (fr) | 2003-04-09 |
Family
ID=9514046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98958287A Expired - Lifetime EP1034411B1 (fr) | 1997-12-02 | 1998-12-01 | Generateur pyroacoustique pour la protection de sous-marins et de batiments de surface |
Country Status (8)
Country | Link |
---|---|
US (1) | US6430108B1 (fr) |
EP (1) | EP1034411B1 (fr) |
AU (1) | AU737923B2 (fr) |
CA (1) | CA2312780A1 (fr) |
DE (1) | DE69813285T2 (fr) |
FR (1) | FR2771805B1 (fr) |
WO (1) | WO1999028699A1 (fr) |
ZA (1) | ZA9810969B (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8419829D0 (en) * | 1984-08-03 | 1984-09-05 | British Telecomm | Treating glass compositions |
US7861699B2 (en) * | 2001-10-09 | 2011-01-04 | Garza And Gowan Sports Equipment | Ball tossing apparatus and method |
US6707760B1 (en) * | 2002-11-22 | 2004-03-16 | Bbnt Solutions Llc | Projectile sonar |
US9074858B2 (en) * | 2012-07-13 | 2015-07-07 | The Boeing Company | Projectile-deployed countermeasure system |
US10052544B2 (en) | 2014-09-09 | 2018-08-21 | Garza And Gowan Sports Equipment | Ball tossing apparatus and method |
GB2551197B (en) * | 2016-06-10 | 2019-03-13 | Acergy France SAS | Controlling the buoyancy of a mass of buoyant spheres |
US10245904B1 (en) * | 2017-12-18 | 2019-04-02 | Ford Global Technologies, Llc | Methods and apparatus to facilitate TPMS broadcast mode selection |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3097600A (en) * | 1946-04-25 | 1963-07-16 | James C Hopkins | Sound generator |
US4975890A (en) * | 1960-05-10 | 1990-12-04 | The United States Of America As Represented By The Secretary Of The Navy | Underwater sound transmitting system |
US3808940A (en) * | 1964-12-24 | 1974-05-07 | Gen Dynamics Corp | Portable decoy launcher system and rounds therefor |
US3799094A (en) * | 1971-06-17 | 1974-03-26 | Us Navy | Underwater acoustical jamming apparatus |
DE3608809A1 (de) * | 1986-03-15 | 1987-09-17 | Diehl Gmbh & Co | Einrichtung zum stoeren und taeuschen von wasserschall-ortungsanlagen |
US5117731A (en) * | 1991-11-04 | 1992-06-02 | The United States Of America As Represented By The Secretary Of The Navy | Tactical acoustic decoy |
US5341343A (en) * | 1993-04-02 | 1994-08-23 | Alliant Techsystems, Inc. | Underwater explosive acoustic signature device |
US5341718A (en) * | 1993-08-19 | 1994-08-30 | The United States Of America As Represented By The Secretary Of The Navy | Launched torpedo decoy |
FR2724222A1 (fr) | 1994-09-02 | 1996-03-08 | Lacroix Soc E | Engin volant, notamment missile ou roquette, comprenant deux parties separables sur trajectoire |
-
1997
- 1997-12-02 FR FR9715144A patent/FR2771805B1/fr not_active Expired - Fee Related
-
1998
- 1998-12-01 WO PCT/FR1998/002578 patent/WO1999028699A1/fr active IP Right Grant
- 1998-12-01 EP EP98958287A patent/EP1034411B1/fr not_active Expired - Lifetime
- 1998-12-01 ZA ZA9810969A patent/ZA9810969B/xx unknown
- 1998-12-01 US US09/581,273 patent/US6430108B1/en not_active Expired - Fee Related
- 1998-12-01 AU AU14382/99A patent/AU737923B2/en not_active Ceased
- 1998-12-01 CA CA002312780A patent/CA2312780A1/fr not_active Abandoned
- 1998-12-01 DE DE69813285T patent/DE69813285T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6430108B1 (en) | 2002-08-06 |
FR2771805A1 (fr) | 1999-06-04 |
AU1438299A (en) | 1999-06-16 |
FR2771805B1 (fr) | 2000-02-18 |
DE69813285T2 (de) | 2004-04-01 |
AU737923B2 (en) | 2001-09-06 |
WO1999028699A1 (fr) | 1999-06-10 |
DE69813285D1 (de) | 2003-05-15 |
ZA9810969B (en) | 1999-06-01 |
CA2312780A1 (fr) | 1999-06-10 |
EP1034411A1 (fr) | 2000-09-13 |
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