EP0881455A1 - Apparatus for expelling water in a torpedo launch tub of a sub-marine - Google Patents

Apparatus for expelling water in a torpedo launch tub of a sub-marine Download PDF

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Publication number
EP0881455A1
EP0881455A1 EP98401155A EP98401155A EP0881455A1 EP 0881455 A1 EP0881455 A1 EP 0881455A1 EP 98401155 A EP98401155 A EP 98401155A EP 98401155 A EP98401155 A EP 98401155A EP 0881455 A1 EP0881455 A1 EP 0881455A1
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EP
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Prior art keywords
piston
delivery device
hydraulic
pneumatic
cylinder
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EP98401155A
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German (de)
French (fr)
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EP0881455B1 (en
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Pierre Escarrat
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Direction General pour lArmement DGA
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Direction General pour lArmement DGA
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63GOFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
    • B63G8/00Underwater vessels, e.g. submarines; Equipment specially adapted therefor
    • B63G8/28Arrangement of offensive or defensive equipment
    • B63G8/32Arrangement of offensive or defensive equipment of torpedo-launching means; of torpedo stores or handlers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41FAPPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS
    • F41F3/00Rocket or torpedo launchers
    • F41F3/08Rocket or torpedo launchers for marine torpedoes
    • F41F3/10Rocket or torpedo launchers for marine torpedoes from below the surface of the water

Definitions

  • the present invention relates to a device for water discharge intended to equip a launching of objects from installed submerged tubes aboard a submarine or any other type of launcher or mobile or fixed submerged structure.
  • FIGS 1, 2 and 3 are essentially composed of several tubes (a) torpedo launchers (b) (only one tube is shown on the figures) provided with shutters (c) at their ends and a side shutter (d).
  • These torpedo tubes are connected to a delivery device of water by a launch box (e) which is located the outside of the thick hull (f) of the submarine ( Figures 1 and 3) or inside when the size of the latter allows it ( Figure 2).
  • the box of launch (e) achieves a closed and sealed volume in which the water discharge device will discharge.
  • the device backflow of water called “water-ram” consists of a pneumatic cylinder (g), placed inside the thick hull of the submarine, resulting in a connection mechanical passing through the thick shell (f), the piston (h) of the hydraulic cylinder (i) placed outside.
  • a high pressure compressed air tank fitted with a launch valve is placed near the cylinder pneumatic (g) and is used to supply the latter with energy required for launch.
  • a conduit (j) extends the hydraulic cylinder to the hull exterior of the submarine and is used to channel water from sea taken from the marine environment during displacement hydraulic piston.
  • Some devices water discharge are equipped with a pipe resistant to immersion pressure and have a shutter.
  • a silencer is installed on the exhaust and the bleeding the pneumatic cylinder.
  • European patent application 0.151.980 describes and claims a variant of the "water-ram" which consists of replace the pneumatic cylinder, supplied with air compressed, by a hydraulic cylinder, supplied by a hydraulic fluid, which comes from an accumulator oleo-pneumatic.
  • the delivery device water is a turbopump consisting of a turbine air (k) placed inside the thick shell of the submarine driving through a reducer (l), a pump (m) placed outside.
  • a pipe (n) extends the pump (m) to the hull exterior of the submarine and is used to channel water from sea taken from the marine environment during pump operation.
  • a compressed air circuit composed of an air tank (o) and a valve launch (p) powers the turbine (k) during the start-up of the device.
  • a silencer is installed on the turbine exhaust.
  • valve opening launch supplies compressed air to the turbine which drives the pump through the reduction gear speed.
  • the pump delivers the water taken from the medium sailor towards the back of the weapon via the casing launch and side openings of the torpedo tube. The hydraulic pressure thus established pushes the weapon out of the torpedo tube.
  • the object of the present invention is to remedy to the disadvantages of these devices known in modifying the architecture of the delivery device, so as to get better use of the pneumatic energy which makes it possible to ensure a operation with reduced noise level and without the drawbacks inherent in air relaxation compressed in a reduced space.
  • Another object of the invention is to eliminate the through the thick hull by a movable element in translation or rotation likely to compromise the integrity of the thick shell.
  • Another object of the invention is also to remove the periodic cleaning operations from the pneumatic cylinder rod.
  • Another object of the invention is also to propose a water delivery device whose maintenance does not require prolonged immobilization of the submarine.
  • the present invention achieves these goals and for this purpose relates to a delivery device of water intended to equip a launch facility objects, including a torpedo, mine or missile, from at least one tube integrated into an immersed structure, mobile or fixed, in particular a submarine, which tube is provided with at least one end shutter and one lateral shutter connecting it hydraulically to delivery device by a launch box filled with water, secured to the hull of the submarine, and constituting a closed and sealed volume in which the water is pumped back to the tube, under the action of a leading pneumatic cylinder acting on a hydraulic cylinder driven via water contained in the box and previously removed from the marine environment by a supply conduit, characterized by what the subwoofer is fixedly located outside of the shell and in that the pneumatic cylinder and the cylinder hydraulic constituting the delivery device are removable and independent to take place in or be dissociated from said box, without intervention on the hull, only means of fluid or electrical connection and the launch proper through the hull.
  • the device has a pressurized gas tank in direct connection with the piston of the pneumatic cylinder leading to train him on the move, without conduit intermediate, which piston is connected to a piston of annular discharge forming a concentric crown around the pneumatic cylinder and able to move linearly, simultaneously with the piston thereof, in a corresponding concentric chamber of the cylinder hydraulic.
  • the pneumatic piston connection leading to the piston hydraulic driven consists of a stirrup connected by its center at a perpendicular protruding end of said driving piston and connected by its free ends to tie rods parallel to this one and in connection with the concentric driven discharge piston, for constitute a movable hitch with respect to pneumatic and hydraulic cylinder chambers.
  • Figures 4, 5, 6 and 7 show an example for implementing the invention on board a submarine equipped with torpedo tubes.
  • torpedo tubes 1 with the throwing weapon 5 are shown equipped with their rear 2 and front 3 shutters which can be opened or closed, as well as their lateral shutter 4.
  • the latter which can be opened or closed, plugs water inlet ports 7.
  • These ports connect internal volume 8 of the torpedo tube having its lateral shutter 4 opened with the internal capacity 10 of a box of launch 9.
  • the launch box 9 is connected to the thick hull 11 of the submarine and thus achieves a closed and sealed volume, but the same function can be ensured by any other provision of the launch.
  • the capacity 10 of the launch box 9 communicates with the volume 12 of a hydraulic cylinder 13 thanks to its open lower part, as well as lights 14 arranged on the side wall of the jack 13.
  • the latter is connected to the launch box 9 by a flange 35 fixed by elastic connections 36.
  • a sealing device 37 isolates capacities 10 and 12 from the outside environment.
  • a compressed gas circuit composed of pipes 51a, 51b connects the internal volume of the reservoir 28 with a source of production and distribution of compressed gas from the submarine.
  • a valve 52 allows this circuit to be isolated.
  • the temperature of the expanded gas must not cool the wall on which the hydraulic piston 15 of cylinder 13, in order to avoid ice formation likely to prevent the return in position of the latter.
  • the movement of the pneumatic piston 20 of the cylinder 26 is transmitted to the concentric hydraulic piston 15 of circular shape, or any other shape adapted to that of cylinder 13, and annular via a stirrup 21 and tie rods 17 (at least two).
  • the tie rods 17 are guided in translation by bearings 18, integral with supports 19 fixed to the jack 13. Each level is associated with a braking 16 of the tie rods 17 when they reach the end launch race.
  • Dynamic sealing between volume 12 concentric and the external environment is provided by seals 22 and 23, the seal located on the volume side 12 being of preferably scraper type.
  • the piston 15 is equipped with float drain valves 24 interposed between the connections to tie rods 17. In the position shown, these valves, in addition to purging the air trapped in the volume 12, allow, when the piston 15 returns in "armed" position after a launch, to supply the 12 volume of water from the outside environment.
  • the capacity 31 of the pneumatic cylinder 26 contains a hydraulic fluid and can be ported with a discharge box 6 via a circuit comprising the flange 30 on which is connected the piping 32 a, b, c, d and through the device combining a valve 33 which can be opened or closed, and a means for regulating the flow rate 34 of the hydraulic fluid discharged to the discharge box 6 during the displacement of the piston 20.
  • the movement of the latter is braked at the end of the launch stroke by a device 55 integrated in the flange 30.
  • a hydraulic fluid circuit composed of pipes 29 a, b, c allows, thanks to a pump 56, to discharge the hydraulic fluid contained in the body discharge 6 to capacity 31, so as to cause displacement of the piston 20 from its end position launch towards the "armed" position, which also as a consequence of compressing the volume of expanded gas of the reservoir 28.
  • a valve 53 makes it possible to isolate this circuit outside of its use phase and a non-return valve 38 prevents pressurization of the circuit upstream of the valve.
  • This support ensures the resumption of the efforts developed by the pneumatic cylinder and it has for this purpose a link 50 immobilizing the body of the jack 26.
  • a water supply channel 42 fitted with a grid 43 connects the outer shell 49 to the support 39.
  • a seal flexible 44 ensures the continuity of the hull profile outside.
  • the device for water discharge is installed in the part upper part of the submarine, but any other provision performing the same functions may be considered.
  • the electrical circuits for monitoring the device are not shown.
  • removable connectors 47 and 48 inserted between the elements of the pipes 32 and 51, are placed in such a way that they allow, after have been dismantled, the passage of the assembly 13, 26 to through openings in the upper part of the box 9, structure 41 and the outer shell 49.
  • the pneumatic piston 20 connected to the piston concentric hydraulic 15 is maintained in the position I by capacity 31 filled with fluid hydraulic, the latter being unable to flow towards the discharge box 6 when the valve 33 is held closed.
  • the capacity 36 of the tank 28 is filled with gas at the pressure corresponding to the conditions of launch.
  • FIG. 10b another embodiment is shown and can be considered to ensure this last function: lights 14 are deleted and the passage of water from the outside environment to capacities 12 and 10, when the piston 15 slows down, is ensured by the opening of float valves 24 of which their characteristics (passage section, difference pressure causing their opening) are adapted to this use (see Figure 6).
  • valve 53 and the start-up of the pump 56 supplies hydraulic fluid under pressure, taken from the discharge tank 6 and by through the pipes 29 a, b c, 32a, b, c, la air cylinder capacity 31 26.
  • the pressure generated by the pump is such that given the driving section of the pneumatic piston 20 on the fluid side hydraulic lower than the section of this same piston gas side under pressure, the thrust caused by the pressurization of the capacity 31 is greater than the thrust due to partially expanded pressurized gas in tank 28. Moving to position I of the piston 20 driving the piston 15 is then produced, as well as the compression of the gas contained in the tank 28.
  • the float valves 24 act as check valves non-return and allow the passage of the water withdrawn in the external environment towards capacity 12 of the jack hydraulics 13.
  • valve 53 is closed and the device is ready for a new launch after the gas pressure compressed in reservoir 28 has been adjusted to nominal pressure.
  • the device which has just been described finds also its application in the ejection of lures or any other type of countermeasures, as well as in ejection of recoverable submarine powered bodies or the ejection of inert bodies for load shedding operations.

Abstract

The system, especially for a torpedo, mine or missile launch tube (1) in a submerged structure such as a submarine, equipped with at least one end (3) and one side (7) shutter, comprises a water-filled housing (9) fixed to the outside of the submarine shell (11) and equipped with pneumatic driving (20) and hydraulic driven (13) cylinders. The pneumatic and hydraulic cylinders are movable and independent of the housing, with the pneumatic cylinder connected to a source (28) of a gas under pressure. Its piston (20) is connected to an annular piston (15) surrounding the cylinder chamber and able to move with it in a linear direction. The pneumatic cylinder's piston (20) is also connected to the hydraulic cylinder piston by a stirrup (21).

Description

La présente invention concerne un dispositif de refoulement d'eau destiné à équiper une installation de lancement d'objets à partir de tubes immergés installés à bord d'un sous-marin ou de tout autre type de lanceur ou de structure immergée mobile ou fixe.The present invention relates to a device for water discharge intended to equip a launching of objects from installed submerged tubes aboard a submarine or any other type of launcher or mobile or fixed submerged structure.

Les dispositifs connus de ce type sont utilisés dans le domaine militaire pour lancer des objets à partir de tubes lance-torpilles de sous-marins.Known devices of this type are used in the military to launch objects at from submarine torpedo tubes.

Ces dispositifs illustres aux figures 1, 2 et 3 sont essentiellement composés de plusieurs tubes (a) lance-torpilles (b) (un seul tube est représenté sur les figures) munis d'obturateurs (c) à leurs extrémités et d'un obturateur latéral (d). Ces tubes lance-torpilles sont reliés à un dispositif de refoulement d'eau par un caisson de lancement (e) qui est situé à l'extérieur de la coque épaisse (f) du sous-marin (figures 1 et 3) ou à l'intérieur lorsque la taille de ce dernier le permet (figure 2). Le caisson de lancement (e) réalise un volume fermé et étanche dans lequel le dispositif de refoulement d'eau va refouler.These devices illustrated in Figures 1, 2 and 3 are essentially composed of several tubes (a) torpedo launchers (b) (only one tube is shown on the figures) provided with shutters (c) at their ends and a side shutter (d). These torpedo tubes are connected to a delivery device of water by a launch box (e) which is located the outside of the thick hull (f) of the submarine (Figures 1 and 3) or inside when the size of the latter allows it (Figure 2). The box of launch (e) achieves a closed and sealed volume in which the water discharge device will discharge.

Selon les figures 1 et 2, le dispositif de refoulement d'eau appelé "water-ram" est constitué par un vérin pneumatique (g), placé à l'intérieur de la coque épaisse du sous-marin, entraínant par une liaison mécanique traversant la coque épaisse (f), le piston (h) du vérin hydraulique (i) placé à l'extérieur. Un réservoir d'air comprimé à haute pression muni d'une vanne de lancement est placé à proximité du vérin pneumatique (g) et sert à alimenter ce dernier en énergie nécessaire au lancement. Un conduit (j) prolonge le vérin hydraulique jusqu'à la coque extérieure du sous-marin et sert à canaliser l'eau de mer prélevée dans le milieu marin lors du déplacement du piston hydraulique. Certains dispositifs de refoulement d'eau sont équipés d'un conduit résistant à la pression d'immersion et sont munis d'un obturateur. Un silencieux est installé sur l'échappement et la purge du vérin pneumatique.According to Figures 1 and 2, the device backflow of water called "water-ram" consists of a pneumatic cylinder (g), placed inside the thick hull of the submarine, resulting in a connection mechanical passing through the thick shell (f), the piston (h) of the hydraulic cylinder (i) placed outside. A high pressure compressed air tank fitted with a launch valve is placed near the cylinder pneumatic (g) and is used to supply the latter with energy required for launch. A conduit (j) extends the hydraulic cylinder to the hull exterior of the submarine and is used to channel water from sea taken from the marine environment during displacement hydraulic piston. Some devices water discharge are equipped with a pipe resistant to immersion pressure and have a shutter. A silencer is installed on the exhaust and the bleeding the pneumatic cylinder.

La demande de brevet européen 0.151.980 décrit et revendique une variante du "water-ram" qui consiste à remplacer le vérin pneumatique, alimenté par de l'air comprimé, par un vérin hydraulique, alimenté par un fluide hydraulique, qui provient d'un accumulateur oléo-pneumatique.European patent application 0.151.980 describes and claims a variant of the "water-ram" which consists of replace the pneumatic cylinder, supplied with air compressed, by a hydraulic cylinder, supplied by a hydraulic fluid, which comes from an accumulator oleo-pneumatic.

Une autre variante, non mise en service à ce jour, remplace le vérin pneumatique par un moteur linéaire.Another variant, not put into service to date, replaces the pneumatic cylinder with a linear motor.

Selon la figure 3, le dispositif de refoulement d'eau est une turbopompe constituée par une turbine à air (k) placée à l'intérieur de la coque épaisse du sous-marin entraínant par l'intermédiaire d'un réducteur (l), une pompe (m) placée à l'extérieur. Un conduit (n) prolonge la pompe (m) jusqu'à la coque extérieure du sous-marin et sert à canaliser l'eau de mer prélevée dans le milieu marin lors du fonctionnement de la pompe. Un circuit d'air comprimé composé d'un réservoir d'air (o) et d'une vanne de lancement (p) alimente la turbine (k) lors de la mise en oeuvre du dispositif. Un silencieux est installé sur l'échappement de la turbine.According to Figure 3, the delivery device water is a turbopump consisting of a turbine air (k) placed inside the thick shell of the submarine driving through a reducer (l), a pump (m) placed outside. A pipe (n) extends the pump (m) to the hull exterior of the submarine and is used to channel water from sea taken from the marine environment during pump operation. A compressed air circuit composed of an air tank (o) and a valve launch (p) powers the turbine (k) during the start-up of the device. A silencer is installed on the turbine exhaust.

Le principe de fonctionnement de ces dispositifs est succinctement décrit ci-après :The operating principle of these devices is briefly described below:

Dans le cas de l'utilisation d'un "water-ram" actionné par un vérin pneumatique (figures 1 et 2), lors d'un lancement, dès l'ouverture de la vanne de lancement, le piston hydraulique entraíné par le vérin pneumatique alimenté par l'air comprimé haute pression contenu dans le réservoir, refoule l'eau de mer via le caisson de lancement vers le tube lance-torpilles concerné, celui-ci ayant son ouverture latérale ouverte. La mise en pression à l'arrière du tube lance-torpilles permet la chasse de l'arme à l'extérieur du sous-marin.In the case of the use of a "water-ram" actuated by a pneumatic cylinder (Figures 1 and 2), during a launch, as soon as the valve opens launch, the hydraulic piston driven by the cylinder pneumatic powered by high pressure compressed air contained in the tank, discharges seawater via the launch box to the torpedo tube concerned, this one having its lateral opening opened. Pressurization at the rear of the torpedo tube allows hunting of the weapon outside the submarine.

Dans le cas d'un dispositif utilisant une turbopompe (figure 3), l'ouverture de la vanne de lancement alimente en air comprimé la turbine qui entraíne la pompe par l'intermédiaire du réducteur de vitesse. La pompe refoule l'eau prélevée dans le milieu marin vers l'arrière de l'arme via le caisson de lancement et les ouvertures latérales du tube lance-torpilles. La pression hydraulique ainsi établie pousse l'arme hors du tube lance-torpilles.In the case of a device using a turbopump (Figure 3), the valve opening launch supplies compressed air to the turbine which drives the pump through the reduction gear speed. The pump delivers the water taken from the medium sailor towards the back of the weapon via the casing launch and side openings of the torpedo tube. The hydraulic pressure thus established pushes the weapon out of the torpedo tube.

Ces dispositifs largement utilisés sur des sous-marins présentent de part leur architecture et principe de fonctionnement, quelques inconvénients.These devices widely used on submarines present their architecture and principle some disadvantages.

Pour les dispositifs de lancement utilisant un dispositif de refoulement d'eau de type "water-ram" actionné par un vérin pneumatique :

  • l'installation de ces dispositifs de refoulement d'eau est réalisée au cours de la construction du sous-marin et avant la mise en place de la partie avant. Ces dispositifs restent installés pendant toute la durée de vie du bâtiment. L'ensemble vérin pneumatique-vérin hydraulique occupe un espace important de part et d'autre de la coque épaisse et nécessite la réalisation d'une ouverture de coque dans laquelle coulisse la tige du vérin pneumatique. Hors utilisation, le maintien en position "armé" du dispositif expose la liaison mécanique entre le vérin pneumatique et le piston hydraulique aux agressions du milieu marin (salissures et dépôt de concrétions),
  • l'intégrité de la coque épaisse est assurée par des joints d'étanchéité dynamiques situés sur la tige du vérin pneumatique et l'état de surface de cette liaison est primordial, car il ne doit pas détériorer au cours de sa translation, les joints d'étanchéité assurant l'intégrité de la coque épaisse. Ceci impose une maintenance fréquente (manoeuvres périodiques à vide du dispositif en patrouille) pour conserver un état de surface suffisant pour ne pas agresser les joints,
  • en cas de défaillance de cette étanchéité, rien ne s'oppose à l'envahissement par le milieu marin de l'intérieur du bâtiment dans le cas d'une disposition du conduit d'amenée d'eau non résistant et non équipé d'un obturateur de coque,
  • le fonctionnement du dispositif provoque, pendant la chasse de l'arme, le déplacement à grande vitesse du vérin pneumatique et du piston hydraulique qui sont fortement imbriqués dans les structures internes et dans la coque épaisse du sous-marin. Ce mouvement induit des vibrations importantes source de bruit pouvant rendre le bâtiment détectable par l'ennemi. Pendant cette même phase, l'admission d'air comprimé dans la capacité motrice du vérin pneumatique provoque un bruit important,
  • au cours de la mise au repos ou lors de la préparation du dispositif pour une nouvelle chasse succédant à un lancement, la purge de l'air comprimé contenu dans la capacité motrice du vérin pneumatique réalisée dans l'espace réduit que représente l'intérieur d'un sous-marin, provoque une augmentation de la pression de cette enceinte, ainsi qu'un refroidissement sensible de l'atmosphère du sous-marin, surtout lorsque plusieurs chasses sont effectuées dans un laps de temps relativement court. Cette purge provoque un bruit aérien à l'intérieur du sous-marin qui se propage en mer et crée ainsi une autre source d'indiscrétion du bâtiment.
For launching devices using a water-ram type water delivery device actuated by a pneumatic cylinder:
  • the installation of these water delivery devices is carried out during the construction of the submarine and before the installation of the front part. These devices remain installed throughout the life of the building. The pneumatic cylinder-hydraulic cylinder assembly occupies a large space on either side of the thick shell and requires the production of a shell opening in which the rod of the pneumatic cylinder slides. When not in use, keeping the device in the "armed" position exposes the mechanical connection between the pneumatic cylinder and the hydraulic piston to attack by the marine environment (soiling and deposit of concretions),
  • the integrity of the thick shell is ensured by dynamic seals located on the rod of the pneumatic cylinder and the surface condition of this connection is essential, as it must not deteriorate during its translation, the seals d sealing ensuring the integrity of the thick shell. This requires frequent maintenance (periodic vacuum maneuvers of the device on patrol) to maintain a sufficient surface condition so as not to attack the seals,
  • in the event of failure of this seal, nothing prevents invasion by the marine environment of the interior of the building in the case of a provision of the non-resistant water supply duct not equipped with a hull shutter,
  • the operation of the device causes, during the hunting of the weapon, the displacement at high speed of the pneumatic cylinder and the hydraulic piston which are strongly nested in the internal structures and in the thick hull of the submarine. This movement induces significant noise source vibrations that can make the building detectable by the enemy. During this same phase, the admission of compressed air into the drive capacity of the pneumatic cylinder causes significant noise,
  • during the resting period or during the preparation of the device for a new flush following a launch, the bleeding of the compressed air contained in the drive capacity of the pneumatic cylinder carried out in the reduced space represented by the interior d 'a submarine, causes an increase in the pressure of this enclosure, as well as a significant cooling of the atmosphere of the submarine, especially when several hunts are carried out in a relatively short period of time. This purge causes airborne noise inside the submarine which propagates at sea and thus creates another source of indiscretion of the vessel.

Pour les dispositifs de lancement utilisant une turbopompe :

  • l'installation d'une turbopompe impose la réalisation d'une ouverture de grande dimension dans la cloison avant du sous-marin. Le démontage pour entretien de la turbopompe ne peut se faire qu'à l'aide de dispositifs de manutention appropriés et nécessite un clair de passage à l'intérieur du bâtiment, ainsi qu'une ouverture de coque, capables du diamètre extérieur de la bride d'assemblage de la turbopompe à la cloison avant du sous-marin,
  • l'intégrité de la coque épaisse est assurée par des éléments mécaniques de la pompe résistant à la pression d'immersion, mais également par des joints d'étanchéité dynamiques situés sur l'arbre d'entraínement de la pompe qui traverse la coque épaisse du sous-marin,
  • en cas de défaillance de cette étanchéité, rien ne s'oppose à l'envahissement par le milieu marin de l'intérieur du bâtiment dans le cas d'une disposition du conduit d'amenée d'eau non résistant et non équipé d'un obturateur de coque,
  • le fonctionnement de la turbine, outre la surpression et le refroidissement de l'atmosphère à l'intérieur du sous-marin dus à l'échappement de l'air détendu, crée des risques physiologiques graves vis-à-vis du personnel au cours de la détente pendant une durée très brève d'une masse d'air à haute pression. Cette détente brutale produit un bruit aérien très important qui, pour en atténuer les effets, nécessite la mise en place d'un silencieux de grande dimension.
For launching devices using a turbopump:
  • the installation of a turbopump requires the realization of a large opening in the front bulkhead of the submarine. Disassembly for maintenance of the turbopump can only be done using appropriate handling devices and requires a clear passage inside the building, as well as a hull opening, capable of the outside diameter of the flange assembly of the turbopump to the front bulkhead of the submarine,
  • the integrity of the thick shell is ensured by mechanical elements of the pump resistant to immersion pressure, but also by dynamic seals located on the drive shaft of the pump which passes through the thick shell of the submarine,
  • in the event of failure of this seal, nothing prevents invasion by the marine environment of the interior of the building in the case of a provision of the non-resistant water supply duct not equipped with a hull shutter,
  • the operation of the turbine, in addition to the overpressure and cooling of the atmosphere inside the submarine due to the exhaust of the relaxed air, creates serious physiological risks for personnel during the expansion for a very short time of a mass of high pressure air. This sudden expansion produces a very significant air noise which, to mitigate the effects, requires the installation of a large silencer.

Le but de la présente invention est de remédier aux inconvénients de ces dispositifs connus en modifiant l'architecture du dispositif de refoulement, de manière à obtenir une meilleure utilisation de l'énergie pneumatique qui permette d'assurer un fonctionnement avec un niveau de bruit réduit et sans les inconvénients inhérents à la détente de l'air comprimé dans un espace réduit.The object of the present invention is to remedy to the disadvantages of these devices known in modifying the architecture of the delivery device, so as to get better use of the pneumatic energy which makes it possible to ensure a operation with reduced noise level and without the drawbacks inherent in air relaxation compressed in a reduced space.

Un autre but de l'invention est de supprimer la traversée de la coque épaisse par un élément mobile en translation ou en rotation susceptible de compromettre l'intégrité de la coque épaisse.Another object of the invention is to eliminate the through the thick hull by a movable element in translation or rotation likely to compromise the integrity of the thick shell.

Un autre but de l'invention est également de supprimer les manoeuvres périodiques de nettoyage de la tige du vérin pneumatique.Another object of the invention is also to remove the periodic cleaning operations from the pneumatic cylinder rod.

Un autre but de l'invention est également de proposer un dispositif de refoulement d'eau dont la maintenance n'exige pas une immobilisation prolongée du sous-marin.Another object of the invention is also to propose a water delivery device whose maintenance does not require prolonged immobilization of the submarine.

La présente invention permet d'atteindre ces buts et concerne à cet effet un dispositif de refoulement d'eau destiné à équiper une installation de lancement d'objets, notamment torpille, mine ou missile, à partir d'au moins un tube intégré à une structure immergée, mobile ou fixe, notamment un sous-marin, lequel tube est muni d'au moins un obturateur d'extrémité et d'un obturateur latéral le reliant hydrauliquement au dispositif de refoulement par un caisson de lancement rempli d'eau, solidaire de la coque du sous-marin, et constituant un volume fermé et étanche dans lequel s'effectue le refoulement d'eau vers le tube, sous l'action d'un vérin pneumatique menant agissant sur un vérin hydraulique mené par l'intermédiaire de l'eau contenue dans le caisson et prélevée préalablement dans le milieu marin par un conduit d'amenée, caractérisé en ce que le caisson est situé fixement à l'extérieur de la coque et en ce que le vérin pneumatique et le vérin hydraulique constituant le dispositif de refoulement sont amovibles et indépendants pour pouvoir prendre place dans ledit caisson ou en être dissociés, sans intervention sur la coque, seuls des moyens de raccordement fluidiques ou électriques et les tubes de lancement proprement dits traversant la coque.The present invention achieves these goals and for this purpose relates to a delivery device of water intended to equip a launch facility objects, including a torpedo, mine or missile, from at least one tube integrated into an immersed structure, mobile or fixed, in particular a submarine, which tube is provided with at least one end shutter and one lateral shutter connecting it hydraulically to delivery device by a launch box filled with water, secured to the hull of the submarine, and constituting a closed and sealed volume in which the water is pumped back to the tube, under the action of a leading pneumatic cylinder acting on a hydraulic cylinder driven via water contained in the box and previously removed from the marine environment by a supply conduit, characterized by what the subwoofer is fixedly located outside of the shell and in that the pneumatic cylinder and the cylinder hydraulic constituting the delivery device are removable and independent to take place in or be dissociated from said box, without intervention on the hull, only means of fluid or electrical connection and the launch proper through the hull.

Selon une autre caractéristique de l'invention, le dispositif comporte un réservoir de gaz sous pression en liaison directe avec le piston du vérin pneumatique menant pour l'entraíner en déplacement, sans conduit intermédiaire, lequel piston est relié à un piston de refoulement annulaire formant une couronne concentrique autour du vérin pneumatique et apte à se déplacer linéairement, simultanément au piston de celui-ci, dans une chambre concentrique correspondante du vérin hydraulique.According to another characteristic of the invention, the device has a pressurized gas tank in direct connection with the piston of the pneumatic cylinder leading to train him on the move, without conduit intermediate, which piston is connected to a piston of annular discharge forming a concentric crown around the pneumatic cylinder and able to move linearly, simultaneously with the piston thereof, in a corresponding concentric chamber of the cylinder hydraulic.

Selon une autre caractéristique de l'invention, la liaison du piston pneumatique menant au piston hydraulique mené est constituée par un étrier relié par son centre à une extrémité sortante perpendiculaire dudit piston menant et relié par ses extrémités libres à des tirants parallèles à celui-ci et en liaison avec le piston de refoulement mené concentrique, pour constituer un attelage solidaire mobile par rapport aux chambres des vérins pneumatique et hydraulique.According to another characteristic of the invention, the pneumatic piston connection leading to the piston hydraulic driven consists of a stirrup connected by its center at a perpendicular protruding end of said driving piston and connected by its free ends to tie rods parallel to this one and in connection with the concentric driven discharge piston, for constitute a movable hitch with respect to pneumatic and hydraulic cylinder chambers.

D'autres avantages apparaítront au cours de la description qui va suivre comme, par exemple :

  • Le diamètre du piston hydraulique est augmenté pour que sa vitesse de déplacement pendant la chasse soit réduite par rapport à celle d'un piston hydraulique d'un système connu.
  • Le vérin pneumatique est directement alimenté par le réservoir de gaz sous pression, ce qui élimine les tuyautages et appareils de distribution créant des pertes de charges et des singularités sources de bruit. De plus, la vitesse du gaz sous pression au cours de sa détente sera celle du déplacement du piston hydraulique.
  • Le vérin pneumatique fonctionne suivant le principe d'un accumulateur oléo-pneumatique sans qu'il soit nécessaire, dans un enchaínement de plusieurs chasses successives, de purger le gaz comprimé puisque le retour en position "armé" du dispositif est réalisé par le rechargement en fluide hydraulique de la capacité retour du vérin pneumatique à l'aide d'une pompe haute pression. -Le déplacement du piston pneumatique comprime ainsi à nouveau le volume de gaz.
  • L'ensemble constitué par le vérin pneumatique et le vérin hydraulique, imbriqués l'un dans l'autre, est placé à l'extérieur de la coque épaisse du sous-marin sans qu'il y ait d'autres liaisons avec celle-ci que celles de type mécanique de fixation, de type fluide et électrique pour les servitudes et la surveillance de cet ensemble.
  • L'ensemble ainsi réalisé est fixé à la structure extérieure du sous-marin par des liaisons mécaniques de type élastique, de façon à réduire la transmission des vibrations à la coque du sous-marin.
  • Hormis la phase d'utilisation du dispositif de refoulement d'eau, de durée très brève, qui place la tige du piston pneumatique en position sortie, celle-ci est maintenue en position rentrée par le remplissage en fluide hydraulique de la capacité retour du vérin pneumatique, donc soustraite aux agressions du milieu marin.
  • Le dispositif de refoulement d'eau peut être désolidarisé du sous-marin par les seuls démontages des liaisons mécaniques de fixation et des liaisons des circuits de fluides et électriques avec un minimum de travaux permettant ainsi une maintenance plus facile en atelier ou le remplacement d'un ensemble complet dans un minimum de temps.
  • Les matériels installés à l'intérieur de la coque épaisse occupent un espace limité et ne réclament pas de dispositifs particuliers pour leur manutention.
Other advantages will become apparent during the description which follows, for example:
  • The diameter of the hydraulic piston is increased so that its speed of movement during hunting is reduced compared to that of a hydraulic piston of a known system.
  • The pneumatic cylinder is directly supplied by the pressurized gas tank, which eliminates pipes and distribution devices creating pressure losses and singular sources of noise. In addition, the speed of the gas under pressure during its expansion will be that of the displacement of the hydraulic piston.
  • The pneumatic cylinder operates according to the principle of an oleo-pneumatic accumulator without it being necessary, in a sequence of several successive flushes, to purge the compressed gas since the return to the "armed" position of the device is achieved by recharging in hydraulic fluid of the pneumatic cylinder return capacity using a high pressure pump. The displacement of the pneumatic piston thus again compresses the volume of gas.
  • The assembly constituted by the pneumatic cylinder and the hydraulic cylinder, nested one inside the other, is placed outside the thick hull of the submarine without there being any other connections with it. as those of mechanical fixing type, of fluid and electric type for the easements and the surveillance of this set.
  • The assembly thus produced is fixed to the external structure of the submarine by mechanical connections of the elastic type, so as to reduce the transmission of vibrations to the hull of the submarine.
  • Except for the use phase of the water delivery device, of very short duration, which places the rod of the pneumatic piston in the extended position, it is maintained in the retracted position by filling with hydraulic fluid the return capacity of the jack. pneumatic, therefore immune to attacks from the marine environment.
  • The water discharge device can be separated from the submarine by the only dismantling of the mechanical fixing connections and the connections of the fluid and electrical circuits with a minimum of work, thus allowing easier maintenance in the workshop or the replacement of a complete set in a minimum of time.
  • The equipment installed inside the thick hull occupies a limited space and does not require special devices for its handling.

D'autres caractéristiques ressortiront encore au cours de la description qui va suivre et qui devront être considérées isolément ou selon toutes leurs combinaisons techniques possibles.Other characteristics will emerge further during the description which follows and which must be considered in isolation or according to all their possible technical combinations.

Cette description, donnée à titre d'exemple non limitatif, fera mieux comprendre comment l'invention peut être réalisée, en référence aux dessins annexés sur lesquels :

  • les figures 1, 2 et 3 représentent des exemples de réalisation illustrant l'art antérieur;
  • la figure 4 est une vue d'ensemble en coupe selon la ligne A-A de la figure 7;
  • la figure 5 est une vue partielle de la figure 4 a échelle agrandie ;
  • la figure 6 est une vue de détail de la figure 4 montrant un clapet de purge à flotteur équipant le piston hydraulique;
  • la figure 7 est une vue en coupe selon la ligne B-B de la figure 4 ;
  • la figure 8 est une vue du dispositif selon l'invention dans une phase de maintenance;
  • les figures 9, 10a, 10b et 11 sont des schémas de principe du fonctionnement du dispositif selon l'invention au cours de différentes phases.
This description, given by way of nonlimiting example, will make it easier to understand how the invention can be implemented, with reference to the accompanying drawings in which:
  • Figures 1, 2 and 3 show exemplary embodiments illustrating the prior art;
  • Figure 4 is an overall sectional view along line AA of Figure 7;
  • Figure 5 is a partial view of Figure 4 on an enlarged scale;
  • Figure 6 is a detail view of Figure 4 showing a float purge valve fitted to the hydraulic piston;
  • Figure 7 is a sectional view along line BB of Figure 4;
  • Figure 8 is a view of the device according to the invention in a maintenance phase;
  • Figures 9, 10a, 10b and 11 are block diagrams of the operation of the device according to the invention during different phases.

Les figures 4, 5, 6 et 7 représentent un exemple de mise en application de l'invention à bord d'un sous-marin équipé de tubes lance-torpilles.Figures 4, 5, 6 and 7 show an example for implementing the invention on board a submarine equipped with torpedo tubes.

Dans cette configuration qui correspond à la situation "repos" du dispositif, des tubes lance-torpilles 1 munis de l'arme à lancer 5 sont représentés équipés de leurs obturateurs arrière 2 et avant 3 qui peuvent être ouverts ou fermés, ainsi que de leur obturateur latéral 4. Ce dernier qui peut être ouvert ou fermé, obture des orifices d'entrée d'eau 7. Ces orifices mettent en communication le volume interne 8 du tube lance-torpilles ayant son obturateur latéral 4 ouvert avec la capacité interne 10 d'un caisson de lancement 9. Il est à noter que dans l'exemple représenté, le caisson de lancement 9 est relié à la coque épaisse 11 du sous-marin et réalise ainsi un volume fermé et étanche, mais la même fonction peut être assurée par toute autre disposition du caisson de lancement.In this configuration which corresponds to the "rest" situation of the device, torpedo tubes 1 with the throwing weapon 5 are shown equipped with their rear 2 and front 3 shutters which can be opened or closed, as well as their lateral shutter 4. The latter which can be opened or closed, plugs water inlet ports 7. These ports connect internal volume 8 of the torpedo tube having its lateral shutter 4 opened with the internal capacity 10 of a box of launch 9. Note that in the example shown, the launch box 9 is connected to the thick hull 11 of the submarine and thus achieves a closed and sealed volume, but the same function can be ensured by any other provision of the launch.

La capacité 10 du caisson de lancement 9 communique avec le volume 12 d'un vérin hydraulique 13 grâce à sa partie inférieure ouverte, ainsi que par les lumières 14 disposées sur la paroi latérale du vérin 13. Ce dernier est relié au caisson de lancement 9 par une bride 35 fixée par des liaisons élastiques 36. Un dispositif d'étanchéité 37 isole les capacités 10 et 12 du milieu extérieur.The capacity 10 of the launch box 9 communicates with the volume 12 of a hydraulic cylinder 13 thanks to its open lower part, as well as lights 14 arranged on the side wall of the jack 13. The latter is connected to the launch box 9 by a flange 35 fixed by elastic connections 36. A sealing device 37 isolates capacities 10 and 12 from the outside environment.

A l'intérieur du vérin 13, est placé d'une manière concentrique un vérin pneumatique 26 dont la bride 27 reçoit un réservoir de gaz comprimé 28. Des joints 29 assurent l'étanchéité entre les volumes internes du vérin 26 et du réservoir 28 et le milieu extérieur.Inside the cylinder 13, is placed in a way concentric a pneumatic cylinder 26 whose flange 27 receives a compressed gas tank 28. Seals 29 seal between the internal volumes of the cylinder 26 and reservoir 28 and the outside environment.

Un circuit de gaz comprimé composé des tuyautages 51a, 51b met en communication le volume interne du réservoir 28 avec une source de production et de distribution de gaz comprimé du sous-marin. Une vanne 52 permet d'isoler ce circuit.A compressed gas circuit composed of pipes 51a, 51b connects the internal volume of the reservoir 28 with a source of production and distribution of compressed gas from the submarine. A valve 52 allows this circuit to be isolated.

Une enveloppe 25 à l'intérieur de laquelle se trouve un isolant thermique 54, entoure le vérin pneumatique 26 de façon à faire obstacle aux échanges thermiques par conduction et convection entre le gaz détendu et refroidi du réservoir 28 lors d'une chasse et le milieu extérieur. La température du gaz détendu ne doit pas refroidir la paroi sur laquelle s'appuie le piston hydraulique 15 du vérin 13, afin d'éviter la formation de glace susceptible d'empêcher le retour en position de ce dernier.An envelope 25 inside which finds a thermal insulator 54, surrounds the cylinder tire 26 so as to hinder trade thermal by conduction and convection between gas relaxed and cooled from tank 28 during a flush and the outside environment. The temperature of the expanded gas must not cool the wall on which the hydraulic piston 15 of cylinder 13, in order to avoid ice formation likely to prevent the return in position of the latter.

Le mouvement du piston pneumatique 20 du vérin 26 est transmis au piston hydraulique concentrique 15 de forme circulaire, ou toute autre forme adaptée à celle du cylindre 13, et annulaire par l'intermédiaire d'un étrier 21 et de tirants 17 (au moins deux).The movement of the pneumatic piston 20 of the cylinder 26 is transmitted to the concentric hydraulic piston 15 of circular shape, or any other shape adapted to that of cylinder 13, and annular via a stirrup 21 and tie rods 17 (at least two).

Les tirants 17 sont guidés en translation par des paliers 18, solidaires de supports 19 fixés au vérin 13. A chaque palier, est associé un dispositif de freinage 16 des tirants 17 lorsqu'ils arrivent en fin de course de lancement. Le vérin 13 et l'enveloppe 25 du vérin pneumatique 26, dont les parois sont revêtues d'un matériau adapté aux conditions de frottement dans le milieu marin, servent de guide concentrique au piston 15. L'étanchéité dynamique entre le volume 12 concentrique et le milieu extérieur est assurée par les joints 22 et 23, le joint situé côté volume 12 étant de préférence de type racleur.The tie rods 17 are guided in translation by bearings 18, integral with supports 19 fixed to the jack 13. Each level is associated with a braking 16 of the tie rods 17 when they reach the end launch race. The cylinder 13 and the casing 25 pneumatic cylinder 26, the walls of which are coated of a material adapted to the friction conditions in the marine environment, serve as a concentric guide to the piston 15. Dynamic sealing between volume 12 concentric and the external environment is provided by seals 22 and 23, the seal located on the volume side 12 being of preferably scraper type.

Selon la figure 6, le piston 15 est équipé de clapets de purge à flotteur 24 intercalés entre les liaisons aux tirants 17. Dans la position représentée, ces clapets, outre la purge de l'air emprisonné dans le volume 12, permettent, lors du retour du piston 15 en position "armé" après un lancement, d'alimenter le volume 12 en eau provenant du milieu extérieur.According to Figure 6, the piston 15 is equipped with float drain valves 24 interposed between the connections to tie rods 17. In the position shown, these valves, in addition to purging the air trapped in the volume 12, allow, when the piston 15 returns in "armed" position after a launch, to supply the 12 volume of water from the outside environment.

La capacité 31 du vérin pneumatique 26 contient un fluide hydraulique et peut être mise en communication avec une caisse de décharge 6 par l'intermédiaire d'un circuit comprenant la bride 30 sur laquelle est raccordé le tuyautage 32 a, b, c, d et au travers du dispositif combinant une vanne 33 qui peut être ouverte ou fermée, et un moyen de régulation du débit 34 du fluide hydraulique refoulé vers la caisse de décharge 6 au cours du déplacement du piston 20. Le mouvement de ce dernier est freiné en fin de course de lancement par un dispositif 55 intégré dans la bride 30.The capacity 31 of the pneumatic cylinder 26 contains a hydraulic fluid and can be ported with a discharge box 6 via a circuit comprising the flange 30 on which is connected the piping 32 a, b, c, d and through the device combining a valve 33 which can be opened or closed, and a means for regulating the flow rate 34 of the hydraulic fluid discharged to the discharge box 6 during the displacement of the piston 20. The movement of the latter is braked at the end of the launch stroke by a device 55 integrated in the flange 30.

Un circuit de fluide hydraulique composé des tuyautages 29 a, b, c permet, grâce à une pompe 56, de refouler le liquide hydraulique contenu dans la caisse de décharge 6 vers la capacité 31, de façon à provoquer le déplacement du piston 20 de sa position fin de lancement vers la position "armé", ce qui a également pour conséquence de comprimer le volume de gaz détendu du réservoir 28. Une vanne 53 permet d'isoler ce circuit en dehors de sa phase d'utilisation et un clapet de non-retour 38 empêche la mise en pression du circuit en amont du clapet.A hydraulic fluid circuit composed of pipes 29 a, b, c allows, thanks to a pump 56, to discharge the hydraulic fluid contained in the body discharge 6 to capacity 31, so as to cause displacement of the piston 20 from its end position launch towards the "armed" position, which also as a consequence of compressing the volume of expanded gas of the reservoir 28. A valve 53 makes it possible to isolate this circuit outside of its use phase and a non-return valve 38 prevents pressurization of the circuit upstream of the valve.

Au-dessus du vérin hydraulique 13, est disposé un support 39 fixé par des liaisons élastiques 40 à une structure 41 solidaire du caisson de lancement 9. Ce support assure la reprise des efforts développés par le vérin pneumatique et il comporte à cet effet une liaison 50 immobilisant le corps du vérin 26.Above the hydraulic cylinder 13, is disposed a support 39 fixed by elastic connections 40 to a structure 41 secured to the launch box 9. This support ensures the resumption of the efforts developed by the pneumatic cylinder and it has for this purpose a link 50 immobilizing the body of the jack 26.

Un canal d'amenée d'eau 42 équipé d'une grille 43 relie la coque extérieure 49 au support 39. Un joint souple 44 assure la continuité du profil de la coque extérieure.A water supply channel 42 fitted with a grid 43 connects the outer shell 49 to the support 39. A seal flexible 44 ensures the continuity of the hull profile outside.

Un circuit composé des tuyautages 45 a, b et de la vanne 46 qui peut être ouverte ou fermée, permet de mettre en équipression les volumes 12 et 10 avec le milieu extérieur ou de les isoler de ce milieu.A circuit composed of pipes 45 a, b and valve 46 which can be opened or closed, allows equipping volumes 12 and 10 with the external environment or to isolate them from this environment.

Dans cet exemple de réalisation, le dispositif de refoulement d'eau est installé dans la partie supérieure du sous-marin, mais toute autre disposition remplissant les mêmes fonctions peut être envisagée. Les circuits électriques de surveillance du dispositif ne sont pas représentés.In this embodiment, the device for water discharge is installed in the part upper part of the submarine, but any other provision performing the same functions may be considered. The electrical circuits for monitoring the device are not shown.

Selon la figure 8, des raccords démontables 47 et 48, intercalés entre les éléments des tuyautages 32 et 51, sont placés de façon telle qu'ils permettent, après avoir été démontés, le passage de l'ensemble 13, 26 au travers des ouvertures de la partie supérieure du caisson 9, de la structure 41 et de la coque extérieure 49.According to FIG. 8, removable connectors 47 and 48, inserted between the elements of the pipes 32 and 51, are placed in such a way that they allow, after have been dismantled, the passage of the assembly 13, 26 to through openings in the upper part of the box 9, structure 41 and the outer shell 49.

Le fonctionnement du dispositif est le suivant :The operation of the device is as follows:

Selon la figure 9 correspondant à la situation du dispositif avant le lancement, le tube lance-torpilles 1 muni de l'arme à lancer 5 a été préalablement rempli d'eau et la pression du volume interne 8 équilibrée par rapport à la pression de l'enceinte 10. Puis les obturateurs 3 et 4 ayant été ouverts, la vanne d'équilibrage 46 est fermée.According to Figure 9 corresponding to the situation of the device before launch, the torpedo tube 1 with the throwing weapon 5 has been previously filled of water and the pressure of the internal volume 8 balanced by compared to the pressure of enclosure 10. Then the shutters 3 and 4 having been opened, the valve balancing 46 is closed.

Le piston pneumatique 20 relié au piston hydraulique concentrique 15 est maintenu dans la position I par la capacité 31 remplie de fluide hydraulique, ce dernier ne pouvant s'écouler vers la caisse de décharge 6 lorsque la vanne 33 est maintenue fermée.The pneumatic piston 20 connected to the piston concentric hydraulic 15 is maintained in the position I by capacity 31 filled with fluid hydraulic, the latter being unable to flow towards the discharge box 6 when the valve 33 is held closed.

La capacité 36 du réservoir 28 est remplie de gaz à la pression correspondant aux conditions de lancement.The capacity 36 of the tank 28 is filled with gas at the pressure corresponding to the conditions of launch.

Selon la figure 10a correspondant à la position de lancement, l'ouverture de la vanne 33 autorise par les tuyautages 32 a, b, c et d, le refoulement vers la caisse de décharge 6 et au travers du dispositif de régulation du débit 34 du fluide hydraulique contenu dans la capacité 31 par le déplacement jusqu'à la position II du piston pneumatique 20 poussé par le gaz sous pression contenu dans le réservoir 28. Le piston hydraulique concentrique 15 entrainé par le piston pneumatique 20 pousse l'eau du volume 12 vers le volume 10 du caisson de lancement 9 et alimente ainsi en eau sous pression au travers des orifices d'entrée d'eau 7, le volume 8 du tube lance-torpilles 1 jusqu'à provoquer le départ de l'arme à lancer et l'alimentation de ce volume pendant le parcours de l'arme jusqu'à sa sortie du tube lance-torpilles.According to Figure 10a corresponding to the position of launch, the opening of the valve 33 authorized by the pipes 32 a, b, c and d, the discharge to the discharge box 6 and through the regulation of the flow rate 34 of the hydraulic fluid contained in capacity 31 by moving up to the position II of the pneumatic piston 20 pushed by the gas under pressure contained in the reservoir 28. The piston concentric hydraulics 15 driven by the piston pneumatic 20 pushes water from volume 12 to volume 10 of the launch box 9 and thus supplies water under pressure through the water inlet orifices 7, the volume 8 of the torpedo tube 1 until causing the departure of the throwing weapon and the feeding of this volume during the course of the weapon until its exit torpedo tube.

Lorsque le piston hydraulique 15 atteint la position II, les dispositifs de freinage 16 et 55 incorporés respectivement aux guides 18 et à la bride 30 commencent à agir et ralentissent le mouvement des pistons 15 et 20 entre les positions II et III. L'arrêt du mouvement est provoqué par le contact du piston 20 avec la bride 30. Pendant le déplacement du piston 15 entre les positions II et III, ce dernier découvre progressivement les lumières 14 du cylindre hydraulique 13, de façon à alimenter le volume 10 du caisson de lancement en eau venant du milieu extérieur pour ne pas provoquer le coup de bélier du à l'arrêt brusque de la colonne d'eau en mouvement.When the hydraulic piston 15 reaches the position II, braking devices 16 and 55 incorporated in guides 18 and the flange respectively 30 begin to act and slow the movement of pistons 15 and 20 between positions II and III. The judgment movement is caused by contact with piston 20 with the flange 30. During the displacement of the piston 15 between positions II and III, the latter discovers gradually the lights 14 of the hydraulic cylinder 13, so as to supply the volume 10 of the launch of water from the outside environment so as not to cause the water hammer due to the sudden stop of the moving water column.

Selon la figure 10b, un autre mode de réalisation est représenté et peut être envisagé pour assurer cette dernière fonction : les lumières 14 sont supprimées et le passage de l'eau du milieu extérieur vers les capacités 12 et 10, lorsque le piston 15 ralentit, est assuré par l'ouverture des clapets à flotteur 24 dont leurs caractéristiques (section de passage, différence de pression provoquant leur ouverture) sont adaptées à cet usage (voir figure 6).According to FIG. 10b, another embodiment is shown and can be considered to ensure this last function: lights 14 are deleted and the passage of water from the outside environment to capacities 12 and 10, when the piston 15 slows down, is ensured by the opening of float valves 24 of which their characteristics (passage section, difference pressure causing their opening) are adapted to this use (see Figure 6).

Enfin, selon la figure 11 correspondant au retour en position "armé" du dispositif, l'obturateur 4 du tube lance-torpilles venant de lancer est refermé, ainsi que la vanne de lancement 33. La vanne d'équilibrage 46 est à nouveau ouverte.Finally, according to Figure 11 corresponding to the return in the "armed" position of the device, the shutter 4 of the torpedo tube just launched is closed, as well as the launch valve 33. The valve balancing 46 is open again.

L'ouverture de la vanne 53 et la mise en route de la pompe 56 alimentent en fluide hydraulique sous pression, prélevé dans la caisse de décharge 6 et par l'intermédiaire des tuyautages 29 a, b c, 32a, b, c, la capacité 31 du vérin pneumatique 26. La pression générée par la pompe est telle que, compte tenu de la section motrice du piston pneumatique 20 côté fluide hydraulique inférieure à la section de ce même piston côté gaz sous pression, la poussée provoquée par la mise en pression de la capacité 31 est supérieure à la poussée due au gaz sous pression partiellement détendu dans le réservoir 28. Le déplacement vers la position I du piston 20 entraínant le piston 15 est alors réalisé, ainsi que la compression du gaz contenu dans le réservoir 28.The opening of valve 53 and the start-up of the pump 56 supplies hydraulic fluid under pressure, taken from the discharge tank 6 and by through the pipes 29 a, b c, 32a, b, c, la air cylinder capacity 31 26. The pressure generated by the pump is such that given the driving section of the pneumatic piston 20 on the fluid side hydraulic lower than the section of this same piston gas side under pressure, the thrust caused by the pressurization of the capacity 31 is greater than the thrust due to partially expanded pressurized gas in tank 28. Moving to position I of the piston 20 driving the piston 15 is then produced, as well as the compression of the gas contained in the tank 28.

Pendant le retour du piston 15 vers la position I, les clapets à flotteur 24 agissent comme des clapets de non-retour et permettent le passage de l'eau prélevée dans le milieu extérieur vers la capacité 12 du vérin hydraulique 13.During the return of the piston 15 to position I, the float valves 24 act as check valves non-return and allow the passage of the water withdrawn in the external environment towards capacity 12 of the jack hydraulics 13.

Lorsque le piston 20 est à nouveau en position I, la vanne 53 est fermée et le dispositif est prêt pour un nouveau lancement après que la pression du gaz comprimé contenu dans le réservoir 28 a été ajustée à la pression nominale.When the piston 20 is again in position I, valve 53 is closed and the device is ready for a new launch after the gas pressure compressed in reservoir 28 has been adjusted to nominal pressure.

Le dispositif qui vient d'être décrit, trouve également son application dans l'éjection de leurres ou tout autre type de contre-mesures, ainsi que dans l'éjection de corps propulsés sous-marins récupérables ou encore l'éjection de corps inertes pour des opérations de délestage.The device which has just been described finds also its application in the ejection of lures or any other type of countermeasures, as well as in ejection of recoverable submarine powered bodies or the ejection of inert bodies for load shedding operations.

Claims (13)

Dispositif de refoulement d'eau destiné à équiper une installation de lancement d'objets, notamment torpille, mine ou missile (5), à partir d'au moins un tube (1) intégré à une structure immergée, mobile ou fixe, notamment un sous-marin, lequel tube (1) est muni d'au moins un obturateur d'extrémité (3) et d'un obturateur latéral (7) le reliant hydrauliquement au dispositif de refoulement par un caisson de lancement (9) rempli d'eau, solidaire de la coque (11) du sous-marin, et constituant un volume fermé et étanche dans lequel s'effectue le refoulement d'eau vers le tube (1), sous l'action d'un vérin pneumatique menant (20) agissant sur un vérin hydraulique mené (13) par l'intermédiaire de l'eau contenue dans le caisson (9) et prélevée préalablement dans le milieu marin bar un conduit d'amenée, caractérisé en ce que le caisson (9) est situé fixement à l'extérieur de la coque (11) et en ce que le vérin pneumatique (26) et le vérin hydraulique (13) constituant le dispositif de refoulement sont amovibles et indépendants pour pouvoir prendre place dans ledit caisson ou en être dissociés, sans intervention sur la coque (11), seuls des moyens de raccordement fluidiques ou électriques et les tubes de lancement (1) proprement dits traversant la coque (11).Water delivery device for equip an installation for launching objects, in particular torpedo, mine or missile (5), from at least at least one tube (1) integrated into an immersed structure, mobile or fixed, in particular a submarine, which tube (1) is provided with at least one end shutter (3) and a lateral shutter (7) connecting it hydraulically to the delivery device by a launch box (9) filled with water, integral with the hull (11) of the submarine, and constituting a volume closed and sealed in which the delivery takes place of water to the tube (1), under the action of a jack pneumatic drive (20) acting on a jack hydraulic driven (13) via water contained in the box (9) and previously removed in the marine environment bar a supply pipe, characterized in that the box (9) is fixedly located outside the hull (11) and in that the jack pneumatic (26) and hydraulic cylinder (13) constituting the delivery device are removable and independent to be able to take place in said box or be dissociated from it, without intervention on the shell (11), only fluid connection means or electric and launch tubes (1) properly said to pass through the hull (11). Dispositif de refoulement selon la revendication 1, caractérisé en ce qu'il comporte un réservoir de gaz sous pression (28) en liaison directe avec le piston (20) du vérin pneumatique menant (26) pour l'entraíner en déplacement, sans conduit intermédiaire, lequel piston (20) est relié à un piston de refoulement annulaire (15) formant une couronne concentrique autour dudit vérin pneumatique (26) et apte à se déplacer linéairement, simultanément au piston (20) de celui-ci, dans une chambre concentrique correspondante du vérin hydraulique (13).Delivery device according to claim 1, characterized in that it comprises a pressurized gas tank (28) in direct connection with the piston (20) of the pneumatic drive cylinder (26) to train him on the move, without conduit intermediate, which piston (20) is connected to a piston annular delivery (15) forming a crown concentric around said pneumatic cylinder (26) and able to move linearly, simultaneously with piston (20) thereof, in a concentric chamber corresponding to the hydraulic cylinder (13). Dispositif de refoulement selon la revendication 2, caractérisé en ce que la liaison du piston pneumatique menant (20) au piston hydraulique mené (13) est constituée par un étrier (21) relié par son centre à une extrémité sortante perpendiculaire dudit piston menant (20) et relié par ses extrémités libres à des tirants (17) parallèles à celui-ci et en liaison avec le piston de refoulement mené concentrique (15), pour constituer un attelage solidaire mobile par rapport aux chambres des vérins pneumatique (26) et hydraulique (13).Delivery device according to claim 2, characterized in that the connection of pneumatic piston leading (20) to the hydraulic piston led (13) is constituted by a stirrup (21) connected by its center at a perpendicular protruding end of said driving piston (20) and connected by its ends free to tie rods (17) parallel to it and in connection with the concentric driven discharge piston (15), to constitute a movable integral coupling by relative to the chambers of the pneumatic cylinders (26) and hydraulic (13). Dispositif de refoulement selon la revendication 2, caractérisé en ce que le vérin pneumatique (26) reçoit directement le réservoir de gaz comprimé (28) par l'intermédiaire d'une bride (27) et de joints (29) assurant l'étanchéité entre les volumes internes du vérin (26) et du réservoir (28) et le milieu extérieur.Delivery device according to claim 2, characterized in that the cylinder pneumatic (26) directly receives the gas tank compressed (28) via a flange (27) and seals (29) ensuring sealing between the volumes cylinder (26) and reservoir (28) internals and the outdoor environment. Dispositif de refoulement selon la revendication 2, caractérisé en ce qu'un circuit de gaz comprimé composé de tuyaux (51a, 51b) met en communication le volume interne (36) du réservoir (28) avec une source de production et de distribution de gaz comprimé du sous-marin. Delivery device according to claim 2, characterized in that a gas circuit tablet composed of pipes (51a, 51b) communicating the internal volume (36) of the reservoir (28) with a source of gas production and distribution submarine tablet. Dispositif de refoulement selon la revendication 3, caractérisé en ce que le piston (15) est équipé de clapets de purge à flotteur (24) intercalés entre les liaisons des tirants (17) permettant, non seulement la purge de l'air emprisonné dans le volume (12) du vérin hydraulique (13), mais également l'alimentation en eau dudit volume lors du retour du piston (15) en position "armé" après un lancement.Delivery device according to claim 3, characterized in that the piston (15) is fitted with float drain valves (24) interposed between the tie rod connections (17) allowing not only the purging of trapped air in the volume (12) of the hydraulic cylinder (13), but also the supply of water to said volume during return of the piston (15) to the "armed" position after a launch. Dispositif de refoulement selon l'une des revendications précédentes, caractérisé en ce que la capacité (31) du vérin pneumatique (26) contient un fluide hydraulique et peut être mise en communication avec une caisse de décharge (6) par l'intermédiaire d'un circuit comprenant une bride (30) sur laquelle sont raccordés des tuyaux (32a, 32b, 32c), et au travers du dispositif combinant une vanne (33) qui peut être ouverte ou fermée et un moyen de régulation du débit (34) du fluide hydraulique refoulé vers la caisse de décharge (6) au cours du déplacement du piston (20).Delivery device according to one of the previous claims, characterized in that the capacity (31) of the pneumatic cylinder (26) contains a hydraulic fluid and can be ported with a discharge box (6) via a circuit comprising a flange (30) on which pipes (32a, 32b, 32c) are connected, and to the through the device combining a valve (33) which can be open or closed and a means of regulating the flow rate (34) of the hydraulic fluid delivered to the body discharge (6) during movement of the piston (20). Dispositif de refoulement selon la revendication 7, caractérisé en ce qu'un circuit de fluide hydraulique composé de tuyaux (29a, 29b, 29c) permet grâce à une pompe (56) de refouler le liquide hydraulique contenu dans la caisse de décharge (6) vers la capacité (31), de façon à provoquer le déplacement du piston (20) de sa position fin de lancement vers la position "armé", ce qui a également pour conséquence de comprimer le volume de gaz détendu dans le réservoir (28) du piston (20). Delivery device according to claim 7, characterized in that a circuit for hydraulic fluid composed of pipes (29a, 29b, 29c) allows thanks to a pump (56) to discharge the liquid hydraulic contained in the discharge box (6) to the capacity (31), so as to cause displacement of the piston (20) from its end of launch position towards the "armed" position, which also results in compress the volume of expanded gas in the tank (28) of the piston (20). Dispositif de refoulement selon la revendication 8, caractérisé en ce qu'une vanne (53) permet d'isoler le circuit (29a, 29b, 29c), en dehors de sa phase d'utilisation, et un clapet de non-retour (38) empêche la mise en pression du circuit en amont dudit clapet.Delivery device according to claim 8, characterized in that a valve (53) allows to isolate the circuit (29a, 29b, 29c), outside of its use phase, and a non-return valve (38) prevents pressurization of the upstream circuit of said valve. Dispositif de refoulement selon l'une des revendications précédentes, caractérisé en ce que, au-dessus du vérin hydraulique (13), est disposé un support (39), fixé par des liaisons élastiques (40) à une structure (41), solidaire du caisson de lancement (9).Delivery device according to one of the previous claims, characterized in that, above of the hydraulic cylinder (13), is disposed a support (39), fixed by elastic connections (40) to a structure (41), integral with the launch box (9). Dispositif de refoulement selon l'une des revendications précédentes, caractérisé en ce qu'un canal d'amenée d'eau (42) équipé d'une grille (43) relie la coque extérieure (49) au support (39), un joint souple (44) assurant la continuité du profil de la coque extérieure (49).Delivery device according to one of the previous claims, characterized in that water supply channel (42) fitted with a grid (43) connects the outer shell (49) to the support (39), a flexible seal (44) ensuring the continuity of the profile the outer shell (49). Dispositif de refoulement selon l'une des revendications précédentes, caractérisé en ce qu'un circuit composé de tuyaux (45a, 45b) et d'une vanne (46), qui peut être ouverte ou fermée, permet de mettre en équipression les volumes (12 et 10), respectivement du vérin hydraulique (13) et du caisson de lancement (9), avec le milieu extérieur ou de les isoler de ce milieu.Delivery device according to one of the previous claims, characterized in that circuit composed of pipes (45a, 45b) and a valve (46), which can be opened or closed, allows equipping volumes (12 and 10), respectively hydraulic cylinder (13) and launch box (9), with the external environment or to isolate them from this middle. Dispositif de refoulement selon l'une des revendications précédentes, caractérisé en ce qu'il est installé dans la partie supérieure du sous-marin, des raccords démontables (47 et 48) étant intercalés entre les tuyaux (32 et 51) permettent, après avoir été démontés, le passage de l'ensemble (13, 26) au travers des ouvertures de la partie supérieure du caisson (9), de la structure (41) et de la coque extérieure (49).Delivery device according to one of the previous claims, characterized in that it is installed in the upper part of the submarine, removable connectors (47 and 48) being interposed between the pipes (32 and 51) allow, after having been disassembled, the passage of the assembly (13, 26) through openings in the upper part of the box (9), of the structure (41) and the outer shell (49).
EP98401155A 1997-05-15 1998-05-14 Apparatus for expelling water in a torpedo launch tub of a sub-marine Expired - Lifetime EP0881455B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9705960 1997-05-15
FR9705960A FR2763391B1 (en) 1997-05-15 1997-05-15 WATER DISCHARGE DEVICE FOR A LAUNCHING INSTALLATION, IN PARTICULAR OF TORPEDOS OF A SUBMARINE

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EP0881455A1 true EP0881455A1 (en) 1998-12-02
EP0881455B1 EP0881455B1 (en) 2002-07-24

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EP (1) EP0881455B1 (en)
DE (1) DE69806690T2 (en)
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Also Published As

Publication number Publication date
FR2763391A1 (en) 1998-11-20
DE69806690D1 (en) 2002-08-29
FR2763391B1 (en) 1999-06-18
EP0881455B1 (en) 2002-07-24
DE69806690T2 (en) 2002-12-05
US6220196B1 (en) 2001-04-24

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