EP2343491A1 - System for feeding with pressurised fluid an ejection piston of a launching tube of a weapon on a submarine - Google Patents

System for feeding with pressurised fluid an ejection piston of a launching tube of a weapon on a submarine Download PDF

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Publication number
EP2343491A1
EP2343491A1 EP11305003A EP11305003A EP2343491A1 EP 2343491 A1 EP2343491 A1 EP 2343491A1 EP 11305003 A EP11305003 A EP 11305003A EP 11305003 A EP11305003 A EP 11305003A EP 2343491 A1 EP2343491 A1 EP 2343491A1
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EP
European Patent Office
Prior art keywords
fluid
valve
rammer
supply system
pressurized fluid
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11305003A
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German (de)
French (fr)
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EP2343491B1 (en
Inventor
Arnaud Damoiseau
Stéphane Niot
Thierry Taillefet
Johan Raffoux
Cyril Baudrand
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Naval Group SA
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DCNS SA
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Publication of EP2343491A1 publication Critical patent/EP2343491A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41F—APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS
    • F41F3/00—Rocket or torpedo launchers
    • F41F3/08—Rocket or torpedo launchers for marine torpedoes
    • F41F3/10—Rocket or torpedo launchers for marine torpedoes from below the surface of the water
    • 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
    • B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
    • B63G8/28—Arrangement of offensive or defensive equipment
    • B63G8/32—Arrangement of offensive or defensive equipment of torpedo-launching means; of torpedo stores or handlers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/38—Loading arrangements, i.e. for bringing the ammunition into the firing position
    • F41A9/39—Ramming arrangements
    • F41A9/42—Rammers separate from breech-block
    • F41A9/44—Fluid-operated piston rammers

Definitions

  • the present invention relates to a system for supplying pressurized fluid from a ramming machine to a launching tube of a weapon from an underwater vehicle.
  • Such a tube is commonly called “torpedo tube” and can be integrated into an underwater vehicle such as a submarine itself, to launch weapons such as for example torpedoes or missiles, etc. .
  • Drones can also be launched in this way using such a tube.
  • the supply systems for this type of application comprise a launch valve interposed between a source of pressurized fluid and the collector and this valve then comprises a valve body in which is mounted a movable valve when launching the weapon by control means, between a closed position and an open position of the valve for supplying the pressurized pressurized fluid.
  • This valve is also associated with means for braking its opening displacement, which comprise a fluidic retarder with two fluid chambers connected through diaphragm means for rolling this fluid.
  • Such systems are used, for example, to supply a pneumatic rammer which then comprises a pneumatic ram with several telescopic pistons which make it possible to launch weapons having masses, lengths and different geometries.
  • the object of the invention is therefore to solve these problems.
  • the subject of the invention is a system for supplying pressurized fluid to a ramming device of a launching tube of a weapon from an underwater vehicle, of the type comprising an interposed launching valve. between a source of pressurized fluid and the damper and comprising a valve body in which is mounted a movable valve when launching the weapon by control means, between a closed position and an open position of the valve for supplying the pressurized fluid exchanger, this valve being associated with means for braking its opening displacement comprising a fluidic retarder with two fluid chambers connected through means for diaphragm rolling of this fluid, characterized in the fluid rolling diaphragm means comprise variable diaphragm means according to the position of the valve.
  • the rammer is generally designated by reference 1 on the figure 1 and is for example formed by a pneumatic ram with several telescopic pistons for ejecting the weapon from the tube.
  • the supply system of this damper is referred to by the general reference 2 in general.
  • this feed system comprises a launch valve designated by the general reference 3, interposed between a source of pressurized fluid designated by the general reference 4 and the collector 1.
  • the source of pressurized fluid is for example formed by pressurized gas bottle means such as for example compressed air bottles.
  • the throwing valve 3 comprises a valve body designated by the general reference 5, in which is mounted a valve designated by the general reference 6, movable at the launch of the weapon by control means designated by the reference 7, between a closed position and an open position of the valve for supplying the pressurized fluid with the pressurized fluid.
  • This valve and more particularly the valve thereof, are also associated with means for braking the opening movement of this valve, these means being designated by the general reference 8 in this figure and comprising for example a fluidic retarder to two fluid chambers connected through diaphragm means for rolling this fluid.
  • the fluid is for example oil.
  • the two chambers of the retarder are designated by the general references 9 and 10
  • the rolling diaphragm means of this fluid are designated by the general reference 11.
  • An elastic member such as for example a spring designated by the general reference 12, can also be arranged in one of the chambers of the retarder, such as the chamber 9.
  • these rolling diaphragm means comprise a reduced cross-section portion of passage fluid between the two chambers of the retarder, this portion of reduced section being designated by the general reference 13.
  • the compressed air of the launch air bottle means holds the valve flap 6 in the closed position.
  • an operator actuates for example the control means 7 to divert a portion of the compressed air into an actuating chamber 14 of the valve 6, which then causes the latter to move towards an open position.
  • This displacement is done against the elastic biasing of the spring 12 and causes a discharge of the fluid contained in the first chamber 9 of the retarder through the means 11 1 to diaphragm rolling of the fluid and the portion of reduced section 13 of those in the direction of the second chamber 10 of the retarder.
  • Such a structure thus makes it possible to slow down the opening movement of the valve in order to limit the thrust force seen at the base of the weapon.
  • the fluid rolling diaphragm means comprise variable diaphragm means according to the position of the valve plug.
  • these fluid rolling diaphragm means comprise variable diaphragm means depending on the position of the valve.
  • a diaphragm body designated by the general reference 16 with two chambers respectively 17 and 18, separated by a web 19, provided with at least one fluid passage orifice, this orifice being designated by the general reference 20.
  • a needle designated by the general reference 21 is movably mounted in this diaphragm body and has a needle head designated by the general reference 22, adapted to extend into the fluid passage opening 20 formed in the web 19 separating them.
  • two chambers 17 and 18 of the diaphragm body are movably mounted in this diaphragm body and has a needle head designated by the general reference 22, adapted to extend into the fluid passage opening 20 formed in the web 19 separating them.
  • this needle 21 is slidably movable in the diaphragm body under the action of the fluid during the displacement of the throttle valve valve towards its open position, against the solicitation elastic means constituted for example by a helical spring designated by the general reference 23.
  • the head 22 of the needle 21 defines with the web 19, a variable fluid passage section according to the position of the valve.
  • the head 22 of the needle 21 comprises at least one groove designated by the general reference 24 on the figure 3 , of increasing depth towards the free end of this head and thus defining with the web 19 of the diaphragm body, a variable rolling section of the fluid according to the position of this head and therefore the needle.
  • the resilient biasing means of the needle that is to say the spring 23, may be associated with means for adjusting their calibration, these adjustment means being designated by the general reference 25.
  • the spring 23 has in fact a first end adapted to cooperate with a bearing surface 26 of the needle 21 and a second end associated with the setting means 25 of the calibration thereof.
  • These adjustment means comprise, for example, a support flange for the corresponding end of this spring, this bearing flange 27 being mounted adjustable in position on a sleeve 28 placed for example around one end of the needle 21 and allowing, for example, example to an operator through an adjusting wheel to move the flange to adjust the setting of this spring.
  • Such a structure makes it possible to adapt the force generated on the weapon by the rammer, for example depending on the characteristics of the weapon, the depth of immersion and the speed of the underwater vehicle, etc. .
  • such a structure makes it possible to optimize the force seen by the weapon and in particular to reduce the maximum force seen by the latter, as well as the thrust law that makes it possible to ensure a more constant acceleration of the force. the weapon by optimizing its dynamics during its ejection.
  • such a structure also makes it possible to obtain a speed gain of the weapon on ejection, while decreasing the phenomenon of cavitation observed at the base thereof during this launch.

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  • Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Braking Arrangements (AREA)
  • Lift Valve (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The system has a launching valve interposed between a pressurized fluid source and a rammer. The valve includes a valve body (5) in which a removable valve (6) is mounted during launching of a weapon by a control unit between a closing position and an opening position of the valve to supply pressurized fluid to the rammer. The removable valve is associated with a braking unit (8) including a fluidic speed reducer with two fluid chambers (9, 10) connected together by a diaphragm unit for controlling the fluid. The diaphragm unit is variable according to the position of the removable valve.

Description

La présente invention concerne un système d'alimentation en fluide sous pression d'un refouloir d'un tube de lancement d'une arme à partir d'un engin sous-marin.The present invention relates to a system for supplying pressurized fluid from a ramming machine to a launching tube of a weapon from an underwater vehicle.

Un tel tube est couramment appelé « tube lance-torpille » et peut être intégré dans un engin sous-marin tel qu'un sous-marin proprement dit, pour lancer des armes telles que par exemple des torpilles ou encore des missiles, etc...Such a tube is commonly called "torpedo tube" and can be integrated into an underwater vehicle such as a submarine itself, to launch weapons such as for example torpedoes or missiles, etc. .

Des drones peuvent également être lancés de cette façon en utilisant un tel tube.Drones can also be launched in this way using such a tube.

D'une façon générale, les systèmes d'alimentation pour ce type d'applications comportent une soupape de lancement interposée entre une source de fluide sous pression et le refouloir et cette soupape comporte alors un corps de soupape dans lequel est monté un clapet déplaçable lors du lancement de l'arme par des moyens de commande, entre une position de fermeture et une position d'ouverture de la soupape pour alimenter le refouloir en fluide sous pression.In general, the supply systems for this type of application comprise a launch valve interposed between a source of pressurized fluid and the collector and this valve then comprises a valve body in which is mounted a movable valve when launching the weapon by control means, between a closed position and an open position of the valve for supplying the pressurized pressurized fluid.

Ce clapet est également associé à des moyens de freinage de son déplacement d'ouverture, qui comportent un ralentisseur fluidique à deux chambres de fluide raccordées à travers des moyens à diaphragme de laminage de ce fluide.This valve is also associated with means for braking its opening displacement, which comprise a fluidic retarder with two fluid chambers connected through diaphragm means for rolling this fluid.

De tels systèmes sont par exemple utilisés pour assurer l'alimentation d'un refouloir pneumatique qui comporte alors un vérin pneumatique à plusieurs pistons télescopiques qui permettent de lancer des armes ayant des masses, des longueurs et des géométries différentes.Such systems are used, for example, to supply a pneumatic rammer which then comprises a pneumatic ram with several telescopic pistons which make it possible to launch weapons having masses, lengths and different geometries.

Cependant des armes de natures différentes peuvent être lancées par un tel tube et il a été constaté que pour certaines de celles-ci, l'effort appliqué à l'arme lors de l'éjection est trop important et la loi de poussée est mal adaptée et provoque en particulier l'apparition d'un important phénomène de cavitation au culot de l'arme, ce qui se traduit notamment par une perte de vitesse de celle-ci lors de son éjection.However weapons of different natures can be launched by such a tube and it has been found that for some of these, the force applied to the weapon during ejection is too important and the thrust law is poorly adapted and causes in particular the appearance of an important cavitation phenomenon at the base of the weapon, which results in particular in a loss of speed thereof during its ejection.

Le but de l'invention est donc de résoudre ces problèmes.The object of the invention is therefore to solve these problems.

A cet effet l'invention a pour objet un système d'alimentation en fluide sous pression d'un refouloir d'un tube de lancement d'une arme à partir d'un engin sous-marin, du type comportant une soupape de lancement interposée entre une source de fluide sous pression et le refouloir et comportant un corps de soupape dans lequel est monté un clapet déplaçable lors du lancement de l'arme par des moyens de commande, entre une position de fermeture et une position d'ouverture de la soupape pour alimenter le refouloir en fluide sous pression, ce clapet étant associé à des moyens de freinage de son déplacement d'ouverture comportant un ralentisseur fluidique à deux chambres de fluide raccordées à travers des moyens à diaphragme de laminage de ce fluide, caractérisé en ce que les moyens à diaphragme de laminage du fluide comportent des moyens à diaphragme variable selon la position du clapet.For this purpose, the subject of the invention is a system for supplying pressurized fluid to a ramming device of a launching tube of a weapon from an underwater vehicle, of the type comprising an interposed launching valve. between a source of pressurized fluid and the damper and comprising a valve body in which is mounted a movable valve when launching the weapon by control means, between a closed position and an open position of the valve for supplying the pressurized fluid exchanger, this valve being associated with means for braking its opening displacement comprising a fluidic retarder with two fluid chambers connected through means for diaphragm rolling of this fluid, characterized in the fluid rolling diaphragm means comprise variable diaphragm means according to the position of the valve.

Selon des modes particuliers de réalisation, l'invention peut comprendre l'une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou selon toutes les combinaisons techniquement possibles :

  • les moyens formant diaphragme variable comportent un corps de diaphragme à deux chambres séparées par un voile muni d'au moins un orifice de passage du fluide, dans lequel s'étend une tête d'un pointeau déplaçable sous l'action du fluide et donc en fonction de la position du clapet, à l'encontre de la sollicitation de moyens élastiques ;
  • la tête du pointeau définit avec le voile une section de passage du fluide variable selon la position du clapet ;
  • la tête du pointeau comporte au moins une rainure de profondeur croissante vers son extrémité libre définissant ainsi avec le voile une section de laminage variable du fluide selon la position de cette tête et donc du pointeau ;
  • les moyens élastiques de sollicitation du pointeau sont associés à des moyens de réglage de leur tarage ;
  • les moyens élastiques comportent un ressort hélicoïdal dont une extrémité est associée à une surface d'appui du pointeau et dont l'autre extrémité est associée aux moyens de réglage du tarage de ce ressort ;
  • les moyens de tarage comprennent un flasque d'appui pour l'extrémité correspondante du ressort, ce flasque étant associé à un organe de réglage en position, permettant d'assurer le réglage du tarage du ressort ;
  • le fluide sous pression d'alimentation du refouloir est un gaz et le fluide du ralentisseur est un liquide ;
  • le fluide sous pression d'alimentation du refouloir est de l'air et le fluide du ralentisseur est de l'huile ; et
  • le fluide sous pression d'alimentation du refouloir est contenu dans des moyens formant bouteille de gaz sous pression.
According to particular embodiments, the invention may comprise one or more of the following characteristics, taken in isolation or in any technically possible combination:
  • the variable diaphragm means comprise a diaphragm body with two chambers separated by a web provided with at least one fluid passage orifice, in which extends a head of a needle displaceable under the action of the fluid and thus in function of the position of the valve, against the stress of elastic means;
  • the head of the needle defines with the veil a variable fluid passage section according to the position of the valve;
  • the head of the needle comprises at least one groove of increasing depth towards its free end thus defining with the web a variable rolling section of the fluid according to the position of this head and therefore the needle;
  • the elastic means for biasing the needle are associated with means for adjusting their calibration;
  • the elastic means comprise a helical spring whose one end is associated with a bearing surface of the needle and whose other end is associated with the adjustment means of the setting of this spring;
  • the setting means comprise a support flange for the corresponding end of the spring, this flange being associated with a setting member in position, to ensure the adjustment of the setting of the spring;
  • the pressurized feed fluid of the rammer is a gas and the retarder fluid is a liquid;
  • the pressurized supply fluid of the presser is air and the retarder fluid is oil; and
  • the pressurized feed fluid of the rammer is contained in pressurized gas cylinder means.

L'invention sera mieux comprise à l'aide de la description qui va suivre donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, sur lesquels :

  • la figure 1 représente une vue générale schématique d'un système d'alimentation en fluide sous pression d'un refouloir de l'état de la technique,
  • la figure 2 représente une vue en coupe schématique de moyens à diaphragme de laminage de fluide entrant dans la constitution d'un système d'alimentation selon l'invention, et
  • la figure 3 représente une vue en coupe d'un exemple de réalisation de ces moyens à diaphragme.
The invention will be better understood with the aid of the following description given solely by way of example and with reference to the appended drawings, in which:
  • the figure 1 represents a schematic overview of a system for supplying pressurized fluid to a collector of the state of the art,
  • the figure 2 represents a schematic sectional view of fluid rolling diaphragm means forming part of a feed system according to the invention, and
  • the figure 3 represents a sectional view of an exemplary embodiment of these diaphragm means.

On a en effet illustré sur ces figures et en particulier sur la figure 1, un système d'alimentation en fluide sous pression d'un refouloir d'un tube de lancement d'une arme à partir d'un engin sous-marin.We have indeed illustrated in these figures and in particular on the figure 1 , a system for supplying pressurized fluid from a rammer of a launch tube of a weapon from an underwater vehicle.

Le refouloir est désigné de façon générale par la référence 1 sur la figure 1 et est par exemple formé par un refouloir pneumatique à plusieurs pistons télescopiques permettant d'éjecter l'arme du tube.The rammer is generally designated by reference 1 on the figure 1 and is for example formed by a pneumatic ram with several telescopic pistons for ejecting the weapon from the tube.

Des refouloirs de ce type à cinq pistons sont par exemple connus.For example, five-piston presses of this kind are known.

Le système d'alimentation de ce refouloir est quant à lui désigné par la référence générale 2 de façon générale.The supply system of this damper is referred to by the general reference 2 in general.

En fait ce système d'alimentation comporte une soupape de lancement désignée par la référence générale 3, interposée entre une source de fluide sous pression désignée par la référence générale 4 et le refouloir 1.In fact this feed system comprises a launch valve designated by the general reference 3, interposed between a source of pressurized fluid designated by the general reference 4 and the collector 1.

Dans l'exemple décrit, la source de fluide sous pression est par exemple formée par des moyens formant bouteille de gaz sous pression tels que par exemple des bouteilles d'air comprimé.In the example described, the source of pressurized fluid is for example formed by pressurized gas bottle means such as for example compressed air bottles.

La soupape de lancement 3 comporte quant à elle un corps de soupape désigné par la référence générale 5, dans lequel est monté un clapet désigné par la référence générale 6, déplaçable lors du lancement de l'arme par des moyens de commande désignés par la référence générale 7, entre une position de fermeture et une position d'ouverture de la soupape pour alimenter le refouloir en fluide sous pression.The throwing valve 3 comprises a valve body designated by the general reference 5, in which is mounted a valve designated by the general reference 6, movable at the launch of the weapon by control means designated by the reference 7, between a closed position and an open position of the valve for supplying the pressurized fluid with the pressurized fluid.

Cette soupape et plus particulièrement le clapet de celle-ci, sont également associés à des moyens de freinage du déplacement d'ouverture de ce clapet, ces moyens étant désignés par la référence générale 8 sur cette figure et comportant par exemple un ralentisseur fluidique à deux chambres de fluide raccordées à travers des moyens à diaphragme de laminage de ce fluide. Le fluide est par exemple de l'huile.This valve and more particularly the valve thereof, are also associated with means for braking the opening movement of this valve, these means being designated by the general reference 8 in this figure and comprising for example a fluidic retarder to two fluid chambers connected through diaphragm means for rolling this fluid. The fluid is for example oil.

Dans l'exemple décrit, les deux chambres du ralentisseur sont désignées par les références générales 9 et 10, et les moyens à diaphragme de laminage de ce fluide sont désignés par la référence générale 11.In the example described, the two chambers of the retarder are designated by the general references 9 and 10, and the rolling diaphragm means of this fluid are designated by the general reference 11.

Un organe élastique tel que par exemple un ressort désigné par la référence générale 12, peut également être disposé dans l'une des chambres du ralentisseur, telle que la chambre 9.An elastic member such as for example a spring designated by the general reference 12, can also be arranged in one of the chambers of the retarder, such as the chamber 9.

Dans les systèmes de l'état de la technique tels qu'illustrés sur cette figure 1, ces moyens à diaphragme de laminage comportent une portion de section réduite de passage du fluide entre les deux chambres du ralentisseur, cette partie de section réduite étant désignée par la référence générale 13.In the systems of the state of the art as illustrated in this figure 1 these rolling diaphragm means comprise a reduced cross-section portion of passage fluid between the two chambers of the retarder, this portion of reduced section being designated by the general reference 13.

Le fonctionnement de ce système d'alimentation est alors le suivant.The operation of this power system is then as follows.

A l'état initial, l'air comprimé des moyens formant bouteille d'air de lancement maintient le clapet de soupape 6 en position fermée. Après une demande de lancement d'une arme, un opérateur actionne par exemple les moyens de commande 7 pour dériver une partie de l'air comprimé dans une chambre d'actionnement 14 du clapet 6, ce qui amène alors celui-ci à se déplacer vers une position d'ouverture. Ce déplacement se fait à l'encontre de la sollicitation élastique du ressort 12 et provoque un refoulement du fluide contenu dans la première chambre 9 du ralentisseur à travers les moyens 11 1 à diaphragme de laminage du fluide et la portion de section réduite 13 de ceux-ci, en direction de la seconde chambre 10 du ralentisseur.In the initial state, the compressed air of the launch air bottle means holds the valve flap 6 in the closed position. After a request to launch a weapon, an operator actuates for example the control means 7 to divert a portion of the compressed air into an actuating chamber 14 of the valve 6, which then causes the latter to move towards an open position. This displacement is done against the elastic biasing of the spring 12 and causes a discharge of the fluid contained in the first chamber 9 of the retarder through the means 11 1 to diaphragm rolling of the fluid and the portion of reduced section 13 of those in the direction of the second chamber 10 of the retarder.

Une telle structure permet ainsi de ralentir le mouvement d'ouverture de la soupape afin de limiter l'effort de poussée vu au culot de l'arme.Such a structure thus makes it possible to slow down the opening movement of the valve in order to limit the thrust force seen at the base of the weapon.

Cependant une telle structure présente des inconvénients qui ont été décrits précédemment à propos notamment de l'adaptation de l'effort au culot de l'arme et de l'apparition du phénomène de cavitation.However, such a structure has drawbacks that have been previously described, particularly with regard to the adaptation of the force to the base of the weapon and the appearance of the cavitation phenomenon.

Pour résoudre ces problèmes et comme cela est illustré sur les figures 2 et 3, dans le système d'alimentation selon l'invention, les moyens à diaphragme de laminage de fluide comportent des moyens à diaphragme variable selon la position du clapet de soupape.To solve these problems and as illustrated on the figures 2 and 3 in the feed system according to the invention, the fluid rolling diaphragm means comprise variable diaphragm means according to the position of the valve plug.

On reconnaît sur la figure 2, le corps de la soupape de lancement 5, le clapet 6, la chambre d'actionnement 14 du clapet, les moyens 8 de freinage du déplacement d'ouverture de ce clapet, les chambres fluidiques 9 et 10 de ceux-ci, les moyens élastiques 12 et des moyens à diaphragme de laminage de ce fluide qui, sur ces figures 2 et 3, sont désignés par la référence générale 15.We recognize on the figure 2 , the body of the throwing valve 5, the valve 6, the actuating chamber 14 of the valve, the means 8 for braking the opening displacement of this valve, the fluidic chambers 9 and 10 thereof, the means elastics 12 and diaphragm rolling means of this fluid which, on these figures 2 and 3 , are designated by the general reference 15.

En fait et comme cela est illustré, ces moyens à diaphragme de laminage de fluide comprennent des moyens à diaphragme variable selon la position du clapet.In fact, and as illustrated, these fluid rolling diaphragm means comprise variable diaphragm means depending on the position of the valve.

Ils comportent alors un corps de diaphragme désigné par la référence générale 16, à deux chambres respectivement 17 et 18, séparées par un voile 19, muni d'au moins un orifice de passage du fluide, cet orifice étant désigné par la référence générale 20.They then comprise a diaphragm body designated by the general reference 16, with two chambers respectively 17 and 18, separated by a web 19, provided with at least one fluid passage orifice, this orifice being designated by the general reference 20.

Un pointeau désigné par la référence générale 21 est monté déplaçable dans ce corps de diaphragme et présente une tête de pointeau désignée par la référence générale 22, adaptée pour s'étendre dans l'orifice 20 de passage du fluide ménagé dans le voile 19 séparant les deux chambres 17 et 18 du corps de diaphragme.A needle designated by the general reference 21 is movably mounted in this diaphragm body and has a needle head designated by the general reference 22, adapted to extend into the fluid passage opening 20 formed in the web 19 separating them. two chambers 17 and 18 of the diaphragm body.

En fait et comme cela est illustré, ce pointeau 21 est monté déplaçable à coulissement dans le corps de diaphragme sous l'action du fluide lors du déplacement du clapet de soupape de lancement vers sa position d'ouverture, à l'encontre de la sollicitation de moyens élastiques constitués par exemple par un ressort hélicoïdal désigné par la référence générale 23.In fact and as illustrated, this needle 21 is slidably movable in the diaphragm body under the action of the fluid during the displacement of the throttle valve valve towards its open position, against the solicitation elastic means constituted for example by a helical spring designated by the general reference 23.

En fait et comme cela est illustré, la tête 22 du pointeau 21 définit avec le voile 19, une section de passage du fluide variable selon la position du clapet.In fact and as illustrated, the head 22 of the needle 21 defines with the web 19, a variable fluid passage section according to the position of the valve.

Dans l'exemple de réalisation illustré sur ces figures, la tête 22 du pointeau 21 comporte au moins une rainure désignée par la référence générale 24 sur la figure 3, de profondeur croissante vers l'extrémité libre de cette tête et définissant ainsi avec le voile 19 du corps de diaphragme, une section de laminage variable du fluide selon la position de cette tête et donc du pointeau.In the exemplary embodiment illustrated in these figures, the head 22 of the needle 21 comprises at least one groove designated by the general reference 24 on the figure 3 , of increasing depth towards the free end of this head and thus defining with the web 19 of the diaphragm body, a variable rolling section of the fluid according to the position of this head and therefore the needle.

On conçoit que ceci permet de contrôler l'effet du ralentisseur de déplacement du clapet de soupape selon la position de celui-ci.It is conceivable that this makes it possible to control the effect of the valve valve displacement retarder according to the position thereof.

De plus et comme cela est également illustré sur cette figure 3, les moyens élastiques de sollicitation du pointeau, c'est-à-dire le ressort 23, peuvent être associés à des moyens de réglage de leur tarage, ces moyens de réglage étant désignés par la référence générale 25.More and as this is also illustrated on this figure 3 , the resilient biasing means of the needle, that is to say the spring 23, may be associated with means for adjusting their calibration, these adjustment means being designated by the general reference 25.

Comme cela est illustré sur cette figure 3, le ressort 23 présente en effet une première extrémité adaptée pour coopérer avec une surface d'appui 26 du pointeau 21 et une seconde extrémité associée aux moyens 25 de réglage du tarage de celui-ci.As illustrated on this figure 3 , the spring 23 has in fact a first end adapted to cooperate with a bearing surface 26 of the needle 21 and a second end associated with the setting means 25 of the calibration thereof.

Ces moyens de réglage comprennent par exemple un flasque d'appui pour l'extrémité correspondante de ce ressort, ce flasque d'appui 27 étant monté réglable en position sur un manchon 28 placé par exemple autour d'une extrémité du pointeau 21 et permettant par exemple à un opérateur par l'intermédiaire d'une molette de réglage de déplacer ce flasque pour assurer le réglage du tarage de ce ressort.These adjustment means comprise, for example, a support flange for the corresponding end of this spring, this bearing flange 27 being mounted adjustable in position on a sleeve 28 placed for example around one end of the needle 21 and allowing, for example, example to an operator through an adjusting wheel to move the flange to adjust the setting of this spring.

Il va de soi bien entendu que d'autres modes de réalisation de ces moyens de tarage peuvent être envisagés.It goes without saying of course that other embodiments of these setting means can be envisaged.

Une telle structure permet d'adapter l'effort généré sur l'arme par le refouloir par exemple en fonction des caractéristiques de l'arme, de la profondeur d'immersion et de la vitesse de l'engin sous-marin, etc...Such a structure makes it possible to adapt the force generated on the weapon by the rammer, for example depending on the characteristics of the weapon, the depth of immersion and the speed of the underwater vehicle, etc. .

Ainsi par exemple une telle structure permet d'optimiser l'effort vu par l'arme et en particulier de réduire l'effort maximum vu par celle-ci, de même que la loi de poussée qui permet d'assurer une accélération plus constante de l'arme en optimisant sa dynamique lors de son éjection.Thus, for example, such a structure makes it possible to optimize the force seen by the weapon and in particular to reduce the maximum force seen by the latter, as well as the thrust law that makes it possible to ensure a more constant acceleration of the force. the weapon by optimizing its dynamics during its ejection.

Par ailleurs une telle structure permet également d'obtenir un gain de vitesse de l'arme à l'éjection, tout en diminuant le phénomène de cavitation observé au culot de celle-ci lors de ce lancement.Moreover, such a structure also makes it possible to obtain a speed gain of the weapon on ejection, while decreasing the phenomenon of cavitation observed at the base thereof during this launch.

Bien entendu d'autres modes de réalisation encore peuvent être envisagés.Of course other embodiments can be envisaged.

Claims (10)

Système d'alimentation en fluide sous pression d'un refouloir (1) d'un tube de lancement d'une arme à partir d'un engin sous-marin, du type comportant une soupape de lancement (3) interposée entre une source de fluide sous pression (4) et le refouloir (1) et comportant un corps de soupape (5) dans lequel est monté un clapet (6) déplaçable lors du lancement de l'arme par des moyens de commande (7), entre une position de fermeture et une position d'ouverture de la soupape pour alimenter le refouloir en fluide sous pression, ce clapet (6) étant associé à des moyens (8) de freinage de son déplacement d'ouverture comportant un ralentisseur fluidique à deux chambres de fluide (9, 10) raccordées à travers des moyens à diaphragme de laminage de ce fluide, caractérisé en ce que les moyens à diaphragme de laminage du fluide comportent des moyens (15) à diaphragme variable selon la position du clapet.System for supplying pressurized fluid to a ram (1) of a launching tube of a weapon from an underwater vehicle, of the type comprising a throwing valve (3) interposed between a source of fluid under pressure (4) and the damper (1) and having a valve body (5) in which is mounted a valve (6) movable at the launch of the weapon by control means (7), between a position closing and an open position of the valve for supplying the pressure medium with fluid under pressure, this valve (6) being associated with means (8) for braking its opening displacement comprising a fluidic retarder with two fluid chambers (9, 10) connected through rolling diaphragm means of said fluid, characterized in that the fluid rolling diaphragm means comprise means (15) with variable diaphragm according to the position of the valve. Système d'alimentation en fluide sous pression d'un refouloir selon la revendication 1, caractérisé en ce que les moyens (15) formant diaphragme variable comportent un corps de diaphragme (16) à deux chambres (17, 18) séparées par un voile (19) muni d'au moins un orifice (20) de passage du fluide, dans lequel s'étend une tête (22) d'un pointeau (21) déplaçable sous l'action du fluide et donc en fonction de la position du clapet, à l'encontre de la sollicitation de moyens élastiques (23).Pressurized fluid supply system of a rammer according to claim 1, characterized in that the variable diaphragm means (15) comprise a diaphragm body (16) with two chambers (17, 18) separated by a web ( 19) provided with at least one orifice (20) for the passage of the fluid, in which a head (22) of a needle (21) displaceable under the action of the fluid and thus depending on the position of the valve against the biasing of resilient means (23). Système d'alimentation en fluide sous pression d'un refouloir selon la revendication 2, caractérisé en ce que la tête (22) du pointeau (21) définit avec le voile (19) une section de passage du fluide variable selon la position du clapet.Pressurized fluid supply system of a rammer according to claim 2, characterized in that the head (22) of the needle (21) defines with the web (19) a variable fluid passage section according to the position of the valve . Système d'alimentation en fluide sous pression d'un refouloir selon la revendication 3, caractérisé en ce que la tête (22) du pointeau (21) comporte au moins une rainure (24) de profondeur croissante vers son extrémité libre définissant ainsi avec le voile (19) une section de laminage variable du fluide selon la position de cette tête et donc du pointeau.Pressurized fluid supply system of a rammer according to claim 3, characterized in that the head (22) of the needle (21) comprises at least one groove (24) of increasing depth towards its free end thus defining with the veil (19) a variable rolling section of the fluid according to the position of this head and therefore the needle. Système d'alimentation en fluide sous pression d'un refouloir selon la revendication 2, 3 ou 4, caractérisé en ce que les moyens élastiques (23) de sollicitation du pointeau (21) sont associés à des moyens (25) de réglage de leur tarage.Pressurized fluid supply system of a rammer according to claim 2, 3 or 4, characterized in that the elastic means (23) for biasing the needle (21) are associated with means (25) for adjusting their tare. Système d'alimentation en fluide sous pression d'un refouloir selon la revendication 5, caractérisé en ce que les moyens élastiques comportent un ressort hélicoïdal (23) dont une extrémité est associée à une surface d'appui (26) du pointeau (21) et dont l'autre extrémité est associée aux moyens (25) de réglage du tarage de ce ressort.Pressurized fluid supply system of a rammer according to claim 5, characterized in that the elastic means comprise a helical spring (23), one end of which is associated with a bearing surface (26) of the needle (21). and whose other end is associated with the means (25) for adjusting the setting of this spring. Système d'alimentation en fluide sous pression d'un refouloir selon la revendication 6, caractérisé en ce que les moyens de tarage comprennent un flasque d'appui (27) pour l'extrémité correspondante du ressort (23), ce flasque étant associé à un organe (28) de réglage en position, permettant d'assurer le réglage du tarage du ressort.Pressurized fluid supply system of a rammer according to claim 6, characterized in that the setting means comprise a bearing flange (27) for the corresponding end of the spring (23), this flange being associated with a member (28) for adjusting the position, for adjusting the setting of the spring. Système d'alimentation en fluide sous pression d'un refouloir selon l'une quelconque des revendications précédentes, caractérisé en ce que le fluide sous pression d'alimentation du refouloir (1) est un gaz et le fluide du ralentisseur (8) est un liquide.Pressurized fluid supply system of a rammer according to any one of the preceding claims, characterized in that the pressure medium for supplying the rammer (1) is a gas and the retarder fluid (8) is a liquid. Système d'alimentation en fluide sous pression d'un refouloir selon la revendication 8, caractérisé en ce que le fluide sous pression d'alimentation du refouloir est de l'air et le fluide du ralentisseur est de l'huile.Pressure fluid supply system of a rammer according to claim 8, characterized in that the pressurized fluid supply to the rammer is air and the retarder fluid is oil. Système d'alimentation en fluide sous pression d'un refouloir selon la revendication 8 ou 9, caractérisé en ce que le fluide sous pression d'alimentation du refouloir est contenu dans des moyens formant bouteille de gaz sous pression (4).Pressurized fluid supply system of a rammer according to claim 8 or 9, characterized in that the pressurized feed fluid of the rammer is contained in pressurized gas cylinder means (4).
EP11305003.3A 2010-01-08 2011-01-03 System for feeding with pressurised fluid an ejection piston of a launching tube of a weapon on a submarine Active EP2343491B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1050109A FR2955082B1 (en) 2010-01-08 2010-01-08 PRESSURIZED FLUID SUPPLY SYSTEM FOR DISCHARGING A LAUNCHING TUBE FROM A SUBMARINE ENGINE

Publications (2)

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EP2343491A1 true EP2343491A1 (en) 2011-07-13
EP2343491B1 EP2343491B1 (en) 2013-12-25

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ES (1) ES2444628T3 (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2657126A3 (en) * 2012-04-24 2013-12-18 ThyssenKrupp Marine Systems GmbH Submarine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3049055B1 (en) * 2016-03-21 2018-04-13 Dcns LAUNCHER TUBE COLUMN OF WATER FOR SHIP
FR3049053B1 (en) * 2016-03-21 2018-06-22 Dcns LAUNDRY TUBE FOR A SHIP
FR3049054B1 (en) * 2016-03-21 2018-04-13 Dcns LAUNCHER TUBE REFOULOIR FOR SHIP

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB367733A (en) * 1930-12-29 1932-02-25 & Chantiers De La Loire Sa Des Torpedo-launching apparatus, more particularly for fast-moving ships or scouts
US5165360A (en) * 1991-03-11 1992-11-24 The United States Of America As Represented By The Secretary Of The Navy Underwater rapid-fire ram pump
US5438945A (en) * 1994-07-27 1995-08-08 The United States Of America As Represented By The Secretary Of The Navy Slide valve assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB367733A (en) * 1930-12-29 1932-02-25 & Chantiers De La Loire Sa Des Torpedo-launching apparatus, more particularly for fast-moving ships or scouts
US5165360A (en) * 1991-03-11 1992-11-24 The United States Of America As Represented By The Secretary Of The Navy Underwater rapid-fire ram pump
US5438945A (en) * 1994-07-27 1995-08-08 The United States Of America As Represented By The Secretary Of The Navy Slide valve assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2657126A3 (en) * 2012-04-24 2013-12-18 ThyssenKrupp Marine Systems GmbH Submarine

Also Published As

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EP2343491B1 (en) 2013-12-25
FR2955082A1 (en) 2011-07-15
FR2955082B1 (en) 2012-03-23
ES2444628T3 (en) 2014-02-26

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