EP1228957A1 - Dispositif pneumatique flottant, notamment radeau pneumatique de survie, équipé de moyens de gonflage à venturi - Google Patents
Dispositif pneumatique flottant, notamment radeau pneumatique de survie, équipé de moyens de gonflage à venturi Download PDFInfo
- Publication number
- EP1228957A1 EP1228957A1 EP02290198A EP02290198A EP1228957A1 EP 1228957 A1 EP1228957 A1 EP 1228957A1 EP 02290198 A EP02290198 A EP 02290198A EP 02290198 A EP02290198 A EP 02290198A EP 1228957 A1 EP1228957 A1 EP 1228957A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inflation
- venturi
- pneumatic
- floating device
- pneumatic floating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
- B63C9/24—Arrangements of inflating valves or of controls thereof
Definitions
- the present invention relates in a way general of improvements made to the devices floating tires, and more particularly, although not exclusively, to those of these devices which have a large volume of swelling.
- Pneumatic devices are inflated from a source of pressurized gas, generally consisting of by one or more gas tanks or cylinders tablet embedded on or in the device when this one is autonomous.
- the invention therefore aims to improve the pneumatic type floating devices before power be swollen on the liquid surface so that the number of on-board bottles intended for this inflation can be significantly reduced in order to restrict the cost and weight of this material, but without it any affect on the speed of the inflation or device conditioning methods deflated and folded in a container, and without no more than this results in a significant increase in cost of the whole device.
- the invention provides a device floating tire that can be inflated on the liquid surface and which for this purpose comprises means of inflation including an on-board source of gas under pressure, which device, being arranged in accordance with the invention is characterized in that said means of inflation include a venturi powered by the source of gas under pressure and capable of causing entrainment of ambient air contributing to the inflation of the device and that said venturi inflation means, being mounted on a wall of said device, are protected by protective means covering them so as to authorize the free passage of ambient air while preventing liquid can penetrate significantly inside the device.
- inflation means were only used for devices terrestrial, or for floating devices inflated before launching.
- venturi inflation floating devices have never been used for venturi inflation floating devices to be inflated on the liquid surface (eg liferafts) in reason for the presence of the air passage associated with the venturi through which water (seawater, rain, spray) can penetrate widely into the interior of the device.
- the protection means include a cover extending over said venturi inflation means and resting on the adjacent surface of the device and that this cowling includes a substantially rigid frame supporting panels respectively defining mutually offset openings constituting at least a baffle between the outside and the inflation means venturi.
- the frame consists of inflated tubes under pressure, so that in the storage situation the deflated and folded device (for example in a storage container), the frame is itself deflated and folded in the same way as the rest of the device: it does not result in significant additional volume at integrate in the container and above all there is no rigid element liable to damage the fabric of the device.
- the panels are waterproof canvas panels stretched over the armature. In a simple way, we can then make the panels have a height which is less than that of the armature, the difference thus defining the above respective opening.
- the panels are at least partially opening to give access to the venturi, in particular to allow it to be closed at the end of inflation.
- the frame is substantially in the form of a dihedral, a parallelepiped rectangle or trunk of pyramid, which leads to simple shaped tubes which can easily inflate and especially which are simple to manufacture.
- the inflation is triggered while the device is partially or totally submerged (for example liferafts triggered from a ship which has just sunk quickly).
- the device is enclosed, deflated and folded, in a waterproof pocket suitable for being opened during inflation only when the pocket is on or above the liquid surface.
- the pneumatic device being folded in the waterproof pocket, this pocket, when inflation initialization, increases volume and flushes the water having penetrated inside the container and accelerates thus raising the assembly to the surface. during this phase, the venturi remains protected against any entry of water.
- the container then only opens after having reaches the surface and the waterproof pocket does not tear only after opening the container. When tearing the pocket, the means of protection of the venturis are already in place and functional.
- the flaccid fabric extends to or very little above the surface of the water so that the venturi, insufficiently raised, risk of allowing water to penetrate, all the more so that it is necessary to wait until the whole device has started to take shape, and therefore that a certain amount of time has passed for the venturi to be worn substantially above the surface of the water.
- the device includes an interior buffer chamber, permeable to gas, into which the means for venturi inflation, which allows the buffer chamber to inflates in the first place upon the entry into action of the means venturi inflators that are lifted above the liquid being able to function without introduction notable liquid.
- the room buffer is provided with at least one passage with restriction making said room communicate with the rest of the volume inside the device.
- FIG. 1 and 2 it is shown in a very simplified way, in section transverse, part of a pneumatic device floating R; it can for example be the float peripheral (consisting for example of two tubes 1 and 2 superimposed) of a liferaft whose other elements components are not shown.
- Each tube 1 and 2 is equipped with a venturi inflation 3, connected by a hose 5 to a source pressurized gas 4, consisting in practice of one or more several gas cylinders.
- Source 4 can be common to all the inflation members 3, or else the inflation 3 are associated with respective sources distinct.
- a protective structure 6 which covers the inflators 3 either individually or sets as illustrated in Figures 1 and 2.
- This protective structure is fixed on the flanges inflatable 1, 2 and forms a protective cage arranged to allow free passage to the ambient air (arrows A) which is sucked in by the venturi (s) while preventing liquid be trained.
- the structure of protection 6 is in the form of a cage or cover which rests on the tubes 1, 2 extending over the inflation means 3.
- This cowling includes a frame rigid 7 for example in the form of two frames rectangular arranged in a dihedral.
- Each frame of the frame 7 supports panels 8, 9 which define openings 10, 11 mutually offset so as to form at least one baffle between the outside and the inflators 3, baffle which does not hinder passage air (arrows A).
- the two frames of the rigid frame 7 have a appreciable thickness and the panels 8 and 9 are fixed on these frames on either side of them, the panels 8 being mounted towards the base of the frames (the corresponding openings 10 thus being situated towards the top of the frames), while the interior panels 9 are located towards the top of the frames (the openings corresponding 11 thus being located towards the bottom of the frames).
- Such an arrangement is sufficient to prevent a significant penetration of water into the inflation devices at venturi 3.
- the protective structure 6 can give rise to many embodiments. However it is desirable that it does not contain any rigid element which may damage, in particular tear, the fabric of the pneumatic device during deployment and inflation thereof.
- the rigid frame 7 consists of tubes inflated under pressure and the panels 8 and 9 are formed as panels of waterproof canvas stretched over the frames, as illustrated in Figures 1 and 2.
- the end walls 12 of the cowling thus formed are formed of a canvas or bib conforming to the outer contour of the tubes 1, 2 and secured to the two frames of the frame 7.
- a source of independent gas 13 ( Figure 1) and, the volume of gas necessary for inflation of the frame 6 being low, this auxiliary source 13 can consist of a small compressed gas cylinder which does not penalize, in cost and weight, the entire device.
- FIG. 1 a pipe 13 a (shown in dashes) connecting the head of the main bottle 4 to frame 6.
- the openings 10 and 11 forming a baffle are defined by a smaller size (height) of the canvas panels 8, 9 screws with respect to the corresponding dimension of the frame.
- other arrangements are possible (panels of canvas of the same format as the frame and fitted with drilling (s), for example).
- the exterior panels 8 are fixed on the corresponding frame of the frame rigid 7, removably (at least along their two lateral sides) using fixing means 14 waterproof and easy to handle (e.g. "Velcro" hooks, zipper, ).
- fixing means 14 waterproof and easy to handle (e.g. "Velcro" hooks, zipper, ).
- Figure 3 which shows the rollover for face, lifting the outer panels 8 allows to have access to the venturi inflators 3 especially to close (lock) these once the inflation completed.
- each outer panel 8 can be provided with a flap 15 releasing a window 16 offering close access to the inflation devices 3.
- Figure 4 is illustrated a variant of embodiment according to which the rigid reinforcement 6 is no longer in the form of a dihedral as shown in Figures 1 to 3, but in rectangular parallelepiped shape with two frames substantially parallel sides 17 joined by a frame front 18.
- the air flow is illustrated by arrows A.
- the rigid frame 6 is shaped in a pyramid trunk with the two side frames 17 converge towards each other.
- the exterior panels 19 extend only along the side frames 17, while that the inner panel 21 extends over the entire dimension of the front frame 18 by returning to the side frames 17 partially facing the exterior panels 19.
- the device pneumatic can be enclosed in a protective shell or container. This is particularly the case with rafts survival tires.
- the tightness of containers is not perfect. As a result, water can enter the container, especially when it is thrown into the water and floats for a while before the inflation of the raft is controlled, or even during the rapid sinking of a ship during which the raft is trained underwater before being released by a system hydrostatic triggered at a predetermined depth. Under these conditions, the penetration of water into the container may result in penetration of water in the raft, through the inflators to venturi.
- the deflated raft R is folded, for example so as to wrap the source 23 gas under pressure necessary for inflation, this being connected by at least one pipe 5 to at least one member venturi inflation (not visible).
- the set is enclosed in a waterproof pocket 24, which in turn is enclosed in container 25.
- a halyard 26 of triggering of the striker of the source 23 crosses the container 25 and tightly the pocket 24. It can also be connected directly to the triggering of the source 23 striker if it crosses so waterproof the pocket 24.
- the pocket 24 tears under the push of the raft during expansion.
- the inflators are hoisted above the level of water so as to be sure that water cannot penetrate, through the venturis, into the device tire during inflation.
- a buffer chamber 27 is therefore used relatively small volume into which the organ opens inflation 3, said buffer chamber 27 communicating with the rest of the tube 1, 2 by a braking restriction gas flow.
- the realization of the buffer chamber 27 can give place in various variants.
- the chamber buffer 27 can be constituted by a closed enclosure 28 inserted inside the tube (1 for example) and in which opens the venturi inflator 3 connected by a hose 5 to the gas cylinder under pressure 23.
- the enclosure 28 has an end wall 29 which is provided with 30 calibrated holes providing a braked flow gas from chamber 27 to the rest of the rod 1.
- the other end wall 31 can be fitted in the same way as the wall 29 and / or can, as illustrated, be equipped with a pressure relief valve 32 for safety.
- FIG. 9B is illustrated a variant of similar to that of FIG. 9A, except that the chamber 27 is defined by a section of the rod 1 itself which is delimited by two transverse partitions 29 and 31 secured to the wall of the flange 1 and equipped as described above with reference to FIG. 9A.
- the braking of the gas flow can be provided by any suitable means, such as, in addition to the aforementioned calibrated holes, the only pressure relief valve, a porous fabric, a system of baffles, etc.
- FIG. 9C an arrangement with multiple compartments delimited by successive partitions 33 a , 33 b , 33 c , ... provided with calibrated holes 34 a , 34 b , 34 c , ... respectively of increasing total section.
- FIG. 9C an arrangement with partitions secured to the flange 1 is shown and on the right-hand side of FIG. 9C, an arrangement with attached enclosure 28 and provided with a plurality of successive walls is shown.
- the transverse partitions integral with the flange can have any desired shape (spherical, frustoconical cap, ...), and similarly the enclosure 28 introduced inside the tube 1 can have any desired shape (cylindrical, biconical, spherical, ).
- the arrangements according to the invention find a preferred application, although not exclusive, in inflatable liferafts, especially in large-capacity liferafts, that is, capable of carry a large number of people (for example 100 to 150 people) and to do this having large dimensions and therefore a large volume of swelling.
- FIGS. 10A at 10C illustrate three stages of the initial phase of deployment of a liferaft equipped in accordance with the invention.
- FIG. 10A the container 25 containing the raft has been thrown and floats on the surface.
- the arrangement can be that indicated above opposite of Figure 8 and illustrated on the latter.
- the amplitude of the waterproof pocket 24 and the elongation coefficient of its constituent material are such that, under the thrust of the raft at the start of inflation, the pocket defines a large volume tightly protected from water.
- the buffer chambers 27 which begin to inflate, before the gas propagates in the rest of the tubes.
- the protective structure 6 is inflated and in place to protect the venturi inflation members 3: the air sucked in by the venturis is thus protected from any contact with water.
- the half-shells 25 a , 25 b of the container float on the water.
- the half-hulls 25 a , 25 b can sink rapidly and the buoyancy of the structure R is procured by the beginning of the swelling inside the waterproof bag bringing the structure R to the surface.
- the torn pocket 24 gradually releases the still uninflated part of the raft, which then completes inflate entirely.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Emergency Lowering Means (AREA)
- Air Bags (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
- Tents Or Canopies (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Nozzles (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Catching Or Destruction (AREA)
Abstract
Description
- la figure 1 est une vue en coupe transversale d'une partie d'un dispositif pneumatique flottant agencé conformément à l'invention ;
- la figure 2 est une vue en perspective de côté de la partie dudit dispositif illustrée à la figure 1 ;
- la figure 3 est une vue de face du dispositif des figures 1 et 2, montrant une variante de réalisation ;
- les figures 4 à 7 sont des vues schématiques partielles en coupe transversale illustrant diverses variantes de réalisation ;
- la figure 8 est une vue schématique en coupe d'un mode de mise en oeuvre spécifique d'une disposition de l'invention, illustrée dans le cas d'un radeau pneumatique de survie ;
- les figures 9A à 9C sont des vues schématiques partielles, en coupe, illustrant diverses variantes d'une autre disposition de l'invention ; et
- les figures 10A à 10C illustrent respectivement trois étapes de la phase initiale de déploiement d'un radeau de survie équipé conformément à l'invention.
Claims (12)
- Dispositif pneumatique flottant (R) devant pouvoir être gonflé sur la surface liquide et qui à cet effet comporte des moyens de gonflage incluant une source embarquée de gaz sous pression (4),
caractérisé en ce que les moyens de gonflage (3) comprennent un venturi alimenté par la source de gaz sous pression (4) et propre à provoquer un entraínement d'air ambiant contribuant au gonflage du dispositif,
et en ce que lesdits moyens de gonflage à venturi (3), étant montés sur une paroi dudit dispositif, sont protégés par des moyens de protection (6, 8, 9) les recouvrant de manière à autoriser le libre passage de l'air ambiant tout en empêchant que du liquide puisse pénétrer notablement à l'intérieur du dispositif. - Dispositif pneumatique flottant selon la revendication 1, caractérisé en ce que les moyens de protection (6, 8, 9) comprennent un capotage s'étendant par-dessus lesdits moyens de gonflage à venturi et reposant sur la surface adjacente du dispositif, et en ce que ce capotage comprend une armature sensiblement rigide (6) supportant des panneaux (8, 9) définissant respectivement des ouvertures (10, 11) mutuellement décalées et constituant au moins une chicane entre l'extérieur et les moyens de gonflage à venturi.
- Dispositif pneumatique flottant selon la revendication 2, caractérisé en ce que l'armature (6) est constituée de boudins gonflés sous pression (7).
- Dispositif pneumatique flottant selon la revendication 2 ou 3, caractérisé en ce que les panneaux (8, 9) sont des panneaux de toile étanche tendus sur l'armature.
- Dispositif pneumatique flottant selon l'une quelconque des revendications 2 à 4, caractérisé en ce que les panneaux (8, 9) ont une de leur dimension qui est inférieure à celle correspondante de l'armature, définissant ainsi la susdite ouverture respective (10, 11).
- Dispositif pneumatique flottant selon l'une quelconque des revendications 2 à 5, caractérisé en ce que les panneaux (8, 9) sont au moins partiellement ouvrants (14) pour donner accès au venturi, notamment pour permettre son obturation en fin de gonflage.
- Dispositif pneumatique flottant selon l'une quelconque des revendications 2 à 6, caractérisé en ce que l'armature (6) est sensiblement en forme de dièdre, de parallélépipède rectangle ou de tronc de pyramide.
- Dispositif pneumatique flottant selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est enfermé, à l'état dégonflé et plié, dans une poche étanche (24) propre à être ouverte lors du gonflage seulement lorsque la poche est à la surface liquide.
- Dispositif pneumatique flottant selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte une chambre tampon (27) intérieure, perméable au gaz, dans laquelle débouchent les moyens de gonflage à venturi (3),
ce grâce à quoi la chambre tampon (27) se gonfle en premier lieu dès l'entrée en action des moyens de gonflage à venturi (3) qui sont ainsi soulevés au-dessus du liquide en étant propres à fonctionner sans introduction notable de liquide. - Dispositif pneumatique flottant selon la revendication 9, caractérisé en ce que la chambre tampon (27) est munie d'au moins un passage avec restriction (30) faisant communiquer ladite chambre avec le reste du volume intérieur du dispositif.
- Radeau de survie pneumatique, caractérisé en ce qu'il est constitué selon l'une quelconque des revendications précédentes.
- Radeau de survie selon la revendication 11, caractérisé en ce qu'il s'agit d'un radeau de grande dimension et de grande capacité.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0101582 | 2001-02-06 | ||
FR0101582A FR2820394B1 (fr) | 2001-02-06 | 2001-02-06 | Dispositif pneumatique flottant, notamment radeau pneumatique de survie, equipe de moyens de gonflage a venturi |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1228957A1 true EP1228957A1 (fr) | 2002-08-07 |
EP1228957B1 EP1228957B1 (fr) | 2006-07-19 |
Family
ID=8859675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02290198A Expired - Lifetime EP1228957B1 (fr) | 2001-02-06 | 2002-01-29 | Dispositif pneumatique flottant, notamment radeau pneumatique de survie, équipé de moyens de gonflage à venturi |
Country Status (9)
Country | Link |
---|---|
US (1) | US6494756B2 (fr) |
EP (1) | EP1228957B1 (fr) |
AT (1) | ATE333407T1 (fr) |
AU (1) | AU782296B2 (fr) |
CA (1) | CA2370052C (fr) |
DE (1) | DE60213145T2 (fr) |
DK (1) | DK1228957T3 (fr) |
ES (1) | ES2269623T3 (fr) |
FR (1) | FR2820394B1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003223455A1 (en) * | 2002-05-05 | 2003-11-17 | William L. Courtney | Variable-displacement variable-ballast life raft inflated and maintained by a manual pneumatic and or hydraulic lever-amplified torque pump through a range of dedicated fittaments |
US7018257B2 (en) * | 2003-05-13 | 2006-03-28 | Courtney William L | Volume amplified compressed gas life jacket and life raft inflator |
EP1877325B1 (fr) * | 2005-03-12 | 2009-09-30 | Sealed Air Corporation (US) | Récipients gonflables |
US9944368B1 (en) * | 2008-06-10 | 2018-04-17 | Quick Raft, LLC. | Inflatable life raft assembly |
US7878141B2 (en) * | 2009-01-21 | 2011-02-01 | Backcountry Access, Inc. | Airbag system for use in an avalanche |
US8978693B2 (en) | 2013-01-28 | 2015-03-17 | Windcatcher Technology LLC | Inflation valve allowing for rapid inflation and deflation of an inflatable object |
US9573671B1 (en) * | 2013-12-31 | 2017-02-21 | X Development Llc | Fabric diffuser for high flowrate inflation |
RU189561U1 (ru) * | 2017-08-16 | 2019-05-28 | Василий Сергеевич Чинаев | Надувной баллон для рыбацких саней-волокуш |
US10661865B2 (en) * | 2018-07-30 | 2020-05-26 | Goodrich Corporation | Inline aspirator for inflatable assemblies |
US11767088B1 (en) * | 2018-11-19 | 2023-09-26 | Air Cruisers Company, LLC | Water management systems for preventing water ingestion in electrically powered inflation systems |
WO2020163423A1 (fr) | 2019-02-06 | 2020-08-13 | Boost Ideas, Llc | Vêtement de sécurité nautique, et dispositifs et procédés associés |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3158314A (en) * | 1962-02-21 | 1964-11-24 | Specialties Dev Corp | Inalting devices for inflatable objects |
US3684404A (en) * | 1971-03-16 | 1972-08-15 | Rocket Research Corp | Inflating apparatus |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3685066A (en) * | 1971-03-10 | 1972-08-22 | David V Edwards | Liferaft inflation system |
US4355987A (en) * | 1980-10-15 | 1982-10-26 | The Garrett Corporation | Life raft inflation system |
US5284453A (en) * | 1992-02-05 | 1994-02-08 | Kun Steve I | Rescue package composed of a life raft connected to a canister of materials to inflate the raft |
US6080027A (en) * | 1998-10-19 | 2000-06-27 | Rodemann; Will | Flotation device |
-
2001
- 2001-02-06 FR FR0101582A patent/FR2820394B1/fr not_active Expired - Lifetime
-
2002
- 2002-01-29 EP EP02290198A patent/EP1228957B1/fr not_active Expired - Lifetime
- 2002-01-29 ES ES02290198T patent/ES2269623T3/es not_active Expired - Lifetime
- 2002-01-29 AT AT02290198T patent/ATE333407T1/de not_active IP Right Cessation
- 2002-01-29 DK DK02290198T patent/DK1228957T3/da active
- 2002-01-29 DE DE60213145T patent/DE60213145T2/de not_active Expired - Lifetime
- 2002-02-01 CA CA2370052A patent/CA2370052C/fr not_active Expired - Lifetime
- 2002-02-04 US US10/067,254 patent/US6494756B2/en not_active Expired - Lifetime
- 2002-02-05 AU AU15423/02A patent/AU782296B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3158314A (en) * | 1962-02-21 | 1964-11-24 | Specialties Dev Corp | Inalting devices for inflatable objects |
US3684404A (en) * | 1971-03-16 | 1972-08-15 | Rocket Research Corp | Inflating apparatus |
Also Published As
Publication number | Publication date |
---|---|
EP1228957B1 (fr) | 2006-07-19 |
AU782296B2 (en) | 2005-07-14 |
FR2820394B1 (fr) | 2003-04-18 |
DE60213145D1 (de) | 2006-08-31 |
ATE333407T1 (de) | 2006-08-15 |
DK1228957T3 (da) | 2006-11-13 |
CA2370052A1 (fr) | 2002-08-06 |
FR2820394A1 (fr) | 2002-08-09 |
US6494756B2 (en) | 2002-12-17 |
CA2370052C (fr) | 2010-03-30 |
ES2269623T3 (es) | 2007-04-01 |
DE60213145T2 (de) | 2007-07-12 |
US20020106949A1 (en) | 2002-08-08 |
AU1542302A (en) | 2002-08-08 |
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