EP2285454B1 - Dispositif et procédé d'éjection pulsée de fluide - Google Patents
Dispositif et procédé d'éjection pulsée de fluide Download PDFInfo
- Publication number
- EP2285454B1 EP2285454B1 EP09757520.3A EP09757520A EP2285454B1 EP 2285454 B1 EP2285454 B1 EP 2285454B1 EP 09757520 A EP09757520 A EP 09757520A EP 2285454 B1 EP2285454 B1 EP 2285454B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- discharge
- medium
- nozzle element
- membrane
- nozzle
- 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.)
- Not-in-force
Links
- 238000000034 method Methods 0.000 title claims description 25
- 239000012528 membrane Substances 0.000 claims description 43
- 238000013016 damping Methods 0.000 claims description 24
- 239000003380 propellant Substances 0.000 claims description 8
- 210000004379 membrane Anatomy 0.000 description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 30
- 239000007789 gas Substances 0.000 description 17
- 238000009826 distribution Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 229940090411 ifex Drugs 0.000 description 6
- HOMGKSMUEGBAAB-UHFFFAOYSA-N ifosfamide Chemical compound ClCCNP1(=O)OCCCN1CCCl HOMGKSMUEGBAAB-UHFFFAOYSA-N 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
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- 238000000889 atomisation Methods 0.000 description 4
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- 231100000021 irritant Toxicity 0.000 description 2
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- 238000003892 spreading Methods 0.000 description 2
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- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 241000219198 Brassica Species 0.000 description 1
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- 235000003343 Brassica rupestris Nutrition 0.000 description 1
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- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002303 anti-venom Effects 0.000 description 1
- QKSKPIVNLNLAAV-UHFFFAOYSA-N bis(2-chloroethyl) sulfide Chemical compound ClCCSCCCl QKSKPIVNLNLAAV-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 238000001784 detoxification Methods 0.000 description 1
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- 230000006870 function Effects 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
- B05B1/323—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening the valve member being actuated by the pressure of the fluid to be sprayed
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
Definitions
- the present invention relates to an apparatus for pulse ejection of medium, comprising a medium ejecting pipe from which medium can be expelled in an ejection direction by a propellant through an ejection end of the ejection pipe. Furthermore, the present invention relates to a method for pulse ejection of medium from an ejection tube of such a device for pulse ejection of medium.
- WO 00/55019 A1 discloses a spray device for a windshield washer and starts from a spray device for a windshield washer with a spray nozzle, which has a nozzle bore, is mounted in a nozzle housing with a water connection and has a device that prevents backflow and uncontrolled leakage of water spray. It is proposed that the spray nozzle is held axially movably in the nozzle housing and is acted upon by the water pressure during the injection process at one end facing the water connection, while it rests with its other end on a closure member which sealingly covers the nozzle bore until it by the axial displacement the spray nozzle is brought into an open position and the nozzle bore releases.
- DE 28 17 102 A1 discloses a connector connected to a plastic cannula and a vascular catheter having a tubular and / or conical portion for sealing connection to infusion needles and / or tubes provided with connecting cones, the connector being provided with a radial passage for the passage, in which a shutting-off disc made of elastomeric material, is held with a central slot.
- WO 01/83032 A1 discloses an extinguisher with a pressurized gas generator for controlling far and upcoming explosions, which has two bursting membranes with Sollbruckstellen in the closure of the extinguishing agent container.
- WO 01/74452 A2 discloses a method for suppressing starting explosions, especially in containers or rooms with explosive dusts or gases, with a gas generator whose compressed gas after reaching a maximum pressure expels the extinguishing agent as a unit from the container and then distributed as extinguishing dust cloud space laterally and forward
- WO 01/07117 A2 relates to an extinguisher with a pressure gas generator for fighting fire and starting explosions, which at least one bursting membrane with Has predetermined breaking point for closure of the extinguishing agent container.
- the bursting membrane contains in its center a flat surface or a depression, which cause the predetermined breaking point opens at the same time on its entire circumference in order to obtain a rotationally symmetrical extinguishing agent outlet.
- US 2003/189067 A1 discloses a self-cleaning retention valve with shape memory with various compositions and material flow distributions for example, a container with flexible walls for products such as ketchup or mustard.
- Devices and methods for pulse ejection of medium are, for example, in WO 90/07373 A1 or EP 0 689 857 A2 described.
- fire can be extinguished with relatively small amounts of extinguishing medium with these devices and methods, the extinguishing medium is finely atomized or distributed by the pulse output and mixed with air.
- the fine atomization or distribution of the medium for example in the case of water as the extinguishing medium in the form of formation of very fine water droplets in the micrometer range, the high extinguishing effect can be achieved.
- the fine distribution or - nebulization occurs substantially directly after a leak of the medium from the ejection tube.
- a beam width of approx. 4.5 m results at a distance of 20 m from the ejection tube.
- the extinguishing distance with the best efficiency is 10 to 40 m.
- a portable device from IFEX Technologies achieves a maximum shot length of 16 m with 0.25 to 1 l of water as the medium, also with 25 bar of propellant pressure (air).
- this object is achieved by a device for pulse ejection of medium as defined in claim 1.
- the membrane mentioned in claim 1 has a plurality of slits extending outwardly in a plane perpendicular to the ejection direction from the center of the membrane.
- the slots have a curvature. It has been found that with curved slots an additional improvement in reach and beam stability can be achieved. It is hereby assumed that a reason for this improvement could be that the ejected media jet will be understood to have a stabilizing twist due to the shape of the exit opening resulting from the curved slots.
- the object is achieved by a method for pulse ejection of medium from an ejection tube of a device for pulse ejection of medium as defined in claim 13.
- the invention is based on the insight that one of the limiting factors (and thus, for example, also the extinguishing distance) is that the distribution or nebulization essentially begins immediately after the ejection. On the other hand, it is precisely this distribution or nebulization, especially for the fire extinguishing performance of such devices and methods, which is decisive for the success. It has been found that with a device according to the invention or with a method according to the invention, a fine distribution or atomization can be achieved, which only occurs at a relatively greater distance from the ejection tube, thus increasing the range of the ejection of medium.
- the nozzle member moves during ejection of medium from a rest position to an ejection position, wherein the nozzle member pushes the elastic membrane to form an exit opening to some extent.
- the medium can now be provided with an irritant and used without it would be a nuisance or even danger in the area of the ejecting device itself. If, for example, gas mixed with GS gas were "closed off" by a conventional device, as a result of the direct onset of nebulization of the CS-gas-water mixture, the CS gas would also be discharged in the region of the ejecting device, which would be such Use with conventional devices is not impossible but impractical.
- the invention can therefore be used particularly advantageously in the area of the so-called "riot control", that is, for example, in the fight against disturbances in a crisis situation, and thus supplement on the one hand the conventional use of CS gas or the like and on the other hand the use of methods with a higher risk of injury (water cannon or even use of weapons) replace.
- a membrane for a device for pulse ejection of medium in particular for a device according to the invention, wherein the membrane is elastically deformable during an ejection of medium to form a passage for medium and wherein the membrane has a plurality of curved slots, the extending in a plane perpendicular to the ejection direction from the center of the membrane to the outside.
- the present invention further relates to a method for increasing the range of a pulse output of medium, comprising the steps of a first and a second pulse ejection of medium, each having a method according to claim 13, wherein the second pulse ejection with the first pulse -Emission is temporally and spatially coordinated such that the second pulse output to increase its range essentially follows the first pulse output.
- the nozzle element can be brought from the rest position into the ejection position when the medium is ejected by means of the medium.
- the nozzle element defines a nozzle interior through which medium can pass during the ejection, wherein the nozzle interior expands counter to the ejection direction.
- the medium is given a simple way to effect the movement of the nozzle member, without any disturbing vortexes or other irregularities in the flow path of the ejected medium would be caused.
- the nozzle element can be brought by means of a restoring force from the ejection position to the rest position, wherein the restoring force results from the deformation of the membrane.
- the membrane is elastic and the restoring force of the membrane occurring during the deformation is used or at least contributes to bringing the nozzle element back into the rest position.
- the ejection position and the rest position are selected such that only the restoring force of the membrane can cause the return movement of the nozzle member.
- the nozzle element deforms the membrane in such a way that the then acting restoring force no longer has a sufficient proportion of force along the ejection direction.
- the nozzle member is held against the restoring force of the diaphragm in the ejection mount by the continuous action of the ejected medium.
- a separate spring element or another return device for the nozzle element can be provided, with which a return to the rest position after the ejection of medium can be effected.
- it can be provided, in particular, to realize a selectively actuated feedback, in the event that an "automatic" feedback by the restoring force of the membrane is not sufficient.
- Another advantageous embodiment of the present invention has a arranged between the nozzle member and the ejection tube damping chamber, which communicates with at least when in rest position nozzle member with the interior of the ejection tube for receiving medium in combination.
- medium in the damping chamber from which it is pushed out in the caused by the ejection movement of the nozzle member, for example, provided by an abutment surface of the nozzle member openings, wherein by the size and number of openings in the Interaction with the properties of the medium a desired damping can be adjusted.
- the nozzle element has at least one feed opening and / or Zuzhouaussparung, is connected by the in the rest position of the nozzle interior with the Dampfungsraum for the passage of medium.
- the damping chamber can be easily and without additional effort with the interior of the nozzle member and thus connected to the interior of the ejection tube.
- the nozzle element has at least one damping opening, through which medium can pass from the damping chamber during a movement of the nozzle element from the rest position into the ejection position.
- the size and possibly the number of the damping opening (s) allows, in coordination with the material properties of the medium, a targeted adjustment of the damping properties. From another point of view, this does not result in an expulsion of the medium on the damping chamber, but a movement of a part of the nozzle member through the damping chamber, wherein to effect the damping of this movement, a resistance is presented.
- the nozzle member has a plurality of bores, which are arranged such that when an ejection of medium gas can be entrained from the environment through the holes. It has been found that the entrainment of gas from the environment, usually air, in the ejected jet also contributes to improved jet stability.
- the holes are identical to the above-mentioned feed openings, which results in a double advantageous function for these openings.
- Another advantageous embodiment of the present invention comprises a guide sleeve, by means of the nozzle element and ejection tube are coupled together and which is designed for a guide of the nozzle member.
- a guide sleeve which is advantageously formed in two parts for receiving the nozzle member, can be a complex. Adjustment or configuration of the ejection tube are dispensed with in terms of a guide of the nozzle member, wherein the ejection tube only has to be suitable for receiving the guide sleeve.
- the above-mentioned widening of the interior of the nozzle element against the ejection direction also continues in an expansion of the guide sleeve beyond the nozzle element.
- the device for establishing a variable pressure of a propellant for the pulse-like expulsion of medium is designed. It has been found that with different blowing agent pressures an influence on the Reihweite of the output of medium can be taken.
- the device is configured with at least two adjacent ejector tubes for at least two times timed pulse-like expelling of medium, wherein the second pulse ejection is substantially followed by the first pulse ejection.
- the device is designed to selectively release the nozzle element for a displaceability or to fix the nozzle element.
- an optional determination or mobility of the nozzle member can be selected between two different modes of pulse bursts.
- the medium is a liquid, wherein in many cases water is particularly suitable as a medium or as a main component (carrier) of the medium.
- water is particularly suitable as a medium or as a main component (carrier) of the medium.
- other liquids or liquid mixtures may also be provided according to the invention.
- a solid medium for example in the form of a sufficiently fine powder, can also be used.
- the propellant is advantageously gaseous, with air being particularly well suited as a propellant in view of its easy availability.
- gases or gas mixtures can be used.
- the invention can be realized either in a portable version, in a mobile version mounted on a vehicle or in a mounting installed on the floor or on a building, the actual invention being independent of the size design is.
- Fig. 1 schematically shows a sectional view of the discharge end portion of an embodiment of the device according to the invention with the nozzle member 9 in the rest position 9 '. This also represents the resting state of the device.
- Fig. 1 partially shown device comprises a discharge pipe 1 and is equipped with a diaphragm 6 and a nozzle member 9.
- the nozzle member 9 is slidably disposed in a guide sleeve and is of this guide sleeve between the rest position 9 'and the ejection position 9 "(see Fig. 2 ) guided.
- the guide sleeve comprising a guide bush 8 and a slide bush 10 is inserted in the discharge end portion of the ejection pipe 1.
- the device has an attachment 2, on which a muzzle flap 4 is attached via a tilting joint 3. This attachment 2 can also serve to connect two adjacently arranged exhaust pipes 1 with each other.
- This attachment 2 can also serve to connect two adjacently arranged exhaust pipes 1 with each other.
- the nozzle element 9, here also called slide nozzle body 9, is located flush with the front edge (left) behind the rubber membrane 6 in the rear end position (on the right in FIG Fig. 1 ), so that forms between the nozzle body 9 and guide sleeve with guide bushing 8 and slide bush 10 of the damping chamber A.
- the damping chamber runs in a circle around the entire nozzle body 9 around.
- the water chamber (in this example water is used as a medium) by a rubber seal 5 between the mouth flap 4 and the union nut 7, which holds the rubber membrane 6, sealed.
- the pressure required for sealing contact pressure of the mouth flap is applied via a tilting joint 3, which is rotatably mounted in the connecting plate 2, by a pneumatic cylinder, the flap in Direction of the pipe pulls.
- the water chamber is filled by a pump with water, wherein the first air still in the chamber escapes through a vent hole on the connection plate.
- the water rises to the sealing surface between the mouth flap 4 and union nut 7. When the water reaches this point, it flows on through the nozzle holes B in the damping chamber A and fills it completely.
- the nozzle element 9 is designed such that it is opposite to the ejection direction (see. Fig. 2 ) expands. This revaluation of the nozzle member 9 continues in the sliding bush 10. In the ejection direction, there is thus a taper both of the inner region 30 of the sliding bush and of the inner region 25 of the nozzle element. As a result of this taper results in a passage of medium during ejection a force on the nozzle member 9, with this is moved in the ejection direction to the ejection position, thus opening the membrane 6.
- FIG. 2 schematically shows a Fig. 1 Comparative sectional view of the ejection end portion of the embodiment with the nozzle member 9 in ejection position 9 ", with the orifice flap 4 opened
- the ejection direction 15 is indicated by an arrow in FIG Fig. 2 indicated.
- the shot is triggered only after opening the mouth flap by a limit switch on the pneumatic cylinder.
- the water contained in the water chamber is pushed out of the pipe at high pressure and corresponding speed forward, whereby the nozzle body pushes forward quickly and the rubber membrane.
- the water which is located in the damping chamber A, pressed over the damping holes C to the rear, so that the nozzle body only braked to the (left in the figure) flat surface Guide bush 8 strikes, bringing the in Fig. 2
- the excess water from the damping chamber A is returned to the water chamber via further boreholes located on the circumference of the sliding sleeve 10.
- the nozzle body slides back into its starting position 9 by the spring force of the rubber diaphragm 6 'and the mouth flap 4 is again closed pneumatically.
- the openings of the bores B which are opposite the inside of the nozzle element emerge, with which it becomes possible for the bores B to be flowed through by air from the environment.
- the medium passing through the nozzle element 9 during ejection can thus entrain air from the environment through these bores B, whereby additional stabilization of the ejected jet is achieved.
- Fig. 3 schematically shows a plan view of an embodiment of a membrane 6 of a device according to the invention with curved slots 35th
- the membrane 6 comprises in the in Fig. 3 shown preferred embodiment, a total of 6 slots, each emanating symmetrically from the center of the diaphragm 6 and are curved right-hand.
- the embodiment may consist of Fig. 3 also be described with three symmetrical slots that pass through the membrane 6, meet in the middle of the membrane 6 and thereby change their direction of curvature.
- Fig. 4 schematically shows a flowchart of an embodiment of the method according to the invention according to a first aspect.
- the ejection of medium starts in step 100 and results in movement of a nozzle member in the discharge end portion of an ejection pipe of a medium ejecting apparatus.
- the movement takes place in step 105 and in turn leads in step 110 to a deformation of the membrane to form a passage opening in the membrane.
- the deformation caused by the displacement of the nozzle element is superimposed, at least at the beginning of the ejection of medium, with a deformation caused by the ejected medium itself, wherein in a preferred embodiment, during the later course of the ejection, the deformation is effected substantially only by the nozzle element which in turn is held by the exiting medium against the restoring force of the membrane in the ejection position.
- Fig. 5 schematically shows a flowchart of an embodiment of the inventive method according to a second aspect.
- two pulse outputs 115 and 120 follow each other in spatial and temporal coordination such that the medium ejected in one of the pulse bursts follows, so to speak, in the slipstream the medium of the other pulse output, whereby a higher range can be achieved.
- the currently available technology can be achieved with a discharge tube sufficient temporal proximity of two pulse outputs (if at all) only with great technical effort.
- a corresponding temporal coordination can be achieved comparatively easily, as long as the distance between the ejection ends transversely to the ejection direction is sufficiently small in the case of essentially the same ejection direction.
- one of the ejection pipes can also be arranged offset in the ejection direction with respect to the other, wherein a slipstream effect can be achieved even with a simultaneous shot of both ejector pipes.
- the device is equipped with a sighting device for visual alignment of the ejecting direction and a laser unit as a means for determining the distance between the ejection tube and the target. It is provided a fuse that a full impact (12 l of water, expelled at 36 bar air pressure, equivalent to about a force of 250 kilos) at a distance of less than 30 meters only after separate release unlocking allowed.
- a camera which receives the target field, can be connected to a central office, for example via a satellite connection. Alternatively or additionally, the images taken by the camera can also be stored locally for documentation.
- the device is provided with a hydraulic drive or a corresponding motor and comprises a power pack (inter alia, water pump, hydraulic, compressor in a compact arrangement).
- a power pack inter alia, water pump, hydraulic, compressor in a compact arrangement.
- the device is in addition to the star-shaped with curved slits rubber membrane (see Fig. 3 ) provided with a mouth flap, which prevents leakage of water, which otherwise otherwise in downwardly inclined ejection tube could occur.
- the muzzle flap is opened in the time range of a few milliseconds before the shot, ensuring that no shot is fired when the muzzle flap is not open.
- the displaceable nozzle member In the pipe end, the displaceable nozzle member is provided, which is moved in a shot in the weft direction through the water and thereby opens the star-shaped cut diaphragm. Due to the elasticity of the membrane, the nozzle element is pushed back into the tube after the shot to its rest position.
- the main beam is maintained with this arrangement for about 20 meters, a distance at which the beam has already expanded to 4.5 m in the conventional IFEX Dual Intruder.
- the jet spreads to an atomized cloud, with the added CS gas also being dispersed.
- the resulting CS-gas cloud is larger than the water cloud in a firefighting and remains in front of a possible precipitation even longer in the air.
- the distance at which the main cloud occurs can be adjusted via the discharge pressure, which can be increased from the previously used 25 bar up to 35 bar. It has been found that controlled shot ranges of up to 60 m can be achieved in the above embodiments.
- the device according to the invention and the method according to the invention can also be used, like the known devices, in the field of fire fighting.
- Other options are to make a neutralization / detoxification of a contaminated area, for example, instead of an admixture of irritant gas, a suitable neutralizing agent or antivenom alone or with water or other carrier used as a medium, or in the targeted spreading a treatment or fertilizer in the area agriculture, eg in the form of a fungicide in the field of viticulture.
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Nozzles (AREA)
- Surgical Instruments (AREA)
- Catching Or Destruction (AREA)
Claims (14)
- Dispositif d'éjection pulsée de fluide, comprenant :un tube d'éjection (1) de fluide, par lequel un fluide peut être éjecté de manière pulsée à l'aide d'un agent de propulsion par une extrémité d'éjection du tube d'éjection (1) dans une direction d'éjection (15),une membrane (6) dans la zone de l'extrémité d'éjection, qui, en cas d'éjection de fluide, peut se déformer élastiquement pour former une ouverture de passage (20) du fluide, et un élément de buse (9) dans le tube d'éjection (1), conçu pour pouvoir coulisser dans la direction d'éjection entre une position de repos (9') et une position d'éjection (9"),dans lequel l'élément de buse (9), dans la position d'éjection (9"), provoque une déformation de la membrane (6) afin de former l'ouverture de passage (20) et, dans la position de repos (9'), provoque une déformation plus faible ou nulle de la membrane (6) etdans lequel l'élément de buse (9) peut être amené de la position de repos (9') à la position d'éjection (9'') lors de l'éjection de fluide,caractérisé en ce quela membrane (6) comprend une pluralité de fentes (35) qui s'étendent dans un plan perpendiculairement à la direction d'éjection (15) du centre de la membrane (6) vers l'extérieur,dans lequel les fentes (35) présentent une courbure.
- Dispositif selon la revendication 1,
dans lequel l'élément de buse (9), lors d'une éjection de fluide, peut être amené à l'aide du fluide de la position de repos (9') à la position d'éjection (9"). - Dispositif selon l'une quelconque des revendications précédentes,
dans lequel l'élément de buse (9) définit un espace intérieur de buse (25) par lequel le fluide peut passer lors de l'éjection, dans lequel l'espace intérieur de buse (25) s'élargit à l'encontre de la direction d'éjection (15). - Dispositif selon l'une quelconque des revendications précédentes,
dans lequel l'élément de buse (9) peut être amené à l'aide d'une force de rappel de la position d'éjection (9") à la position de repos (9'), dans lequel la force de rappel est produite par la déformation de la membrane (6). - Dispositif selon l'une quelconque des revendications précédentes,
comprenant un espace d'amortissement (A) disposé entre l'élément de buse (9) et le tube d'éjection (1), et qui est en contact, lorsque l'élément de buse (9) se situe au moins dans la position de repos (9'), avec l'espace intérieur du tube d'éjection (1) pour recevoir le fluide. - Dispositif selon la revendication 5,
dans lequel l'élément de buse (9) comprend au moins une ouverture d'amenée (B) et/ou un évidement d'amenée par lesquels, dans la position de repos (9'), l'espace intérieur de buse (25) est relié à l'espace d'amortissement (A) pour le passage du fluide. - Dispositif selon la revendication 5 ou 6,
dans lequel l'élément de buse (9) comprend au moins une ouverture d'amortissement (C) par laquelle le fluide peut sortir de l'espace d'amortissement (A) lorsque l'élément de buse (9) se déplace de la position de repos à la position d'éjection (9"). - Dispositif selon l'une quelconque des revendications précédentes,
dans lequel l'élément de buse (9) comprend une pluralité de trous (B) qui sont disposés de telle manière que, lorsque le fluide est éjecté, du gaz peut être entraîné depuis l'environnement à travers les trous (B). - Dispositif selon l'une quelconque des revendications précédentes,
comprenant un manchon de guidage (8, 10) à l'aide duquel l'élément de buse (9) et le tube d'éjection (1) sont accouplés l'un à l'autre et qui est conçu pour guider l'élément de buse (9). - Dispositif selon l'une quelconque des revendications précédentes,
dans lequel le dispositif est conçu pour établir une pression variable d'un agent de propulsion pour l'éjection pulsée de fluide. - Dispositif selon l'une quelconque des revendications précédentes,
dans lequel le dispositif est conçu avec au moins deux tubes d'éjection (1) voisins pour l'éjection coordonnée dans le temps, et à au moins deux reprises, de fluide, la deuxième éjection pulsée étant sensiblement subséquente à la première éjection pulsée. - Dispositif selon l'une quelconque des revendications précédentes,
dans lequel le dispositif est conçu sélectivement pour libérer l'élément de buse (9) afin qu'il puisse coulisser ou pour fixer l'élément de buse (9). - Procédé d'éjection pulsée de fluide d'un tube d'éjection (1) d'un dispositif d'éjection pulsée de fluide, le dispositif comprenant une membrane (6) dans la zone d'une extrémité d'éjection du tube d'éjection (1) et un élément de buse (9) dans le tube d'éjection (1),
dans lequel l'élément de buse (9), lors de l'éjection de fluide, est amené (105) d'une position de repos (9') à une position d'éjection (9"),
dans lequel l'élément de buse (9) provoque (110), dans la position d'éjection (9'), une déformation de la membrane (6) afin de former une ouverture de passage (20) du fluide,
caractérisé en ce que
la membrane (6) comprend une pluralité de fentes (35) qui s'étendent dans un plan perpendiculairement à la direction d'éjection (15) du centre de la membrane (6) vers l'extérieur,
les fentes (35) présentant une courbure. - Procédé d'augmentation de la portée d'une éjection pulsée de fluide, comprenant les étapes d'une première et d'une deuxième éjection pulsée (115, 120) de fluide au moyen d'un procédé selon la revendication 13, la deuxième éjection pulsée (120) étant coordonnée dans le temps et dans l'espace avec la première éjection pulsée (115), de telle sorte que la deuxième éjection pulsée (120), pour l'augmentation de sa portée, est sensiblement subséquente à la première éjection pulsée (115).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008026449A DE102008026449A1 (de) | 2008-06-03 | 2008-06-03 | Vorrichtung und Verfahren zum Impuls-Ausstoß von Medium |
PCT/EP2009/056743 WO2009147139A2 (fr) | 2008-06-03 | 2009-06-02 | Dispositif et procédé d'éjection pulsée de fluide |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2285454A2 EP2285454A2 (fr) | 2011-02-23 |
EP2285454B1 true EP2285454B1 (fr) | 2015-10-21 |
Family
ID=41139299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09757520.3A Not-in-force EP2285454B1 (fr) | 2008-06-03 | 2009-06-02 | Dispositif et procédé d'éjection pulsée de fluide |
Country Status (10)
Country | Link |
---|---|
US (1) | US9283576B2 (fr) |
EP (1) | EP2285454B1 (fr) |
CN (1) | CN102076385A (fr) |
DE (1) | DE102008026449A1 (fr) |
EA (1) | EA019407B1 (fr) |
ES (1) | ES2557284T3 (fr) |
HU (1) | HUE025883T2 (fr) |
PL (1) | PL2285454T3 (fr) |
PT (1) | PT2285454E (fr) |
WO (1) | WO2009147139A2 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015206425A1 (de) | 2015-04-10 | 2016-10-13 | Martijn Steur | Vorrichtungen und Verfahren zum Impuls-Ausstoß von Medium |
CN107167836B (zh) * | 2017-05-25 | 2019-02-01 | 黄河水利委员会黄河水利科学研究院 | 一种大能量智能可控震源 |
EP3711822B1 (fr) * | 2019-03-22 | 2024-03-06 | Rembe GmbH Safety + Control | Système de disque de rupture et dispositif d'extinction doté d'un réservoir d'agent d'extinction |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030189067A1 (en) * | 2002-04-04 | 2003-10-09 | Gene Stull | Self-cleaning shape memory retaining valve |
Family Cites Families (23)
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US3520477A (en) * | 1968-02-23 | 1970-07-14 | Exotech | Pneumatically powered water cannon |
US3533553A (en) * | 1968-07-30 | 1970-10-13 | Meridian Enterprises Inc | Aerating fountain device |
US3722819A (en) * | 1971-04-19 | 1973-03-27 | Exotech | Pulsed jet riot control apparatus |
US3784103A (en) * | 1972-08-01 | 1974-01-08 | W Cooley | Pulsed liquid jet device |
US4058256A (en) * | 1975-05-30 | 1977-11-15 | Cadillac Gage Company | Water cannon |
DE2817102C2 (de) * | 1978-04-19 | 1985-01-24 | Dr. Eduard Fresenius, Chemisch-pharmazeutische Industrie KG, 6380 Bad Homburg | Anschlußstück für Kunststoffkanülen oder Venenkatheter |
DE3139948A1 (de) * | 1981-10-08 | 1983-04-28 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoff-einspritzduese fuer brennkraftmaschinen |
DE3811261A1 (de) * | 1988-04-02 | 1989-10-19 | Thomae Gmbh Dr K | Vorrichtungen zur gesteuerten freisetzung dosierter mengen von in gasen feinverteilten fluessigkeiten |
HU203995B (en) | 1989-01-04 | 1991-11-28 | Istvan Szoecs | Method and apparatus for fine dispersing fluid or powder in gaseous medium advantageously air |
US5005767A (en) * | 1989-08-24 | 1991-04-09 | L.R. Nelson Corporation | Slitted dirt seal for inground sprinkler heads |
US5445226A (en) * | 1993-05-04 | 1995-08-29 | Scott Plastics Ltd. | Foam generating apparatus for attachment to hose delivering pressurized liquid |
US5398873A (en) * | 1994-04-28 | 1995-03-21 | Johnson; Lonnie G. | Fluid pulsator with accumulator for frequency control |
HU213005B (en) | 1994-06-27 | 1997-01-28 | Szoecs | Device for dispersing fluid or dust to gas, mainly to air |
US5979791A (en) * | 1997-12-01 | 1999-11-09 | Kuykendal; Robert L. | Intermittant water jet |
US6119955A (en) * | 1998-05-13 | 2000-09-19 | Technifex, Inc. | Method and apparatus for producing liquid projectiles |
DE19911805A1 (de) * | 1999-03-17 | 2000-09-28 | Bosch Gmbh Robert | Spritzvorrichtung für eine Scheibenwaschanlage |
FR2795347B1 (fr) * | 1999-06-23 | 2001-08-03 | Exel Ind | Pistolet automatique a membrane pour la pulverisation d'un produit |
DE19934164C2 (de) | 1999-07-21 | 2003-12-24 | Bayern Chemie Gmbh Flugchemie | Löschgerät |
DE10016738B4 (de) | 2000-04-04 | 2004-03-11 | Bayern Chemie Gmbh | Verfahren zur Unterdrückung anlaufender Explosionen |
DE10021511B4 (de) | 2000-05-03 | 2004-03-18 | Bayern-Chemie Gmbh | Löschgerät |
US20050171510A1 (en) * | 2004-01-29 | 2005-08-04 | Dicarlo Paul | Pressure actuated safety valve with spiral flow membrane |
US8034035B2 (en) * | 2004-01-29 | 2011-10-11 | Navilyst Medical, Inc. | Pressure activated safety valve with high flow slit |
WO2007015649A1 (fr) * | 2005-08-01 | 2007-02-08 | Alto Holdings Limited | Ensembles bouchon ou fermeture, forme de rétention, moulages et outillage |
-
2008
- 2008-06-03 DE DE102008026449A patent/DE102008026449A1/de not_active Withdrawn
-
2009
- 2009-06-02 PL PL09757520.3T patent/PL2285454T3/pl unknown
- 2009-06-02 ES ES09757520.3T patent/ES2557284T3/es active Active
- 2009-06-02 US US12/995,984 patent/US9283576B2/en not_active Expired - Fee Related
- 2009-06-02 EA EA201071347A patent/EA019407B1/ru not_active IP Right Cessation
- 2009-06-02 PT PT97575203T patent/PT2285454E/pt unknown
- 2009-06-02 HU HUE09757520A patent/HUE025883T2/hu unknown
- 2009-06-02 WO PCT/EP2009/056743 patent/WO2009147139A2/fr active Application Filing
- 2009-06-02 EP EP09757520.3A patent/EP2285454B1/fr not_active Not-in-force
- 2009-06-02 CN CN2009801253300A patent/CN102076385A/zh active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030189067A1 (en) * | 2002-04-04 | 2003-10-09 | Gene Stull | Self-cleaning shape memory retaining valve |
Also Published As
Publication number | Publication date |
---|---|
US9283576B2 (en) | 2016-03-15 |
WO2009147139A2 (fr) | 2009-12-10 |
WO2009147139A3 (fr) | 2010-04-29 |
PL2285454T3 (pl) | 2016-09-30 |
EA019407B1 (ru) | 2014-03-31 |
US20110240759A1 (en) | 2011-10-06 |
EA201071347A1 (ru) | 2011-06-30 |
CN102076385A (zh) | 2011-05-25 |
PT2285454E (pt) | 2016-02-08 |
HUE025883T2 (hu) | 2016-05-30 |
EP2285454A2 (fr) | 2011-02-23 |
DE102008026449A1 (de) | 2009-12-10 |
ES2557284T3 (es) | 2016-01-25 |
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