EP4065508A1 - Pistolet disbributeur doté d'un dispositif d'antiretournement - Google Patents

Pistolet disbributeur doté d'un dispositif d'antiretournement

Info

Publication number
EP4065508A1
EP4065508A1 EP20804592.2A EP20804592A EP4065508A1 EP 4065508 A1 EP4065508 A1 EP 4065508A1 EP 20804592 A EP20804592 A EP 20804592A EP 4065508 A1 EP4065508 A1 EP 4065508A1
Authority
EP
European Patent Office
Prior art keywords
valve
nozzle
closed position
fluid
leakage protection
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
Application number
EP20804592.2A
Other languages
German (de)
English (en)
Other versions
EP4065508B1 (fr
Inventor
Lasse Schulz-Hildebrandt
Sebastian Viets
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elaflex Hiby GmbH and Co KG
Original Assignee
Elaflex Hiby GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Elaflex Hiby GmbH and Co KG filed Critical Elaflex Hiby GmbH and Co KG
Priority to EP22211582.6A priority Critical patent/EP4163249B1/fr
Publication of EP4065508A1 publication Critical patent/EP4065508A1/fr
Application granted granted Critical
Publication of EP4065508B1 publication Critical patent/EP4065508B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/42—Filling nozzles
    • B67D7/54—Filling nozzles with means for preventing escape of liquid or vapour or for recovering escaped liquid or vapour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/42—Filling nozzles
    • B67D7/44—Filling nozzles automatically closing
    • B67D7/46—Filling nozzles automatically closing when liquid in container to be filled reaches a predetermined level
    • B67D7/48—Filling nozzles automatically closing when liquid in container to be filled reaches a predetermined level by making use of air suction through an opening closed by the rising liquid

Definitions

  • the present invention relates to a nozzle for dispensing a fluid.
  • the dispensing valve comprises an inlet opening for connection to a fluid supply line, an outlet end opposite the inlet opening, and a main valve for
  • the leakage protection valve comprises a valve seat and a valve body which can be moved upstream into a closed position.
  • a problem in the prior art is that the fluid flow is impaired by the leakage protection valve when the main valve is open. In particular, high back pressure and undesirable turbulence can occur at the leakage protection valve.
  • the valve body has a first part body and a second part body which is designed to be movable relative to the first.
  • a first fluid path can be released by a downstream movement of the first part body relative to the valve seat.
  • a second fluid path can be released by a downstream movement of the second part body relative to the first part body.
  • the leakage protection valve serves to prevent the leakage of residual quantities of the fluid which remain in the nozzle after closing the main valve downstream of the main valve.
  • the valve body of the leakage protection valve can be held in the closed position by means of a holding force which is large enough to prevent the residual quantities from leaking out.
  • the holding force is regularly so small that an opening pressure generated by the fluid flow when the main valve is open is sufficient to open the leakage protection valve.
  • the nozzle is preferred for dispensing liquids, in particular fuels such as gasoline or
  • upstream and downstream used in the context of the description relate to the main flow direction of the fluid, which is oriented from the inlet opening to the outlet end. Since the discharge valve according to the invention has a first part body and a second part body movable downstream relative thereto, the fluid flow can pass through the discharge discharge valve more evenly and stably, and the back pressure in front of the discharge discharge valve is also reduced.
  • the second partial body according to the invention which is designed to be movable relative to the first partial body, in addition to the first fluid path, which is opened by the movement of the first partial body relative to the valve seat, a second fluid path can be released, which allows an additional flow through the discharge valve .
  • the second part of the body can also be moved relative to the first part of the body by the opening pressure which is generated by the fluid flow after the main valve is opened.
  • the fluid flow passing through the nozzle can be divided into the first fluid path and the second fluid path, which overall leads to improved flow dynamics with increased throughput and lower back pressure in front of the discharge valve.
  • the first fluid path can in particular lead past an inlet-side end of the first partial body on the outside, wherein the second fluid path can lead past the inlet-side end of the first partial body on the inside.
  • the first part body has at least one passage opening for the second fluid path, the passage opening being caused by the movement of the second Part of the body can be released relative to the first part of the body. Via the passage opening, the flow conveyed in front of the first part of the body can be merged with the flow conveyed along the outside, which leads to a further improvement in the flow dynamics.
  • the second partial body can alswei sen a sealing surface for contact with a counter-sealing surface of the first partial body, the counter-sealing surface preferably forming a partial body valve seat for the first partial body.
  • the passage opening of the first part of the body can in this case, in particular, be located downstream of the counter-sealing surface when the leakage protection valve is in the closed position.
  • the sealing surface and the counter-sealing surface can ensure that the leakage protection valve locks securely in the closed position and the residual quantities of fluid are thus reliably prevented from leaking.
  • the sealing surface of the second part-body and the counter-sealing surface of the first part-body are at an angle between 60 ° and 120 °, preferably between 80 ° and 100 ° to an axial direction of the anti-leakage valve. More preferably, the sealing surface of the second part-body and the counter-sealing surface of the first part-body are essentially perpendicular to the axial direction of the leakage protection valve. If the axial direction of the leakage protection valve is essentially perpendicular to the sealing surfaces, a good sealing effect can be achieved in a simple manner.
  • the sealing surface and the counter-sealing surface can preferably be designed in such a way that, in the closed position of the leakage protection valve, they rest essentially flat against one another. It is advantageous if the second partial body has a peripheral surface which is completely radially surrounded by the first partial body in the closed position of the anti-leakage valve.
  • the second part body can in particular be arranged concentrically to the first part body. In this way, the second partial body can be guided safely within the first partial body, the counter-sealing surface of the first partial body being able to rest fully against the sealing surface of the second partial body in the closed position.
  • the second partial body preferably tapers in cross section starting from the sealing surface towards the inlet-side end.
  • an outer surface of the second partial body in the region of the taper can have a first section and a second section arranged upstream of the first, the first section being curved outwards and the second section being curved inwards.
  • This curvature makes it possible to avoid turbulence in the second fluid path, especially when flowing past the sealing surface, whereby the flow can be further improved and the dynamic pressure can be further reduced.
  • At least one of the partial bodies can be slidably guided relative to the valve seat by means of a linear guide, the linear guide preferably having a shaft extending in the axial direction of the leakage protection valve, which is slidably guided through a through opening of the second partial body.
  • the through-opening can extend centrally along an axial direction of the second partial body.
  • the second part body can also be designed to be rotationally symmetrical relative to its axial direction.
  • the linear guide can have a registration opening which is arranged rigidly relative to the valve seat and preferably extends in the axial direction of the leakage protection valve, through which a guide leg of the partial body is slidably guided.
  • one of the sub-bodies can have at least one guide leg on which the respective other sub-body is slidably guided.
  • one of the sub-bodies is designed to take the other of the sub-bodies into the closed position when moving in the direction of the closed position.
  • the second part body can be designed to take the first part body with it into the closed position when it moves in the direction of the closed position. With the acquisition of the first part of the body takes place in this case, preferably by a force transmission from the sealing surface of the second part of the body to the mating sealing surface of the first part of the body.
  • This embodiment has the advantage that it is sufficient if the second part of the body is actively moved into the closed position. The first part of the body is then taken along without the need for an additional reset element.
  • the nozzle valve can have a mechanical restoring element, for example a spring element, which is designed to urge the second partial body into the closed position.
  • the second part of the body has a magnetic material, one upstream of the second partial body arranged counter magnetic body is provided, which is designed to hold the first and second partial body in the closed position of the leakage protection valve by magnetic interaction.
  • the magnetic material can be a material that is attracted to a pole of an external magnetic field.
  • the magnetic material can be a ferromagnetic material.
  • the counter magnet body can be a permanent magnet. It is also possible that the magnetic material is designed as a permanent magnet and the opposing magnetic body is formed from a material that is attracted by a pole of an external magnetic field.
  • the first part body is preferably formed from a non-magnetic material.
  • Wei ter preferably also the magnetic material and the housing sections surrounding the counter magnetic body and / or an outlet pipe of the nozzle are formed from a non-magnetic mate rial. If the elements surrounding the magnetic material and the counter magnetic body are formed from a non-magnetic material, the magnetic interaction between the magnetic material and the counter magnetic body is not disturbed.
  • the second part body preferably has a maximum opening position which is located outside an effective area of the counter magnetic body, so that the second part body remains in an open position after a fluid discharge has ended, the second part body being movable back into the effective area using gravity, within which it is pulled into the closed position by the counter magnet body when the nozzle tends upward on the outlet side.
  • An angle of inclination of the axial direction of the leakage protection valve relative to the vertical can, for example, be between 0 ° and 110 °, preferably between see 0 ° and 90 °, more preferably between 0 ° and 70 ° be wear, where an angle of 0 ° means an orientation in the flow direction vertically downwards.
  • the second part of the body assumes the maximum open position during a fluid delivery, it remains in the open position due to this configuration after the end of the fluid delivery without the second part of the body moving in the direction of the closed position automatically caused by the magnetic force.
  • the second Partial body (by decreasing the downhill force acting towards the outlet end or by action of a downward slope force directed towards the inlet end) return to the effective area of the counter magnetic body, within which it is pulled into the closed position with the first partial body being carried along.
  • Such a lifting ge usually happens anyway when removing the Zapfven valve from a filler neck, so that a secure closure of the leakage protection valve is guaranteed.
  • the leakage protection valve is arranged at an inlet end of an outlet pipe of the Zapfven valve.
  • the leakage protection valve is arranged at an inlet end of an outlet pipe of the Zapfven valve.
  • the invention also relates to a nozzle for dispensing a fluid, comprising an inlet opening for connec tion with a fluid supply line, an outlet end opposite the inlet opening and a main valve for controlling the fluid flow through the nozzle.
  • the nozzle includes a Fühlerlei device extending to the outlet end, which is in operative connection with an automatic disconnection device, the sensor line being subjected to a vacuum during the fluid discharge, so that a gas flow can be sucked in via the end of the sensor line.
  • the sensor line has an end region in which a sensor line valve designed to close the sensor line is arranged, which valve can be moved into an open position by means of the gas flow sucked in through the sensor line.
  • the sensor line can be closed by the sensor line valve according to the invention and an undesired leakage of this amount of fluid can be prevented, and the amount of fluid entering can also be slightly reduced.
  • the sensor line valve can be preloaded into the closed position by a restoring element.
  • the aforementioned restoring element is preferably dimensioned in such a way that the sensor line valve is moved into the open position during the discharge of the fluid by the resulting gas flow.
  • the functionality of the automatic shutdown device is not impaired in any way.
  • the sensor line valve is designed to be moved into the closed position by inclining the nozzle on the outlet side downwards (using gravity).
  • the sensor line valve has a valve seat and a valve body which is arranged movably upstream of the valve seat within the sensor line so that the valve body can be moved downward into the valve seat on the outlet side by a tilt of the nozzle and by a Inclination of the nozzle from the running side can be moved upward out of the valve seat.
  • the valve body can be designed, for example, spherical.
  • valve body During refueling, the valve body is moved out of the valve seat due to the vacuum (possibly against gravity). As soon as the liquid level reaches the end of the Füh lertechnisch, there is an automatic shutdown, no more gas is sucked in, so that the valve body falls back into the valve seat. During the time required for the shutdown process, small amounts of the fluid can get into the sensor line. If the end of the nozzle is then tilted upwards, for example when hanging the nozzle in a fuel pump, the valve body falls out of the valve so that the sensor line is opened and any residual fluid that may be present can evaporate.
  • the invention also relates to an outlet pipe for a nozzle for dispensing a fluid, comprising an inlet end that can be connected to a housing of the nozzle, a admirde opposite outlet end, and a leakage protection valve with a valve seat and a valve body movable upstream into a closed position, characterized in that the valve body has a first part body and a second part body designed to be movable relative to the first, whereby a downstream movement of the First part of the body relative to the valve seat of the leakage protection valve, a first fluid path can be released and a second fluid path can be released by a downstream movement of the second part of the body relative to the first part of the body, the leakage protection valve preferably being arranged at the inlet end of the outlet pipe.
  • outlet pipe according to the invention can be developed by further features which have already been described in connection with the nozzle according to the invention.
  • FIG. 1 a nozzle according to the invention in a cross-sectional view
  • FIG. 2 the outlet pipe according to the invention of the nozzle of FIG. 1 in an enlarged view
  • FIG. 3 an enlarged view of that shown in FIG.
  • Anti-leak valve in a closed position
  • FIG. 4 an enlarged view of that shown in FIG.
  • FIG. 5 a further cross-sectional view of the leakage protection valve of the nozzle according to the invention
  • FIG. 6 a sectional view along the line AA shown in FIG. 5;
  • FIG. 7 a sectional view along the line B-B shown in FIG. 5;
  • FIG. 8 an enlarged view of that shown in FIG.
  • FIG. 9 an enlarged view of that shown in FIG.
  • FIG. 10 an enlarged view of that shown in FIG.
  • FIG. 11 a gray scale sketch to illustrate the fluid pressure prevailing inside the nozzle in the area of the leakage protection valve
  • FIG. 12 a leakage protection valve of an alternative nozzle according to the invention in a lateral sectional view in a closed position
  • FIG. 13 the leakage protection valve of FIG. 12 in an open position.
  • FIG. 1 shows a dispensing valve according to the invention in a lateral sectional view.
  • the dispensing valve comprises a housing 4, shown only schematically in FIG. 1, with an inlet opening 5 for connection to a liquid feed line.
  • an outlet pipe 10 is set, at the front end of which there is an outlet opening 12 be.
  • the flow of a liquid supplied via the inlet opening through the nozzle is controlled via the main valve.
  • Inside the nozzle there is also an automatic switch-off device, not shown, which closes the main valve if a liquid level reaches or exceeds the front end of the outlet pipe during a refueling process.
  • the outlet pipe has a sensor line 24 which is led from the Auslau fende 12 to the automatic shutdown device.
  • FIG. 2 shows an enlarged side sectional view of the outlet pipe 10 of FIG. 1.
  • a leakage protection valve 13 according to the invention is arranged at the inlet end 11 of the outlet pipe 10 (in the area 9).
  • a sensor line valve 26 is located in an end region 25 of the Fsselerlei device 24.
  • enlarged views of the areas 9 and 25 are shown, on the basis of which the mode of operation of the leakage protection valve 13 and of the sensor line valve 26 is explained in more detail.
  • FIG. 3 shows an enlarged view of the area 9 shown in FIG. 2, in which a leakage protection valve 13 is arranged.
  • Figure 3 shows the leakage protection valve 13 in a closed position.
  • the leakage protection valve 13 comprises a valve seat 14 and a valve body which is designed to close the valve seat 14 and has a first part body 15 and a second part body 16.
  • the first part body 15 lies on the valve seat 14 in the shown closed position sealing.
  • Within the first part of the body 15 there is a recess into which the second part of the body 16 is inserted.
  • the first part body 15 thus completely surrounds the second part body 16 radially.
  • a sealing surface 21 of the second part body 16 rests in a sealing manner on a counter-sealing surface 19 of the first part body 15.
  • the first part-body 15 thus forms a valve seat (or part-body valve seat) for the second part-body 16.
  • the anti-drip valve is completely closed so that any remaining liquid cannot escape from the nozzle.
  • a central shaft 29 which extends in the axial direction of the leakage protection valve and on which the second part body 16 is guided in a sliding manner.
  • the second partial body 16 has a central through-bore through which the shaft 29 is passed.
  • the shaft 29 defines an axial direction of the leakage protection valve.
  • a registration plate 33 with registration openings 32 is also rigidly connected to the valve seat 14.
  • the first partial body 15 comprises four guide legs 30 at its inlet end, of which only two are illustrated in the sectional view of FIG. 3 in the manner of a side view. The sectional plane in FIG. 3 does not run through the guide limbs 30.
  • the guide limbs 30 are respectively guided through one of the registration openings 32 in a sliding manner.
  • the first part-body 15 is thereby guided linearly at its inlet-side end.
  • the first partial body 15 comprises three guide webs 31. These are designed to slide against an outer surface of the second partial body 16 when the second partial body 16 is moved downstream relative to the first partial body 15.
  • the leadership of the partial body 15, 16 will also be explained in more detail with reference to FIGS. 5 to 7.
  • the second part body 16 is formed in the present case from a magnetic material.
  • a Ge counter magnetic body 23 is connected to the valve seat 14.
  • the counter magnetic body 23 is symmetrically arranged with respect to the axial direction predetermined by the shaft 29, whereby a uniform magnetic attraction force is exerted on the second partial body 16.
  • the partial body 16 is held in the closed position by this force of attraction.
  • the part body transmits a force to the first part body 15 by 16 due to the contact of the sealing surface 21 of the second part body 16 on the mating sealing surface 19 of the first part body 15, which is also pressed into the closed position.
  • a force effect for moving the second part of the body into the closed position can also be generated in alternative embodiments by other devices, for example by means of a mechanical restoring element, in particular by means of a spring element.
  • Figure 4 shows the leakage protection valve 13 in an open position.
  • a transition from the closed position shown in FIG. 3 to the open position can take place in particular by opening the main valve and a flow of liquid passing through the main valve.
  • the flow of liquid hits the inlet-side front surfaces of the first and second sub-bodies 15, 16 and generates an opening pressure there that is sufficient to overcome the magnetic force acting between the counter-magnet body 23 and the second sub-body 16 and both the first sub-body 15 and the second Part body 16 to move downstream.
  • FIG. 4 it can be seen that, compared to the closed position shown in FIG. 3, on the one hand the first partial body 15 opposite the valve seat 14 and on the other hand the second partial body 16 with respect to the first partial body 15 moved downstream.
  • a first fluid path 17 is released.
  • a second fluid path 18 is released.
  • the liquid flow impinging on the leakage protection valve 13 can thus either flow along the first fluid path 17, which runs between an outer surface of the first part-body 15 and the valve seat 14, or along the second fluid path 18, which is initially on the outside of the second part-body 16 and on the inside past the first part body 15 and then runs through a passage opening 20 in the first part body 15.
  • the first fluid path 17 merges with the second fluid path 18 behind the passage opening. With the additional second fluid path 18, the throughput through the leakage protection valve can be increased and the back pressure in front of the valve can be reduced.
  • another fluid path may be present within the scope of the invention, which runs through a gap between an outer surface of the shaft 29 and an inner surface of the central through-hole of the second part-body 16 and which is constantly open regardless of the position of the part-body by 15, 16 is.
  • Such a gap between the outer surface of the shaft 29 and the inner surface of the central through-hole may be necessary in order to enable sufficient mobility of the part-body 16 relative to the shaft 29.
  • the radial distance between the outer surface of the shaft 29 and the inner surface of the central through hole is so small that the capillary forces acting on the fluid in the space are sufficient to greatly reduce the fluid leaking through this space and preferably to prevent it completely.
  • the second part body 16 tapers in cross section starting from the sealing surface 21 in the upstream direction.
  • the outer surface of the second part body 16 is arched outward in a first section 36 and arched inwardly in a second section 35 arranged upstream thereof. Due to the curvatures in the area of the sections 35, 36, the liquid flowing along the second fluid path 18 is guided in a flow-optimized manner in the direction of the passage opening 20.
  • the first and second sub-bodies are in a maximum open position in which the sub-bodies 15, 16 strike a stop which limits the downstream mobility of the sub-bodies 15, 16.
  • the stop is here exemplarily formed by a sensor line plug 34 which is placed on one end of the sensor line 24, the stop or stops can of course also be implemented in other ways.
  • the second part of the body remains even after the liquid has been dispensed, for example after the main valve has been closed.
  • the second part body 16 is so far outside of an effective area of the counter magnetic body.
  • FIG. 5 shows a further cross-sectional view of the area 9 shown in FIG. 2, with a another cutting plane was selected.
  • the sectional plane in FIG. 5 runs through two guide webs 30 opposite one another in the transverse direction.
  • the outlet-side guide webs 31 cannot be seen in this view.
  • two Thomasli lines AA and BB are drawn.
  • Figure 6 shows a sectional view along the section line AA
  • Figure 7 shows a sectional view along the line BB.
  • FIGS. 6 and 7 show further elements, which are actually not recognizable in the sectional view, in the manner of a plan view.
  • FIG. 6 it can be seen that the guide webs 31 of the first partial body 15 rest against the outer circumference of the second partial body 16 in the valve position shown in FIG. The Detailkör by 15, 16 are thereby led to each other and stabilized relative zuei nander.
  • FIG. 7 it can be seen that the four inlet-side guide legs 30 of the first partial body 15 are guided in a sliding manner through the registration openings 32.
  • the registration openings 32 extend through the registration plate 33 connected to the valve seat 14.
  • FIGS. 8 to 10 show enlarged views of the area 25 shown in FIG. 2, in which a sensor line valve 26 is arranged at the end of the sensor line 24.
  • the sensor line valve 26 comprises a valve body 27 which can be moved within the sensor line 24 and which in the present case is designed, for example, as a ball.
  • the sensor line valve comprises a valve seat 28. Upstream of the valve seat 28 there is a blocking element 38 which limits the mobility of the valve body 27 but does not prevent gas exchange through the sensor line 24.
  • the valve body 27 can move between the valve seat 28 and the blocking element 38.
  • the valve body 27 In the state shown in FIG. 8, the valve body 27 is located inside the valve seat 28 and thus closes off the sensor line 24.
  • the valve body 27 is held in the valve seat 28 due to the downward inclination of the sensor line 24 so that it runs outwardly.
  • the main valve of the nozzle is closed in the state shown, no liquid is being dispensed.
  • the dispensing valve After a liquid has been dispensed, the dispensing valve is usually removed from a filler neck and, for example, hung in a dispensing pump. As a result, the dispensing valve and the outlet pipe 10 auslaufseifig tends to ge upwards. Due to the force of gravity, the valve body 27 falls out of the valve seat 28, so that any residual amounts of liquid present in the sensor line 24 can evaporate.
  • FIG. 11 shows two gray scale sketches to illustrate the liquid pressure prevailing inside a dispensing valve in the area of a discharge valve. Light gray tones create a low pressure and darker gray tones create a higher pressure displayed. The pressure values were obtained through a mathematical simulation.
  • FIG. 11A top shows the pressure conditions in a conventional leakage protection valve known from the prior art, which has a one-part valve body which is arranged in the region 40.
  • FIG. 11B shows the pressure conditions within a nozzle according to the invention in the area of the anti-leakage valve 13.
  • the anti-leakage valve 13 and the other elements of the nozzle are not explicitly shown, however, based on a comparison with FIG. 4, the position of the respective elements ( in particular of the first part body 15 and the second part body 16) can be identified. The positions are identified in FIG. 11B with the corresponding reference symbols.
  • the leakage protection valve 13 is in the geöffne th state in which the part bodies 15, 16 release the fluid paths 17 and 18.
  • a comparison of the gray values in illustrations A and B shows that a lower back pressure is established in front of the leakage protection valve 13 according to the invention.
  • Figures 12 and 13 show a leakage protection valve of an alternative embodiment of a nozzle according to the invention in a side sectional view.
  • the leakage protection valve is in a closed position and in FIG. 13 in an open position.
  • the first partial body 15 comprises an annular flat sealing element 15b and two partial body elements 15a and 15b.
  • the part-body element 15a is connected to the downstream side of the flat sealing element 15b in such a way that a radially inner, downstream-facing sealing surface 15bl is exposed, that is, it is not covered by the part-body element 15a.
  • the part-body element 15c is connected to the upstream side of the flat sealing element 15b in such a way that a radially outer, upstream-facing sealing surface 15b2 is exposed, that is, it is not covered by the part-body element 15c.
  • the sealing surfaces 15bl and 15b2 are aligned approximately perpendicular to an axial direction of the leakage protection valve.
  • the second partial body 16 has an upstream-facing sealing surface 21 'which is designed to abut against the sealing surface 15bl.
  • the leakage protection valve in this embodiment has a valve seat 14 ', which is designed for sealing contact with the sealing surface 15b2.
  • the part-body elements 15a and 15c serve to reduce the effects of the flat sealing element 15b on the flow of liquid in the opening position of the leakage protection valve.
  • the part-body elements 15a, 15c guide the flow of liquid past the flat seal element 15b as advantageously as possible.
  • the part-body elements 15a, 15c taper in the axial direction (that is, in the downstream direction or upstream), the outer surfaces of the section restructuringele elements 15a, 15c are curved inward and outward.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Lift Valve (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Basic Packing Technique (AREA)

Abstract

Pistolet distributeur destiné à délivrer un fluide, comprenant un orifice d'entrée à raccorder à une conduite d'alimentation en fluide, une extrémité de sortie (12) située à l'opposé de l'orifice d'entrée, une soupape principale destinée à la commande du débit de fluide au niveau du pistolet distributeur et une soupape d'antiretournement (13) disposée en aval de la soupape principale et comportant un siège de soupape (14) et un corps de soupape (15, 16) apte à être amené en position fermée en amont. Selon l'invention, le corps de soupape (15, 16) présente un premier corps partiel (15) et un deuxième corps partiel (16) qui est conçu mobile par rapport au premier corps partiel, une première voie fluidique (17) pouvant être dégagée par un mouvement, dirigé vers l'aval, du premier corps partiel (15) par rapport au siège de soupape (14), et une deuxième voie fluidique (18) pouvant être dégagée par un mouvement, dirigé vers l'aval, du deuxième corps partiel (16) par rapport au premier corps partiel (15). Le corps de soupape en deux corps partiels selon l'invention permet d'optimiser le débit au niveau du pistolet distributeur et de réduire la pression de retenue régnant en amont de la soupape d'antiretournement.
EP20804592.2A 2019-11-29 2020-11-18 Pistolet de distribution doté d'un dispositif de protection contre les fuites Active EP4065508B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22211582.6A EP4163249B1 (fr) 2019-11-29 2020-11-18 Pistolet disbributeur doté d'un dispositif d'antiretournement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19212605 2019-11-29
PCT/EP2020/082515 WO2021104961A1 (fr) 2019-11-29 2020-11-18 Pistolet disbributeur doté d'un dispositif d'antiretournement

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP22211582.6A Division-Into EP4163249B1 (fr) 2019-11-29 2020-11-18 Pistolet disbributeur doté d'un dispositif d'antiretournement
EP22211582.6A Division EP4163249B1 (fr) 2019-11-29 2020-11-18 Pistolet disbributeur doté d'un dispositif d'antiretournement

Publications (2)

Publication Number Publication Date
EP4065508A1 true EP4065508A1 (fr) 2022-10-05
EP4065508B1 EP4065508B1 (fr) 2024-01-03

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ID=68732974

Family Applications (2)

Application Number Title Priority Date Filing Date
EP22211582.6A Active EP4163249B1 (fr) 2019-11-29 2020-11-18 Pistolet disbributeur doté d'un dispositif d'antiretournement
EP20804592.2A Active EP4065508B1 (fr) 2019-11-29 2020-11-18 Pistolet de distribution doté d'un dispositif de protection contre les fuites

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP22211582.6A Active EP4163249B1 (fr) 2019-11-29 2020-11-18 Pistolet disbributeur doté d'un dispositif d'antiretournement

Country Status (12)

Country Link
US (2) US11603309B2 (fr)
EP (2) EP4163249B1 (fr)
CN (2) CN114746359B (fr)
AR (1) AR120586A1 (fr)
AU (1) AU2020393289A1 (fr)
CA (1) CA3156226A1 (fr)
DK (1) DK4065508T3 (fr)
ES (1) ES2971700T3 (fr)
MX (1) MX2022006492A (fr)
PL (1) PL4065508T3 (fr)
PT (2) PT4163249T (fr)
WO (1) WO2021104961A1 (fr)

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Also Published As

Publication number Publication date
NZ788422A (en) 2024-01-26
CA3156226A1 (fr) 2021-06-03
PL4065508T3 (pl) 2024-04-22
AU2020393289A1 (en) 2022-06-09
US20230174367A1 (en) 2023-06-08
DK4065508T3 (da) 2024-02-05
CN116477554A (zh) 2023-07-25
US11603309B2 (en) 2023-03-14
WO2021104961A1 (fr) 2021-06-03
PT4065508T (pt) 2024-01-26
AR120586A1 (es) 2022-02-23
EP4065508B1 (fr) 2024-01-03
ES2971700T3 (es) 2024-06-06
US20230018431A1 (en) 2023-01-19
MX2022006492A (es) 2022-07-04
US11999610B2 (en) 2024-06-04
CN114746359A (zh) 2022-07-12
EP4163249B1 (fr) 2024-05-29
PT4163249T (pt) 2024-06-24
EP4163249A1 (fr) 2023-04-12
CN114746359B (zh) 2023-05-16

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