EP4067726B1 - Ventil zum verschliessen eines gasbehälters - Google Patents

Ventil zum verschliessen eines gasbehälters Download PDF

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Publication number
EP4067726B1
EP4067726B1 EP21166300.0A EP21166300A EP4067726B1 EP 4067726 B1 EP4067726 B1 EP 4067726B1 EP 21166300 A EP21166300 A EP 21166300A EP 4067726 B1 EP4067726 B1 EP 4067726B1
Authority
EP
European Patent Office
Prior art keywords
valve
gas
bore
base body
gas container
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.)
Active
Application number
EP21166300.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4067726A1 (de
Inventor
Andreas Höfferer
Daniel Manojlovic
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.)
Isi GmbH
Original Assignee
Isi GmbH
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 Isi GmbH filed Critical Isi GmbH
Priority to ES21166300T priority Critical patent/ES2956520T3/es
Priority to EP21166300.0A priority patent/EP4067726B1/de
Priority to CN202280024385.8A priority patent/CN117063010A/zh
Priority to AU2022251836A priority patent/AU2022251836B2/en
Priority to PCT/EP2022/058218 priority patent/WO2022207611A1/de
Priority to US18/279,929 priority patent/US20240151365A1/en
Publication of EP4067726A1 publication Critical patent/EP4067726A1/de
Application granted granted Critical
Publication of EP4067726B1 publication Critical patent/EP4067726B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0617—Single wall with one layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0305—Bosses, e.g. boss collars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/234—Manufacturing of particular parts or at special locations of closing end pieces, e.g. caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/013—Carbone dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/07—Applications for household use
    • F17C2270/0736—Capsules, e.g. CO2

Definitions

  • the present invention relates to a valve for closing a gas container, the valve comprising a valve body with a continuous longitudinal bore along a longitudinal axis, in which longitudinal bore a displaceably guided valve tappet is mounted, the valve body extending in a longitudinal direction parallel to the longitudinal axis from a connection area with a end surface on the connection side to a fastening area with an end surface on the gas container side, the fastening area having a smaller diameter than the connection area and the connection area having a stop surface in order to provide a stop for a base body head of the gas container when the fastening area is inserted through an opening in the base body head into the latter .
  • Gas containers filled with gas can be connected in a gas-tight manner to a device, for example a soda siphon, a whipped cream siphon or a pressure regulator, in order to ensure a corresponding gas supply to the siphon or the device.
  • a device for example a soda siphon, a whipped cream siphon or a pressure regulator, in order to ensure a corresponding gas supply to the siphon or the device.
  • the EP 0 867 656 B1 a pressurized gas capsule with a valve body, the valve body being pressed to the gas container only via a simple groove, so that at high pressure there is a risk of the valve body being pushed out of the gas container.
  • the valve body In order to limit the freedom of movement of a valve tappet that is mounted displaceably along a longitudinal axis in a continuous longitudinal bore, the valve body has projections that protrude radially inward only in a plane that is normal to the longitudinal axis, which, however, do not properly ensure a secure pressure-based movement or even retention of the valve tappet.
  • valve according to the invention even at high pressure of the gas in the gas tank, protection should be ensured against the valve or a valve body of the valve being pushed out or pushed out of the gas tank, with preferably additionally a secured pressure-based movement and mounting of a displaceable valve in the valve body mounted valve tappet should be guaranteed.
  • a valve for closing a gas container has a valve comprising a valve body with a continuous longitudinal bore along a longitudinal axis, in which longitudinal bore a displaceably guided valve tappet is mounted, the valve body extending in a longitudinal direction parallel to the longitudinal axis from a connection area with an end face on the connection side to a fastening area with an end face on the gas container side, the fastening area having a smaller diameter than the connection area and the connection area having a stop surface in order to provide a stop for a base body head of the gas container when the fastening area passes through an opening in the base body head is inserted into this, according to the invention that the valve body has a double groove on the lateral surface in the fastening area, the double groove comprising two individual grooves following one another in the longitudinal direction, which are separated from one another by a sealing lug pointing away from the longitudinal axis in order to enable gas-tight compression of the base body head with the fastening area in the area of the double groove
  • connection side and "gas tank side” are to be understood with regard to the intended use. Likewise, one could speak of a first end face (instead of an end face on the connection side) and a second end face (instead of an end face on the gas container side).
  • two individual grooves located one behind the other are arranged in the fastening area on the lateral surface of the valve body in such a way that an elevation is formed between them.
  • This elevation forms the sealing nose, through which the valve body can be connected in a gas-tight manner by means of two compressions formed one behind the other on the gas container or on its gas container neck or base body head.
  • a double pressing of the valve body with the gas container by means of a forming process preferably a rolling (a manufacturing process known per se for forming rotationally symmetrical semi-finished products, whereby in the case of tubular semi-finished products by controlled closing of internal and/or external shape-determining tools and by continuous rolling on the beads or grooves running around the workpiece can be produced), which can reliably prevent the gas container from bursting, in particular in the area of the gas container neck, or the valve body from being pressed out of the gas container neck or the head of the base body at more than 500 bar, preferably up to a maximum pressure of 550 bar.
  • a rolling a manufacturing process known per se for forming rotationally symmetrical semi-finished products, whereby in the case of tubular semi-finished products by controlled closing of internal and/or external shape-determining tools and by continuous rolling on the beads or grooves running around the workpiece can be produced
  • such an arrangement ensures that the gas tank at a pressure that is at a maximum permissible fill factor of 0.75 kg/l (for carbon dioxide (CO2) or nitrous oxide (N2O)) and a temperature of approx. 130°C, preserves its integrity and shape.
  • the limited available installation space is optimally taken into account by the double groove.
  • connection area extends in the longitudinal direction from an initial area (comprising the end face on the connection side) to an end area (comprising the stop face).
  • the diameter of the connection area, particularly in its end area, is larger than the diameter of the fastening area, which typically applies to the entire fastening area.
  • Each individual groove has an individual groove base.
  • the sealing lug protrudes beyond these individual groove bases.
  • the fastening area is preferably pushed completely or so far into the base body head that the base body head contacts the stop surface acting as a stop.
  • the continuous longitudinal bore comprises at least three bore sections with at least two different diameters. This enables the drill sections to be functionalized differently, with larger diameters being advantageous with regard to unhindered gas flow, for example, and a smaller diameter proving to be advantageous for the bearing of the valve tappet.
  • At least one first drilling section is arranged in the connection area and that at least a second and third drilling section are arranged in the fastening area.
  • This arrangement not only proves to be particularly favorable in terms of production technology, but can also be advantageous with regard to the different functionality of the individual drilling sections.
  • the bore section provided for mounting the valve tappet is arranged in the fastening area, a mechanically extremely stable mounting is ensured when the fastening area is pushed into the base body head of the gas container and pressed gas-tight with it.
  • more than one first drilling section is arranged in the connection area and/or that more than two drilling sections (or more than the second drilling section and the third drilling section, e.g. a fourth or a fourth and a fifth drilling section) are provided in the fastening area could be.
  • the second drilling section located between the first drilling section and the third drilling section has a smaller diameter than the first drilling section and the third drilling section, with the valve tappet being slidably mounted in the second drilling section is.
  • the valve body has a first snap-in lug arrangement in the longitudinal bore in the fastening area, preferably in a third bore section of the longitudinal bore, through which first snap-in lug arrangement a section-wise narrowing of the longitudinal bore in the fastening area, preferably in the third Drilling section, is ensured, wherein the first snap-in nose arrangement has at least one bulge pointing towards the longitudinal axis.
  • This first snap-in lug arrangement serves to ensure a secure, pressure-based movement and retention of the valve tappet in the valve body while the gas container is being filled with gas.
  • valve tappet can be moved from a closed position, in which the valve or the longitudinal bore is closed in a gas-tight manner by the valve tappet, along the longitudinal axis in the longitudinal direction into a filling position.
  • the valve tappet releases the valve or the longitudinal bore for gas, so that gas can flow through the valve or the longitudinal bore, the valve tappet being in contact with the first snap-in nose arrangement.
  • the first snap-in lug arrangement prevents further movement of the valve tappet in the longitudinal direction by means of a positive fit.
  • valve tappet can be pushed at least in sections over the first snap-in nose arrangement or over its at least one bulge, with the at least one bulge receding elastically away from the longitudinal axis. This elasticity can be ensured by the choice of material for the valve body.
  • the first snap-in lug arrangement comprises three bulges, which are arranged at least in sections in a plane normal to the longitudinal axis. This narrowing in sections, caused by the three bulges, causes a particularly reliable positive position fixing of the valve tappet.
  • the three bulges of the first snap-in nose arrangement are arranged, preferably symmetrically, at an angular distance of 120° from one another, the angular distance being measured around the longitudinal axis. This guarantees an unhindered flow of gas in a particularly reliable manner, so that the gas can flow between the valve tappet, the bulges and an inner wall of the longitudinal bore when the gas container is being filled and when the gas container is being emptied.
  • the valve body has a second snap lug arrangement in the longitudinal bore in the fastening area, preferably in the third bore section, between the first snap lug arrangement and the end surface on the gas container side, through which second snap lug arrangement a further narrowing of the longitudinal bore in the fastening area is achieved in sections , preferably in the third drilling section, is ensured, with the second snap-in lug arrangement having at least one bulge pointing towards the longitudinal axis.
  • This second snap-in lug arrangement is used for secure pressure-based movement and retention of the valve tappet in the valve body while the gas tank is being emptied, with the gas flowing out of the gas tank into a device, preferably into a siphon.
  • valve tappet in this emptying position, the valve tappet is partially pushed over the first snap-in lug arrangement in the longitudinal direction, so that a portion of the valve tappet is arranged between the first and the second snap-in lug arrangement.
  • Another move in Longitudinally beyond the second snap-in lug arrangement is basically prevented by positive locking.
  • valve tappet can be pushed at least in sections over the second snap-in nose arrangement or over its at least one bulge, with the at least one bulge receding elastically away from the longitudinal axis.
  • This elasticity can be ensured by the choice of material for the valve body.
  • valve tappet when the valve is assembled, the valve tappet can be pushed counter to the longitudinal direction over the second snap-in lug arrangement and over the first snap-in lug arrangement.
  • a particularly preferred embodiment of the valve according to the invention provides for the second snap-in lug arrangement to have three bulges, which are arranged at least in sections in a plane normal to the longitudinal axis. This narrowing in sections, caused by the three bulges, causes a reliable, form-fit positional fixing of the valve tappet.
  • the three bulges of the second snap-in lug arrangement are preferably symmetrically spaced at an angular distance of 120° are arranged to each other, the angular distance being measured around the longitudinal axis. This guarantees an unhindered flow of gas in a particularly reliable manner, so that the gas can flow between the valve tappet, the bulges of the second snap-in lug arrangement and an inner wall of the longitudinal bore both when the gas container is emptied and when the gas container is filled.
  • the bulges of the first and second snap-in lug arrangements are congruent to one another or rotated by 60° to one another, viewed along the longitudinal axis are arranged.
  • the valve tappet has a thickening which is directed towards the end surface on the gas container side and is at least partially conical and which at least in sections, in particular in an end region pointing towards the end surface on the gas container side, has a maximum diameter which is larger than the diameter of the narrowing in sections formed by the first snap-in nose arrangement.
  • this in particular defines the filling position, i.e. when the plunger moves out of the closed position in the longitudinal direction until it abuts against the first snap-in nose arrangement.
  • Analog is provided in a particularly preferred embodiment of the valve according to the invention that the Maximum diameter of the thickening is greater than the diameter of the further narrowing in sections formed by the second snap-in lug arrangement.
  • valve tappet serves on the one hand as a sealing element to the valve body and on the other hand as an opening element.
  • the maximum diameter of the valve tappet is smaller than a diameter of an opening cross section of the longitudinal bore in the fastening area or the third bore section. This allows gas to flow past between the thickening and the inner wall of the longitudinal bore or the inner wall of the third bore section.
  • valve tappet is made of metal, preferably steel or stainless steel or brass, or ceramic.
  • the valve body is made from a high-temperature-resistant plastic, in particular from polyethersulfone (PES) or polysulfone (PSU) or polyetheretherketone (PEEK) or polyphenylene sulfide (PPS) or polyphenylsulfone (PPSU) or polyetherimide (PEI). , is manufactured.
  • PES polyethersulfone
  • PSU polysulfone
  • PEEK polyetheretherketone
  • PPS polyphenylene sulfide
  • PPSU polyphenylsulfone
  • PEI polyetherimide
  • a gas container with a valve comprising a base body with a base body head having an opening, the base body forming an inner volume for receiving gas at least in sections, the fastening area with the double groove passing through the opening in is pushed or pressed into the head of the base body, preferably up to the point where the head of the base body makes contact with the stop surface, and wherein the head of the base body is pressed gas-tight with the fastening area in the area of the double groove.
  • the connection area of the valve body serves to connect the gas container filled with gas to a device, preferably to a cream or soda siphon.
  • a gas container is thus created which, according to ⁇ NORM EN 16509, which relates to small portable cylinders, is not designed to be refillable, this being what is known as a one-way gas capsule. Economic disadvantages due to the high costs of refillable capsules, which are based on significantly higher normative requirements, such as individual labeling, recurring individual testing or ensuring food purity when refilling, etc., are thus reliably avoided.
  • valve 1 shows a valve 39 with a valve body 1 for closing a gas container 24, the valve body 1 comprising a continuous longitudinal bore 3 along a longitudinal axis 2, in which longitudinal bore 3 a displaceably guided valve tappet 17 is mounted, with the valve body 1 moving in a direction parallel to the longitudinal axis 2 extending longitudinal direction 40 of a connection area 18 with a connection-side end surface 20 extends to a fastening area 19 with a gas tank-side end surface 21 .
  • the attachment area 19 has a diameter 23 that is smaller than a diameter 22 of the connection area 18 opposite the attachment area 19.
  • the connection area 18 in turn has a stop surface 14 in order to provide a stop for a base body head 27 of the gas container 24 when the attachment area 19 is inserted through an opening 28 of the base body head 27 in this.
  • valve body 1 has a double groove 4 on the lateral surface in the fastening area 19, the double groove 4 comprising two individual grooves 41 following one another in the longitudinal direction 40, which are separated from one another by a sealing lug 5 pointing away from the longitudinal axis 2 in order to create a gas-tight seal
  • the valve body 1 has a double groove 4 on the lateral surface in the fastening area 19, the double groove 4 comprising two individual grooves 41 following one another in the longitudinal direction 40, which are separated from one another by a sealing lug 5 pointing away from the longitudinal axis 2 in order to create a gas-tight seal
  • two individual grooves 41 located one behind the other are arranged on the lateral surface of the valve body 1 in the fastening area 19 in such a way that a sealing lug 5 is formed between them in the form of an elevation, as a result of which it is possible to prevent the valve body 1 from being pressed out of the gas container 24 even at increased pressure is.
  • the continuous longitudinal bore 3 is composed of at least a first drill section 8, a second drill section 9 and a third drill section 10, with at least two of the three drill sections 8, 9, 10 having different diameters 11, 12, 13.
  • the first drilling section 8 is predominantly in the connection area 18 and the second drilling section 9 and third drilling section 10 is mainly arranged in the fastening area 19 .
  • the second drilling section 9 located between the first drilling section 8 and the third drilling section 10 has a smaller diameter 12 than the first drilling section 8 and the third drilling section 10, with the valve tappet in the second drilling section 9 17 is slidably mounted.
  • a first snap-in nose arrangement 6 with three bulges 6' pointing to the longitudinal axis 2 is provided in the third drilling section 10. arranged, whereby a sectional narrowing of the third drill section 10 is given.
  • the three bulges 6 ′ of the first snap-in lug arrangement 6 are arranged at least in sections in a plane normal to the longitudinal axis 2 .
  • the three bulges 6' within the third drilling section 10 are arranged symmetrically at an angular distance of 120° from one another, the angular distance being measured around the longitudinal axis 2, see in particular 4 , showing a sectional view XX 3 shows, with a cone-shaped thickening 42 (cf. 2 ) of the valve tappet 17 partially covers the three bulges 6 ′ of the first snap-in lug arrangement 6 .
  • the third drilling section 10 has a second snap-in nose arrangement 7 between the first snap-in nose arrangement 6 and the end face 21 on the gas container side, with three snap-in nose arrangements pointing to the longitudinal axis 2 Bulges 7 ', through which a further sectional narrowing of the third drilling section 10 is guaranteed.
  • This further constriction in sections serves to fix the position of the valve tappet 17 between the first snap-in lug arrangement 6 and the second snap-in lug arrangement 7 in an emptying position C, see also 10 .
  • the bulges 7 ′ are also arranged, at least in sections, in a plane normal to the longitudinal axis 2 .
  • the three bulges 7 ′ are arranged symmetrically at an angular distance of 120° from one another, the angular distance being measured around the longitudinal axis 2 .
  • the bulges 6' of the first snap-in lug arrangement 6 and the bulges 7' of the second snap-in lug arrangement 7 are arranged congruently, as viewed along the third drilling section 10 or the longitudinal axis 2.
  • valve tappet 17 has the at least partially conical thickening 42 directed toward the end surface 21 on the gas container side, with which a gas-tight connection can be formed along a circular sealing edge 16 of the second bore section 9, in which the valve tappet 17 is movably mounted.
  • the thickening 42 of the valve tappet 17, which is conically extending at least in sections, has a maximum diameter 43 in an end region pointing towards the end surface 21 on the gas container side, which is larger than the diameter through the first snap-in nose arrangement 6 trained sectional constriction. Furthermore, the maximum diameter 43 is also larger than the diameter of the further narrowing in sections formed by the second snap-in lug arrangement 7 . This ensures both secure guidance and holding or fixing of the valve tappet 17 in the filling position A, a closed position B and the emptying position C.
  • the maximum diameter 43 is smaller than a diameter 13 of an opening cross section 15 of the third bore section 10 in order to ensure problem-free movement of the valve stem 17 as well as an unimpeded flow of gas between the valve stem 17 and an inner wall of the third drilling section 10 .
  • valve tappet 17 should be made of a harder material than the valve body 1 or the valve body 1 should be made of a harder material than the valve tappet 17, which is why the valve tappet 17 is made of metal in the illustrated embodiment , preferably steel or stainless steel or brass, or is made of ceramic, while the valve body 1 is made of a high-temperature-resistant plastic, in particular polyethersulfone (PES) or polysulfone (PSU) or polyetheretherketone (PEEK) or polyphenylene sulfide (PPS) or polyphenylsulfone (PPSU) or Polyetherimide (PEI) is formed.
  • PES polyethersulfone
  • PSU polysulfone
  • PEEK polyetheretherketone
  • PPS polyphenylene sulfide
  • PPSU polyphenylsulfone
  • PEI Polyetherimide
  • the Figures 3 to 11 show a gas tank 24 designed with the valve 39 explained above, the gas tank 24 comprising a base body 26 with the base body head 27 having the opening 28 .
  • the base body 26 forms, at least in sections, an inner volume for receiving gas 29 .
  • the valve body 1 is pushed with its fastening area 19 into the base body head 27, whereby at least in the area of the base body head 27 the fastening area 19 closing the opening 28 of the Valve body 1 is arranged such that the stop surface 14 of the valve body 1 rests on an end face 30 of the head 27 of the base body.
  • valve body 1 in a first step the valve body 1 is pushed or pressed through the opening 28 into the base body head 27 until the stop face 14 of the valve body 1 rests on the end face 30 of the base body head 27 .
  • figure 5 shows the finished, empty gas container 24, the valve body 1 with the base body head 27 being formed gas-tight by means of compression around the sealing lug 5 of the double groove 4.
  • the connection area 18 of the valve body 1 protrudes outwards from the base body head 27 , the longitudinal axis 2 of the valve body 1 being aligned with a longitudinal axis 25 of the gas container 24 , ie in a line.
  • the valve lifter 17 is moved based on a pressure difference inside the base body 26 of the gas tank 24 to atmospheric pressure, according to the drawn flow lines.
  • the intake valve 31 according to FIG 8 a pin 32, which is held in the inlet valve 31 by means of a threaded connection 35, and a sealing element 38, which is arranged in a groove arranged in a gas container receptacle 36, the gas container receptacle 36 having a diameter adapted to the connection area 18 of the valve body 1 and a stop surface 37 for limiting the path of travel of the inlet valve 31 via the connection area 18 .
  • the pin 32 has an inlet bore 33 and a transverse slot 34 for the flow of the gas 29 from the gas container 24.
  • the sealing element 38 is preferably an O-ring.
  • the gas tank receptacle 36 of the inlet valve 31 is arranged over the connection area 18 of the gas tank 24 in such a way that the longitudinal axis 2 of the valve body 1 is aligned with a longitudinal axis of the pin 32 or a longitudinal axis of the gas tank receptacle 36, with the pin 32 presses on the valve tappet 17 so that it is displaced in the direction of the end face 21 on the gas container side.
  • the maximum displacement of the inlet valve 31 via the connection area 18 of the gas tank 24 is limited with the aid of the stop surface 37 of the gas tank receptacle 36, see FIG 10 , wherein the sealing element 38 rests against the lateral surface of the connection area 18, so that any escape of gas is avoided.
  • the stop surface 37 of the gas tank receptacle 36 is in contact with the connection-side end surface 20 of the valve body 1 .
  • valve tappet 17 remains in the emptying position C, so that any refilling of the gas tank 24 is not possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP21166300.0A 2021-03-31 2021-03-31 Ventil zum verschliessen eines gasbehälters Active EP4067726B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES21166300T ES2956520T3 (es) 2021-03-31 2021-03-31 Válvula para cerrar un recipiente de gas
EP21166300.0A EP4067726B1 (de) 2021-03-31 2021-03-31 Ventil zum verschliessen eines gasbehälters
CN202280024385.8A CN117063010A (zh) 2021-03-31 2022-03-29 用于封闭气体容器的阀
AU2022251836A AU2022251836B2 (en) 2021-03-31 2022-03-29 Valve for closing a gas container
PCT/EP2022/058218 WO2022207611A1 (de) 2021-03-31 2022-03-29 Ventil zum verschliessen eines gasbehälters
US18/279,929 US20240151365A1 (en) 2021-03-31 2022-03-29 Valve for closing a gas container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21166300.0A EP4067726B1 (de) 2021-03-31 2021-03-31 Ventil zum verschliessen eines gasbehälters

Publications (2)

Publication Number Publication Date
EP4067726A1 EP4067726A1 (de) 2022-10-05
EP4067726B1 true EP4067726B1 (de) 2023-08-09

Family

ID=75339546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21166300.0A Active EP4067726B1 (de) 2021-03-31 2021-03-31 Ventil zum verschliessen eines gasbehälters

Country Status (6)

Country Link
US (1) US20240151365A1 (zh)
EP (1) EP4067726B1 (zh)
CN (1) CN117063010A (zh)
AU (1) AU2022251836B2 (zh)
ES (1) ES2956520T3 (zh)
WO (1) WO2022207611A1 (zh)

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CH596493A5 (en) * 1976-03-02 1978-03-15 Ziegler Gewinde Ag Compressed gas cartridge for domestic use
GB9112050D0 (en) * 1991-06-05 1991-07-24 Shell Int Research Valve for liquefied gas bottle
GB9310609D0 (en) * 1993-05-22 1993-07-07 Moss Plastic Parts Ltd An article including at least one projection
DE19609257C2 (de) * 1996-02-28 1998-08-20 Mannesmann Ag Rohrverbindung
DE59712528D1 (de) * 1997-03-26 2006-01-26 Tender Ag Zug Druckgaskapsel
RU2161282C1 (ru) * 1999-05-13 2000-12-27 Багнюков Сергей Анатольевич Газовый баллончик и способ его заправки
DE19955879B4 (de) * 1999-11-20 2004-12-02 Alfmeier Präzision AG Baugruppen und Systemlösungen Füllstandsbegrenzungsventil
FR2838074B1 (fr) * 2002-04-08 2004-09-17 Prospection & Inventions Raccord monobloc pour appareil de fixation a gaz comprime et cartouche de gaz comprime
HU2530U (en) * 2002-10-28 2003-05-28 Liss Patrongyarto Toeltoe Es F Valve for non-refillable cartridge
KR20040071484A (ko) * 2003-02-06 2004-08-12 장준혁 에어로졸용기의 과압안전장치
SE526165C2 (sv) * 2003-04-23 2005-07-19 Hugo Nilsson Självstängande utmatningsanordning för vätska
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Also Published As

Publication number Publication date
ES2956520T3 (es) 2023-12-22
WO2022207611A1 (de) 2022-10-06
EP4067726A1 (de) 2022-10-05
US20240151365A1 (en) 2024-05-09
AU2022251836A1 (en) 2023-10-12
AU2022251836B2 (en) 2023-11-23
CN117063010A (zh) 2023-11-14

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