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LU504746B1 - Device for gas cylinder with shut-off valve, refill valve and pressure reducer in the gas cylinder - Google Patents

Device for gas cylinder with shut-off valve, refill valve and pressure reducer in the gas cylinder Download PDF

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Publication number
LU504746B1
LU504746B1 LU504746A LU504746A LU504746B1 LU 504746 B1 LU504746 B1 LU 504746B1 LU 504746 A LU504746 A LU 504746A LU 504746 A LU504746 A LU 504746A LU 504746 B1 LU504746 B1 LU 504746B1
Authority
LU
Luxembourg
Prior art keywords
gas
refill
valve
shut
passage
Prior art date
Application number
LU504746A
Other languages
French (fr)
Inventor
Stephan Sellen
Philippe Schmitz
Paul Muzzo
Original Assignee
Rotarex S A
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 Rotarex S A filed Critical Rotarex S A
Priority to LU504746A priority Critical patent/LU504746B1/en
Priority to PCT/EP2024/070012 priority patent/WO2025016973A1/en
Application granted granted Critical
Publication of LU504746B1 publication Critical patent/LU504746B1/en

Links

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
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • 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
    • F17C2205/0323—Valves
    • F17C2205/0329—Valves manually actuated
    • 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
    • F17C2205/0338—Pressure 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
    • 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
    • F17C2205/0385—Constructional details of valves, regulators in blocks or units
    • 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
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0391—Arrangement of valves, regulators, filters inside the pressure vessel
    • 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
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • 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
    • F17C2223/038—Subatmospheric pressure
    • 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
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/018—Adapting dimensions
    • 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
    • F17C2270/05—Applications for industrial use
    • F17C2270/0518—Semiconductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)

Abstract

The invention is directed to a device (102) for a gas cylinder, comprising a body (104), a gas inlet port (107) in a male threaded portion (104.1) of the body (104), a gas outlet port (108); a gas refill port (112); a gas delivery passage (120) interconnecting the gas inlet port (107) with the gas outlet port (108); and a gas refill passage (122) interconnecting the gas refill port (112) to a gas refill outlet (124); a shut-off valve (118); a refill valve (114); and a pressure regulating device (106) fluidly connected to the gas inlet port (107) at the male threaded portion (104.1), and configured for being inserted into the gas cylinder; wherein the gas refill outlet (124) is formed in the male threaded portion (104.1) and opens out to the ambient of the device, in the gas cylinder when the device (102) is mounted thereon.

Description

Description
DEVICE FOR GAS CYLINDER WITH SHUT-OFF VALVE, REFILL VALVE AND
PRESSURE REDUCER IN THE GAS CYLINDER
Technical field 10001] The invention is directed to the field of devices for gas cylinders, in particular for gas cylinders containing ultra-pure and dangerous gases like those used in the semi-conductor industry.
Background art
[0002] Prior art patent document published WO 2022/112442 A1 discloses a cylindrically shaped sub-atmospheric pressure reducer thal is intended to be inserted through the neck of a gas cylinder for being located therein in operation. To that end, the cylindrically shaped sub-atmospheric pressure reducer is attached and fluidly connected to a valve body comprising a male thread to be engaged with the female thread of the neck of the gas cylinder and housing various devices such as a shut-off valve and a refill valve. That teaching fails however to provide details about the integration of these devices in the device body. 10003} There is also a need fo provide a complete gas cylinder device with several functions such as a pressure reducing function, a shut-off function, and a refill valve function, with a design as compact as possible.
Summary of invention
Technical Problem 100041 The invention has for technical problem to overcome at least one of the drawbacks of the above-mentioned prior art, more particulariy to provide a multifunction device for gas cylinders that is particularly compact and optimized in construction.
Technical solution 10005] The invention is directed to a device for a gas cylinder, comprising: a body comprising a male threaded portion configured for engaging with a collar of the gas cylinder, a gas inlet port in said male threaded portion, a gas outlet port; a gas refill port; a gas delivery passage interconnecting the gas inlet port with the gas outlet port; and a gas refill passage interconnecting the gas refill port to a gas refill outlet; a shut-off valve for the gas delivery passage, housed in the body; a refill valve for the gas refill passage, housed in the main body: and a pressure regulaling device fluidly connected to the gas inlet port at the male threaded portion, and configured for being inserted into the gas cylinder; wherein the gas refill outlet is formed in the male threaded portion and opens out to the ambient of the device, in the gas cylinder when the device is mounted thereon. 10606] The pressure reducer is advantageously of the sub-atmospheric type. 10007] The pressure reducer is advaniageously attached to the gas iniet port by welding.
[0008] The body is advantageously made of stainless steel.
[0009] According to a preferred embodiment, the gas delivery passage comprises a portion that extends along a longitudinal axis of the device, from the gas inlet port to the shut-off valve. 10010] According to a preferred embodiment, the shut-off valve comprises: a shut-off seat that surrounds and connects directly with the first portion of the gas delivery passage; and a shut-off shutter movable on a downstream side of the shut-off seat and configured for selectively contacting said shui- off seal.
[0011] According to a preferred embodiment, the gas outlet port extends perpendicularly to the longitudinal axis at a level, along said longitudinal axis, that is lower than the shut-off seal, the gas delivery passage comprising a portion that is inclined and that interconnects a chamber housing the shut-off shutter with the gas outlet port. 10012] According to a preferred embodiment, the gas delivery passage comprises a portion that extends transversally and interconnects the inclined portion of said gas delivery passage directly with the gas outlet port.
[0013] According to a preferred embodiment, the gas refill passage comprises a portion that extends longitudinally and off-set to the longitudinal portion of the gas delivery passage, from the gas refill outlet to the refill valve. 10014] According to a preferred embodiment, the refill valve comprises: a refill seat that connects perpendicularly to the longitudinal and off-set portion of the gas refill passage; and a refill shutter movable on an upstream side of the refill seat and configured for selectively contacting said refill seat.
10015] According to a preferred embodiment, the gas refill passage comprises a portion that is transversal and interconnects the longitudinal and off-set portion of said gas refill passage with a chamber housing the refilf shutter. 10016] According to a preferred embodiment, the transversal portion of the gas refill passage is located, relative to the longitudinal axis, below a chamber housing the shut-off valve.
[0017] According to a preferred embodiment, the gas refill port extends transversally to the longitudinal axis and perpendicularly to the refill valve, the gas refill passage comprising a portion that is inclined and interconnecting a chamber housing the refill shutter with the gas refill port.
[0018] According to a preferred embodiment, the gas outlet port is opposed to the refill valve. 10019] According to a preferred embodiment, the gas inlet port is formed by a tubular portion of the body extending longitudinally from the male threaded portion of said body, the gas refill outlet being located laterally adjacent to said tubular portion. (00201 The different portions of the gas delivery passage and of the gas refill passage are advantageously straight drillings.
Advantages of the invention 10021] The invention is particularly interesting in that it provides an optimized and compact arrangement of various functions of the device. The arrangement is advantageous in that the amount of material of the body is optimized by concentrating the bores io be machined therein for the gas outlet port, the gas refill port, the refill valve and/or the shut-off valve. Most of the portions of the gas delivery passage and the gas refill passages are longitudinal or transversal, thereby facilitating their drilling. Only two portions of said passages are optionally inclined, these portions being however short in length and with inclination angles relative to their reference longitudinal or transversal direction that are inferior to 45°.
Brief description of the drawings 10022] Fig. 1 is a perspective of a device for gas cylinder according to a first embodiment of the invention. 10023] Fig. 2 is a layout of the architecture of the device of Fig. 1.
10024] Fig. 3 is as longitudinal sectional view of a device for gas cylinder according to a second embodiment of the invention. 10025] Fig. 4 is a transversal sectional view of the device of Fig. 3.
Description of an embodiment 10026] Figure 1 is a perspective representation of a device for a gas cylinder, according to a first embodiment of the invention. 10027] The device 2 comprises a body 4 provided with a male thread, for instance a conical one, configured for engaging with a female thread of a neck of a gas cylinder. Such male and female thread on devices for gas cylinder and on gas cylinders are as such well-known. The device 2 further comprises a pressure reducer 5 being for instance oylindrically-shaped and attached and fluidiy connected to a portion of the body 4 that is located inside the gas cylinder when said body 4 is engaged with a neck of the gas cylinder. The device 2 further comprises a gas outlet 8 whose flow is commanded by a shut-off valve not visible in figure 1, however actuated by the pneumatic actuator 10. The device 2 further comprises a gas refill port 12 and a refill valve 14 which selectively opens or close a refill gas passage between the gas refill port 12 and a gas refill outlet in the portion of the body 4 that is located inside the gas cylinder when said body 4 is engaged with a neck of the gas cylinder. 10028] The pressure reducer 5 can be according to WO 2022/112442 AT, the content of which being incorporated by reference. 10029] Figure 2 is an architectural layout of the device 2 of Fig. 1. 10030} We can see the pressure reducer § located inside the gas cylinder, the shut- off valve 10 commanding the gas flow to the gas outlet 8, as well as the gas refill port 12 and the refill valve 14 commanding the refill flow from the gas refill port 12 towards the gas cylinder.
[0031] One or more filters 17 can be provided upstream or within the pressure reducer 6. 10032} The above device will be described more in details in relation with a second embodiment of the invention, where the pneumatic actuator 10 is replaced by a manual wheel, all the rest being identical.
10033] Figure 3 is a longitudinal sectional view of that second embodiment of the device for gas cylinder and Figure 4 is a transversal sectional view of the device. The reference signs of the first embodiment are used in the second embodiment for designating the same or corresponding elements, these numbers being however incremented by 100. It is also referred to the description these elements of the first embodiment for the second embodiment and vice versa. 10034} The device 102 comprises a body 104 with a lower part 104.1 provided with a male thread for engaging with a female thread of a neck of a gas cylinder, as in the first embodiment. The cylindrically-shaped pressure reducer 106 is attached to the lower part 104.1 of the body 104 and fluidly connected to a gas inlet port 107 at said body 104. À gas delivery passage 120 fluidly interconnects the gas inlet port 107 on the body 104 to the gas outlet port 108. The gas delivery passage 120 comprises a longitudinally elongate portion 120.1 extending centrally along the longitudinal axis of the device 102 to the shut-off valve 118 at a top portion of the body 104. The shut-off valve 118 comprises a shut-off seat 118.1 that is advantageously directly formed in the body and that surrounds the longitudinally elongate portion 120.1 of the gas delivery passage 120, and a shut-off shutter 118.2 is movable in a chamber downstream of the shut-off seat 118.1 and configured for selectively contacting the shut-off seat 118.1 so as to selectively shut-off the gas delivery passage 120. The gas delivery passage 120 further comprises a second and inclined portion 120.2 that is inclined and thai interconnects the chamber housing the shut-off shutter 118.2 with the gas outlet port 108. The gas delivery passage 120 can further comprise a third and transversal portion 120.3 being transversal and interconnecting the second and inclined portion 120.2 with the outlet port 108. 10035} As this is apparent, the pressure reducer 106 can be provided with one or several fillers 117.1 and 117.2. The filter 117.1 is located downstream of the pressure reducer 106 and the filter 117.2 is locater upstream.
[0036] As this is apparent, the device 102 further comprises a gas refill outlet 124 on the lower part 104.1 of the body 104, on an area of said lower part 104.1 that is in direct contact with the interior of the gas cylinder when the device is mounied thereon. That area is directly adjacent the tubular-shaped gas inlet port 107. À gas refill passage 122 is formed in the body 104 and fluidly interconnects the gas refill port 112 (not visible in Fig. 3 but well in Fig. 4) with the gas refill outlet 124. The gas refill passage 122 comprises a first and longitudinal and off-set portion 122.1 that extends longitudinally but in an off-set manner from said longitudinal axis and the longitudinal portion 120.1 of the gas delivery passage 120. The gas refill passage 122 further comprises a second and transversal portion 122.2 fluidly interconnecting the longitudinal portion 122.1 to the refill valve 114. The latter comprises a refill seat 114.1 surrounding the second and transversal portion 122.2 of the gas refill passage and advantageously integrally formed in the body 104.
The refill valve 114 further comprises a refill shutier 114.2 movable in a chamber formed in the body 104 directly upstream (in a gas refill direction from the gas refill port to the gas refill outlet port) of the refill seat 114.1. The refill shutter 114.2 is configured for selectively contacting in a gas tight fashion the refill seat 144.1 so as to selectively close the gas refill passage 122. The refill valve 114 is oriented transversally, advantageously perpendicularly to the longitudinal axis, meaning that the refill seat is perpendicular to that transversal direction and that the refill shutier 114.2 is movable along that transversal direction. The gas refill passage 122 can further comprise a third and inclined portion 122.3 (visible in Fig. 4 only) fluidly interconnecting the chamber housing the refill shutter 114.2 with the gas refill port 112. That third and inclined portion 122.3 of the gas refill passage 122 opens out laterally in the chamber Le., radially external to the refill shutter 114.2. The gas refill passage 122 can further comprise a fourth and transversal portion 122.4 extending transversally in the body 104 and perpendicularly to the second transversal portion 122.2 and connecting directly to the gas refill port 112 and to the third and inclined portion 122.3 of the gas refill passage 120.
[0037] As this is apparent in Fig. 3, the first and longitudinal portion 122.1 of the gas refill passage 122 terminates directly below the chamber of the shut-off valve 118. Also, the third and transversal portion 122.3 of the gas refill passage 122 is located below the bottom of the chamber of the shut-off valve 118, corresponding to the shut-off seat 118.1. This arrangement allows the chamber housing the refill valve 114 to have its bottom,
corresponding to the refill seat 114.1, located transversally close to the chamber housing the shut-off valve 118. The third and inclined portion 122.3 of the gas refill passage 122, by being located below the chamber housing the shut-off valve 118, does not interfere with said chamber. 10038} As this is also apparent in Figs. 3 and À, the gas outlet port 108 can be located at approximately at the same level or height, relative to the longitudinal direction, as the gas refill portion 112 and the refill valve 114.
This optimizes the material of the body. This arrangement is achieved thanks to the second and inclined portion 120.2 of the gas delivery passage 120, which allows the gas outlet port 108 to be longitudinally off-set relative to the bottom of the chamber housing the shut-off valve 118.

Claims (12)

Claims
1. À device (2; 102) for a gas cylinder, comprising: a body (4; 104) comprising: a male threaded portion (104.1) configured for engaging with a collar of the gas cylinder, a gas inlet port (107) in said male threaded portion {104.1}, a gas outlet port (8; 108}; a gas refill port (12; 112); a gas delivery passage (120) interconnecting the gas inlet port (107) with the gas outlet port (8; 108); and a gas refill passage (122) interconnecting the gas refill port (12; 112) to a gas refill outlet (124); a shut-off valve (118) for the gas delivery passage (120), housed in the body (4; 104): a refill valve (14; 114) for the gas refill passage (122), housed in the body (4: 104); and a pressure regulating device (6; 106) fluidly connected to the gas inlet port (107) at the male threaded portion (104.1), and configured for being inserted into the gas cylinder; characterized in that the gas refill outlet (124) is formed in the male threaded portion (104.1) and opens out to the ambient of the device, in the gas cylinder when the device (2; 102) is mounied thereon.
2. The device (2; 102) of claim 1, wherein the gas delivery passage (120) comprises a portion (120.1) that extends along a longitudinal axis of the device, from the gas inlet port (107) to the shut-off valve (118).
3. The device (2; 102) of claim 2, wherein the shut-off valve (118) comprises: a shut-off seat (118.1) that surrounds and connects directly with the longitudinal portion (120.1) of the gas delivery passage (120); and a shut-off shutter (118.2) movabie on a downstream side of the shut-off seat (118.1) and configured for selectively contacting said shut-off seat (118.1).
4. The device (2; 102) of claim 3, wherein the gas outlet port (8; 108} extends perpendicularly to the longitudinal axis at a level, along said longitudinal axis, that is lower than the shut-off seat (118.1), the gas delivery passage (120) comprising a portion (120.2) that is inclined and that interconnects a chamber housing the shut- off shutter (118.2) with the gas outlet port (8; 108).
5. The device (2; 102) of claim 4, wherein the gas delivery passage (120) comprises a portion (120.3) that extends transversally and interconnects the inclined portion (120.2) of said gas delivery passage directly with the gas outlet port (8; 108).
6. The device (2; 102) of one of claims 2 to 5, wherein the gas refill passage (122) comprises a portion (122.1) that extends longitudinally and off-set to the longitudinal portion (120.1) of the gas delivery passage (120), from the gas refill outlet (124) to the refill valve (14; 114).
7. The device (2; 102) of claim 6, wherein the refill valve (14; 114) comprises: a refilt seat (114.1) that connects perpendicularly to the longitudinal portion (122.1) of the gas refill passage (122); and a refill shutter (114.2) movable on an upstream side of the refill seat (114.1) and configured for selectively contacting said refill seat (114.1).
8. The device (2; 102) of claim 7, wherein the gas refill passage (122) comprises a portion (120.2) that is transversal and interconnects the longitudinal and off-set partion (122.1) of said gas refill passage (122) with a chamber housing the refill shutter (114.2).
9. The device (2; 102) of claim 8, wherein the transversal portion (122.2) of the gas refill passage (122) is located, relative to the longitudinal axis, below a chamber housing the shut-off valve (118).
10. The device (2; 102) of any one of claims 7 to 9, wherein the gas refill port (12; 112) extends transversally to the longitudinal axis and perpendicularly to the refill valve (14; 114), the gas refill passage (122) comprising a portion (122.3) that is inclined and interconnects a chamber housing the refill shutter (114.2) with the gas refill port (12; 112).
tri LU504746 11, The device (2; 102) of any one of claims 1 to 10, wherein the gas outlet port (8; 108) is opposed to the refill valve (14; 114).
12. The device (2; 102) of any one of claims 1 to 11, wherein the gas inlet port (107) is formed by a tubular portion of the body (4; 104) extending longitudinally from the male threaded portion (104.1) of said body, the gas refill outlet (124) being located laterally adjacent to said tubular portion.
LU504746A 2023-07-14 2023-07-14 Device for gas cylinder with shut-off valve, refill valve and pressure reducer in the gas cylinder LU504746B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
LU504746A LU504746B1 (en) 2023-07-14 2023-07-14 Device for gas cylinder with shut-off valve, refill valve and pressure reducer in the gas cylinder
PCT/EP2024/070012 WO2025016973A1 (en) 2023-07-14 2024-07-15 Device for gas cylinder with shut-off valve, refill valve and pressure reducer in the gas cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU504746A LU504746B1 (en) 2023-07-14 2023-07-14 Device for gas cylinder with shut-off valve, refill valve and pressure reducer in the gas cylinder

Publications (1)

Publication Number Publication Date
LU504746B1 true LU504746B1 (en) 2025-01-14

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WO (1) WO2025016973A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6257000B1 (en) * 2000-03-22 2001-07-10 Luping Wang Fluid storage and dispensing system featuring interiorly disposed and exteriorly adjustable regulator for high flow dispensing of gas
US6910602B2 (en) * 2001-11-30 2005-06-28 Taiyo Nippon Sanso Corporation Container valve
EP1534991B1 (en) * 2002-07-01 2009-09-16 Praxair Technology, Inc. Multiple regulator vacuum delivery valve assembly
US20170122496A1 (en) * 2014-06-13 2017-05-04 Entegris, Inc. Adsorbent-based pressure stabilization of pressure-regulated fluid storage and dispensing vessels
WO2022112442A2 (en) 2020-11-25 2022-06-02 Rotarex S.A. Cylindrical sub-atmospheric pressure regulating device for insertion into a gas cylinder
WO2022192260A1 (en) * 2021-03-09 2022-09-15 Entegris, Inc. Gas storage and dispensing container and a method of dispensing therefrom

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6257000B1 (en) * 2000-03-22 2001-07-10 Luping Wang Fluid storage and dispensing system featuring interiorly disposed and exteriorly adjustable regulator for high flow dispensing of gas
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