EP3088791B1 - Perforierbare kartusche für flüssiggas ausgerüstet mit einer sicherheitseinrichtung - Google Patents

Perforierbare kartusche für flüssiggas ausgerüstet mit einer sicherheitseinrichtung Download PDF

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Publication number
EP3088791B1
EP3088791B1 EP16162368.1A EP16162368A EP3088791B1 EP 3088791 B1 EP3088791 B1 EP 3088791B1 EP 16162368 A EP16162368 A EP 16162368A EP 3088791 B1 EP3088791 B1 EP 3088791B1
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EP
European Patent Office
Prior art keywords
cartridge
safety device
perforable
support
radial arms
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
EP16162368.1A
Other languages
English (en)
French (fr)
Other versions
EP3088791B8 (de
EP3088791A1 (de
Inventor
Marco Raviolo
Enrico Pozzo
Aldo Nicolino
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.)
POZZO, ENRICO
RAVIOLO, MARCO
Original Assignee
Individual
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Publication date
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Application granted granted Critical
Publication of EP3088791B1 publication Critical patent/EP3088791B1/de
Publication of EP3088791B8 publication Critical patent/EP3088791B8/de
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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
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • 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
    • F17C13/005—Details of vessels or of the filling or discharging of vessels for medium-size and small storage vessels not under 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • 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
    • 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
    • F17C2205/0311—Closure means
    • F17C2205/032—Closure means pierceable
    • 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
    • F17C2205/0332—Safety valves or pressure relief 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
    • F17C2205/0388—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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • 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
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • 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
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • 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
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/036—Avoiding leaks
    • 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
    • F17C2270/0709—Camping gas

Definitions

  • the present invention regards cartridges for liquefied gas under pressure of the type for example utilisable for camping stoves and lanterns and the like.
  • cartridges consist in a generally cylindrical casing with a lateral wall and an upper wall having a central perforable portion.
  • such cartridges must be internally provided with a safety device having the function of limiting gas leakage, following the perforation of the gas cylinder, should the user apparatus be removed.
  • the safety device for the perforable cartridges in question consists in a valve with a spring check valve carried by a support fixed to the upper wall of the cartridge around the perforable portion thereof.
  • Such support is in this case constituted by a drinking-glass-shaped element whose upper edge is welded to the wall of the cartridge. The welding implies additional difficulties and costs in the cartridge manufacturing process.
  • a different solution described and illustrated in document EP-1406041A1 , provides for a sealing facing the perforable part and biased against the latter by an elastic element formed by a metal strip that has at least two support points directly against at least one inner wall of the cartridge.
  • This solution allows avoiding welding but causes some instability to the sealing, which is directly over-moulded on the metal strip. When using the cartridge, this instability could lead to the malfunctioning of the safety device.
  • a third solution known from document EP-2803897A1 and devised to overcome the drawbacks of the previous solutions, provides for an elastic ring engaged on an inner annular projection of the lateral wall of the cartridge and to which an elastic strip carrying the sealing is engaged, pressed around the perforable portion of the upper wall.
  • this solution however implies a certain degree of complication in terms of construction and assembly of the safety device in the cartridge.
  • the object of the invention is to overcome the aforementioned technical drawbacks of the known solutions, avoiding the need for welding and problems related to the instability of the safety device on the one hand and considerably facilitating the manufacture and assembly of the safety device in the cartridge on the other, thus reducing production costs.
  • this object is attained thanks to a cartridge for liquefied gas of the type defined in the pre-characterising part of claim 1, and generally corresponding to the prior art known from document EP-2803897A1 , whose distinctive characteristic lies in the fact that the spring is a helical compression spring and the support is formed in one piece with an array of rigid radial arms whose radially outer ends are engaged upon said inner annular projection of the lateral wall of the cartridge.
  • the aforementioned radially outer ends of the rigid radial arms are conveniently connected to each other by an integral peripheral ring, and such rigid radial arms are preferably arched with the convexity thereof facing towards the upper wall of the cartridge.
  • the cartridge for liquefied gas comprises a casing shaped to form a substantially cylindrical gas cylinder 1 and an upper wall 3 formed of one piece made of deep-drawn strip, and a bottom wall 4 fixed to the edge of the lateral wall 2 by crimping.
  • the upper wall 3 has, in an entirely usual fashion, a recessed central part 5 which is perforable due to the thrust-introduction of a perforator that gas-fuelled devices such as stoves, lanterns, heaters and other similar devices are conventionally provided with.
  • the lateral wall 2 is formed, in proximity of the upper wall 3, with an inner annular projection 6 which constitutes a perimeter peripheral support for a safety device indicated in its entirety with 7 and illustrated in larger detail in figures 2-4 .
  • the safety device 7 comprises a body made of moulded plastic material forming - in a single piece - an array of radial arms 8 (four of which are illustrated angularly equally spaced from each other in the example) centrally joined to a drinking-glass-shaped support 9 and whose radially outer ends are connected to each other by means of a peripheral ring 10.
  • the arms 8 are rigid, i.e. they are substantially undeformable under bending according to the axis of the safety device 7: for this purpose, they have a considerable axial thickness, clearly visible in figure 1 , and they are conveniently arched with the convexity thereof facing towards the upper wall 3 of the cartridge 1.
  • the support 9, which is drinking-glass-shaped and integrally formed with the radial arms 8 as mentioned, contains a helical compression spring 13 on which an obturator 14, also made of moulded plastic material rests, forming - in a single piece - a head 15 and a stem 16.
  • the head 15 is hollow and internally bears an o-ring seal 17 usually pressed, by the action of the helical spring 13, against the central perforable portion 5 of the cartridge 1.
  • the stem 16 extends in an axially slidable fashion through the support 9 and traverses, with a projecting end part 16a, the bottom wall 18 thereof. As better observable in figure 3 , such bottom wall 18 has a hole 19 delimited by elastically deformable portions 20 through which the projection 16a is adapted to be engaged irreversibly.
  • the rigidity of the radial arms 8 allows the obturator 14 to be pushed downwards, against the action of the helical spring 13, so as to allow the outflow of the gas. Should the device be removed, the helical spring 13 returns the obturator 14 against the upper wall 3, thus pressing the o-ring seal 17 around the edge of the perforation.
  • the safety device 7 can be inserted into the cartridge 1 in a manner that is equally simple and capable of ensuring, in use, maximum stability and precision to close the perforable portion 5 once again following the perforation thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (4)

  1. Perforierbare Kartusche für Flüssiggas, umfassend ein im Allgemeinen zylindrisches Gehäuse (1) mit einer seitlichen Wand (2) und einer oberen Wand (3) mit einem mittigen perforierbaren Abschnitt (5), wobei die Kartusche eine Sicherheitseinrichtung (7) mit einem Verschluss (14) enthält, der durch die Wirkung einer Feder (13), die von einer von einem inneren Ringvorsprung (6) der seitlichen Wand (2) der Kartusche getragenen Halterung (9) getragen wird, gegen den perforierbaren Abschnitt (5) vorgespannt ist, dadurch gekennzeichnet, dass die Feder eine Schraubendruckfeder (13) ist und die Halterung (9) einstückig mit einer Anordnung aus starren radialen Armen (8) ausgebildet ist, deren radial äußere Enden (11) mit dem inneren Ringvorsprung (6) der seitlichen Wand (2) der Kartusche in Eingriff stehen.
  2. Kartusche nach Anspruch 1, dadurch gekennzeichnet, dass die radial äußeren Enden (11) der starren radialen Arme (8) durch einen einstückigen Umfangsring (10) miteinander verbunden sind.
  3. Kartusche nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass die starren radialen Arme (8) gekrümmt sind, wobei ihre Konvexität der oberen Wand (3) der Kartusche zugewandt ist.
  4. Kartusche nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Verschluss (14) einen Kopf (15), der eine O-Ring-Dichtung (17) trägt, und einen Schaft (16) mit einem verbreiterten Ende (20) umfasst, die axial verschiebbar untrennbar mit der Halterung (9) in Eingriff stehen.
EP16162368.1A 2015-03-27 2016-03-24 Perforierbare kartusche für flüssiggas ausgerüstet mit einer sicherheitseinrichtung Active EP3088791B8 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO20150187 2015-03-27

Publications (3)

Publication Number Publication Date
EP3088791A1 EP3088791A1 (de) 2016-11-02
EP3088791B1 true EP3088791B1 (de) 2018-01-31
EP3088791B8 EP3088791B8 (de) 2018-05-16

Family

ID=53189984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16162368.1A Active EP3088791B8 (de) 2015-03-27 2016-03-24 Perforierbare kartusche für flüssiggas ausgerüstet mit einer sicherheitseinrichtung

Country Status (2)

Country Link
EP (1) EP3088791B8 (de)
ES (1) ES2664448T3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR20170100293A (el) * 2017-06-27 2019-03-20 IGM ΤΕΧΝΙΚΗ-ΕΜΠΟΡΙΚΗ ΕΤΑΙΡΕΙΑ ΠΕΡΙΟΡΙΣΜΕΝΗΣ ΕΥΘΥΝΗΣ με δ.τ."IGM ΕΠΕ" Στεφανη περιορισμου ροης υγραεριου απο φιαλιδιο αυξομειουμενης διαμετρου
IT202100014129A1 (it) * 2021-05-31 2022-12-01 Plein Air Int S R L Cartuccia di fluido in pressione

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2845456B1 (fr) 2002-10-03 2005-01-14 Guilbert Express Sa Dispositif de securite pour cartouche perforable
FR2901863B1 (fr) 2006-06-06 2008-08-22 Applic Des Gaz Soc Par Actions Cartouche de gaz combustible liquide
ITTO20130378A1 (it) 2013-05-13 2014-11-14 Campweld S R L Cartuccia perforabile per gas liquido con dispositivo di sicurezza

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3088791B8 (de) 2018-05-16
EP3088791A1 (de) 2016-11-02
ES2664448T3 (es) 2018-04-19

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