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WO2018130697A1 - Gas diffuser for a gas distributor vent - Google Patents

Gas diffuser for a gas distributor vent Download PDF

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Publication number
WO2018130697A1
WO2018130697A1 PCT/EP2018/050906 EP2018050906W WO2018130697A1 WO 2018130697 A1 WO2018130697 A1 WO 2018130697A1 EP 2018050906 W EP2018050906 W EP 2018050906W WO 2018130697 A1 WO2018130697 A1 WO 2018130697A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
diffuser
vent
gas diffuser
cover
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.)
Ceased
Application number
PCT/EP2018/050906
Other languages
French (fr)
Inventor
Philippe Cloutier
Enric Perrelle
Arnaud LECLERC
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.)
Dover Fueling Solutions UK Ltd
Original Assignee
Tokheim UK Ltd
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 Tokheim UK Ltd filed Critical Tokheim UK Ltd
Priority to EP18700304.1A priority Critical patent/EP3568629A1/en
Publication of WO2018130697A1 publication Critical patent/WO2018130697A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F17C13/06—Closures, e.g. cap, breakable member
    • 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
    • F17C2201/0147—Shape complex
    • F17C2201/0161—Honeycomb
    • 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
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0376—Dispensing pistols
    • 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
    • F17C2221/012—Hydrogen
    • 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
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • 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
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • F17C2260/021—Avoiding over pressurising
    • 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/065—Fluid distribution for refuelling vehicle fuel tanks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Definitions

  • the present invention relates to a gas diffuser for a vehicle gas distributor vent and in particular a distributor of CNG gas (Natural Gas for Vehicles), as well as a gas distributor comprising such a diffuser.
  • a CNG gas distributor conventionally comprises a gas distribution circuit in which the gas is compressed to about 250 bar.
  • CNG or Compressed Natural Gas (CNG) is essentially composed of methane.
  • the gas distribution circuit is connected on the one hand to a gas supply tank and on the other hand to a gun for delivering pressurized gas into a vehicle tank.
  • the gun includes a pressure gas evacuation circuit connected to a gas evacuation hose itself connected to a discharge circuit provided in the distributor.
  • This evacuation circuit is connected to a vent opening to the atmosphere in order to evacuate this excess pressure of gas in the atmosphere, above the gas distributor.
  • connection of the vent to the gas distribution circuit also allows manual bleeding of the gas distribution circuit.
  • the present invention proposes to overcome the disadvantage mentioned above by providing a gas distributor vent gas diffuser to prevent water from entering the interior of the vent, thus avoiding its obstruction.
  • the invention relates to a gas diffuser for a gas distributor vent comprising a conduit for evacuating gases.
  • the conduit is connected to a gas discharge circuit at its lower end and includes an outlet at its upper end connected to the gas diffuser.
  • the gas diffuser comprises:
  • a lid comprising a solid central part arranged facing the outlet of the vent duct to protect the interior of the duct from water coming from the outside of the diffuser, said lid comprising at least one diffusion orifice remote from the diffuser; central portion and communicating with the interior of the duct to diffuse the gas outside the vent, and
  • a groove surrounding the cover for collecting water coming from outside the gas diffuser said groove being delimited by an external peripheral wall traversed by at least one evacuation channel for evacuating water from the groove to the outside; outside the gas diffuser.
  • the invention thus provides a gas distributor vent gas diffuser to prevent water from entering the vent, thereby avoiding its obstruction.
  • This gas diffuser also limits the penetration of dust and insects into the vent.
  • the gas diffuser may include the following features taken individually or in combination.
  • the central portion of the cover has a surface of dimension greater than that of the outlet of the duct of the vent.
  • the outer peripheral wall of the gas diffuser extends beyond the diffusion holes in a direction A opposite to the duct of the vent when the gas diffuser is mounted on the vent.
  • the direction A corresponds to the vertical direction.
  • the gas flow is thus directed vertically, strongly limiting its horizontal diffusion.
  • the safety around the gas distributor is then optimized.
  • the invention thus makes it possible to solve a safety problem in addition to the problem of penetration of water into the vent.
  • the lid comprises an internal channel having a first channel portion fitted into the vent duct and a second channel portion communicating with the first channel portion at its lower end and closed by the central portion of the lid. at its upper end.
  • the first channel portion of the inner channel of the lid is delimited by a side wall through which a plurality of diffusion orifices connect the internal channel to the outside of the lid.
  • the orifices of diffusions are arranged in the vicinity of the central part of the lid.
  • the orifices of diffusions are arranged facing the outer peripheral wall of the gas diffuser.
  • the gas diffuser is formed of two separate parts, the lid on the one hand and a diffuser body on the other hand comprising a central orifice for receiving the lid.
  • the groove is delimited by the side wall of the cover and by the outer peripheral wall of the gas diffuser forming the wall of the diffuser body.
  • the diffuser body comprises two water discharge channels diametrically opposite one another, the two water discharge channels being in communication with the bottom of the throat .
  • the gas diffuser comprises a fixing means for fixing the gas diffuser on the tube of the vent.
  • the fixing means comprises two diametrically opposed openings opening from the side wall of the lid, two diametrically opposed openings opening out from the outer peripheral wall of the diffuser body and a pin passing through the openings, and two diametrically opposite openings provided in the conduit of the vent.
  • the invention also relates to a gas distributor comprising a vent comprising a duct for evacuating gases to the atmosphere.
  • the conduit is connected to a gas discharge circuit at its lower end and includes an outlet at its upper end connected to a gas diffuser.
  • the gas diffuser is as defined above.
  • the invention thus provides a gas diffuser for a gas distributor CNG intended to be fixed at the end of a vent allowing both to prevent water from entering the interior of the vent while allowing a vertical ejection of the gas to limit its propagation zone and in particular its propagation in the horizontal direction.
  • the gas diffuser can also be used for other gas distributors such as dihydrogen distributors, for example.
  • gas distributors such as dihydrogen distributors, for example.
  • FIG. 2 shows schematically a diffuser mounted on a vent duct
  • FIG. 4 shows a sectional and exploded view of the vent.
  • FIG. 1 represents a gas distributor 3, in particular of CNG, comprising a gas distribution assembly or hydraulic circuit connected to a gas tank and to a hose equipped with a gun for delivering gas into a vehicle tank.
  • the gas distributor 3 also comprises a gas evacuation circuit 24 connected to a vent 2 comprising a duct 4 for evacuating gases.
  • the duct 4 is connected to the gas evacuation circuit 24 at its lower end 25 and to a gas diffuser 1 at its upper end 5.
  • the duct 4 vent 2 conventionally has a circular section and is crossed by a channel opening from the upper end 5 of the duct 4 by an outlet 26.
  • the gas diffuser 1 comprises a lid 6 comprising a central portion 7 disposed facing the duct 4 of the vent 2 to protect the inside of the duct 4 from water coming from outside of the broadcaster.
  • the central portion 7 is full and not perforated. It is distant from the upper end 5 of the duct 4 vent 2 to avoid clogging the outlet 26 of the duct 4 of the vent 2.
  • the central portion 7 is positioned opposite the outlet 26 of the duct 4.
  • the gas diffuser 1 may be metal or plastic, for example.
  • the surface of the central portion 7 of the cover 6 has a larger dimension than that of the outlet 26 of the duct 4 of the vent 2, making it possible to optimize the protection of the vent duct 4 against the penetration of water.
  • the lid 6 comprises at least one diffusion orifice 8 remote from the central portion 7 and communicating with the interior of the duct 4 to diffuse the gas outside the vent 2. More precisely, the diffusion orifice 8 communicates with the outlet 26 of the duct 4.
  • the gas diffuser 1 has a groove 9 surrounding the cover 6 to collect water from outside the gas diffuser 1.
  • the groove 9 is delimited by an outer peripheral wall 10 traversed by at least one evacuation channel 1 1 for discharging the water from the groove 9 towards the outside of the gas diffuser 1.
  • the outer peripheral wall 10 of the gas diffuser 1 extends beyond the diffusion holes 8 in a direction A opposite the duct 4 of the vent 2 when the gas diffuser 1 is mounted on the vent 2.
  • the outer peripheral wall 10 of the gas diffuser 1 extends beyond the diffusion holes 8 over a distance of at least 1 mm.
  • the outer peripheral wall 10 of the gas diffuser 1 extends beyond the cover 6 in a direction A opposite the conduit 4 of the vent 2 when the gas diffuser 1 is mounted on the vent 2.
  • the direction A is parallel to the central axis C of the gas diffuser 1.
  • the direction A corresponds to the vertical direction.
  • the gas flow is thus directed vertically, strongly limiting its horizontal diffusion.
  • the security around the gas distributor 3 is then optimized.
  • the pressure of the gas trapped inside the gun is about 250 bar.
  • the gun lever returns to its home position, opening an exhaust valve in the gun.
  • the trapped gas volume is then evacuated through a drain hose itself connected to the gas evacuation circuit of the gas distributor 3.
  • the gas evacuation circuit being connected to the vent 2, the The gas is then vented to the atmosphere through the gas diffuser 1.
  • the volume traversed by the gas for evacuation is greater than the volume of the gun.
  • the pressure of the gas inside the gas diffuser 1 is about 1 bar.
  • the cover 6 comprises an internal channel 12 comprising a first channel portion 13 fitted in the duct 4 of the vent 2.
  • the lid 6 comprises a second channel portion 14 communicating with the first channel portion 13 at its lower end 27.
  • the second channel portion 14 is closed by the central portion 7 of the lid 6 at its upper end 28.
  • the second channel portion 14 of the internal channel 12 of the cover 6 is delimited by a side wall 15 through which several diffusion openings 8 connect the internal channel 12 to the outside of the cover 6.
  • the diffusion orifices 8 are arranged in the vicinity of the central part 7 of the cover 6.
  • the diffusion orifices 8 are six in number.
  • the diffusing orifices 8 are arranged facing the outer peripheral wall 10 of the gas diffuser 1.
  • the gas stream emerging through the diffusion orifices 8 is directed towards the outer peripheral wall 10, for guiding or channeling the flow in the direction A by means of this outer peripheral wall 10.
  • the gas diffuser 1 is formed of two separate parts, the cover 6 on the one hand and a diffuser body 16 on the other.
  • the cover 6 and the diffuser body 16 are movable relative to each other to facilitate mounting on the conduit 4 of the vent 2 and maintenance.
  • the diffuser body 16 includes a central orifice 17 for receiving the lid 6 which has a circular section.
  • the diffuser body 16 and the lid 6 are concentric.
  • the diffuser body 16 also has a circular section.
  • the diffuser body 16 comprises a shoulder 29, as shown in FIG. 4, forming the bottom 18 of the groove 9.
  • the groove 9 of the gas diffuser 1 is delimited by the side wall 15 of the cover 6, by the outer peripheral wall 10 of the gas diffuser 1 forming the wall of the diffuser body 16 and by the shoulder 29.
  • the groove 9 has a width of at least 1 mm.
  • the groove 9 has in this example a width of about 5mm.
  • the diffuser body 16 comprises two water discharge channels 1 1 diametrically opposite one another.
  • the two water discharge channels 1 1 are in communication with the bottom 18 of the groove 9.
  • the two water discharge channels 1 1 and the diffusion openings 8 are orthogonal to the central axis C of the gas diffuser 1 in this example.
  • the two water discharge channels 1 1 and the diffusion ports 8 may alternatively be inclined with respect to the central axis C.
  • the diffusion orifices 8 have a circular section.
  • the two water discharge channels 1 1 each comprise a groove 30 dug in the bottom 18 of the groove 9.
  • the groove 30 has a semicircle section.
  • the two water discharge channels 1 1 also comprise an orifice 31 communicating with the groove 30 and opening outwardly of the gas diffuser 1 through the outer peripheral wall 10 of the gas diffuser 1.
  • the gas diffuser 1 comprises a fixing means 32 for attaching the gas diffuser 1 to the tube 4 of the vent 2.
  • the fastening means 32 comprises two diametrically opposed openings 19 opening out of the side wall 15 of the cover 6 and more precisely of the side wall 15 of the first channel portion 13 of the cover 6.
  • the two openings 19 are positioned at the lower part of the lid 6.
  • the fastening means 32 also comprises two diametrically opposed openings 20 opening out from the outer peripheral wall 10 of the diffuser body 16.
  • the two openings 20 are positioned at the lower part 33 of the diffuser body 16 and communicate with the central orifice 17 of the diffuser body 16.
  • the central orifice 17 of the diffuser body 16 comprises an upper portion 34 having a circular section larger than that of the lower portion 33 of the diffuser body 16.
  • the fixing means 32 also comprises a pin 21 passing through the openings 19, 20 respectively formed in the cover 6 and the diffuser body 16, as well as two diametrically opposed openings 22 provided in the duct 4 of the vent 2.
  • the pin 21 thus makes it possible to simply and quickly fix the gas diffuser 1 on the vent duct 4.
  • the method of fixing the gas diffuser 1 on the vent duct 4 comprises the following steps:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

The invention relates to a gas diffuser for a gas distributor vent comprising a conduit for venting gases, said conduit being connected to a gas venting circuit at its lower end and comprising an outlet at its upper end, this being connected to the gas diffuser, characterized in that it comprises: – a cover comprising a solid central portion arranged facing the outlet of the conduit of the vent so as to protect the interior of the conduit from water originating outside the diffuser, said cover comprising at least one diffusion orifice remote from the central portion and communicating with the interior of the conduit in order to diffuse the gas outside of the vent, – a channel surrounding the cover for connecting water originating outside the gas diffuser, said channel being bounded by an outer peripheral wall through which passes at least one evacuation duct for evacuating the water from the channel to outside the gas diffuser.

Description

DIFFUSEUR DE GAZ POUR EVENT DE DISTRIBUTEUR DE GAZ  GAS DIFFUSER FOR EVENT OF GAS DISPENSER

La présente invention concerne un diffuseur de gaz pour évent de distributeur de gaz pour véhicule et en particulier de distributeur de gaz GNV (Gaz Naturel pour Véhicule), ainsi qu'un distributeur de gaz comprenant un tel diffuseur. Un distributeur de gaz GNV comprend classiquement un circuit de distribution de gaz dans lequel le gaz est compressé à environ 250 bars. Le GNV ou CNG (Compressed Natural Gas) est composé essentiellement de méthane. The present invention relates to a gas diffuser for a vehicle gas distributor vent and in particular a distributor of CNG gas (Natural Gas for Vehicles), as well as a gas distributor comprising such a diffuser. A CNG gas distributor conventionally comprises a gas distribution circuit in which the gas is compressed to about 250 bar. CNG or Compressed Natural Gas (CNG) is essentially composed of methane.

Le circuit de distribution de gaz est relié d'une part à un réservoir d'alimentation en gaz et d'autre part à un pistolet destiné à délivrer du gaz sous pression à l'intérieur d'un réservoir de véhicule.  The gas distribution circuit is connected on the one hand to a gas supply tank and on the other hand to a gun for delivering pressurized gas into a vehicle tank.

Lorsque l'utilisateur termine le remplissage d'un réservoir de véhicule en gaz GNV, une quantité de gaz sous une pression d'environ 250 bars reste piégé dans le pistolet.  When the user finishes filling a vehicle tank with CNG gas, a quantity of gas under a pressure of about 250 bar remains trapped in the gun.

Il est nécessaire d'évacuer ce gaz sous pression pour éviter que l'utilisateur suivant ne libère une décharge brutale de gaz lors de l'ouverture du pistolet. Une telle pression de gaz entraînerait un recule violent du pistolet, ce qui pourrait blesser l'utilisateur.  It is necessary to evacuate this gas under pressure to prevent the next user releases a sudden discharge of gas when opening the gun. Such a gas pressure would cause a violent recoil of the gun, which could injure the user.

Pour éviter ce problème, le pistolet comprend un circuit d'évacuation du gaz sous pression relié à un flexible d'évacuation des gaz lui-même relié à un circuit d'évacuation prévu dans le distributeur.  To avoid this problem, the gun includes a pressure gas evacuation circuit connected to a gas evacuation hose itself connected to a discharge circuit provided in the distributor.

Ce circuit d'évacuation est connecté à un évent débouchant à l'atmosphère afin d'évacuer cette surpression de gaz dans l'atmosphère, au-dessus du distributeur de gaz.  This evacuation circuit is connected to a vent opening to the atmosphere in order to evacuate this excess pressure of gas in the atmosphere, above the gas distributor.

Ainsi, lorsqu'un utilisateur termine le remplissage d'un réservoir de véhicule, ce volume de gaz piégé à l'intérieur du pistolet est évacué au travers du circuit d'évacuation du distributeur puis vers l'évent.  Thus, when a user completes the filling of a vehicle tank, this volume of gas trapped inside the gun is discharged through the evacuation circuit of the dispenser and to the vent.

Le raccordement de l'évent au circuit de distribution de gaz permet également de purger manuellement le circuit de distribution de gaz.  The connection of the vent to the gas distribution circuit also allows manual bleeding of the gas distribution circuit.

Cependant, lorsqu'il pleut, de l'eau est susceptible de pénétrer à l'intérieur de l'évent et d'obstruer ce dernier. En effet, l'eau peut stagner dans la canalisation de l'évent au niveau des coudes et l'obstruer. L'évacuation du gaz par l'évent ne peut alors pas se faire correctement, posant des problèmes de sécurité.  However, when it rains, water is likely to enter and block the vent. Indeed, the water can stagnate in the pipe of the vent at the level of the elbows and obstruct it. The evacuation of gas through the vent can not then be done properly, posing security problems.

La présente invention se propose de remédier à l'inconvénient mentionné ci- dessus en proposant un diffuseur de gaz pour évent de distributeur de gaz permettant d'empêcher l'eau de pénétrer à l'intérieur de l'évent, évitant ainsi son obstruction.  The present invention proposes to overcome the disadvantage mentioned above by providing a gas distributor vent gas diffuser to prevent water from entering the interior of the vent, thus avoiding its obstruction.

A cet effet, l'invention concerne un diffuseur de gaz pour évent de distributeur de gaz comprenant un conduit pour évacuer des gaz. Le conduit est connecté à un circuit d'évacuation des gaz à son extrémité inférieure et comprend une sortie à son extrémité supérieure connectée au diffuseur de gaz. For this purpose, the invention relates to a gas diffuser for a gas distributor vent comprising a conduit for evacuating gases. The conduit is connected to a gas discharge circuit at its lower end and includes an outlet at its upper end connected to the gas diffuser.

Selon l'invention, le diffuseur de gaz comprend :  According to the invention, the gas diffuser comprises:

- un couvercle comprenant une partie centrale pleine disposée face à la sortie du conduit de l'évent pour protéger l'intérieur du conduit de l'eau provenant de l'extérieur du diffuseur, ledit couvercle comprenant au moins un orifice de diffusion distant de la partie centrale et communicant avec l'intérieur du conduit pour diffuser le gaz à l'extérieur de l'évent, et  a lid comprising a solid central part arranged facing the outlet of the vent duct to protect the interior of the duct from water coming from the outside of the diffuser, said lid comprising at least one diffusion orifice remote from the diffuser; central portion and communicating with the interior of the duct to diffuse the gas outside the vent, and

- une gorge entourant le couvercle pour collecter de l'eau provenant de l'extérieur du diffuseur de gaz, ladite gorge étant délimitée par une paroi périphérique externe traversée par au moins un canal d'évacuation pour évacuer l'eau de la gorge vers l'extérieur du diffuseur de gaz.  a groove surrounding the cover for collecting water coming from outside the gas diffuser, said groove being delimited by an external peripheral wall traversed by at least one evacuation channel for evacuating water from the groove to the outside; outside the gas diffuser.

L'invention fournit ainsi un diffuseur de gaz pour évent de distributeur de gaz permettant d'empêcher l'eau de pénétrer à l'intérieur de l'évent, évitant ainsi son obstruction. Ce diffuseur de gaz limite aussi la pénétration de poussières et d'insectes à l'intérieur de l'évent. The invention thus provides a gas distributor vent gas diffuser to prevent water from entering the vent, thereby avoiding its obstruction. This gas diffuser also limits the penetration of dust and insects into the vent.

Le diffuseur de gaz peut comprendre les caractéristiques suivantes prises individuellement ou en combinaison.  The gas diffuser may include the following features taken individually or in combination.

Selon une variante, la partie centrale du couvercle présente une surface de dimension supérieure à celle de la sortie du conduit de l'évent.  According to one variant, the central portion of the cover has a surface of dimension greater than that of the outlet of the duct of the vent.

Ceci permet d'optimiser la protection du conduit d'évent contre la pénétration d'eau.  This optimizes the protection of the vent pipe against the ingress of water.

Selon une autre variante, la paroi périphérique externe du diffuseur de gaz s'étend au-delà des orifices de diffusion suivant une direction A opposée au conduit de l'évent lorsque le diffuseur de gaz est monté sur l'évent.  According to another variant, the outer peripheral wall of the gas diffuser extends beyond the diffusion holes in a direction A opposite to the duct of the vent when the gas diffuser is mounted on the vent.

Ceci permet de diriger le flux gazeux suivant la direction A. Lorsque le diffuseur de gaz est monté sur l'évent du distributeur de gaz, la direction A correspond à la direction verticale. Le flux gazeux est ainsi dirigé verticalement, limitant fortement sa diffusion horizontale. La sécurité autour du distributeur de gaz est alors optimisée.  This makes it possible to direct the gas flow in the direction A. When the gas diffuser is mounted on the gas distributor vent, the direction A corresponds to the vertical direction. The gas flow is thus directed vertically, strongly limiting its horizontal diffusion. The safety around the gas distributor is then optimized.

L'invention permet ainsi de résoudre un problème de sécurité en plus du problème de pénétration d'eau dans l'évent.  The invention thus makes it possible to solve a safety problem in addition to the problem of penetration of water into the vent.

Selon une autre variante, le couvercle comprend un canal interne comportant une première portion de canal emboîtée dans le conduit de l'évent et une deuxième portion de canal communicant avec la première portion de canal à son extrémité inférieure et fermée par la partie centrale du couvercle à son extrémité supérieure. Selon une autre variante, la première portion de canal du canal interne du couvercle est délimitée par une paroi latérale traversée par plusieurs orifices de diffusions reliant le canal interne à l'extérieur du couvercle. According to another variant, the lid comprises an internal channel having a first channel portion fitted into the vent duct and a second channel portion communicating with the first channel portion at its lower end and closed by the central portion of the lid. at its upper end. According to another variant, the first channel portion of the inner channel of the lid is delimited by a side wall through which a plurality of diffusion orifices connect the internal channel to the outside of the lid.

Selon une autre variante, le ou les orifices de diffusions sont disposés au voisinage de la partie centrale du couvercle.  According to another variant, the orifices of diffusions are arranged in the vicinity of the central part of the lid.

Selon une autre variante, le ou les orifices de diffusions sont disposés face à la paroi périphérique externe du diffuseur de gaz.  According to another variant, the orifices of diffusions are arranged facing the outer peripheral wall of the gas diffuser.

Selon une autre variante, le diffuseur de gaz est formé de deux pièces distinctes dont le couvercle d'une part et un corps de diffuseur d'autre part comprenant un orifice central pour recevoir le couvercle. La gorge est délimitée par la paroi latérale du couvercle et par la paroi périphérique externe du diffuseur de gaz formant la paroi du corps de diffuseur.  According to another variant, the gas diffuser is formed of two separate parts, the lid on the one hand and a diffuser body on the other hand comprising a central orifice for receiving the lid. The groove is delimited by the side wall of the cover and by the outer peripheral wall of the gas diffuser forming the wall of the diffuser body.

Ceci permet de faciliter le montage et démontage du diffuseur de gaz sur le conduit de l'évent.  This facilitates the assembly and disassembly of the gas diffuser on the duct of the vent.

Selon une autre variante, le corps de diffuseur comprend deux canaux d'évacuation de l'eau diamétralement opposés l'un par rapport à l'autre, les deux canaux d'évacuation de l'eau étant en communication avec le fond de la gorge.  According to another variant, the diffuser body comprises two water discharge channels diametrically opposite one another, the two water discharge channels being in communication with the bottom of the throat .

Selon une autre variante, le diffuseur de gaz comprend un moyen de fixation pour fixer le diffuseur de gaz sur le tube de l'évent. Le moyen de fixation comprend deux ouvertures diamétralement opposées débouchant de la paroi latérale du couvercle, deux ouvertures diamétralement opposées débouchant de la paroi périphérique externe du corps de diffuseur et une goupille traversant les ouvertures, ainsi que deux ouvertures diamétralement opposées prévues dans le conduit de l'évent.  According to another variant, the gas diffuser comprises a fixing means for fixing the gas diffuser on the tube of the vent. The fixing means comprises two diametrically opposed openings opening from the side wall of the lid, two diametrically opposed openings opening out from the outer peripheral wall of the diffuser body and a pin passing through the openings, and two diametrically opposite openings provided in the conduit of the vent.

L'invention concerne également un distributeur de gaz comprenant un évent comportant un conduit pour évacuer des gaz à l'atmosphère. Le conduit est connecté à un circuit d'évacuation des gaz à son extrémité inférieure et comprend une sortie à son extrémité supérieure connectée à un diffuseur de gaz.  The invention also relates to a gas distributor comprising a vent comprising a duct for evacuating gases to the atmosphere. The conduit is connected to a gas discharge circuit at its lower end and includes an outlet at its upper end connected to a gas diffuser.

Selon l'invention, le diffuseur de gaz est tel que défini précédemment. L'invention fournit ainsi un diffuseur de gaz pour distributeur de gaz GNV destiné à être fixé à l'extrémité d'un évent permettant à la fois d'empêcher l'eau de pénétrer à l'intérieur de l'évent tout en permettant une éjection verticale du gaz afin de limiter sa zone de propagation et en particulier sa propagation selon la direction horizontale.  According to the invention, the gas diffuser is as defined above. The invention thus provides a gas diffuser for a gas distributor CNG intended to be fixed at the end of a vent allowing both to prevent water from entering the interior of the vent while allowing a vertical ejection of the gas to limit its propagation zone and in particular its propagation in the horizontal direction.

Le diffuseur de gaz peut également être utilisé pour d'autres distributeurs de gaz comme des distributeurs de dihydrogène, par exemple. Les caractéristiques de l'invention seront décrites plus en détail en se référant aux dessins non limitatifs annexés dans lesquels : - la figure 1 représente schématiquement un distributeur de gaz GNV selon un mode de réalisation de l'invention ; The gas diffuser can also be used for other gas distributors such as dihydrogen distributors, for example. The characteristics of the invention will be described in more detail with reference to the appended nonlimiting drawings in which: - Figure 1 shows schematically a CNG gas distributor according to one embodiment of the invention;

- la figure 2 représente schématiquement un diffuseur monté sur un conduit d'évent ;  - Figure 2 shows schematically a diffuser mounted on a vent duct;

- la figure 3 représente une vue éclatée de l'évent ;  - Figure 3 shows an exploded view of the vent;

- la figure 4 représente une vue en coupe et éclatée de l'évent.  - Figure 4 shows a sectional and exploded view of the vent.

La figure 1 représente un distributeur de gaz 3, notamment de GNV, comprenant un ensemble de distribution de gaz ou circuit hydraulique relié à un réservoir de gaz et à un flexible équipé d'un pistolet pour délivrer du gaz dans un réservoir de véhicule.  FIG. 1 represents a gas distributor 3, in particular of CNG, comprising a gas distribution assembly or hydraulic circuit connected to a gas tank and to a hose equipped with a gun for delivering gas into a vehicle tank.

Le distributeur de gaz 3 comprend également un circuit d'évacuation des gaz 24 connecté à un évent 2 comprenant un conduit 4 pour évacuer des gaz. Le conduit 4 est connecté au circuit d'évacuation des gaz 24 à son extrémité inférieure 25 et à un diffuseur de gaz 1 à son extrémité supérieure 5.  The gas distributor 3 also comprises a gas evacuation circuit 24 connected to a vent 2 comprising a duct 4 for evacuating gases. The duct 4 is connected to the gas evacuation circuit 24 at its lower end 25 and to a gas diffuser 1 at its upper end 5.

Le conduit 4 d'évent 2 présente classiquement une section circulaire et est traversé par un canal débouchant de l'extrémité supérieure 5 du conduit 4 par une sortie 26.  The duct 4 vent 2 conventionally has a circular section and is crossed by a channel opening from the upper end 5 of the duct 4 by an outlet 26.

Comme représenté sur les figures 2 à 4, le diffuseur de gaz 1 comporte un couvercle 6 comprenant une partie centrale 7 disposée face au conduit 4 de l'évent 2 pour protéger l'intérieur du conduit 4 de l'eau provenant de l'extérieur du diffuseur.  As shown in FIGS. 2 to 4, the gas diffuser 1 comprises a lid 6 comprising a central portion 7 disposed facing the duct 4 of the vent 2 to protect the inside of the duct 4 from water coming from outside of the broadcaster.

La partie centrale 7 est pleine et non ajourée. Elle est distante de l'extrémité supérieure 5 du conduit 4 d'évent 2 pour éviter d'obstruer la sortie 26 du conduit 4 de l'évent 2. La partie centrale 7 est positionnée en regard de la sortie 26 du conduit 4.  The central portion 7 is full and not perforated. It is distant from the upper end 5 of the duct 4 vent 2 to avoid clogging the outlet 26 of the duct 4 of the vent 2. The central portion 7 is positioned opposite the outlet 26 of the duct 4.

Le diffuseur de gaz 1 peut être en métal ou en plastique, par exemple. La surface de la partie centrale 7 du couvercle 6 présente une dimension supérieure à celle de la sortie 26 du conduit 4 de l'évent 2, permettant d'optimiser la protection du conduit 4 d'évent 2 contre la pénétration d'eau.  The gas diffuser 1 may be metal or plastic, for example. The surface of the central portion 7 of the cover 6 has a larger dimension than that of the outlet 26 of the duct 4 of the vent 2, making it possible to optimize the protection of the vent duct 4 against the penetration of water.

Le couvercle 6 comprend au moins un orifice de diffusion 8 distant de la partie centrale 7 et communicant avec l'intérieur du conduit 4 pour diffuser le gaz à l'extérieur de l'évent 2. Plus précisément, l'orifice de diffusion 8 communique avec la sortie 26 du conduit 4.  The lid 6 comprises at least one diffusion orifice 8 remote from the central portion 7 and communicating with the interior of the duct 4 to diffuse the gas outside the vent 2. More precisely, the diffusion orifice 8 communicates with the outlet 26 of the duct 4.

Le diffuseur de gaz 1 comporte une gorge 9 entourant le couvercle 6 pour collecter de l'eau provenant de l'extérieur du diffuseur de gaz 1 .  The gas diffuser 1 has a groove 9 surrounding the cover 6 to collect water from outside the gas diffuser 1.

La gorge 9 est délimitée par une paroi périphérique externe 10 traversée par au moins un canal d'évacuation 1 1 pour évacuer l'eau de la gorge 9 vers l'extérieur du diffuseur de gaz 1 . La paroi périphérique externe 10 du diffuseur de gaz 1 s'étend au-delà des orifices de diffusion 8 suivant une direction A opposée au conduit 4 de l'évent 2 lorsque le diffuseur de gaz 1 est monté sur l'évent 2. The groove 9 is delimited by an outer peripheral wall 10 traversed by at least one evacuation channel 1 1 for discharging the water from the groove 9 towards the outside of the gas diffuser 1. The outer peripheral wall 10 of the gas diffuser 1 extends beyond the diffusion holes 8 in a direction A opposite the duct 4 of the vent 2 when the gas diffuser 1 is mounted on the vent 2.

Avantageusement, la paroi périphérique externe 10 du diffuseur de gaz 1 s'étend au-delà des orifices de diffusion 8 sur une distance d'au moins 1 mm.  Advantageously, the outer peripheral wall 10 of the gas diffuser 1 extends beyond the diffusion holes 8 over a distance of at least 1 mm.

De préférence, la paroi périphérique externe 10 du diffuseur de gaz 1 s'étend au-delà du couvercle 6 suivant une direction A opposée au conduit 4 de l'évent 2 lorsque le diffuseur de gaz 1 est monté sur l'évent 2.  Preferably, the outer peripheral wall 10 of the gas diffuser 1 extends beyond the cover 6 in a direction A opposite the conduit 4 of the vent 2 when the gas diffuser 1 is mounted on the vent 2.

La direction A est parallèle à l'axe central C du diffuseur de gaz 1.  The direction A is parallel to the central axis C of the gas diffuser 1.

Ceci permet de diriger le flux gazeux suivant la direction A. Lorsque le diffuseur de gaz 1 est monté sur l'évent 2 du distributeur de gaz 3, la direction A correspond à la direction verticale. Le flux gazeux est ainsi dirigé verticalement, limitant fortement sa diffusion horizontale. La sécurité autour du distributeur de gaz 3 est alors optimisée.  This makes it possible to direct the gas flow in the direction A. When the gas diffuser 1 is mounted on the vent 2 of the gas distributor 3, the direction A corresponds to the vertical direction. The gas flow is thus directed vertically, strongly limiting its horizontal diffusion. The security around the gas distributor 3 is then optimized.

La pression du gaz piégé à l'intérieur du pistolet est d'environ 250 bars. Lorsque l'utilisateur termine sa transaction en gaz, le levier du pistolet revient dans sa position de repos, ouvrant une valve d'évacuation dans le pistolet. Le volume de gaz piégé est alors évacué au travers d'un flexible d'évacuation lui-même relié au circuit d'évacuation des gaz du distributeur de gaz 3. Le circuit d'évacuation des gaz étant connecté à l'évent 2, le gaz est ensuite évacué à l'atmosphère à travers le diffuseur de gaz 1. Le volume traversé par le gaz pour son évacuation est supérieur à celui du volume du pistolet. La pression du gaz à l'intérieur du diffuseur de gaz 1 est d'environ 1 bar.  The pressure of the gas trapped inside the gun is about 250 bar. When the user completes the gas transaction, the gun lever returns to its home position, opening an exhaust valve in the gun. The trapped gas volume is then evacuated through a drain hose itself connected to the gas evacuation circuit of the gas distributor 3. The gas evacuation circuit being connected to the vent 2, the The gas is then vented to the atmosphere through the gas diffuser 1. The volume traversed by the gas for evacuation is greater than the volume of the gun. The pressure of the gas inside the gas diffuser 1 is about 1 bar.

Comme représenté sur la figure 4, le couvercle 6 comprend un canal interne 12 comportant une première portion de canal 13 emboîtée dans le conduit 4 de l'évent 2.  As shown in FIG. 4, the cover 6 comprises an internal channel 12 comprising a first channel portion 13 fitted in the duct 4 of the vent 2.

Le couvercle 6 comprend une deuxième portion de canal 14 communicant avec la première portion de canal 13 à son extrémité inférieure 27. La deuxième portion de canal 14 est fermée par la partie centrale 7 du couvercle 6 à son extrémité supérieure 28.  The lid 6 comprises a second channel portion 14 communicating with the first channel portion 13 at its lower end 27. The second channel portion 14 is closed by the central portion 7 of the lid 6 at its upper end 28.

La deuxième portion de canal 14 du canal interne 12 du couvercle 6 est délimitée par une paroi latérale 15 traversée par plusieurs orifices de diffusions 8 reliant le canal interne 12 à l'extérieur du couvercle 6.  The second channel portion 14 of the internal channel 12 of the cover 6 is delimited by a side wall 15 through which several diffusion openings 8 connect the internal channel 12 to the outside of the cover 6.

Les orifices de diffusions 8 sont disposés au voisinage de la partie centrale 7 du couvercle 6.  The diffusion orifices 8 are arranged in the vicinity of the central part 7 of the cover 6.

Ceci permet d'éloigner les orifices de diffusions 8 du fond 18 de la gorge 9 pour éviter à l'eau récupérée dans la gorge 9 de pénétrer par les orifices de diffusions 8.  This makes it possible to move the diffusion orifices 8 away from the bottom 18 of the groove 9 to prevent the water recovered in the groove 9 from penetrating through the diffusion orifices 8.

Dans l'exemple des figures 1 à 4, les orifices de diffusions 8 sont au nombre de six.  In the example of FIGS. 1 to 4, the diffusion orifices 8 are six in number.

Le ou les orifices de diffusions 8 sont disposés face à la paroi périphérique externe 10 du diffuseur de gaz 1 . Le flux gazeux ressortant par les orifices de diffusions 8 est dirigé vers la paroi périphérique externe 10, permettant de guider ou canaliser le flux suivant la direction A au moyen de cette paroi périphérique externe 10. The diffusing orifices 8 are arranged facing the outer peripheral wall 10 of the gas diffuser 1. The gas stream emerging through the diffusion orifices 8 is directed towards the outer peripheral wall 10, for guiding or channeling the flow in the direction A by means of this outer peripheral wall 10.

Le diffuseur de gaz 1 est formé de deux pièces distinctes dont le couvercle 6 d'une part et un corps de diffuseur 16 d'autre part. Le couvercle 6 et le corps de diffuseur 16 sont mobiles l'un par rapport à l'autre permettant de faciliter le montage sur le conduit 4 de l'évent 2 et la maintenance.  The gas diffuser 1 is formed of two separate parts, the cover 6 on the one hand and a diffuser body 16 on the other. The cover 6 and the diffuser body 16 are movable relative to each other to facilitate mounting on the conduit 4 of the vent 2 and maintenance.

Le procédé de montage sera décrit plus loin.  The editing process will be described later.

Le corps de diffuseur 16 comprend un orifice central 17 pour recevoir le couvercle 6 qui présente une section circulaire. Le corps de diffuseur 16 et le couvercle 6 sont concentriques.  The diffuser body 16 includes a central orifice 17 for receiving the lid 6 which has a circular section. The diffuser body 16 and the lid 6 are concentric.

Le corps de diffuseur 16 présente également une section circulaire. The diffuser body 16 also has a circular section.

Le corps de diffuseur 16 comprend un épaulement 29, comme représenté sur la figure 4, formant le fond 18 de la gorge 9. The diffuser body 16 comprises a shoulder 29, as shown in FIG. 4, forming the bottom 18 of the groove 9.

La gorge 9 du diffuseur de gaz 1 est délimitée par la paroi latérale 15 du couvercle 6, par la paroi périphérique externe 10 du diffuseur de gaz 1 formant la paroi du corps de diffuseur 16 et par l'épaulement 29.  The groove 9 of the gas diffuser 1 is delimited by the side wall 15 of the cover 6, by the outer peripheral wall 10 of the gas diffuser 1 forming the wall of the diffuser body 16 and by the shoulder 29.

La gorge 9 présente une largeur d'au moins 1 mm.  The groove 9 has a width of at least 1 mm.

La gorge 9 présente dans cet exemple, une largeur d'environ 5mm. The groove 9 has in this example a width of about 5mm.

Le corps de diffuseur 16 comprend deux canaux d'évacuation de l'eau 1 1 diamétralement opposés l'un par rapport à l'autre. Les deux canaux d'évacuation de l'eau 1 1 sont en communication avec le fond 18 de la gorge 9. The diffuser body 16 comprises two water discharge channels 1 1 diametrically opposite one another. The two water discharge channels 1 1 are in communication with the bottom 18 of the groove 9.

Les deux canaux d'évacuation de l'eau 1 1 et les orifices de diffusions 8 sont orthogonaux à l'axe centrale C du diffuseur de gaz 1 dans cet exemple. Les deux canaux d'évacuation de l'eau 1 1 et les orifices de diffusions 8 peuvent en variante être inclinés par rapport à l'axe centrale C.  The two water discharge channels 1 1 and the diffusion openings 8 are orthogonal to the central axis C of the gas diffuser 1 in this example. The two water discharge channels 1 1 and the diffusion ports 8 may alternatively be inclined with respect to the central axis C.

Les orifices de diffusions 8 présentent une section circulaire.  The diffusion orifices 8 have a circular section.

Comme représenté sur la figure 3, les deux canaux d'évacuation de l'eau 1 1 comprennent chacun une rainure 30 creusée dans le fond 18 de la gorge 9. La rainure 30 présente une section de demi-cercle.  As shown in Figure 3, the two water discharge channels 1 1 each comprise a groove 30 dug in the bottom 18 of the groove 9. The groove 30 has a semicircle section.

Les deux canaux d'évacuation de l'eau 1 1 comprennent également un orifice 31 communicant avec la rainure 30 et débouchant à l'extérieur du diffuseur de gaz 1 à travers la paroi périphérique externe 10 du diffuseur de gaz 1 .  The two water discharge channels 1 1 also comprise an orifice 31 communicating with the groove 30 and opening outwardly of the gas diffuser 1 through the outer peripheral wall 10 of the gas diffuser 1.

Le diffuseur de gaz 1 comprend un moyen de fixation 32 pour fixer le diffuseur de gaz 1 sur le tube 4 de l'évent 2.  The gas diffuser 1 comprises a fixing means 32 for attaching the gas diffuser 1 to the tube 4 of the vent 2.

Le moyen de fixation 32 comprend deux ouvertures 19 diamétralement opposées débouchant de la paroi latérale 15 du couvercle 6 et plus précisément de la paroi latérale 15 de la première portion de canal 13 du couvercle 6. Les deux ouvertures 19 sont positionnées au niveau de la partie inférieure du couvercle 6. The fastening means 32 comprises two diametrically opposed openings 19 opening out of the side wall 15 of the cover 6 and more precisely of the side wall 15 of the first channel portion 13 of the cover 6. The two openings 19 are positioned at the lower part of the lid 6.

Le moyen de fixation 32 comprend également deux ouvertures 20 diamétralement opposées débouchant de la paroi périphérique externe 10 du corps de diffuseur 16.  The fastening means 32 also comprises two diametrically opposed openings 20 opening out from the outer peripheral wall 10 of the diffuser body 16.

Les deux ouvertures 20 sont positionnées au niveau de la partie inférieure 33 du corps de diffuseur 16 et communiquent avec l'orifice central 17 du corps de diffuseur 16.  The two openings 20 are positioned at the lower part 33 of the diffuser body 16 and communicate with the central orifice 17 of the diffuser body 16.

L'orifice central 17 du corps de diffuseur 16 comprend une partie supérieure 34 ayant une section circulaire plus grande que celle de la partie inférieure 33 du corps de diffuseur 16.  The central orifice 17 of the diffuser body 16 comprises an upper portion 34 having a circular section larger than that of the lower portion 33 of the diffuser body 16.

C'est la partie inférieure 33 de l'orifice central 17 du corps de diffuseur 16 qui s'emboite dans le conduit 4 de l'évent 2.  It is the lower part 33 of the central orifice 17 of the diffuser body 16 which fits into the duct 4 of the vent 2.

Le moyen de fixation 32 comprend également une goupille 21 traversant les ouvertures 19, 20 formées respectivement dans le couvercle 6 et le corps de diffuseur 16, ainsi que deux ouvertures 22 diamétralement opposées prévues dans le conduit 4 de l'évent 2.  The fixing means 32 also comprises a pin 21 passing through the openings 19, 20 respectively formed in the cover 6 and the diffuser body 16, as well as two diametrically opposed openings 22 provided in the duct 4 of the vent 2.

La goupille 21 permet ainsi de fixer simplement et rapidement le diffuseur de gaz 1 sur le conduit 4 d'évent 2.  The pin 21 thus makes it possible to simply and quickly fix the gas diffuser 1 on the vent duct 4.

Le procédé de fixation du diffuseur de gaz 1 sur le conduit 4 d'évent 2 comprend les étapes suivantes :  The method of fixing the gas diffuser 1 on the vent duct 4 comprises the following steps:

- emboîtement de la première portion de canal 13 du couvercle 6 dans le conduit 4 d'évent 2 ; - interlocking of the first channel portion 13 of the cover 6 in the duct 4 vent 2;

- insertion du couvercle 6 dans l'orifice central 17 du corps de diffuseur 16 ; - insertion de la goupille 21 dans les deux ouvertures 20 diamétralement opposées débouchant de la paroi périphérique externe 10 du corps de diffuseur 16, dans les deux ouvertures 19 diamétralement opposées débouchant de la paroi latérale 15 du couvercle 6 et dans les deux ouvertures 22 diamétralement opposées prévues dans le conduit 4 de l'évent 2.  inserting the lid 6 in the central orifice 17 of the diffuser body 16; - insertion of the pin 21 in the two diametrically opposite openings 20 opening the outer peripheral wall 10 of the diffuser body 16, in the two diametrically opposed openings 19 opening from the side wall 15 of the lid 6 and in the two openings 22 diametrically opposite provided in the duct 4 of the vent 2.

Claims

REVENDICATIONS 1 . Diffuseur de gaz (1 ) pour évent (2) de distributeur de gaz (3) comprenant un conduit (4) pour évacuer des gaz, ledit conduit (4) étant connecté à un circuit d'évacuation des gaz (24) à son extrémité inférieure (25) et comprenant une sortie (26) à son extrémité supérieure (5) connectée au diffuseur de gaz (1 ), caractérisé en ce qu'il comprend : 1. Gas distributor (1) for gas distributor vent (2) (3) comprising a conduit (4) for discharging gases, said duct (4) being connected to a gas evacuation circuit (24) at its end lower part (25) and comprising an outlet (26) at its upper end (5) connected to the gas diffuser (1), characterized in that it comprises: un couvercle (6) comprenant une partie centrale (7) pleine disposée face à la sortie (26) du conduit (4) de l'évent (2) pour protéger l'intérieur du conduit (4) de l'eau provenant de l'extérieur du diffuseur, ledit couvercle (6) étant traversé par au moins un orifice de diffusion (8) distant de la partie centrale (7) et communicant avec l'intérieur du conduit (4) pour diffuser le gaz à l'extérieur de l'évent (2),  a cover (6) comprising a solid central portion (7) arranged facing the outlet (26) of the duct (4) of the vent (2) to protect the interior of the duct (4) from water coming from the outside the diffuser, said cover (6) being traversed by at least one diffusion orifice (8) remote from the central portion (7) and communicating with the interior of the duct (4) to diffuse the gas outside the the vent (2), une gorge (9) entourant le couvercle (6) pour collecter de l'eau provenant de l'extérieur du diffuseur de gaz (1 ), ladite gorge (9) étant délimitée par une paroi périphérique externe (10) traversée par au moins un canal d'évacuation (1 1 ) pour évacuer l'eau de la gorge (9) vers l'extérieur du diffuseur de gaz (1 ), la paroi périphérique externe (10) du diffuseur de gaz (1 ) s'étend au-delà des orifices de diffusion (8) suivant une direction A opposée au conduit (4) de l'évent (2) lorsque le diffuseur de gaz (1 ) est monté sur l'évent (2),  a groove (9) surrounding the cover (6) for collecting water from outside the gas diffuser (1), said groove (9) being delimited by an outer peripheral wall (10) traversed by at least one discharge channel (1 1) for discharging the water from the groove (9) towards the outside of the gas diffuser (1), the outer peripheral wall (10) of the gas diffuser (1) extends beyond beyond the diffusion orifices (8) in a direction A opposite to the duct (4) of the vent (2) when the gas diffuser (1) is mounted on the vent (2), le ou les orifices de diffusions (8) sont disposés au voisinage de la partie centrale (7) du couvercle (6) et face à la paroi périphérique externe (10) du diffuseur de gaz the diffusion opening (s) (8) are arranged in the vicinity of the central portion (7) of the cover (6) and facing the outer peripheral wall (10) of the gas diffuser (1 )- (1) - 2. Diffuseur de gaz (1 ) selon la revendication 1 , caractérisé en ce que la partie centrale (7) du couvercle (6) présente une surface de dimension supérieure à celle de la sortie (26) du conduit (4) de l'évent (2). 2. gas diffuser (1) according to claim 1, characterized in that the central portion (7) of the cover (6) has a larger surface area than the outlet (26) of the conduit (4) of the vent (2). 3. Diffuseur de gaz (1 ) selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le couvercle (6) comprend un canal interne (12) comportant une première portion de canal (13) emboîtée dans le conduit (4) de l'évent (2) et une deuxième portion de canal (14) communicant avec la première portion de canal (13) à son extrémité inférieure (27) et fermée par la partie centrale (7) du couvercle (6) à son extrémité supérieure (28). 3. gas diffuser (1) according to any one of claims 1 or 2, characterized in that the cover (6) comprises an inner channel (12) having a first channel portion (13) nested in the conduit (4). ) of the vent (2) and a second channel portion (14) communicating with the first channel portion (13) at its lower end (27) and closed by the central portion (7) of the cover (6) at its upper end (28). 4. Diffuseur de gaz (1 ) selon la revendication 3, caractérisé en ce que la première portion de canal (13) du canal interne (12) du couvercle (6) est délimitée par une paroi latérale (15) traversée par plusieurs orifices de diffusions (8) reliant le canal interne (12) à l'extérieur du couvercle (6). 4. gas diffuser (1) according to claim 3, characterized in that the first channel portion (13) of the inner channel (12) of the lid (6) is delimited by a side wall (15) traversed by a plurality of diffusion openings (8) connecting the inner channel (12) to the outside of the lid (6). 5. Diffuseur de gaz (1 ) selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'il est formé de deux pièces distinctes dont le couvercle (6) d'une part et un corps de diffuseur (16) d'autre part comprenant un orifice central (17) pour recevoir le couvercle (6), la gorge (9) étant délimitée par la paroi latérale (15) du couvercle (6) et par la paroi périphérique externe (10) du diffuseur de gaz (1 ) formant la paroi du corps de diffuseur (16). 5. gas diffuser (1) according to any one of claims 1 to 4, characterized in that it is formed of two separate parts including the cover (6) on the one hand and a diffuser body (16) d on the other hand comprising a central orifice (17) for receiving the lid (6), the groove (9) being delimited by the side wall (15) of the lid (6) and by the external peripheral wall (10) of the gas diffuser (1) forming the wall of the diffuser body (16). 6. Diffuseur de gaz (1 ) selon la revendication 5, caractérisé en ce que le corps de diffuseur (16) comprend deux canaux d'évacuation de l'eau (1 1 ) diamétralement opposés l'un par rapport à l'autre, les deux canaux d'évacuation de l'eau (1 1 ) étant en communication avec le fond (18) de la gorge (9). 6. gas diffuser (1) according to claim 5, characterized in that the diffuser body (16) comprises two water discharge channels (1 1) diametrically opposite one another, the two water discharge channels (1 1) being in communication with the bottom (18) of the groove (9). 7. Diffuseur de gaz (1 ) selon l'une quelconque des revendications 5 ou 6, caractérisé en ce qu'il comprend un moyen de fixation (32) pour fixer le diffuseur de gaz (1 ) sur le tube (4) de l'évent (2), le moyen de fixation (32) comprenant deux ouvertures (19) diamétralement opposées débouchant de la paroi latérale (15) du couvercle (6), deux ouvertures (20) diamétralement opposées débouchant de la paroi périphérique externe (10) du corps de diffuseur (16) et une goupille (21 ) traversant lesdites ouvertures (19, 20) ainsi que deux ouvertures (22) diamétralement opposées prévues dans le conduit (4) de l'évent (2). 7. gas diffuser (1) according to any one of claims 5 or 6, characterized in that it comprises a fixing means (32) for fixing the gas diffuser (1) on the tube (4) of the vent (2), the fastening means (32) comprising two diametrically opposed apertures (19) opening out from the side wall (15) of the cover (6), two diametrically opposed apertures (20) opening out from the outer peripheral wall (10). ) of the diffuser body (16) and a pin (21) passing through said openings (19, 20) and two diametrically opposed openings (22) provided in the duct (4) of the vent (2). 8. Distributeur de gaz (3) comprenant un évent (2) comportant un conduit (4) pour évacuer des gaz à l'atmosphère, ledit conduit (4) étant connecté à un circuit d'évacuation des gaz (24) à son extrémité inférieure (25) et comprenant une sortie (26) à son extrémité supérieure (5) connectée à un diffuseur de gaz (1 ), caractérisé en ce que le diffuseur de gaz (1 ) est tel que défini par les revendications 1 à 7. 8. A gas distributor (3) comprising a vent (2) comprising a conduit (4) for evacuating gases to the atmosphere, said duct (4) being connected to a gas evacuation circuit (24) at its end lower part (25) and comprising an outlet (26) at its upper end (5) connected to a gas diffuser (1), characterized in that the gas diffuser (1) is as defined by claims 1 to 7.
PCT/EP2018/050906 2017-01-16 2018-01-15 Gas diffuser for a gas distributor vent Ceased WO2018130697A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18700304.1A EP3568629A1 (en) 2017-01-16 2018-01-15 Gas diffuser for a gas distributor vent

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1750309A FR3061900B1 (en) 2017-01-16 2017-01-16 GAS DIFFUSER FOR GAS DISTRIBUTOR VENT
FR1750309 2017-01-16

Publications (1)

Publication Number Publication Date
WO2018130697A1 true WO2018130697A1 (en) 2018-07-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/050906 Ceased WO2018130697A1 (en) 2017-01-16 2018-01-15 Gas diffuser for a gas distributor vent

Country Status (3)

Country Link
EP (1) EP3568629A1 (en)
FR (1) FR3061900B1 (en)
WO (1) WO2018130697A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2444707B1 (en) * 1974-09-19 1975-04-17 Leinemann Co Flammenfilter Vent and safety valve
US5323820A (en) * 1991-01-07 1994-06-28 Brand Randolf W Fuel spillage control apparatus
US6513541B1 (en) * 1999-06-17 2003-02-04 Geoffrey Francis Herlihy Vent valve
US20050000802A1 (en) * 2003-07-03 2005-01-06 Raymond Hobbs Hydrogen handling or dispensing system
GB2503429A (en) * 2012-06-25 2014-01-01 Christopher Kirk Tanner Pipe draining apparatus
GB2532854A (en) * 2014-10-16 2016-06-01 Rob Pond Plumb Heating Solutions Ltd Pipe Fitting

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2444707B1 (en) * 1974-09-19 1975-04-17 Leinemann Co Flammenfilter Vent and safety valve
US5323820A (en) * 1991-01-07 1994-06-28 Brand Randolf W Fuel spillage control apparatus
US6513541B1 (en) * 1999-06-17 2003-02-04 Geoffrey Francis Herlihy Vent valve
US20050000802A1 (en) * 2003-07-03 2005-01-06 Raymond Hobbs Hydrogen handling or dispensing system
GB2503429A (en) * 2012-06-25 2014-01-01 Christopher Kirk Tanner Pipe draining apparatus
GB2532854A (en) * 2014-10-16 2016-06-01 Rob Pond Plumb Heating Solutions Ltd Pipe Fitting

Also Published As

Publication number Publication date
FR3061900A1 (en) 2018-07-20
FR3061900B1 (en) 2021-07-30
EP3568629A1 (en) 2019-11-20

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