EP3748229B1 - Valve anti-reflux d'un brûleur à gaz et ensemble comprenant la valve anti-reflux - Google Patents

Valve anti-reflux d'un brûleur à gaz et ensemble comprenant la valve anti-reflux Download PDF

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Publication number
EP3748229B1
EP3748229B1 EP19177940.4A EP19177940A EP3748229B1 EP 3748229 B1 EP3748229 B1 EP 3748229B1 EP 19177940 A EP19177940 A EP 19177940A EP 3748229 B1 EP3748229 B1 EP 3748229B1
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EP
European Patent Office
Prior art keywords
valve
gas
backflow prevention
support structure
fan
Prior art date
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EP19177940.4A
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German (de)
English (en)
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EP3748229A1 (fr
Inventor
Libor Kralicek
Jiri Pasek
Petra ZEVENBERGEN
Juergen Middendorp
Jaroslav Volavy
Andreas Kammerahl
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Pittway SARL
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Pittway SARL
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Priority to EP19177940.4A priority Critical patent/EP3748229B1/fr
Publication of EP3748229A1 publication Critical patent/EP3748229A1/fr
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Publication of EP3748229B1 publication Critical patent/EP3748229B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/82—Preventing flashback or blowback
    • F23D14/825—Preventing flashback or blowback using valves

Definitions

  • the present patent application relates to a backflow prevention valve and fan module housing for a gas burner appliance. Further on, the present patent application relates to an assembly comprising such a backflow prevention valve and fan module housing.
  • EP 3 015 768 A1 discloses an assembly comprising a gas valve for providing a gas flow, a fan for providing an air flow and a gas/air mixer for mixing the gas with the air thereby providing a gas/air mixture.
  • the fan comprises a fan housing with a fan plate housing part and a fan impeller housing part, wherein the fan impeller housing part is mounted to the fan plate housing part.
  • the fan comprises further a fan impeller, said fan impeller being positioned within an interior space of the fan module housing defined by the fan plate housing part and the fan impeller housing part.
  • a burner door through which the assembly is connectable to a gas burner is provided together with the fan impeller housing part as monolithic element.
  • the assembly disclosed in EP 3 015 768 A1 comprises further a backflow prevention valve which is called non-return valve.
  • the backflow prevention valve is positioned within the fan impeller housing part.
  • the backflow prevention valve comprises a valve frame and a valve flap.
  • EP 3 321 580 A1 discloses a backflow prevention valve for a water heater having a gas burner.
  • EP 1 035 376 A1 discloses another backflow prevention valve for a gas burner.
  • US 2011/272609 A discloses a releasing valve for an inflatable object.
  • a novel backflow prevention valve and fan module housing for a gas burner appliance is provided.
  • the backflow prevention valve and fan module housing according to the present invention is defined in claim 1.
  • the backflow prevention valve comprises a support structure, a valve body and a mounting bracket.
  • the support structure of the backflow prevention valve is provided by a fan module housing of the gas burner appliance.
  • the support structure defines at least partially said gas/air mixture outlet.
  • the support structure comprises posts being an integral part of the support structure.
  • the valve body comprises a valve flap section acting together with a valve seat provided by the support structure, a valve mounting section and valve hinge sections through which the valve flap section is connected to the valve mounting section.
  • the mounting bracket of the backflow prevention valve is used to mount the valve body at the support structure in such a way that the valve mounting section of the valve body is sandwiched between the support structure and the mounting bracket.
  • the mounting bracket comprises recesses or passage openings.
  • Said posts of the support structure act together with said recesses or passage openings of the mounting bracket in such a way that the posts of the support structure penetrate through the recesses or passage openings of the mounting bracket and mount the mounting bracket and thereby the valve body at the support structure when the posts are reformed e.g. by hydroforming. So, when the posts are in a reformed status the same mount or fix the valve body at the support structure.
  • the novel backflow prevention valve and fan module housing has a simply construction requiring a minimum of parts and space.
  • the construction novel backflow prevention valve and fan module housing is cost effective.
  • the novel backflow prevention valve and fan module housing prevents backflow from a chimney in a reliable manner.
  • the support structure is preferably made from a rigid material or from a relative rigid material, preferably from metal.
  • the valve body of the backflow prevention valve is preferably at least partially made from an elastic or flexible material or from a relative elastic or relative flexible material, preferably from rubber or a rubber-like material.
  • the mounting bracket is preferably made from a rigid or from a relative rigid material, preferably from metal.
  • Relative rigid shall mean that the material from which the support structure and the mounting bracket are both made is substantially more rigid than the material from which the valve body is made.
  • Relative flexible or relative elastic shall mean that material from which the valve body is made is substantially more flexible or elastic than the material from which the support structure and the mounting bracket are made.
  • the support structure of the backflow prevention valve comprises ribs having a rounded surface at which the valve hinge sections of the valve body are guided and/or the mounting bracket the backflow prevention valve comprises recesses or cutouts in the region of the valve hinge sections of the valve body. This allows a movement of the valve flap for closing and opening the backflow prevention valve without a damaging risk of the valve body, namely of the valve hinge sections of the valve body.
  • the valve mounting section of the valve body comprises at least one compression protrusion or at least one compression bead at a side facing towards the mounting bracket, wherein said at least one compression protrusion or compression bead is in contact with the mounting bracket and is compressed by the mounting bracket.
  • valve hinge sections of the valve body comprise reinforcement protrusions extending between the valve mounting section and the valve flap section at edges of the valve hinge sections. This provides a reliable functionality of the back-flow prevention valve, namely by providing a defined movement of the valve flap when closing and opening the backflow prevention valve.
  • valve hinge sections and the valve mounting section are completely made from the rubber or the rubber-like material, while the valve flap section is partially made from the rubber or the rubber-like material, wherein the valve flap section comprises a metal core element which is overmolded by the rubber or the rubber-like material.
  • the present disclosure relates to a novel backflow prevention valve and fan module housing of a gas burner appliance and to an assembly of a gas burner appliance comprising the backflow prevention valve and fan module housing.
  • Figure 1 shows a perspective view of an assembly 10 of a gas burner appliance comprising a fan assembly 11, a gas/air mixer 12, a gas valve 13 and a backflow prevention valve 20.
  • the assembly 10 shown is a premix assembly providing a gas/air mixture M (see Figure 1 ) to a burner (not shown) of the gas burner appliance.
  • the gas/air mixture M is provided by the gas/air mixer 12, namely by mixing a flow of gas G (see Figure 1 ) with a flow of air A (see Figure 1 ) within the gas/air mixer 12.
  • the flow of gas G is provided by the gas valve 13.
  • the fan assembly 11 is positioned downstream of the gas/air mixer 12.
  • the fan assembly 11 sucks in the gas/air mixture M which is provided by the gas/air mixer 12.
  • the amount of flow of the gas/air mixture M depends on the fan speed of the fan assembly 11, wherein the fan speed of the fan assembly 11 depends on the desired burner load of the gas burner appliance.
  • the fan speed of the fan assembly 11 defines the amount of the air flow A sucked in through the gas/air mixer 12 and thereby the amount of the gas/air mixture flow M.
  • the opening position of the gas valve 13 is preferably controlled in such a manner that at any desired burner loads and therefore at any fan speeds of the fan assembly 11 the mixing ratio of gas G and air A within the gas/air mixture M is kept constant.
  • the fan assembly 11 comprises a fan module 14 and an electronic module 15.
  • the fan module 14 of the fan assembly 11 has a fan module housing 16 comprising a fan plate housing part 17, a fan impeller housing part 18 and a collar housing part 19.
  • the fan impeller housing part 18 is mounted to the fan plate housing part 17 at a first side of the fan plate housing part 17.
  • the collar housing part 19 is mounted to the fan plate housing part 17 at an opposite second side of the fan plate housing part 17.
  • the collar housing part 19 and the fan impeller housing part 18 are both firmly attached to the fan plate housing part 17.
  • the fan module 14 of the fan assembly 11 further has fan impeller (not visible). Said fan impeller is positioned at the first side of the fan plate housing part 17 within a first interior space of the fan module housing 16 defined by the fan plate housing part 17 and the fan impeller housing part 18. The fan impeller is driven by a fan motor (not visible) of the fan module 14.
  • the fan module 14 of the fan assembly 11 further has a cooling impeller (not visible). Said cooling impeller is positioned at the second side of the fan plate housing part within a second interior space of the fan module housing 16 defined by the fan plate housing part 17 and the collar housing part 19.
  • the fan module 14 of the fan assembly 11 further has first electronic components (not visible) for controlling the operation of the fan assembly 14. Said first electronic components are positioned - together with the cooling impeller 22 and the fan motor - within the second interior space.
  • Said first electronic components may comprise a speed sensor and power components. Said first electronic components may be cooled by said cooling impeller, preferably together with motor winding of the fan motor.
  • the electronic module 15 of the fan assembly 11 has an electronic module housing 21.
  • the electronic module housing 21 of the electronic module 15 is releasably mounted to collar housing part 19 of the fan module housing 16.
  • the electronic module 15 of the fan assembly 11 has second electronic components (not visible) for controlling the operation of the fan assembly 11, said second electronic components being positioned within said electronic module housing 21. Said second electronic components which are positioned in the electronic module housing 21 are electrically or electronically connected to said first electronic components which are positioned in the fan module housing 16.
  • Said electronic module 15 has in addition to the second electronic components third electronic components.
  • Said third electronic components control the operation of other components of the gas burner appliance, e.g. of the gas valve 13 of the assembly 10.
  • Said third electronic components may also control the operation of an ignition device of the gas burner appliance and/or the operation of a water pump the gas burner appliance and/or the operation of a water valve of the gas burner appliance.
  • the gas/air mixer 12 is mounted to the fan assembly 11 in such a way that the fan assembly 11, namely the fan impeller of the same, sucks in the gas/air mixture provided by the gas/air mixer 12 such that said gas/air mixture can flow to a gas/air mixture outlet 22 of a gas/air mixture flow channel 23.
  • Said gas/air mixture flow channel 23 is defined by the fan plate housing part 17 and the fan impeller housing part 18.
  • the gas/air mixer 12 has a gas/air mixer housing 24.
  • the gas/air mixer housing 24 may be an integral element of the fan impeller housing part 18.
  • the gas/air mixer 12 is mounted to the fan assembly 11 in such a way that a gas/air mixture outlet (not visible) of the gas/air mixer housing 24 is in communication with a gas/air mixture inlet (not visible) of a gas/air mixture flow channel 23.
  • a gas/air mixture outlet (not visible) of the gas/air mixer housing 24 is in communication with a gas/air mixture inlet (not visible) of a gas/air mixture flow channel 23.
  • an air inlet 25 of the gas valve housing 24 is visible.
  • the gas valve 13 has a gas valve housing 26.
  • the gas valve 13 is mounted to the gas/air mixer 12 in such a way that a gas outlet (not visible) of the gas valve housing 26 is in communication with a gas inlet (not visible) of the gas/air mixer housing 24.
  • a gas inlet 27 of the gas valve housing 25 is visible.
  • the gas/air mixture flow channel 23 gas the gas/air mixture outlet 22 through which the gas/air mixture can be provided to the burner (not visible) of the gas burner appliance.
  • the backflow prevention valve 20 is positioned in the gas/air mixture flow channel 23 for closing and opening the gas/air mixture outlet 22.
  • the backflow prevention valve 20 prevents backflow from a chimney (not shown) of the gas burner appliance into the assembly 10.
  • the backflow prevention valve 20 comprises a support structure 28, a valve body 29 and a mounting bracket 30.
  • the support structure 28 of the backflow prevention valve 20 is provided by the fan module housing 16, namely by a section of the fan impeller housing part 18.
  • the support structure 28 is preferably made from a rigid material or from a relative rigid material.
  • the support structure 28 is preferably made from a metal like aluminium, wherein the support structure 28 defines at least partially said gas/air mixture outlet 22.
  • the support structure 28 provides posts 32 being an integral part of the support structure 28. So, the posts 32 and the support structure 28 are preferably made from metal.
  • the valve body 29 of the backflow prevention valve 20 is at least partially made from an elastic or flexible material or from a relative elastic or relative flexible material.
  • the valve body 29 of the backflow prevention valve 20 is at least partially made from rubber or a rubber-like material like a silicone material.
  • Said valve body 29 comprises a valve flap section 29a acting together with a valve seat 31 provided by the support structure 28, a valve mounting section 29b and valve hinge sections 29c through which the valve flap section 29a is connected to the valve mounting section 29b.
  • the mounting bracket 30 of the backflow prevention valve 20 is used to mount the valve body 29 at the support structure 28 in such a way that the valve mounting section 29b of the valve body 29 is sandwiched between the support structure 28 and the mounting bracket 30.
  • the mounting bracket 30 is preferably made from a rigid material or from a relative rigid material.
  • the mounting bracket 30 is preferably made from a metal.
  • the support structure 28 and the mounting bracket 30 are both made from metal.
  • the posts 32 of the support structure 28 act together with recesses or passage openings 33 of the mounting bracket 30 in such a way that the posts 32 penetrate through the recesses or passage openings 33 and mount the mounting bracket 30 and thereby the valve body 29 at the support structure 28 when the posts 32 are reformed e.g. by hydroforming. In a reformed status of the posts 32 the posts 32 fix the mounting bracket 30 and the valve body 29 at the support structure 28.
  • the support structure 28 comprises integral ribs 34 having a rounded surface 34a at which the valve hinge sections 29c of the valve body 29 are guided.
  • the mounting bracket 30 comprises recesses or cutouts 35 in the region of the valve hinge sections 29c of the valve body 29.
  • the valve mounting section 29b of the valve body 29 comprises at least one compression protrusion 36 or compression bead at a side of the valve mounting section 29b facing towards the mounting bracket 30. Said at least one compression protrusion 36 or compression bead is in contact with the mounting bracket 30 and is compressed by the mounting bracket 30. This provides a reliable functionality of the backflow prevention valve 20, namely by providing a good sealing in the region of the valve mounting section 29b of the valve body 29.
  • the at least one compression protrusion 36 or compression bead provided at the valve mounting section 29b of the valve body 29 reduces stress transmitted to the valve hinge sections 29c of the valve body 29.
  • valve hinge sections 29c of the valve body 29 comprise reinforcement protrusions 37 extending between the valve mounting section 29b and the valve flap section 29a at edges of the valve hinge sections 29c.
  • Said reinforcement protrusions 37 of the valve hinge sections 29c are provided at opposite sides of the valve body 29, namely at a side facing towards the support structure 28 and at a side facing away from the support structure 28.
  • the reinforcement protrusions 37 provide a reliable functionality of the backflow prevention valve 20, namely by providing a defined movement of the valve flap 29a when closing and opening the backflow prevention valve 20.
  • the valve flap section 29a of the valve body 29 comprises slots 38 at a side facing away from the support structure 28 and facing away from the valve seat 31 provided by the support structure 28.
  • the slots 23 provide flexibility to the valve flap section 29a to compensate flatness imperfections of the valve flap section 29a.
  • valve flap section 29a of the valve body 29 further comprises a sealing protrusion 39 or sealing bead at a side facing towards the support structure 28 and facing towards the valve seat 31 provided by the support structure 28.
  • valve flap section 29a of the valve body 29 facing away from the valve seat 31 is rounded. This reduces the risk that the valve flap section 29a may stick at a surface when the backflow prevention valve 20 is opened.
  • valve flap section 29a of the valve body 29 facing towards from the valve seat 31 is flat. This provides a proper sealing function when the backflow prevention valve 20 is closed.
  • the valve body 29 of the backflow prevention valve 20 is provided by one monolithic element.
  • valve flap section 29a and the valve mounting section 29b and the valve hinge sections 29a of the valve body 29 are all completely made from the rubber or the rubber-like material like the silicone material.
  • valve hinge sections 29c and the valve mounting section 29b of the valve body 29 are completely made from the rubber or the rubber-like material, whereas the valve flap section 29a of the valve body 29 is partially made from the rubber or the rubber-like material.
  • the valve flap section 29a comprises preferably a metal core element which is overmolded by the rubber or the rubber-like material.
  • the weight of the valve flap section 29a of the valve body 29 can be adjusted, e.g. by providing a valve flap section 29a having a weight between 4 grams and 15 grams. This provides a very beneficial sealing function when the backflow prevention valve 20 is closed.
  • the novel backflow prevention valve 20 has a simply construction requiring a minimum of parts and space. The construction is cost effective. The novel backflow prevention valve 20 prevents backflow from a chimney in a reliable manner.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Check Valves (AREA)

Claims (15)

  1. Soupape anti-retour (20) et boîtier de module de ventilateur (16) pour un brûleur à gaz,
    le boîtier de module de ventilateur (16) définissant un canal d'écoulement de mélange gaz/air (23) doté d'une sortie de mélange gaz/air (22) par laquelle un mélange gaz/air peut être fourni à un brûleur à gaz,
    la soupape anti-retour (20) étant positionnée dans le canal d'écoulement de mélange gaz/air (23),
    la soupape anti-retour (20) comprenant :
    une structure de support (28) fournie par le boîtier de module de ventilateur (16),
    la structure de support (28) définissant au moins partiellement ladite sortie de mélange gaz/air (22),
    la structure de support (28) comprenant des montants (32) faisant partie intégrante de la structure de support (28) ;
    un corps de soupape (29),
    le corps de soupape (29) comprenant une section de clapet de soupape (29a) agissant conjointement avec un siège de soupape (31) fourni par la structure de support (28), une section de montage de soupape (29b) et des sections de charnière de soupape (29c) par lesquelles la section de clapet de soupape (29a) est reliée à la section de montage de soupape (29b) ;
    un support de montage (30) pour monter le corps de soupape (29) sur la structure de support (28) de sorte que la section de montage de soupape (29b) du corps de soupape (29) soit prise en sandwich entre la structure de support (28) et le support de montage (30),
    le support de montage (30) comprenant des évidements ou des ouvertures de passage (33),
    les montants (32) de la structure de support (28) agissant ensemble avec les évidements ou les ouvertures de passage (33) du support de montage (30) de sorte que les montants (32) de la structure de support (28) pénètrent à travers les évidements ou les ouvertures de passage (33) du support de montage (30) et montent le support de montage (30) et donc le corps de soupape (29) sur la structure de support (28) dans un état reconstitué des montants (28).
  2. Soupape anti-retour et boîtier de module de ventilateur selon la revendication 1,
    la structure de support (28) étant en un matériau rigide ou en un matériau relativement rigide, de préférence en métal,
    le corps de soupape (29) étant au moins partiellement en un matériau élastique ou flexible ou en un matériau relativement élastique ou flexible, de préférence en caoutchouc ou en un matériau du type caoutchouc,
    le support de montage (30) étant en un matériau rigide ou en un matériau relativement rigide, de préférence en métal.
  3. Soupape anti-retour et boîtier de module de ventilateur selon la revendication 1 ou 2, la structure de support (28) comprenant des nervures (34) ayant une surface arrondie (34a) sur laquelle les sections de charnière de soupape (29c) du corps de soupape (29) sont guidées.
  4. Soupape anti-retour et boîtier de module de ventilateur selon l'une des revendications 1 à 3, le support de montage (30) comprenant des évidements ou des découpes (35) dans la zone des sections de charnière de soupape (29c) du corps de soupape (29).
  5. Soupape anti-retour et boîtier de module de ventilateur selon l'une des revendications 1 à 4,
    la section de montage de soupape (29b) du corps de soupape (29) comprenant au moins une saillie de compression (36) ou au moins un bourrelet de compression sur un côté de la section de montage de soupape (29b) orienté vers le support de montage (30),
    ladite au moins une saillie de compression (36) ou ledit au moins un bourrelet de compression étant en contact avec le support de montage (30) et étant comprimé par le support de montage (30).
  6. Soupape anti-retour et boîtier de module de ventilateur selon l'une des revendications 1 à 5, les sections de charnière de soupape (29c) du corps de soupape (29) comprenant des saillies de renforcement (37) s'étendant entre la section de montage de soupape (29b) et la section de clapet de soupape (29a) sur les bords des sections de charnière de soupape (29c).
  7. Soupape anti-retour et boîtier de module de ventilateur selon la revendication 6, les saillies de renforcement (37) des sections de charnière de soupape (29c) étant situées sur les côtés opposés du corps de soupape (29), à savoir sur un côté orienté vers la structure de support (28) et sur un côté orienté à l'opposé de la structure de support (28).
  8. Soupape anti-retour et boîtier de module de ventilateur selon l'une des revendications 1 à 7, la section de clapet de soupape (29a) du corps de soupape (29) comprenant des fentes (38) sur un côté opposé à la structure de support (28) et opposé au siège de soupape (31) fourni par la structure de support (28).
  9. Soupape anti-retour et boîtier de module de ventilateur selon l'une des revendications 1 à 8, la section de clapet de soupape (29a) du corps de soupape (29) comprenant une saillie d'étanchéité (39) ou un bourrelet d'étanchéité sur un côté orienté vers la structure de support (28) et orienté vers le siège de soupape (31) fourni par la structure de support (28).
  10. Soupape anti-retour et boîtier de module de ventilateur selon l'une des revendications 1 à 9, le corps de soupape (29) étant constitué d'un seul élément monolithique.
  11. Soupape anti-retour et boîtier de module de ventilateur selon l'une des revendications 1 à 10, la section de clapet de soupape (29a), la section de montage de soupape (29b) et les sections de charnière de soupape (29a) étant toutes entièrement en caoutchouc ou en un matériau du type caoutchouc.
  12. Soupape anti-retour et boîtier de module de ventilateur selon l'une des revendications 1 à 11,
    les sections de charnière de soupape (29c) et la section de montage de soupape (29b) étant toutes deux entièrement en caoutchouc ou en un matériau du type caoutchouc,
    la section de clapet de soupape (29a) étant partiellement en caoutchouc ou en un matériau du type caoutchouc, la section de clapet de soupape (29) comprenant un élément central métallique qui est surmoulé par le caoutchouc ou le matériau du type caoutchouc.
  13. Soupape anti-retour et boîtier de module de ventilateur selon l'une des revendications 1 à 12, la section de volet de soupape (29a) ayant un poids compris entre 4 grammes et 15 grammes.
  14. Ensemble (10) d'un brûleur à gaz, comprenant
    un ensemble ventilateur (11) comportant un module de ventilateur (14) et un module électronique (15), ledit module de ventilateur (14) comportant
    un boîtier de module de ventilateur (16) comprenant une partie de boîtier de plaque de ventilateur (17), une partie de boîtier de turbine de ventilateur (18) et une partie de boîtier de collier (19), la partie de boîtier de turbine de ventilateur (18) étant montée sur la partie de boîtier de plaque de ventilateur (17) sur un premier côté de la partie de boîtier de plaque de ventilateur (17), et la partie de boîtier de collier (19) étant montée sur la partie de boîtier de plaque de ventilateur (17) sur un second côté opposé de la partie de boîtier de plaque de ventilateur (17) ; un mélangeur gaz/air (12) doté d'un boîtier de mélange gaz/air (24) destiné à produire un mélange gaz/air en mélangeant du gaz et de l'air,
    le mélangeur gaz/air (12) étant monté sur l'ensemble ventilateur (11) de sorte que l'ensemble ventilateur (11) aspire le mélange gaz/air fourni par le mélangeur gaz/air (12) de sorte que ledit mélange gaz/air s'écoule vers une sortie de mélange gaz/air (22) d'un canal d'écoulement de mélange gaz/air (23) ;
    une soupape anti-retour (20) ;
    caractérisé en ce que
    la soupape anti-retour (20) et le boîtier de module de ventilateur (16) sont fournis selon l'une quelconque des revendications 1 à 13.
  15. Ensemble (10) selon la revendication 14, comprenant
    une soupape de gaz (13) comportant un boîtier de soupape de gaz (26),
    la soupape de gaz (13) étant montée sur le mélangeur gaz/air (12) de sorte qu'une sortie de gaz du boîtier de soupape de gaz (26) soit en communication avec une entrée de gaz du boîtier de mélangeur gaz/air (24),
    le mélangeur gaz/air (12) étant monté sur l'ensemble ventilateur (11) de sorte qu'une sortie de mélange gaz/air du boîtier de mélangeur gaz/air (24) soit en communication avec une entrée de mélange gaz/air du canal d'écoulement de mélange gaz/air (23).
EP19177940.4A 2019-06-03 2019-06-03 Valve anti-reflux d'un brûleur à gaz et ensemble comprenant la valve anti-reflux Active EP3748229B1 (fr)

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Application Number Priority Date Filing Date Title
EP19177940.4A EP3748229B1 (fr) 2019-06-03 2019-06-03 Valve anti-reflux d'un brûleur à gaz et ensemble comprenant la valve anti-reflux

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Application Number Priority Date Filing Date Title
EP19177940.4A EP3748229B1 (fr) 2019-06-03 2019-06-03 Valve anti-reflux d'un brûleur à gaz et ensemble comprenant la valve anti-reflux

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EP3748229A1 EP3748229A1 (fr) 2020-12-09
EP3748229B1 true EP3748229B1 (fr) 2024-05-15

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1035376A1 (fr) * 1999-03-10 2000-09-13 Wolf GmbH Clapet anti-retour pour chauffe-eau à gaz
US8181664B2 (en) * 2010-05-07 2012-05-22 Dongguan Tiger Point, Metal & Plastic Products Co., Ltd. Releasing valve for an inflatable object
EP3015768B1 (fr) 2014-10-29 2019-02-20 Honeywell Technologies Sarl Ensemble comprenant une soupape à gaz, un ventilateur, un mélangeur gaz/air et une fenêtre de brûleur
JP6529364B2 (ja) * 2015-07-09 2019-06-12 リンナイ株式会社 給湯器

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