EP3015768B1 - Assembly comprising a gas valve, a fan, a gas/air mixer and a burner door - Google Patents
Assembly comprising a gas valve, a fan, a gas/air mixer and a burner door Download PDFInfo
- Publication number
- EP3015768B1 EP3015768B1 EP14190817.8A EP14190817A EP3015768B1 EP 3015768 B1 EP3015768 B1 EP 3015768B1 EP 14190817 A EP14190817 A EP 14190817A EP 3015768 B1 EP3015768 B1 EP 3015768B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- fan
- housing part
- valve
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000203 mixture Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 11
- 239000013013 elastic material Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 230000010354 integration Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
Images
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
- F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air
- F23D14/36—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERALÂ ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L5/00—Blast-producing apparatus before the fire
- F23L5/02—Arrangements of fans or blowers
Definitions
- the present patent application relates to an assembly comprising a gas valve, a fan, a gas/air mixer and a burner door.
- DE 10 2004 007 123 B3 discloses an assembly comprising a gas valve for providing gas, a fan for providing air and a gas/air mixer for mixing the gas with the air thereby providing a gas/air mixture.
- the gas valve comprises a gas valve housing providing a gas inlet through which the gas valve is connectable to a gas pipe, and further providing a gas outlet through which the gas valve is connectable to the gas/air mixer.
- the gas/air mixer comprises a gas/air mixer housing providing a gas inlet through which the gas/air mixer is connectable to the gas outlet of the gas valve, providing an air inlet, and providing a gas/air mixture outlet.
- the gas/air mixer is mounted to a support plate of the fan by a bayonet-connection.
- WO 2014/019835 A1 discloses a fan with an integrated manifold for a gas burner.
- the fan comprises a fan housing having a fan housing lower part, a fan housing lid and a protection cover for a fan motor of the fan.
- the fan housing lid carries the fan motor and serves as fan plate housing part.
- the manifold is integrated with the fan housing lower part.
- the fan housing lower part and the fan housing lid define together with the manifold which is integral with fan housing lower part a flow channel for the gas/air mixture.
- EP 2 597 370 A1 discloses an assembly according to the preamble of claim 1.
- Other prior art is disclosed by EP 2 278 224 A2 and by US 2010/0314469 A1 .
- a novel assembly comprising a gas valve, a fan, a gas/air mixer and a burner door is provided.
- the fan comprises a fan housing and a fan motor carrying a fan impeller
- the fan housing comprises a fan plate housing part carrying the fan motor and a fan impeller housing part
- the fan plate housing part and the burner door are commonly provided by one monolithic element.
- the fan impeller housing part comprises grooves for receiving a non-return valve, wherein the non-return valve comprises a valve frame made from a relative rigid material and a valve flap made from a relative elastic material, and wherein the non-return valve is inserted into the grooves of the impeller housing part through the valve frame with the valve flap being attached to the valve frame.
- the claimed invention reduces the space occupied by the assembly comprising the gas valve, the fan, the gas/air mixer and the burner door.
- the claimed invention provides an improved integration of the non-return valve.
- the fan impeller housing part and the monolithic element which commonly provides the fan plate housing part and the burner door define together a flow channel for the gas air mixture, wherein the fan impeller housing part provides an gas/air mixture inlet of said flow channel through which the fan impeller housing part is connectable to the gas/air mixture outlet of the gas/air mixer, and wherein the burner door provides an gas/air mixture outlet of said flow channel.
- the fan impeller housing part is positioned between the gas/air mixer and the monolithic element which commonly provides the fan plate housing part and the burner door, wherein the fan motor and fan impeller are positioned on opposite sides of the monolithic element which commonly provides the fan plate housing part and the burner door, and wherein a shaft of the fan impeller is guided from the fan impeller to the fan motor through an opening of the monolithic element which commonly provides the fan plate housing part and the burner door.
- This further reduces the space occupied by the assembly.
- the monolithic element which commonly provides the fan plate housing part and the burner door comprises an integral element providing a seat for the gas inlet of the gas valve when the assembly is shipped from the factory to the customer, wherein the fan impeller housing part comprises an integral element providing an additional seat for the gas valve housing of the gas valve when the assembly is shipped from the factory to the customer. This reduces the space occupied by the assembly during shipment.
- the invention relates to an assembly comprising a gas valve 10 for providing gas, a fan 11 for providing air, a gas/air mixer 12 for mixing the gas and the air thereby providing the gas/air mixture, and a burner door 13 for connecting the assembly to a gas burner.
- the gas burner is combusting the gas/air mixture within a burner chamber of the same.
- the gas valve 10 comprises a gas valve housing 14 providing a gas inlet 15 through which the gas valve 10 is connectable to a gas pipe, and further providing a gas outlet 16 through which the gas valve 10 is connectable to the gas/air mixer 12.
- the gas valve 10 comprises control elements to control the gas flow though the same.
- the gas/air mixer 12 comprises a gas/air mixer housing 17 providing a gas inlet 18 through which the gas/air mixer 12 s connectable to the gas outlet 16 of the gas valve 11.
- a hose 19 is running between the gas outlet 16 of the gas valve 11 and the gas inlet 18 of the gas/air mixer 12 for connecting the same.
- the hose 19 is made from an elastic material like rubber.
- the gas/air mixer housing 17 further provides an air inlet 20 and a gas/air mixture outlet (not visible). Instead of such an elastic hose, the gas outlet 16 of the gas valve 11 and the gas inlet 18 of the gas/air mixer 12 can also be rigidly connected.
- the fan 11 comprises a fan housing 21 and a fan motor 22 carrying a fan impeller 23.
- the fan housing 21 comprises a fan plate housing part 24 carrying the fan motor 22 and a fan impeller housing part 25.
- the fan plate housing part 24 which carries the fan motor 22 and the burner door 13 for connecting the assembly to a gas burner are commonly provided by one monolithic element 26. This reduces the space occupied by the assembly.
- the fan impeller housing part 25 and the monolithic element 26 which commonly provides the fan plate housing part 24 and the burner door 13 define together a flow channel for the gas/air mixture.
- the fan impeller housing part 25 comprises an gas/air mixture inlet 27 of said flow channel for the gas/air mixture through which the fan impeller housing part 25 is connectable to the gas/air mixture outlet (not visible) of the gas/air mixer 11.
- the burner door 13 provides a gas/air mixture outlet 28 of said flow channel for the gas/air mixture. This further reduces the space occupied by the assembly.
- the fan impeller housing part 25 is positioned between the gas/air mixer 12 and the monolithic element 26 which commonly provides the fan plate housing part 24 and the burner door 13.
- the fan motor 22 of the fan 11 and the fan impeller 23 of the fan 11 are positioned on opposite sides of the monolithic element 26 which commonly provides the fan plate housing part 24 and the burner door 13.
- a shaft 29 of the fan impeller 23 is guided from the fan impeller 23 to the fan motor 22 through an opening (not visible) of the monolithic element 26 which commonly provides the fan plate housing part 24 and the burner door 13. This further reduces the space occupied by the assembly.
- the fan impeller housing part 25 and the monolithic element 26 which commonly provides the fan plate housing part 24 and the burner door 13 are connected to each other by a screw connection comprising several screws 30 extending through mounting holes 33 of the fan impeller housing part 25 and extending in mounting holes 34 of the monolithic element 26.
- the fan impeller housing part 25 and the gas/air mixer 11 are connected to each other by bayonet connection.
- this bayonet connection is provided by protrusions 31 at an outer surface of the gas/air mixer housing 17 acting together with brackets 32 at an outer surface of the fan impeller housing part 25.
- a bayonet lock 49 is provided at the outer surface of the fan impeller housing part 25. Said bayonet lock 49 is provided by a recesses in the outer surface of the fan impeller housing part 25 and acts together with a corresponding protrusion (not visible) of the gas/air mixer 11.
- a sealing ring (not shown) is preferably positioned in a groove 50 at the outer surface of the fan impeller housing part 25.
- Said grooves surrounds the gas/air mixture inlet 27 of the fan impeller housing part 25 and said sealing ring seals the fan impeller housing part 25 against the gas/air mixer housing 17 in the region in which the gas/air mixture flows from the gas/air mixer housing 17 into the gas/air mixture flow channel defined by the fan impeller housing part 25 and by the monolithic element 26 which commonly provides the fan plate housing part 24 and the burner door 13.
- Figure 6 illustrates an alternative bayonet connection between the fan impeller housing part 25 and the gas/air mixer housing 17 of the gas/air mixer 11.
- the bayonet connection may also be provided by protrusions 37 at an inner surface of the shown section of the fan impeller housing part 25 acting together with openings 35 and slots 36 at an inner surface of the shown section the gas/air mixer housing 17 of the gas/air mixer 11.
- the fan impeller housing part 25 and the gas/air mixer housing 17 can also be connected by a screw connection.
- Figure 6 illustrates also the gas/air mixture outlet 38 of the gas/air mixer housing 17 of the gas/air mixer 11.
- the monolithic element 26 which commonly provides the fan plate housing part 24 and the burner door 13 comprises an integral element 39 providing a seat 40 for the gas inlet15 of the gas valve 10 when the assembly is shipped from the factory to the customer.
- the integral element 39 providing the seat 40 is provides by a lug-like protrusion of the monolithic element 26. This reduces the space occupied by the assembly especially during shipment.
- the fan impeller housing part 25 comprises an integral element 41 providing an additional seat 42 for the gas valve housing 14 of the gas valve 10 when the assembly is shipped from the factory to the customer.
- Said element 41 providing the additional seat 42 is in the embodiment of Figure 2 formed integral with one of the brackets 32 at the outer surface of the fan impeller housing part 25. This further reduces the space occupied by the assembly especially during shipment.
- the fan impeller housing part 25 comprises grooves 43 or receiving a non-return valve 44.
- the non-return valve 44 comprises a valve frame 45 made from a rigid material and a valve flap 46 made from an elastic material.
- the valve flap 46 is hinged to a sealing ring 47 made from a elastic material.
- the valve frame 45 comprises a groove 48 for the sealing ring 47.
- the valve flap 46 is attached to the valve frame 45 though the sealing ring 47 when the sealing ring 47 is positioned in the groove 48 of the valve frame 45.
- the non-return valve 44 is inserted into the grooves 43 of the impeller housing part 25 through the valve frame 45 with the valve flap 46 being attached to the valve frame 45. This provides an improved integration of the non-return valve 44.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gas Burners (AREA)
Description
- The present patent application relates to an assembly comprising a gas valve, a fan, a gas/air mixer and a burner door.
-
DE 10 2004 007 123 B3 -
WO 2014/019835 A1 discloses a fan with an integrated manifold for a gas burner. The fan comprises a fan housing having a fan housing lower part, a fan housing lid and a protection cover for a fan motor of the fan. The fan housing lid carries the fan motor and serves as fan plate housing part. The manifold is integrated with the fan housing lower part. The fan housing lower part and the fan housing lid define together with the manifold which is integral with fan housing lower part a flow channel for the gas/air mixture. -
EP 2 597 370 A1 discloses an assembly according to the preamble of claim 1. Other prior art is disclosed byEP 2 278 224 A2 and byUS 2010/0314469 A1 . - Against this background, a novel assembly comprising a gas valve, a fan, a gas/air mixer and a burner door is provided.
- The assembly according to the present invention is defined in claim 1. According to the present invention, the fan comprises a fan housing and a fan motor carrying a fan impeller, wherein the fan housing comprises a fan plate housing part carrying the fan motor and a fan impeller housing part, and wherein the fan plate housing part and the burner door are commonly provided by one monolithic element. The fan impeller housing part comprises grooves for receiving a non-return valve, wherein the non-return valve comprises a valve frame made from a relative rigid material and a valve flap made from a relative elastic material, and wherein the non-return valve is inserted into the grooves of the impeller housing part through the valve frame with the valve flap being attached to the valve frame. The claimed invention reduces the space occupied by the assembly comprising the gas valve, the fan, the gas/air mixer and the burner door. The claimed invention provides an improved integration of the non-return valve.
- Preferably, the fan impeller housing part and the monolithic element which commonly provides the fan plate housing part and the burner door define together a flow channel for the gas air mixture, wherein the fan impeller housing part provides an gas/air mixture inlet of said flow channel through which the fan impeller housing part is connectable to the gas/air mixture outlet of the gas/air mixer, and wherein the burner door provides an gas/air mixture outlet of said flow channel. This further reduces the space occupied by the assembly.
- Preferably, the fan impeller housing part is positioned between the gas/air mixer and the monolithic element which commonly provides the fan plate housing part and the burner door, wherein the fan motor and fan impeller are positioned on opposite sides of the monolithic element which commonly provides the fan plate housing part and the burner door, and wherein a shaft of the fan impeller is guided from the fan impeller to the fan motor through an opening of the monolithic element which commonly provides the fan plate housing part and the burner door. This further reduces the space occupied by the assembly. According to a preferred embodiment, the monolithic element which commonly provides the fan plate housing part and the burner door comprises an integral element providing a seat for the gas inlet of the gas valve when the assembly is shipped from the factory to the customer, wherein the fan impeller housing part comprises an integral element providing an additional seat for the gas valve housing of the gas valve when the assembly is shipped from the factory to the customer. This reduces the space occupied by the assembly during shipment.
- Preferred developments of the invention are provided by the dependent claims and the description which follows. Exemplary embodiments are explained in more detail on the basis of the drawing, in which:
- Figure 1
- shows a perspective view of an assembly according to the present invention comprising a gas valve, a fan, a gas/air mixer and a burner door;
- Figure 2
- shows a partial exploded view of the assembly of
Figure 1 ; - Figure 3
- shows a fan impeller housing part with a non-return valve integrated into the same;
- Figure 4
- shows a section of the fan impeller housing part according to
Figure 3 ; - Figure 5
- shows a partial exploded view of
Figure 4 ; - Figure 6
- shows an alternative for mounting the gas/air mixer to the fan housing;
- Figure 7
- shows the non-return valve; and
- Figure 8
- shows a partial exploded view of
Figure 7 . - The invention relates to an assembly comprising a
gas valve 10 for providing gas, a fan 11 for providing air, a gas/air mixer 12 for mixing the gas and the air thereby providing the gas/air mixture, and aburner door 13 for connecting the assembly to a gas burner. The gas burner is combusting the gas/air mixture within a burner chamber of the same. - The
gas valve 10 comprises agas valve housing 14 providing agas inlet 15 through which thegas valve 10 is connectable to a gas pipe, and further providing agas outlet 16 through which thegas valve 10 is connectable to the gas/air mixer 12. Thegas valve 10 comprises control elements to control the gas flow though the same. - The gas/
air mixer 12 comprises a gas/air mixer housing 17 providing agas inlet 18 through which the gas/air mixer 12 s connectable to thegas outlet 16 of the gas valve 11. As shown inFigure 1 and2 , ahose 19 is running between thegas outlet 16 of the gas valve 11 and thegas inlet 18 of the gas/air mixer 12 for connecting the same. Thehose 19 is made from an elastic material like rubber. The gas/air mixer housing 17 further provides anair inlet 20 and a gas/air mixture outlet (not visible). Instead of such an elastic hose, thegas outlet 16 of the gas valve 11 and thegas inlet 18 of the gas/air mixer 12 can also be rigidly connected. - The fan 11 comprises a fan housing 21 and a
fan motor 22 carrying afan impeller 23. The fan housing 21 comprises a fan plate housing part 24 carrying thefan motor 22 and a fanimpeller housing part 25. - The fan plate housing part 24 which carries the
fan motor 22 and theburner door 13 for connecting the assembly to a gas burner are commonly provided by onemonolithic element 26. This reduces the space occupied by the assembly. - The fan impeller housing
part 25 and themonolithic element 26 which commonly provides the fan plate housing part 24 and theburner door 13 define together a flow channel for the gas/air mixture. The fanimpeller housing part 25 comprises an gas/air mixture inlet 27 of said flow channel for the gas/air mixture through which the fanimpeller housing part 25 is connectable to the gas/air mixture outlet (not visible) of the gas/air mixer 11. Theburner door 13 provides a gas/air mixture outlet 28 of said flow channel for the gas/air mixture. This further reduces the space occupied by the assembly. - The fan
impeller housing part 25 is positioned between the gas/air mixer 12 and themonolithic element 26 which commonly provides the fan plate housing part 24 and theburner door 13. Thefan motor 22 of the fan 11 and thefan impeller 23 of the fan 11 are positioned on opposite sides of themonolithic element 26 which commonly provides the fan plate housing part 24 and theburner door 13. Ashaft 29 of thefan impeller 23 is guided from thefan impeller 23 to thefan motor 22 through an opening (not visible) of themonolithic element 26 which commonly provides the fan plate housing part 24 and theburner door 13. This further reduces the space occupied by the assembly. - The fan
impeller housing part 25 and themonolithic element 26 which commonly provides the fan plate housing part 24 and theburner door 13 are connected to each other by a screw connection comprisingseveral screws 30 extending throughmounting holes 33 of the fanimpeller housing part 25 and extending inmounting holes 34 of themonolithic element 26. - The fan
impeller housing part 25 and the gas/air mixer 11 are connected to each other by bayonet connection. According to the embodiment shown inFigures 1 and2 , this bayonet connection is provided byprotrusions 31 at an outer surface of the gas/air mixer housing 17 acting together withbrackets 32 at an outer surface of the fanimpeller housing part 25. A bayonet lock 49 is provided at the outer surface of the fanimpeller housing part 25. Said bayonet lock 49 is provided by a recesses in the outer surface of the fanimpeller housing part 25 and acts together with a corresponding protrusion (not visible) of the gas/air mixer 11. A sealing ring (not shown) is preferably positioned in a groove 50 at the outer surface of the fanimpeller housing part 25. Said grooves surrounds the gas/air mixture inlet 27 of the fanimpeller housing part 25 and said sealing ring seals the fanimpeller housing part 25 against the gas/air mixer housing 17 in the region in which the gas/air mixture flows from the gas/air mixer housing 17 into the gas/air mixture flow channel defined by the fanimpeller housing part 25 and by themonolithic element 26 which commonly provides the fan plate housing part 24 and theburner door 13. -
Figure 6 illustrates an alternative bayonet connection between the fanimpeller housing part 25 and the gas/air mixer housing 17 of the gas/air mixer 11. As shown inFigure 6 , the bayonet connection may also be provided byprotrusions 37 at an inner surface of the shown section of the fanimpeller housing part 25 acting together withopenings 35 andslots 36 at an inner surface of the shown section the gas/air mixer housing 17 of the gas/air mixer 11. - Instead of such a bayonet connection, the fan
impeller housing part 25 and the gas/air mixer housing 17 can also be connected by a screw connection. -
Figure 6 illustrates also the gas/air mixture outlet 38 of the gas/air mixer housing 17 of the gas/air mixer 11. - The
monolithic element 26 which commonly provides the fan plate housing part 24 and theburner door 13 comprises an integral element 39 providing a seat 40 for the gas inlet15 of thegas valve 10 when the assembly is shipped from the factory to the customer. The integral element 39 providing the seat 40 is provides by a lug-like protrusion of themonolithic element 26. This reduces the space occupied by the assembly especially during shipment. - The fan
impeller housing part 25 comprises an integral element 41 providing an additional seat 42 for thegas valve housing 14 of thegas valve 10 when the assembly is shipped from the factory to the customer. Said element 41 providing the additional seat 42 is in the embodiment ofFigure 2 formed integral with one of thebrackets 32 at the outer surface of the fanimpeller housing part 25. This further reduces the space occupied by the assembly especially during shipment. - The fan
impeller housing part 25 comprisesgrooves 43 or receiving anon-return valve 44. - The
non-return valve 44 comprises avalve frame 45 made from a rigid material and avalve flap 46 made from an elastic material. Thevalve flap 46 is hinged to a sealingring 47 made from a elastic material. - The
valve frame 45 comprises agroove 48 for the sealingring 47. Thevalve flap 46 is attached to thevalve frame 45 though the sealingring 47 when the sealingring 47 is positioned in thegroove 48 of thevalve frame 45. - The
non-return valve 44 is inserted into thegrooves 43 of theimpeller housing part 25 through thevalve frame 45 with thevalve flap 46 being attached to thevalve frame 45. This provides an improved integration of thenon-return valve 44. -
- 10
- gas valve
- 11
- fan
- 12
- gas/air mixer
- 13
- burner door
- 14
- gas valve housing
- 15
- gas inlet
- 16
- gas outlet
- 17
- gas/air mixer housing
- 18
- gas inlet
- 19
- hose
- 20
- air inlet
- 21
- fan housing
- 22
- fan motor
- 23
- fan impeller
- 24
- fan plate housing part
- 25
- fan impeller housing part
- 26
- monolithic element
- 27
- gas/air mixture inlet
- 28
- gas/air mixture outlet
- 29
- shaft
- 30
- screw
- 31
- protrusion
- 32
- bracket
- 33
- mounting hole
- 34
- mounting hole
- 35
- opening
- 36
- slot
- 37
- protrusion
- 38
- gas/air mixture outlet
- 39
- integral element
- 40
- seat
- 41
- integral element
- 42
- seat
- 43
- groove
- 44
- non-return valve
- 45
- valve frame
- 46
- valve flap
- 47
- sealing ring
- 48
- groove
- 49
- bayonet lock
- 50
- groove
Claims (6)
- Assembly comprisinga gas valve (10) for providing gas,a fan (11) for providing air,a gas/air mixer (12) for providing a gas/air mixture, anda burner door (13) for connecting the assembly to a gas burner;wherein the gas valve (10) comprises a gas valve housing (14) providing a gas inlet (15) through which the gas valve (10) is connectable to a gas pipe, and further providing a gas outlet (16) through which the gas valve (10) is connectable to the gas/air mixer (12);wherein the gas/air mixer (12) comprises a gas/air mixer housing (17) providing a gas inlet (18) through which the gas/air mixer (12) is connectable to the gas outlet (16) of the gas valve (10), providing an air inlet (20), and further providing an gas/air mixture outlet;wherein the fan (11) comprises a fan housing (21) and a fan motor (22) carrying a fan impeller (23),wherein the fan housing (21) comprises a fan plate housing part (24) carrying the fan motor (22) and a fan impeller housing part (25),characterized in that
the fan plate housing part (24) and the burner door (13) are commonly provided by one monolithic element (26),
the fan impeller housing part (25) comprises grooves (43) for receiving a non-return valve (44);
the non-return valve (44) comprises a valve frame (45) made from a rigid material and a valve flap (46) made from an elastic material;
the non-return valve (44) is inserted into the grooves (43) of the impeller housing part (25) through the valve frame (45) with the valve flap (46) being attached to the valve frame (45). - Assembly as claimed in claim 1, characterized in thatthe fan impeller housing part (25) and the monolithic element (26) which commonly provides the fan plate housing part (24) and the burner door (13) define together a flow channel for the gas air mixture;the fan impeller housing part (25) provides an gas/air mixture inlet (27) of said flow channel through which the fan impeller housing part (25) is connectable to the gas/air mixture outlet of the gas/air mixer (12);the burner door (13) provides an gas/air mixture outlet (28) of said flow channel.
- Assembly as claimed in claim 1 or 2, characterized in thatthe fan impeller housing part (25) is positioned between the gas/air mixer (12) and the monolithic element (26) which commonly provides the fan plate housing part (24) and the burner door (13);the fan motor (22) and fan impeller (23) are positioned on opposite sides of the monolithic element (26) which commonly provides the fan plate housing part (24) and the burner door (12);a shaft (29) of the fan impeller (23) is guided from the fan impeller (23) to the fan motor (22) through an opening of the monolithic element (26) which commonly provides the fan plate housing part (24) and the burner door (13).
- Assembly as claimed in claim 3, characterized in thatthe fan impeller housing part (25) and the monolithic element (26) which commonly provides the fan plate housing part (24) and the burner door (13) are connected to each other by a screw connection;the fan impeller housing part (25) and the gas/air mixer (12) are connected to each other by bayonet connection or a screw connection.
- Assembly as claimed in one of claims 1 to 4, characterized in thatthe monolithic element (26) which commonly provides the fan plate housing part (24) and the burner door (13) comprises an integral element (39) providing a seat (40) for the gas inlet (15) of the gas valve (10) when the assembly is shipped from the factory to the customer;the fan impeller housing part (25) comprises an integral element (41) providing an additional seat (42) for the gas valve housing (14) of the gas valve (10) when the assembly is shipped from the factory to the customer.
- Assembly as claimed in one of claims 1 to 5, characterized in thatthe valve flap (46) is hinged to a sealing ring (47) made from an elastic material;the valve frame (45) comprises a groove (48) for the sealing ring (47) so that the valve flap (46) is attached to the valve frame (45) though the sealing ring (47) when the sealing ring (47) is positioned in the groove (48) of the valve frame (45).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14190817.8A EP3015768B1 (en) | 2014-10-29 | 2014-10-29 | Assembly comprising a gas valve, a fan, a gas/air mixer and a burner door |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14190817.8A EP3015768B1 (en) | 2014-10-29 | 2014-10-29 | Assembly comprising a gas valve, a fan, a gas/air mixer and a burner door |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3015768A1 EP3015768A1 (en) | 2016-05-04 |
EP3015768B1 true EP3015768B1 (en) | 2019-02-20 |
Family
ID=51845298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14190817.8A Active EP3015768B1 (en) | 2014-10-29 | 2014-10-29 | Assembly comprising a gas valve, a fan, a gas/air mixer and a burner door |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP3015768B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019112644A1 (en) * | 2019-05-14 | 2020-11-19 | Ebm-Papst Landshut Gmbh | Fan housing of a gas fan with redundant non-return valves |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3531017B1 (en) | 2018-02-26 | 2020-10-21 | Honeywell Technologies Sarl | Gas/air mixing device for a gas burner and assembly comprising a gas/air mixing device and a fan |
EP3702619B1 (en) | 2019-02-26 | 2022-04-06 | Ademco CZ s.r.o. | Fan assembly for a gas burner appliance and assembly comprising the fan assembly |
EP3748229B1 (en) | 2019-06-03 | 2024-05-15 | Pittway Sarl | Backflow prevention valve of a gas burner appliance and assembly comprising the backflow prevention valve |
EP3913284B1 (en) | 2020-05-19 | 2023-10-18 | Pittway Sarl | Gas/air mixing device of a gas burner |
DE102022004697A1 (en) * | 2022-12-14 | 2024-06-20 | Truma Gerätetechnik GmbH & Co. KG | Device for heating a medium |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20308866U1 (en) * | 2003-06-06 | 2003-08-14 | Buderus Heiztechnik Gmbh, 35576 Wetzlar | Non-return flap, for the gas/air flow channel from the fan blower to the gas burning surfaces in a multi-stage gas burner, is a thin blade mounted at one end with a seal around its circumference and tensed against the channel wall |
DE102004007123B3 (en) | 2004-02-12 | 2005-08-18 | Honeywell B.V. | Mixing device for mixing gas and combustion air for a gas burner comprises a gas regulating unit arranged on a monolithic unit consisting of a housing and a Venturi nozzle |
DE102006057086B8 (en) * | 2006-12-04 | 2009-01-29 | Minebea Co., Ltd. | Blower for a gas combustion system |
DE102007022008B4 (en) * | 2007-05-08 | 2009-02-26 | Saia-Burgess Dresden Gmbh | Combined fan / gas valve unit |
IT1395189B1 (en) * | 2009-07-22 | 2012-09-05 | Ln 2 Srl Socio Unico | AIR-GAS MIXER DEVICE, PARTICULARLY FOR PRE-MIXING BURNER APPLIANCES. |
IT1396978B1 (en) * | 2009-12-18 | 2012-12-20 | Sit La Precisa Spa Con Socio Unico | SYSTEM FOR CONNECTING A VALVE UNIT TO A FAN STRUCTURE OF AN AIR-GAS MIXING DEVICE FOR POWERING BOILER BURNERS AND SIMILAR EQUIPMENT |
ITPD20110373A1 (en) * | 2011-11-24 | 2013-05-25 | Ln 2 Srl Socio Unico | AIR-GAS MIXER DEVICE FOR COMBUSTIBLE GAS BURNERS WITH PRE-MIXING |
DE202012012538U1 (en) | 2012-08-03 | 2013-04-29 | Ebm-Papst Landshut Gmbh | Blower with integrated manifold |
-
2014
- 2014-10-29 EP EP14190817.8A patent/EP3015768B1/en active Active
Non-Patent Citations (1)
Title |
---|
None * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019112644A1 (en) * | 2019-05-14 | 2020-11-19 | Ebm-Papst Landshut Gmbh | Fan housing of a gas fan with redundant non-return valves |
Also Published As
Publication number | Publication date |
---|---|
EP3015768A1 (en) | 2016-05-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3015768B1 (en) | Assembly comprising a gas valve, a fan, a gas/air mixer and a burner door | |
US8821129B2 (en) | Fan unit for filter fans | |
US8128355B2 (en) | Fan for a gas burner system | |
EP2707603B1 (en) | Apparatus for regulated delivery of a gas, notably respiratory assistance apparatus | |
US9677571B2 (en) | Device for the passage of air | |
CN1749579B (en) | Blower having a carrying frame | |
CN106460842A (en) | Variable volume ratio scroll compressor | |
US10060617B2 (en) | Lamp and air-guiding ring thereof | |
US10486092B2 (en) | Aquarium filter arrangement with vibration isolation | |
US20120163956A1 (en) | Pressure Compensating Wet Seal Chamber | |
CN113366189A (en) | Rotary piston pump with filter | |
JP5934515B2 (en) | Drainage pump | |
KR101549083B1 (en) | Damper for blower | |
KR101559119B1 (en) | The auto ventilation device for interrupting the back flow | |
EP3748229B1 (en) | Backflow prevention valve of a gas burner appliance and assembly comprising the backflow prevention valve | |
JP6555101B2 (en) | Seat blower, seat air conditioner | |
ES2910188T3 (en) | Set of parts and procedure for the manufacture of a radial fan | |
CN216041634U (en) | Water outlet assembly convenient to rotate | |
ITBO20040436A1 (en) | MOTOR VEHICLE AERATOR DEVICE | |
US20180238345A1 (en) | Connector unit for a fan | |
US20240035485A1 (en) | Interchangeable modular cutoff for centrifugal blowers | |
CN209857188U (en) | Indoor machine | |
US20230235739A1 (en) | Pump With Rotary Valve | |
CN210599480U (en) | Aerodynamic device | |
EP1058009B1 (en) | Improvements to ultracompact air extractors for bathrooms |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20161101 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20180829 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602014041179 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1098680 Country of ref document: AT Kind code of ref document: T Effective date: 20190315 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20190220 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190620 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190520 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190521 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190520 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190620 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1098680 Country of ref document: AT Kind code of ref document: T Effective date: 20190220 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602014041179 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 |
|
26N | No opposition filed |
Effective date: 20191121 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191031 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191029 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191031 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20191031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191031 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20191029 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191031 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191029 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191029 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20141029 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 602014041179 Country of ref document: DE Owner name: PITTWAY SARL, CH Free format text: FORMER OWNER: HONEYWELL TECHNOLOGIES SARL, ROLLE, CH |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190220 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230827 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20231127 Year of fee payment: 10 |