EP0657692A2 - Ventilateur pour brûleur à prémélange opérant au gaz - Google Patents

Ventilateur pour brûleur à prémélange opérant au gaz Download PDF

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Publication number
EP0657692A2
EP0657692A2 EP94119088A EP94119088A EP0657692A2 EP 0657692 A2 EP0657692 A2 EP 0657692A2 EP 94119088 A EP94119088 A EP 94119088A EP 94119088 A EP94119088 A EP 94119088A EP 0657692 A2 EP0657692 A2 EP 0657692A2
Authority
EP
European Patent Office
Prior art keywords
fan according
burner fan
impeller
burner
gas
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.)
Granted
Application number
EP94119088A
Other languages
German (de)
English (en)
Other versions
EP0657692A3 (fr
EP0657692B1 (fr
Inventor
Wolfgang Dr. Amrhein
Fritz Schmider
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.)
Ebm Papst St Georgen GmbH and Co KG
Original Assignee
Papst Motoren GmbH and Co KG
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 Papst Motoren GmbH and Co KG filed Critical Papst Motoren GmbH and Co KG
Priority to EP96115019A priority Critical patent/EP0762051B1/fr
Publication of EP0657692A2 publication Critical patent/EP0657692A2/fr
Publication of EP0657692A3 publication Critical patent/EP0657692A3/fr
Application granted granted Critical
Publication of EP0657692B1 publication Critical patent/EP0657692B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • 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
    • 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
    • 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
    • F23D14/62—Mixing devices; Mixing tubes
    • 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
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/82—Preventing flashback or blowback
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/101—Flame diffusing means characterised by surface shape
    • F23D2203/1017—Flame diffusing means characterised by surface shape curved
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/102—Flame diffusing means using perforated plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/105—Porous plates

Definitions

  • the present invention relates to a burner blower for gas premix burners, in particular for gas combustion in boilers, with a blower chamber provided with openings for the combustion mixture with at least one flame partition permeable to the combustion mixture, a blower housing part, a blower wheel and blower in front of the blower chamber a fan electronics are arranged.
  • the combustible mixture for example air + gas
  • the combustible mixture is mixed upstream of the blower or after the blower but before the burner, conveyed into the combustion chamber by means of the blower and ignited there.
  • the flammable and in most cases aggressive mixture can get into the inner area of the blower drive and damage sensitive components of the electronics and bearing parts etc. or, in the event of sparks, the gas mixture can ignite in the winding or printed circuit board.
  • the present invention has for its object to avoid the above disadvantages and to provide a burner fan with which contacting the gas or the combustion mixture with the fan electronics and the electric drive motor is avoided.
  • this is achieved in that the impeller is arranged within the blower chamber and the components of the combustion mixture are brought together in the vacuum region of the impeller.
  • the present invention is based on the knowledge that the known disadvantages can be avoided by the fact that only the air to be mixed with the combustion mixture flows in the area of the motor electronics and the electric drive motor itself and such a pressure drop is generated within the blower chamber that the combustion mixture and that Combustion gas supplied to the air only occurs in a vacuum area of the fan.
  • the combustion mixture exits into the blower chamber without additional mixture-guiding housing parts.
  • the blower 50 has a drive motor 51 which is fastened to a blower housing part 5.
  • the housing part 5 is designed as a flange plate, into whose first opening 6 the drive motor 51 projects, namely in the direction of the combustion chamber 55.
  • a gap 14, in particular an annular gap 14 is formed, which can have a constriction 81 in the axial and / or circumferential direction.
  • the gap 14 preferably narrows in the direction of flow. In order to favor the flow, the narrowing should take place without abrupt transitions, such as curves 74, 75, for example.
  • the drive motor 51 preferably a collectorless external rotor motor, is connected to the housing part 5 via fastening elements together with its fan electronics 12 including a printed circuit board.
  • the connection of the drive motor 51 to the housing part 5 can also take place via webs 84 molded onto the housing part (FIG. 8).
  • a carrier part which is designed as a pot 76, contains an impeller 8 with blades 9, preferably as a one-piece injection or cast part.
  • the pot 76 is attached to the outer jacket of the cup-shaped rotor 7 of the drive motor 51 by means of adhesive and / or a press fit.
  • the burner 70 shown in the embodiment of FIGS. 1 and 2 has the shape of a hemisphere with flame partitions 1 to 4, which can be designed as perforated plates, which have a sieve-like perforation, which becomes ever finer from flame partitions 1 to 4.
  • the fuel mixture for example air + gas
  • the flame partitions 2 and 4 are arranged essentially in parallel at a distance from one another and are fastened to the housing part 5 at the end of the semicircle via an insulating layer.
  • the inner flame partition 1 is arranged centrally to the fan 50 and forms a blower chamber 36, which is limited by the underside of the housing part 5 upwards.
  • the blades 9 of the impeller 8 which is designed as a radial wheel in the exemplary embodiment, can be straight, curved backwards or curved forwards, depending on the performance and noise requirements.
  • An upper cover 88 and a lower cover 89 limit the impeller 8 in the axial direction and serve as a guide for the air or fuel mixture (air + gas) flow. They also belong to the connecting path between a gas supply opening 41 and the blower chamber 36.
  • the gas supply takes place via a gas valve device 13, which is fastened to the upper side 56 of the housing part 5 by means of a seal 16 and reaches a gas distribution chamber 17 via the opening 41, which is formed between the fixed underside 58 of the housing part and the rotating cover 88 of the impeller 8.
  • the gas distribution chamber 17 contains a sealing labyrinth on the pressure side, which is formed from ring webs 38 on the impeller 8 and ring webs 40 on the housing part 5.
  • a radial annular gap 77 formed between the webs 37 and 40 and the axial gap present between the housing part 5 and the cover 88 are so narrow that a gas throughput is impeded when the impeller 8 rotates.
  • a labyrinth as a storage labyrinth, which is formed from ring webs and grooves 37, 39 on the impeller 8 and the housing part 5 and is delimited by the impeller 8 and the housing part 5.
  • the geometrical dimensions of the ram labyrinth with respect to the annular gaps 18 and the corresponding axial gaps are such that, in particular when the impeller 8 rotates, the gas is distributed over the entire circumference (Ring channel) promoting back pressure arises and the labyrinth gaps are nevertheless wide enough so that the gas throughput required for the burner operation can take place.
  • a displacement body 28 is arranged in the blower chamber 36 for the flow distribution of the fuel mixture.
  • the most important task of this is to block part of the blower chamber 36 for the main blower flow 83 and to bring about a uniform distribution of the gas-air mixture flow over the flame partitions 1 to 4.
  • the displacement body 28 consists of a body 30 which essentially follows the shape of the flame dividing walls 1 to 4, and has at least one guide vane 29 on its surface facing the flame dividing wall 1, which is shaped or constructed in such a way that it circulates fuel mixture around the The central axis in the blower chamber 36 is largely prevented, the blade 29 forming, together with the surface of the body 30 and the flame partition 1, at least one flow channel 45, as shown in FIG. 3.
  • a lower edge 43 of the impeller 8 plunges into an adapted recess 42 of the displacement body 28 and thus forms a labyrinth over gaps 31, with the result that a deliberately set, slight circular flow 33 (shown in dash-dot lines) is made via openings 32 on the bottom of the body 30. for flushing out the fuel mixture after blocking the gas valve 13 with the fan wheel 8 running.
  • the displacement body 28 can be fastened to the flange partition 1 by screws 65, by means of pins attached to the blades 29 by riveting the pins (not shown), or in an analogous manner.
  • a further improvement in the circular flow 33 is achieved by additional radial blades 34, which are attached to the radially outer region of the blower edge 8 on the underside of the lower cover 89 and, if appropriate, are immersed in an annular recess 49 in the body 30.
  • the flame partition wall 1 which is designed as a perforated plate, can have a special perforation for uniform distribution of the fuel mixture, as shown enlarged in FIGS. 4 and 5.
  • the holes 61 of the flame partition 1 are not completely punched out, but in such a way that tabs 62 remain by partial punching out, which allow a predeterminable guidance of the flows of the fuel mixture.
  • the holes 61 are punched out completely and their back 63 pulled up like a rasp.
  • the flame partitions 1 to 4 can be designed as perforated plates, as metal grids, as ceramic plates with bores or pores.
  • the burner 70 consists of the housing part 5 and other parts previously described, but a different outer shape.
  • the impeller 8 with blades 9 is also firmly connected to the rotor 7 of the drive motor 51 via a pot 76.
  • the gas is conveyed via a gas nozzle 15 through the opening 41 directly into the space 19 between the inner edges 59 of the blades 9 and the pot 76.
  • the rotation of the impeller 8 creates a negative pressure in the space 19, through which the air required for the production of the fuel mixture is simultaneously drawn in through the gap 14. Again, this airflow is over first the electronics 12 out on the circuit board and the drive motor 51 and cools the same.
  • the flame partition 1 (here only one partition) contains a variant with holes on the left and one with pores on the right through which the combustion mixture is conveyed, specifically via the impeller 8, as previously described.
  • the upper cover 88 of the impeller 8 engages partially or completely around the blades 9 with an edge 82, which may protrude radially beyond the lower cover 89, in order to reinforce the axial component of the blow-out direction.
  • covers 88, 89 and possibly the blades 9 are inclined at least in their radially outer region in the direction of the lower part of the blower chamber 36.
  • the displacement body 28 of this exemplary embodiment has a substantially flat, disk-shaped body 30 which is attached to the flame partition wall 1.
  • the combustion mixture is flushed out as previously described according to the circular flow 33.
  • FIG. 7 shows an exemplary embodiment largely corresponding to FIG. 6, wherein instead of the punctiform gas supply via the nozzle 15, a distribution channel 99 is arranged for a uniform gas supply in the entire gap 14 or at least in a partial area thereof. This favors an intensive and even formation of fuel mixture.
  • bodies 86 are accommodated in the blower chamber 36 at the impeller height, which hinder the circulation movement of the fuel mixture around the impeller axis.
  • the aforementioned bodies 86 can also be realized by extensions of the displacement guide vanes 29.
  • FIG. 8 shows a detail of a further exemplary embodiment, in particular for fastening the drive motor 51 with its rotor 7 and the associated drive electronics.
  • the housing part 5 two segment-like parts are excluded, a flange plate 85 and, for example, axially and / or radially arranged webs 84 being retained.
  • the motor 51 is fastened to this flange plate 85 and projects in whole or in part into the burner 70, as in the previously described embodiments.
  • the fan is fully integrated in the burner.
  • the outputs (in the direction of flow) of the openings 6, 41 end in a vacuum region 14, 17, 18, 19 of the inner region of the burner 70.
  • receiving devices 10, 11 are provided in two separate levels.
  • the receiving device is advantageously provided as an annular depression on the upper edge of the pot 76, the depressions 10 also being able to be designed as pockets in which balancing weights are accommodated.
  • the impeller 8 can - depending on the requirement - be designed such that it blows out preferably in radial, axial or in one direction with both axial and radial components or it can also be an axial impeller.
  • the base 71 of the rotor bell 7 faces the combustion chamber 55.
  • a further protection is provided by the continuous cover 89 of the impeller 8, which is preferably arranged on the floor 71 at a distance in the direction of the combustion chamber 55.
  • the displacement body 28 offers triple thermal protection against heat radiation and heat conduction: the flow channels 45 formed by the body 30, its guide vanes 29 and the flame partition 1 are flowed through by the relatively cool gas-air mixture which dissipates the heat into the combustion chamber 55.
  • the displacement body 28 offers a protective shield against the heat radiation from the combustion chamber 55 due to its closed structure.
  • the displacement body 28 has a very high heat storage capacity, so that heat surges can be absorbed without large temperature jumps when the fan is switched off.
  • 6 and 7 show examples of possible variants, specifically a cylindrical or a block-shaped burner 45 or 46 in dash-dotted lines.
  • FIGS. 9 to 11 show a further embodiment of a burner fan 50 according to the invention.
  • the same parts as in FIGS. 1 to 8 are provided with the same reference numerals.
  • the variants shown in FIGS. 1 to 8 can also be combined with respect to the design of the individual parts with the embodiment shown in FIGS. 9 to 11.
  • FIGS. 9 to 11 is on the inside of the housing part designed as a flange plate 5 a bearing support tube 52 is integrally formed. Bearings 53 for a motor shaft 54 of the motor fan 50 are mounted in this bearing support tube 52.
  • the impeller 8, which is connected to the rotor 7, is fastened to the motor shaft 54 at its end protruding from the bearing support tube 52.
  • the stator 60 of the motor fan 50 is arranged concentrically on the bearing support tube 52.
  • the fan wheel 8 has in particular a cup-shaped receiving part 66, into which the rotor 7 projects.
  • the rotor 7 is rotatably connected to the bottom of the receiving part 66 via spacers 64.
  • the receiving part 66 forms a heat shield for the engine.
  • Openings 6 for the air supply are formed in the housing part 5 around the bearing support tube 52 and open in an annular chamber 67 around the bearing support tube 52.
  • the chamber side opposite the openings 6 is formed by the electronics carrier (printed circuit board) 57, which is fastened to the stator 60 and with its outer edge lies tightly against an annular web 68 of the housing part 5. The air flows directly onto the electronics carrier 57 so that it is cooled well.
  • An annular gap 69 is provided between the inner edge of the printed circuit board 57 and the bearing support tube 52, through which the air flows from the chamber 67 into the center of the impeller 8.
  • the blades 9 of the impeller 8 have an inner, annular end wall 72, which partially surrounds the annular web 68 concentrically, a throttle gap 93 being formed in this area, which forms the location of the highest pressure drop in the flow area.
  • the throttle gap 93 opens into the gas distribution chamber 17, which lies in the vacuum region of the fan.
  • the gas supply opening 41 present in the blower housing part 5 opens into an annular one Gas chamber 44, which is closed on its inside by an annular disk 47.
  • openings 48 are formed on a circle, in particular at regular intervals, through which the gas flows uniformly circumferentially into the gas distribution chamber 17.
  • the cover 88 of the impeller 8 facing the housing part 5 forms an annular rim with its inner edge opposite the end wall 72 Opening 73.
  • This opening roughly defines the location of the lowest pressure in the fan, in which the air and the inflowing gas mix and flow together as a combustion mixture into the fan wheel 8 due to the existing suction pressure.
  • the mixing of the air-gas mixture thus lies within the blower chamber 36, specifically in an area that is distant from the electrical area. This is prevented by the flow path according to the invention, specifically by the existing pressure conditions, that gas or the gas-air mixture can get into the area of the electric motor or its electronic control.
  • webs 94 are formed on the outside of the housing part 5 and are arranged in particular in a region of the suction openings 6. These webs 94 serve as cooling and fastening elements for power transistors in motor electronics.
  • a slide arrangement 95 is fastened to the housing part 5 in the area of the suction opening 14, with which it is possible to change the effective flow cross section of the suction openings 14. It can also be seen that electrical connection contacts 97 are provided in the area of the suction opening 14.
  • the invention is not limited to the exemplary embodiments shown and described, but also encompasses all embodiments having the same effect in the sense of the invention. Furthermore, the invention has not yet been limited to the combination of features defined in claim 1, but can also be defined by any other combination of specific features of all the individual features disclosed in total. This means that in principle practically every single feature of claim 1 can be omitted or replaced by at least one single feature disclosed elsewhere in the application. In this respect, claim 1 is only to be understood as a first attempt at formulation for an invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Gas Burners (AREA)
EP94119088A 1993-12-06 1994-12-03 Ventilateur pour brûleur à prémélange opérant au gaz Expired - Lifetime EP0657692B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96115019A EP0762051B1 (fr) 1993-12-06 1994-12-03 Ventilateur pour brûleur à prémélange opérant au gaz

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4341340 1993-12-06
DE4341340 1993-12-06

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP96115019A Division EP0762051B1 (fr) 1993-12-06 1994-12-03 Ventilateur pour brûleur à prémélange opérant au gaz

Publications (3)

Publication Number Publication Date
EP0657692A2 true EP0657692A2 (fr) 1995-06-14
EP0657692A3 EP0657692A3 (fr) 1996-01-24
EP0657692B1 EP0657692B1 (fr) 2000-02-02

Family

ID=6504168

Family Applications (2)

Application Number Title Priority Date Filing Date
EP94119088A Expired - Lifetime EP0657692B1 (fr) 1993-12-06 1994-12-03 Ventilateur pour brûleur à prémélange opérant au gaz
EP96115019A Expired - Lifetime EP0762051B1 (fr) 1993-12-06 1994-12-03 Ventilateur pour brûleur à prémélange opérant au gaz

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP96115019A Expired - Lifetime EP0762051B1 (fr) 1993-12-06 1994-12-03 Ventilateur pour brûleur à prémélange opérant au gaz

Country Status (4)

Country Link
US (2) US5678988A (fr)
EP (2) EP0657692B1 (fr)
AT (2) ATE183300T1 (fr)
DE (3) DE59409120D1 (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59409120D1 (de) * 1993-12-06 2000-03-09 Papst Motoren Gmbh & Co Kg Brennergebläse für Gas-Vormischbrenner
ATE184091T1 (de) * 1996-10-03 1999-09-15 Siabs Industry S R L Vorrichtung zum zuführen eines gas/luft-gemisches zu einem brenner, insbesondere für heizungsanlagen
DE19821833A1 (de) * 1998-05-15 1999-11-18 Bosch Gmbh Robert Lüfter
FR2800444B1 (fr) 1999-10-29 2002-03-08 Ct D Etude Et De Realisation D Emetteur sureleve de chauffage a rayonnement infrarouge et lumineux au gaz en particulier pour alimentation en tres basse pression
US6328442B1 (en) 2000-01-31 2001-12-11 Hewlett-Packard Company Particulate filtering muffler
US7431568B2 (en) * 2004-05-17 2008-10-07 Brown Fred A Draft inducer having a backward curved impeller
US20080280243A1 (en) * 2003-10-02 2008-11-13 Malcolm Swanson Burner assembly
WO2005080871A1 (fr) * 2004-02-17 2005-09-01 Fasco Industries, Inc. Systeme d'alimentation en gaz pourvu d'une soufflante de premelange
EP1781990A4 (fr) * 2004-07-07 2010-10-20 Advanced Propulsion Technologies Inc Bruleur rayonnant
US7785100B1 (en) * 2004-10-01 2010-08-31 Malcolm Swanson Burner assembly with turbulent tube fuel-air mixer
EP1729063A1 (fr) * 2005-06-03 2006-12-06 Systema Polska Sp. z o.o. Radiateur céramique
ITPD20070363A1 (it) * 2007-11-06 2009-05-07 Sit La Precisa Spa Bruciatore, in particolare bruciatore a gas con pre-miscelazione
JP2011506906A (ja) * 2007-12-17 2011-03-03 ベーカート・コンバスチョン・テクノロジー・ベスローテン・フェンノートシャップ 新規の予混合バ―ナ
ITPD20070413A1 (it) * 2007-12-19 2009-06-20 Ln 2 Srl Socio Unico Gruppo ventilatore per bruciatori a gas con pre-miscelazione e apparecchio bruciatore includente detto ventilatore.
IT1391676B1 (it) * 2008-11-07 2012-01-17 Sit La Precisa Spa Con Socio Unico Apparecchio bruciatore a gas con pre-miscelazione
FR2942866B1 (fr) * 2009-03-06 2012-03-23 Mer Joseph Le Porte a bruleur integre pour appareil de chauffage
ITPD20090377A1 (it) * 2009-12-18 2011-06-19 Sit La Precisa S P A Con Socio Uni Co Scheda elettronica per il controllo di gestione di una caldaia con bruciatore a pre-miscelazione, in particolare per bruciatori pre-miscelati a condensazione.
GB2525873A (en) * 2014-05-07 2015-11-11 Worgas Burners Ltd Gas burner
JP6172234B2 (ja) * 2015-10-15 2017-08-02 ダイキン工業株式会社 電動機および送風装置
US10718518B2 (en) 2017-11-30 2020-07-21 Brunswick Corporation Systems and methods for avoiding harmonic modes of gas burners
US11441772B2 (en) 2018-07-19 2022-09-13 Brunswick Corporation Forced-draft pre-mix burner device
US11608983B2 (en) 2020-12-02 2023-03-21 Brunswick Corporation Gas burner systems and methods for calibrating gas burner systems
US12429217B2 (en) 2022-06-09 2025-09-30 Brunswick Corporation Gas burner
US11940147B2 (en) 2022-06-09 2024-03-26 Brunswick Corporation Blown air heating system

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DE59409120D1 (de) * 1993-12-06 2000-03-09 Papst Motoren Gmbh & Co Kg Brennergebläse für Gas-Vormischbrenner

Also Published As

Publication number Publication date
EP0657692A3 (fr) 1996-01-24
EP0657692B1 (fr) 2000-02-02
EP0762051A2 (fr) 1997-03-12
EP0762051B1 (fr) 1999-08-11
DE59408625D1 (de) 1999-09-16
ATE183300T1 (de) 1999-08-15
EP0762051A3 (fr) 1997-04-02
DE4443045A1 (de) 1995-06-08
US5931660A (en) 1999-08-03
ATE189513T1 (de) 2000-02-15
DE59409120D1 (de) 2000-03-09
US5678988A (en) 1997-10-21

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