EP1084369B1 - Regeleinrichtung für gasbrenner - Google Patents
Regeleinrichtung für gasbrenner Download PDFInfo
- Publication number
- EP1084369B1 EP1084369B1 EP99955316A EP99955316A EP1084369B1 EP 1084369 B1 EP1084369 B1 EP 1084369B1 EP 99955316 A EP99955316 A EP 99955316A EP 99955316 A EP99955316 A EP 99955316A EP 1084369 B1 EP1084369 B1 EP 1084369B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- line
- combustion air
- flow
- sensor
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
- F23N5/184—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
- F23N1/022—Regulating fuel supply conjointly with air supply using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
- F23N5/188—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using mechanical means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
- F23N2005/181—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using detectors sensitive to rate of flow of air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/04—Measuring pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2227/00—Ignition or checking
- F23N2227/02—Starting or ignition cycles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2233/00—Ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/16—Fuel valves variable flow or proportional valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2900/00—Special features of, or arrangements for controlling combustion
- F23N2900/05181—Controlling air to fuel ratio by using a single differential pressure detector
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
Definitions
- the invention relates to a control device for gas burners according to the preamble of Claim 1.
- Such a control device is in each case from the JP 60 029516 A and JP 60 000 211 A known.
- Control devices for gas burners serve to provide a gas / air mixture, that is, supplying a gas flow and a combustion air flow to a burner.
- the gas flow through a gas valve is dependent on the combustion air pressure adjustable.
- Control devices for gas burners of the above type are known from the prior art, for. B. EP 0 390 964 A1, well known.
- the pressure is determined by means of a membrane, ie pneumatically.
- the gas flow is regulated by the gas valve.
- this pneumatic path has a variety of disadvantages, all of them restrict the scope of known control devices. That's how they limit you Hysteresis characteristics of the membrane and that between the membrane and the gas valve acting forces the work area and thus the scope.
- the present invention is based on the problem, a To provide control device for gas burners, which avoids the above disadvantages and thus has a wider scope.
- the present invention relates to control devices for gas burners.
- One not shown Burner should be supplied to a gas / air mixture.
- a first line 10 is provided, the the gas flow leads to the burner.
- the first line 10 is associated with a gas valve 11.
- the second line 12 thus leads the combustion air flow to the burner.
- the second line 12 is associated with a blower 13.
- the speed of the Blower 13 determines the combustion air pressure and thus the combustion air flow.
- an aperture or throttle 14 is arranged within the combustion air flow contacting second conduit 12.
- the first line 10 leading to the gas flow opens into Flow direction of the combustion air behind the throttle point 14 in the Combustion air flow leading second line 12.
- a gas nozzle 15 closes the first Line 10 in the region of the second line 12 from. In the flow direction behind the Gas nozzle 15 is therefore present before a gas / air mixture.
- the gas pressure should also by 1mbar increase.
- this is between the first leading the gas flow Line 10 and the combustion air flow leading second line 12 a sensor 16 arranged.
- the sensor 16 is a differential pressure sensor, in particular as Flow meter, anemometer or the like, formed.
- the sensor 16 With a first measuring point 17, the sensor 16 is at the first gas flow leading Line 10 connected. With a second measuring point 18, the sensor 16 is at the Combustion air flow leading second conduit 12 connected. In Flow direction of the gas, the first measuring point 17 is positioned in front of the gas nozzle 15. The second measuring point 18 is in the flow direction of the combustion air before Throttle 14 arranged.
- the gas pressure must be the combustion air pressure correspond.
- the sensor 16 as a flowmeter or anemometer is formed, this means that the flow through the sensor 16 is zero. takes e.g. the combustion air pressure against the gas pressure, the sensor 16 learns a flow from the first line 10 in the direction of the second line 12. Takes however, the combustion air pressure against the gas pressure, so learns the sensor 16th a flow from the second conduit 12 in the direction of the first conduit 10th Due to the flow rate and due to the flow direction can therefore from the sensor 16, the pressure conditions between combustion air pressure and gas pressure be determined.
- the sensor 16 generates depending on the above pressure ratios an electrical or electronic signal 19, which is used to adjust the gas valve 11.
- the electrical or electronic signal 19 is a control or Regulator 20 is supplied, which from the signal 19, a control signal 21 for a the Gas valve 11 associated actuator 22 generates.
- the gas valve 11 can be configured as desired.
- the actuator 22 of the gas valve 11 is controlled such that the gas valve 11 between the States On / Off or On / Off toggles.
- the gas valve 11 At one compared to the gas pressure higher combustion air pressure will consequently produce a control signal 21, on the basis of which the actuator 22, the gas valve 11 opens or activates.
- the gas valve 11 At a in contrast to the gas pressure lower combustion air pressure is due to the Control signal 21 of the actuator 22, the gas valve 11, however, close or deactivate.
- a resulting oscillating signal provides information about the proper functioning of the regulatory system and can therefore be considered Safety signal can be used. As long as the oscillating sensor signal is present, can a gas valve 11 upstream, not shown safety valve activated or be open.
- the control device shown in Figure 1 in the case in which the gas valve 11th is closed, used for air flow measurement.
- the sensor 16 is connected to the second measuring point 18 on the second line 12, namely in the flow direction of the combustion air in front of the throttle point 14, arranged is; and furthermore the sensor 16 with the first measuring point 17 on the first line 10, ie with closed gas valve 11 via the gas nozzle 15 in the flow direction of the Combustion air is arranged after the throttle point 14.
- closed gas valve 11 can therefore with the aid of the sensor 16, the pressure difference across the throttle point 14th determined and thus an air flow measurement are performed.
- Air flow metering can be used to control the parameter range of the blower 13 depending on a configuration of the combustion air supply and flue gas discharge adjust. Also, the air flow measurement of the monitoring and Setting a minimum combustion air supply, which ensures the safe start of the Gas burner is needed.
- a different ratio between Gas flow and air flow can be realized, so a 1: N gas / air composite control.
- a coupling line 23 is provided wherein within the coupling line 23 two constrictions 24, 25 are arranged. at the constrictions 24, 25 are throttling points.
- the coupling line 23 is shown in FIG 2 to the combustion air flow leading second Line 12 in the flow direction of the combustion air to or behind the throttle point 14 connected.
- the leading to the gas flow first line 10 is the Coupling line 23 connected in the flow direction of the gas in front of the gas nozzle 15.
- the sensor 16 is likewise in the same way as in FIG Embodiment according to Figure 1 - between the first line 10 and the second Line 12 is arranged.
- the first Measuring point 17 in the region of the coupling line 23 between the constrictions 24, 25th arranged.
- the second measuring point 18 is again in the region of the second line 12 in FIG Flow direction of the combustion air upstream of the throttle point 14 is arranged.
- the controller 20 generates a Control signal 21 for the actuator 22 of the gas valve 11, such that the signal 19 of the Sensor 16 is guided to an amount corresponding to a pressure difference of zero.
- the arrangement of the coupling line 23 with the devices 21, 25 is thereby realizing a 1: N gas / air composite control, i. that with an increase in the Combustion air pressure of 1 mbar, the gas pressure is increased by N mbar.
- control device is therefore a 1: N gas / air composite control possible.
- the gas pressure in relation to the combustion air pressure are amplified.
- the degree the gain is determined by the constrictions 24, 25.
- one of the constrictions 24, 25 variable or can be made changeable.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
Description
- Fig. 1
- eine erfindungsgemäße Regeleinrichtung mit weiteren Baugruppen nach einem ersten Ausführungsbeispiel der Erfindung in schematisierter Darstellung, und
- Fig. 2
- eine erfindungsgemäße Regeleinrichtung mit weiteren Baugruppen nach einem zweiten Ausführungsbeispiel der Erfindung ebenfalls in schematisierter Darstellung.
- 10
- Leitung
- 11
- Gasventil
- 12
- Leitung
- 13
- Gebläse
- 14
- Drosselstelle
- 15
- Gasdüse
- 16
- Sensor
- 17
- Meßpunkt
- 18
- Meßpunkt
- 19
- Signal
- 20
- Regelgerät
- 21
- Regelungssignal
- 22
- Stellantrieb
- 23
- Koppelleitung
- 24
- Einschnürung
- 25
- Einschnürung
Claims (6)
- Regeleinrichtung für Gasbrenner zur Bereitstellung eines Gas/Luft-Gemisches, nämlich zum Zuführen eines Gasstroms und eines Verbrennungsluftstroms zu einem Brenner, wobei der Gasstrom durch ein Gasventil (11) in Abhängigkeit vom Verbrennungsluftdruck einstellbar ist, wobei zwischen einer den Gasstrom führenden ersten Leitung (10) und einer den Verbrennungsluftstrom führenden zweiten Leitung (12) ein Sensor (16) angeordnet ist, wobei der Sensor (16) mit einem ersten Meßpunkt (17) an der den Gasstrom führenden ersten Leitung (10) und mit einem zweiten Meßpunkt (18) an der den Verbrennungsluftstrom führenden zweiten Leitung (12) gekoppelt ist, und wobei ein vom Sensor erzeugtes elektrisches bzw. elektronisches Signal (19) zur Verstellung des Gasventils (11) verwendet wird, dadurch gekennzeichnet, daßa) der erste Meßpunkt (17) in Strömungsrichtung des Gases vor einer Gasdüse (15) und der zweite Meßpunkt (18) in Strömungsrichtung der Verbrennungsluft vor einer Drosselstelle (14) angeordnet ist, wobei die Gasdüse (15) in Strömungsrichtung der Verbrennungsluft hinter der Drosselstelle (14) in die den Verbrennungsluftstrom führende zweite Leitung (12) mündet,b) der Sensor (16) als Durchflußmesser ausgebildet ist.
- Regeleinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß in Abhängigkeit des vom Durchflußmesser (16) erzeugten elektrischen bzw. elektronischen Signals (19) ein Regelungssignal (21) für einen dem Gasventils (11) zugeordneten Stellantrieb (22) erzeugt wird.
- Regeleinrichtung nach Anspruch 1 oder 2, gekennzeichnet durch eine zwischen der ersten Leitung (10) und der zweiten Leitung (12) verlaufende Koppelleitung (23), wobei innerhalb der Koppelleitung (23) vorzugsweise zwei Einschnürungen (24, 25) angeordnet sind.
- Regeleinrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Koppelleitung (23) an die den Verbrennungsluftstrom führende zweite Leitung (12) in Strömungsrichtung der Verbrennungsluft nach der Drosselstelle (14) angekoppelt ist, und daß die Koppelleitung (23) an die den Gasstrom führende erste Leitung (10) in Strömungsrichtung des Gases vor der Gasdüse (15) angekoppelt ist.
- Regeleinrichtung nach einem oder mehreren der Anspruch 3 oder 4, dadurch gekennzeichnet, daß der erste Meßpunkt (17) im Bereich der Koppelleitung (23) zwischen der ersten Einschnürung (24) und der zweiten Einschnürung (25) und der zweite Meßpunkt (18) im Bereich der zweiten Leitung (10) in Strömungsrichtimg der Verbrennungsluft vor der Drosselstelle (14) angeordnet ist.
- Regeleinrichtung nach einem oder mehreren der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß mindestens eine der Einschnürungen (24, 25) verstellbar bzw. variabel ausgebildet ist
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19824521 | 1998-06-02 | ||
DE19824521A DE19824521B4 (de) | 1998-06-02 | 1998-06-02 | Regeleinrichtung für Gasbrenner |
PCT/EP1999/003670 WO1999063272A1 (de) | 1998-06-02 | 1999-05-27 | Regeleinrichtung für gasbrenner |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1084369A1 EP1084369A1 (de) | 2001-03-21 |
EP1084369B1 true EP1084369B1 (de) | 2003-01-15 |
Family
ID=7869609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99955316A Expired - Lifetime EP1084369B1 (de) | 1998-06-02 | 1999-05-27 | Regeleinrichtung für gasbrenner |
Country Status (9)
Country | Link |
---|---|
US (1) | US6561791B1 (de) |
EP (1) | EP1084369B1 (de) |
JP (1) | JP2002517702A (de) |
KR (1) | KR20010071151A (de) |
CA (1) | CA2321659A1 (de) |
DE (2) | DE19824521B4 (de) |
DK (1) | DK1084369T3 (de) |
ES (1) | ES2186419T3 (de) |
WO (1) | WO1999063272A1 (de) |
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DE102008008589A1 (de) | 2007-02-19 | 2008-08-21 | Vaillant Gmbh | Verfahren zur Kalibrierung eines Strömungssensors |
EP2405198A1 (de) | 2010-07-08 | 2012-01-11 | Vaillant GmbH | Verfahren zur Kalibrierung der Regelung des Brenngas-Luft-Verhältnisses eines brenngasbetriebenen Brenners |
EP2623865A1 (de) | 2012-02-03 | 2013-08-07 | Honeywell Technologies Sarl | Gasbrenner, Betriebsverfahren davon und Brennersystem für mehrere Gase |
ITPD20120030A1 (it) * | 2012-02-09 | 2013-08-10 | Sit La Precisa S P A Con Socio Uni Co | Metodo per il controllo di un bruciatore di una caldaia e sistema di controllo operante in accordo con tale metodo |
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US9612146B2 (en) | 2014-02-07 | 2017-04-04 | Honeywell International, Inc. | Airflow sensor with dust reduction |
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DE102022101305A1 (de) | 2022-01-20 | 2023-07-20 | Ebm-Papst Landshut Gmbh | Verfahren zur fehlersicheren und mageren Zündung eines Brenngas-Luft-Gemisches an einem Gasbrenner |
DE102022107984A1 (de) | 2022-04-04 | 2023-10-05 | Ebm-Papst Landshut Gmbh | Gasregelventil zur elektronischen Druckregelung an einer Gastherme |
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JPS58224226A (ja) * | 1982-06-21 | 1983-12-26 | Matsushita Electric Ind Co Ltd | 燃焼制御装置 |
JPS5969611A (ja) * | 1982-10-14 | 1984-04-19 | Matsushita Electric Ind Co Ltd | 燃焼制御装置 |
JPS60211A (ja) * | 1983-06-15 | 1985-01-05 | Matsushita Electric Ind Co Ltd | ガス燃焼制御装置 |
JPS6029516A (ja) * | 1983-07-26 | 1985-02-14 | Matsushita Electric Ind Co Ltd | ガス燃焼制御装置 |
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JPS60122818A (ja) * | 1983-12-06 | 1985-07-01 | Matsushita Electric Ind Co Ltd | ガス燃焼制御装置 |
US4645450A (en) * | 1984-08-29 | 1987-02-24 | Control Techtronics, Inc. | System and process for controlling the flow of air and fuel to a burner |
DE3911268A1 (de) | 1989-04-07 | 1990-10-11 | Honeywell Bv | Regeleinrichtung fuer gasbrenner |
ATE114367T1 (de) * | 1989-10-30 | 1994-12-15 | Honeywell Inc | Verbrennungsregelung mit mikromessbrücke. |
ATE155868T1 (de) * | 1993-03-04 | 1997-08-15 | Vaillant Gmbh | Heizeinrichtung |
DE4317981A1 (de) * | 1993-05-28 | 1994-12-01 | Ranco Inc | Gas-Luft-Verhältnisregelvorrichtung für einen Temperaturregelkreis für Gasverbrauchseinrichtungen |
DE59304310D1 (de) * | 1993-09-16 | 1996-11-28 | Honeywell Bv | Regeleinrichtung für Gasbrenner |
-
1998
- 1998-06-02 DE DE19824521A patent/DE19824521B4/de not_active Expired - Lifetime
-
1999
- 1999-05-27 ES ES99955316T patent/ES2186419T3/es not_active Expired - Lifetime
- 1999-05-27 US US09/701,664 patent/US6561791B1/en not_active Expired - Lifetime
- 1999-05-27 JP JP2000552436A patent/JP2002517702A/ja active Pending
- 1999-05-27 DE DE59904050T patent/DE59904050D1/de not_active Expired - Lifetime
- 1999-05-27 CA CA002321659A patent/CA2321659A1/en not_active Abandoned
- 1999-05-27 EP EP99955316A patent/EP1084369B1/de not_active Expired - Lifetime
- 1999-05-27 WO PCT/EP1999/003670 patent/WO1999063272A1/de not_active Application Discontinuation
- 1999-05-27 DK DK99955316T patent/DK1084369T3/da active
- 1999-05-27 KR KR1020007011397A patent/KR20010071151A/ko not_active Application Discontinuation
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102008008589A1 (de) | 2007-02-19 | 2008-08-21 | Vaillant Gmbh | Verfahren zur Kalibrierung eines Strömungssensors |
EP1962067A2 (de) | 2007-02-19 | 2008-08-27 | Vaillant GmbH | Verfahren zur Kalibrierung eines Strömungssensors mit einem oder zwei temperatursensitiven Widerständen |
EP2405198A1 (de) | 2010-07-08 | 2012-01-11 | Vaillant GmbH | Verfahren zur Kalibrierung der Regelung des Brenngas-Luft-Verhältnisses eines brenngasbetriebenen Brenners |
EP2623865A1 (de) | 2012-02-03 | 2013-08-07 | Honeywell Technologies Sarl | Gasbrenner, Betriebsverfahren davon und Brennersystem für mehrere Gase |
ITPD20120030A1 (it) * | 2012-02-09 | 2013-08-10 | Sit La Precisa S P A Con Socio Uni Co | Metodo per il controllo di un bruciatore di una caldaia e sistema di controllo operante in accordo con tale metodo |
WO2013117516A1 (en) * | 2012-02-09 | 2013-08-15 | Sit La Precisa S.P.A. Con Socio Unico | A method for controlling a burner of a boiler and a control system operating according to this method |
EP2685168A1 (de) | 2012-07-13 | 2014-01-15 | Honeywell Technologies Sarl | Verfahren und Steuergerät zum Betrieb eines Gasbrenners |
EP2685169A1 (de) | 2012-07-13 | 2014-01-15 | Honeywell Technologies Sarl | Verfahren und Steuergerät zum Betrieb eines Gasbrenners |
EP2685167A1 (de) | 2012-07-13 | 2014-01-15 | Honeywell Technologies Sarl | Verfahren und Steuergerät zum Betrieb eines Gasbrenners |
EP2685167B1 (de) * | 2012-07-13 | 2015-12-16 | Honeywell Technologies Sarl | Verfahren zum Betrieb eines Gasbrenners |
US11149946B2 (en) | 2012-09-15 | 2021-10-19 | Honeywell International Inc. | System and approach for controlling a combustion chamber |
EP2829803A1 (de) | 2013-07-25 | 2015-01-28 | Honeywell Technologies Sarl | Stabilisierung der Verbrennung eines Gasbrenners mittels Fast-Fourier-Transformation (FFT) |
US9612146B2 (en) | 2014-02-07 | 2017-04-04 | Honeywell International, Inc. | Airflow sensor with dust reduction |
EP2966354A1 (de) | 2014-07-08 | 2016-01-13 | Honeywell Technologies Sarl | Verfahren und Steuergerät zum Betrieb eines Gasbrenners |
US10317076B2 (en) | 2014-09-12 | 2019-06-11 | Honeywell International Inc. | System and approach for controlling a combustion chamber |
EP3477201A1 (de) | 2017-10-26 | 2019-05-01 | Honeywell Technologies Sarl | Verfahren zum betrieb eines gasbrennergeräts |
WO2019081464A1 (en) | 2017-10-26 | 2019-05-02 | Honeywell Technologies Sarl | METHOD FOR OPERATING A GAS BURNER APPARATUS |
Also Published As
Publication number | Publication date |
---|---|
DE19824521B4 (de) | 2004-12-23 |
WO1999063272A1 (de) | 1999-12-09 |
CA2321659A1 (en) | 1999-12-09 |
KR20010071151A (ko) | 2001-07-28 |
DE19824521A1 (de) | 1999-12-09 |
US6561791B1 (en) | 2003-05-13 |
JP2002517702A (ja) | 2002-06-18 |
DK1084369T3 (da) | 2003-03-03 |
ES2186419T3 (es) | 2003-05-01 |
DE59904050D1 (de) | 2003-02-20 |
EP1084369A1 (de) | 2001-03-21 |
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