EP2685168A1 - Verfahren und Steuergerät zum Betrieb eines Gasbrenners - Google Patents

Verfahren und Steuergerät zum Betrieb eines Gasbrenners Download PDF

Info

Publication number
EP2685168A1
EP2685168A1 EP20120176353 EP12176353A EP2685168A1 EP 2685168 A1 EP2685168 A1 EP 2685168A1 EP 20120176353 EP20120176353 EP 20120176353 EP 12176353 A EP12176353 A EP 12176353A EP 2685168 A1 EP2685168 A1 EP 2685168A1
Authority
EP
European Patent Office
Prior art keywords
gas
air mixture
burner
mixing ratio
air
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
EP20120176353
Other languages
English (en)
French (fr)
Other versions
EP2685168B1 (de
Inventor
Piet Blaauwwiekel
Gerwin Langius
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.)
Garrett Motion SARL
Original Assignee
Honeywell Technologies SARL
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 Honeywell Technologies SARL filed Critical Honeywell Technologies SARL
Priority to EP12176353.6A priority Critical patent/EP2685168B1/de
Publication of EP2685168A1 publication Critical patent/EP2685168A1/de
Application granted granted Critical
Publication of EP2685168B1 publication Critical patent/EP2685168B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F23N1/025—Regulating fuel supply conjointly with air supply using electrical or electromechanical 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
    • F23N5/184—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/04—Measuring pressure
    • F23N2225/06—Measuring pressure for determining flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed

Definitions

  • the present patent application relates to a method for operating a gas burner. Further on, the present patent application relates to a controller for operating a gas burner.
  • EP 1 084 369 B1 and EP 1 179 159 B1 each disclose a method for operating a gas burner.
  • a gas/air mixture having a defined mixing ratio of gas and air is provided to a burner chamber of the gas burner.
  • the gas/air mixture is provided by mixing an air flow provided by an air duct with a gas flow provided by a gas duct using a mixing device.
  • the quantity of the air flow is adjusted by a fan.
  • the defined mixing ratio of the gas/air mixture is controlled by a controller on basis of a signal provided by an electrical or electronic sensor.
  • the electrical or electronic sensor is coupled to the gas duct and to the air duct.
  • the electrical or electronic sensor is coupled to the gas duct and to a reference point.
  • the electrical or electronic sensor is especially designed as a flow-meter.
  • An actual value corresponding to a pressure ratio between the gas pressure in the gas duct and the air pressure in the air duct or corresponding to a pressure ratio between the gas pressure in the gas duct and the air pressure at the reference point is provided by the electrical or electronic sensor, wherein this actual value is compared with a nominal value.
  • a control variable for a gas valve assigned to the gas duct is generated on basis of the control deviation between the actual value and nominal value, wherein the gas valve is adjusted on basis of this control variable in order to provide the defined mixing ratio of gas and air in the gas/air mixture.
  • the defined mixing ratio of gas and air of the gas/air mixture is kept constant over the entire modulation range of the gas burner.
  • the mixing ratio of the gas/air mixture is kept constant over the entire fan speed range of the fan, either to provide a 1:1 gas-air control having a ratio between the gas pressure and the air pressure of 1:1 over the entire modulation range of the gas burner or to provide a 1:N (N>1) gas-air control having a ratio between the gas pressure and the air pressure of 1:N over the entire modulation range of the gas burner.
  • a so-called ⁇ -value is usually greater than 1.
  • a novel method for operating a gas burner and a novel controller for operating a gas burner are provided.
  • the method for operating a gas burner is defined in the claim 1.
  • the mixing ratio of the gas/air mixture is changed depending on the speed of the fan, whereby the variation of the mixing ratio of the gas/air mixture as a function of the fan speed is allowed only at defined operating conditions of the gas burner.
  • the novel method for operating a gas burner provides over the entire modulation range of the gas burner an optimized mixing ratio of the gas/air mixture, whereby the variation and thereby optimization of the mixing ratio of the gas/air mixture as a function of the fan speed is allowed only if the operating conditions of the gas burner are good enough. This results into a very stable operation of the gas burner.
  • the variation of the mixing ratio of the gas/air mixture as a function of the fan speed is only allowed if a heat exchanger temperature of a heat exchanger positioned within the burner chamber is greater than a temperature threshold and/or if the gas burner has been operated with a defined load for at least a defined time period and/or if the fan speed has been stable for at least a defined time period.
  • the controller for operating a gas burner is defined in the claim 9.
  • FIG. 1 shows a schematic view of a gas burner 10.
  • the gas burner 10 comprises a burner chamber 11 in which combustion of a gas/air mixture takes place during burner-on phases of the gas burner 10.
  • the combustion of the gas/air mixture results into flames 12 monitored by e.g. a flame ionization sensor 13.
  • the flame ionization sensor 13 is an optional component of the gas burner 10.
  • the gas/air mixture is provided to the burner chamber 11 of the gas burner 10 by mixing an air flow with a gas flow.
  • a fan 14 sucks in air flowing through an air duct 15 and gas flowing though a gas duct 16.
  • a gas valve 17 for adjusting the gas flow through the gas duct 16 and a safety valve 18 are assigned to the gas duct 16. The position of the gas valve 17 is adjusted by a pressure regulator 19.
  • the gas/air mixture having a defined mixing ratio of gas and air is provided to the burner chamber 11 of the gas burner 10.
  • the gas/air mixture is provided by mixing the air flow provided by an air duct 15 with a gas flow provided by a gas duct 16.
  • the air flow and the gas flow become preferably mixed by a mixing device.
  • a mixing device can be designed as a Venturi nozzle (not shown).
  • the quantity of the air flow and thereby the quantity of the gas/air mixture flow is adjusted by the fan 14, namely by the speed of the fan 14.
  • the fan speed can be adjusted by an actuator 22 of the fan 14.
  • the defined mixing ratio of the gas/air mixture is controlled by a controller 20 on basis of a signal provided by an electrical or electronic sensor 23.
  • the electrical or electronic sensor 23 is coupled to the gas duct 16 and to a reference point 24.
  • the electrical or electronic sensor 23 is preferably designed as a flow-meter.
  • An actual value corresponding to a pressure ratio between the gas pressure in the gas duct 16 and the air pressure at the reference point 24 is provided by the electrical or electronic sensor 23. This actual value is compared by the controller 20 with a nominal value stored in the controller 20.
  • the controller 20 generates a control variable for the gas valve 17, namely for an actuator 21 of the gas valve 17, on basis of the control deviation between the actual value provided by the electrical or electronic sensor 23 and the nominal value stored in the controller 20.
  • the gas valve position of the gas valve 17 is adjusted by the actuator 21 of the same on basis of this control variable in order to provide the defined mixing ratio of gas and air in the gas/air mixture.
  • the flames 12 resulting form the combustion of the gas/air mixture are used to heat a heat exchanger 25 positioned in the burner chamber 11.
  • a temperature sensor 26 is used to measure a temperature of the heat exchanger 25, especially a temperature of water flowing through the heat exchanger 25.
  • Exhaust gas resulting from the combustion of the gas/air mixture can exit from the burner chamber 11 though an exhaust pipe 28.
  • An exhaust gas sensor 27 assigned to the exhaust pipe 28 can be used to analyze the emissions of the exhaust gas, especially NOx emissions of the same.
  • the exhaust gas sensor 27 is an optional component of the gas burner 10.
  • the mixing ratio of gas and air of the gas/air mixture provided to the burner chamber 11 is not kept constant over the modulation range of the gas burner.
  • the mixing ratio of gas and air of the gas/air mixture provided to the burner chamber 11 is changed as a function on the speed of the fan 14.
  • a gas/air mixture having a mixing ratio of gas and air adapted to provide a stable combustion, especially a stable and secure ignition, of the gas/air mixture.
  • a gas/air mixture having a mixing ratio of gas and air is provided resulting in a combustion with an almost constant output of the flame ionization sensor 13 or alternatively with an almost constant output of the exhaust gas sensor 27.
  • a gas/air mixture having a mixing ratio of gas and air adapted to provide a combustion with reduced emissions.
  • a gas/air mixture having a mixing ratio of gas and air is provided resulting in a combustion with an output of the exhaust gas sensor 27 being smaller that an emission threshold.
  • the mixing ratio of gas and air of the gas/air mixture is freely adjustable as a function of the fan speed of the fan 14. It is possible to use intermediate thresholds between the upper threshold and the lower threshold in order divide this fan speed range into sub-ranges.
  • a gas/air mixture is provided being leaner than the gas/air mixture which is provided for fan speeds of the fan 14 being larger than the upper threshold.
  • a gas/air mixture is provided being leaner than the gas/air mixture which is provided for fan speeds of the fan 14 being smaller than the lower threshold.
  • a gas/air mixture is provided being preferably leaner than the gas/air mixture of the fan 14 which is provided for fan speeds being larger than the upper threshold.
  • a gas/air mixture is provided being richer than the gas/air mixture of the fan 14 which is provided for fan speeds being larger than the upper threshold. It is also possible that for fan speeds being smaller than the lower thresholds a gas/air mixture is provided having the same mixing ratio of gas and air than the gas/air mixture which is provided for fan speeds being larger than the upper threshold.
  • a 1:1 gas-air control having a ratio between the gas pressure and the air pressure of 1:1 is provided.
  • a 1:N (N>1) gas-air control having a ratio between the gas pressure and the air pressure of 1:N is provided.
  • the second section of the modulation range can be divided into subsections by e.g. intermediate thresholds.
  • the controller 20 As a function of on the fan speed of the fan 14 the controller 20 generates an offset value which becomes added to the nominal value for the signal provided by the electrical or electronic sensor 23.
  • the controller 20 As a function on the fan speed of the fan 14 the controller 20 generates an offset value which becomes added to control variable for a gas valve 17.
  • the respective offset value which is a function of the fan speed and which is stored in the controller 20 is freely programmable as a function of the fan speed.
  • the controller 20 blocks the above variation of the mixing ratio of the gas/air mixture as a function of the speed of the fan 14.
  • the variation of the mixing ratio of the gas/air mixture is only allowed if the heat exchanger temperature measured by the temperature sensor 26 is greater than a temperature threshold. If the temperature of the heat exchanger 25 is below the temperature threshold, the defined mixing ratio of gas and air of the gas/air mixture is kept constant over the entire modulation range of the gas burner 10 and thereby over the entire fan speed range of the fan 14. However, if the temperature of the heat exchanger 25 is above the temperature threshold, the defined mixing ratio of gas and air of the gas/air mixture is not kept constant over the modulation range of the gas burner 10. In this case the mixing ratio of gas and air of the gas/air mixture is variable as a function of the fan speed as discussed above.
  • the variation of the mixing ratio of the gas/air mixture is only allowed if the gas burner 10 has been operated with a defined load for at least a defined time period, especially if the burner load has been greater than a burner load threshold for a time period being greater than a time threshold. If the burner load is below the burner load threshold and/or if the time period is below the time threshold, the defined mixing ratio of gas and air of the gas/air mixture is kept constant over the entire modulation range of the gas burner 10 and thereby over the entire fan speed range. However, if the burner load is above the burner load threshold and if the time period is above the time threshold the defined mixing ratio of gas and air of the gas/air mixture is not kept constant over the modulation range of the gas burner 10. In this case the mixing ratio of gas and air of the gas/air mixture is variable as a function of the fan speed as discussed above.
  • the variation of the mixing ratio of the gas/air mixture is only allowed if the fan speed is stable, especially if the variation of the fan speed is lower than a variation threshold for a time period being greater than a time threshold. If the variation of the fan speed is above the variation threshold and/or if the time period is below the time threshold, the defined mixing ratio of gas and air of the gas/air mixture is kept constant over the entire modulation range of the gas burner 10 and thereby over the entire fan speed range. However, if the variation of the fan speed is below the variation threshold and if the time period is above the time threshold the defined mixing ratio of gas and air of the gas/air mixture is not kept constant over the modulation range of the gas burner 10. In this case the mixing ratio of gas and air of the gas/air mixture is variable as a function of the fan speed as discussed above.
  • the controller 20 generates a control variable for the gas valve 17, namely for an actuator 21 of the gas valve 17.
  • the actuator 21 of the gas valve 17 can be a stepper motor.
  • the controller 20 preferably checks the function of the electrical or electronic sensor 23, especially the gain of the electrical or electronic sensor 23.
  • the controller 17 In order to check the function of the electrical or electronic sensor 23, the controller 17 generates an input variable for the actuator 21 by which the actuator 21 and thereby the gas valve 17 become adjusted by a defined degree or amount. If the actuator 21 is a stepper motor, the controller 20 generates an input variable for the stepper motor by which stepper motor is operated over a defined number of steps.
  • the output signal provided by electrical or electronic sensor 23 in response to this operation of the actuator 21 and thereby gas valve 17 is compared by the controller 20 with a nominal output signal expected in response to this operation of the actuator 21. If a deviation between actual output signal of the electrical or electronic sensor 23 and the nominal output signal is greater than a threshold, the controller 20 determines an improper function of the electrical or electronic sensor 23, especially a non tolerable change of the sensor gain of the electrical or electronic sensor 23. If the deviation between actual output signal of the electrical or electronic sensor 23 and the nominal output signal is smaller than the threshold, the controller 20 determines a proper function of the electrical or electronic sensor 23, especially a tolerable change of the sensor gain of the electrical or electronic sensor 23 or no change of the sensor gain.
  • controller 20 determines an improper function of the electrical or electronic sensor 23, especially a non tolerable change of the sensor gain of the electrical or electronic sensor 23, the controller 20 preferably initiates at least one defined action.
  • controller 20 blocks the above variation of the mixing ratio of the gas/air mixture provided to the burner chamber 11 as a function of the speed of the fan 14. Only if the controller 20 determines a proper function of the electrical or electronic sensor 23, the controller 20 will allow the variation of the mixing ratio of the gas/air mixture as a function of the speed of the fan 14.
  • controller 20 In preferred actions initiated by the controller 20 in response to a detected improper function of the electrical or electronic sensor 23 are that the controller 20 generates a service signal indicating that the burner should be inspected by a service person, and/or that the controller 20 performs a calibration for the sensor gain of the electrical or electronic sensor 23, and/or that the controller 20 performs a compensation for the sensor gain shift by a defined offset value, and/or that the gas burner 10 is shut down.

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)
EP12176353.6A 2012-07-13 2012-07-13 Verfahren zum Betrieb eines Gasbrenners Active EP2685168B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12176353.6A EP2685168B1 (de) 2012-07-13 2012-07-13 Verfahren zum Betrieb eines Gasbrenners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12176353.6A EP2685168B1 (de) 2012-07-13 2012-07-13 Verfahren zum Betrieb eines Gasbrenners

Publications (2)

Publication Number Publication Date
EP2685168A1 true EP2685168A1 (de) 2014-01-15
EP2685168B1 EP2685168B1 (de) 2015-10-14

Family

ID=46551391

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12176353.6A Active EP2685168B1 (de) 2012-07-13 2012-07-13 Verfahren zum Betrieb eines Gasbrenners

Country Status (1)

Country Link
EP (1) EP2685168B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3121516A1 (de) * 2015-07-23 2017-01-25 Robert Bosch Gmbh Verfahren zum steuern eines kondensationsheizkessels und heizkessel für die ausführung des verfahrens
EP3228936A1 (de) * 2016-04-07 2017-10-11 Honeywell Technologies Sarl Verfahren zum betrieb eines gasbrennergeräts
EP4155609A1 (de) 2021-09-24 2023-03-29 Pittway Sarl Verfahren und steuergerät zum betrieb eines gasbrennergeräts

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0225655A1 (de) * 1985-11-07 1987-06-16 Nederlandse Industriele Maatschappij NEFIT B.V. Verfahren zum Zünden eines Brenners
EP0770824A2 (de) * 1995-10-25 1997-05-02 STIEBEL ELTRON GmbH & Co. KG Verfahren und Schaltung zur Regelung eines Gasbrenners
EP0863367A1 (de) * 1997-03-05 1998-09-09 Electrowatt Technology Innovation AG Steuer- und Regelgerät für einen Gasbrenner
DE10114901A1 (de) * 2001-03-26 2002-10-10 Invent Gmbh Entwicklung Neuer Technologien Verfahren und Vorrichtung zur Einstellung der Luftzahl
EP1084369B1 (de) 1998-06-02 2003-01-15 Honeywell B.V. Regeleinrichtung für gasbrenner
EP1179159B1 (de) 1999-05-14 2004-11-24 Honeywell B.V. Regeleinrichtung für gasbrenner
EP1522790A2 (de) * 2003-10-08 2005-04-13 Vaillant GmbH Verfahren zur Regelung eines Gasbrenners, insbesondere bei Heizungsanlagen mit Gebläse
DE202005018671U1 (de) * 2004-12-06 2006-03-02 Vaillant Gmbh Regelung eines Heizgerätes
US20070287111A1 (en) * 2004-06-01 2007-12-13 Roberts-Gordon Llc Variable input radiant heater

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004055716C5 (de) * 2004-06-23 2010-02-11 Ebm-Papst Landshut Gmbh Verfahren zur Regelung einer Feuerungseinrichtung und Feuerungseinrichtung (Elektronischer Verbund I)

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0225655A1 (de) * 1985-11-07 1987-06-16 Nederlandse Industriele Maatschappij NEFIT B.V. Verfahren zum Zünden eines Brenners
EP0770824A2 (de) * 1995-10-25 1997-05-02 STIEBEL ELTRON GmbH & Co. KG Verfahren und Schaltung zur Regelung eines Gasbrenners
EP0863367A1 (de) * 1997-03-05 1998-09-09 Electrowatt Technology Innovation AG Steuer- und Regelgerät für einen Gasbrenner
EP1084369B1 (de) 1998-06-02 2003-01-15 Honeywell B.V. Regeleinrichtung für gasbrenner
EP1179159B1 (de) 1999-05-14 2004-11-24 Honeywell B.V. Regeleinrichtung für gasbrenner
DE10114901A1 (de) * 2001-03-26 2002-10-10 Invent Gmbh Entwicklung Neuer Technologien Verfahren und Vorrichtung zur Einstellung der Luftzahl
EP1522790A2 (de) * 2003-10-08 2005-04-13 Vaillant GmbH Verfahren zur Regelung eines Gasbrenners, insbesondere bei Heizungsanlagen mit Gebläse
US20070287111A1 (en) * 2004-06-01 2007-12-13 Roberts-Gordon Llc Variable input radiant heater
DE202005018671U1 (de) * 2004-12-06 2006-03-02 Vaillant Gmbh Regelung eines Heizgerätes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3121516A1 (de) * 2015-07-23 2017-01-25 Robert Bosch Gmbh Verfahren zum steuern eines kondensationsheizkessels und heizkessel für die ausführung des verfahrens
FR3039260A1 (fr) * 2015-07-23 2017-01-27 Bosch Gmbh Robert Procede de gestion d'une chaudiere a condensation et chadiere pour la mise en oeuvre du procede
EP3228936A1 (de) * 2016-04-07 2017-10-11 Honeywell Technologies Sarl Verfahren zum betrieb eines gasbrennergeräts
US10520186B2 (en) 2016-04-07 2019-12-31 Honeywell Technologies Sarl Method for operating a gas burner appliance
EP4155609A1 (de) 2021-09-24 2023-03-29 Pittway Sarl Verfahren und steuergerät zum betrieb eines gasbrennergeräts
WO2023046466A1 (en) 2021-09-24 2023-03-30 Pittway Sarl Method and controller for operating a gas burner appliance

Also Published As

Publication number Publication date
EP2685168B1 (de) 2015-10-14

Similar Documents

Publication Publication Date Title
EP2667097B1 (de) Verfahren zum Betrieb eines Gasbrenners
US8636501B2 (en) Method for regulating and controlling a firing device and firing device
EP3228936B1 (de) Verfahren zum betrieb eines gasbrennergeräts
US9134026B2 (en) Method for operating a gas burner
US7513117B2 (en) Method for operating a furnace
EP2685169B1 (de) Verfahren zum Betrieb eines Gasbrenners
US20080124668A1 (en) Systems and methods for controlling gas pressure to gas-fired appliances
EP2966354B1 (de) Verfahren zum Betrieb eines Gasbrenners
EP3830484B1 (de) Verbrennungsheizersteuerungssystem mit dynamischen sicherheitseinstellungen und zugehörige verfahren
EP3830483B1 (de) Verbrennungssystem mit entnommenem kraftstoff und zugehöriges verfahren
EP2631541B1 (de) Verfahren zum Betrieb eines Gasbrenners
EP2685168B1 (de) Verfahren zum Betrieb eines Gasbrenners
GB2599423A (en) Method for operating a combustion device, combustion device and heater
KR102011552B1 (ko) 가스 엔진
EP2685167B1 (de) Verfahren zum Betrieb eines Gasbrenners
EP2623865B1 (de) Gasbrenner, Betriebsverfahren davon und Brennersystem für mehrere Gase
EP3043115B1 (de) Verfahren zum Betreiben eines Vormischgasbrenners
EP4092325B1 (de) Verfahren und steuergerät zum betrieb eines gasbrennergeräts
EP4191135A1 (de) Luft-gas-mischeinheit für eine luft-gas-mischungsverbrennungsvorrichtung
EP4119846A1 (de) Verfahren und steuergerät zum betrieb eines gasbrennergeräts
US11287131B2 (en) Method for operating a gas burner appliance
EP4033148B1 (de) Verfahren und steuergerät zum betrieb eines gasbrennergeräts
EP4180718A1 (de) Verfahren zur steuerung eines gasheizkessels
EP4155609A1 (de) Verfahren und steuergerät zum betrieb eines gasbrennergeräts
EP4119845A1 (de) Verfahren und steuergerät zum betrieb eines gasbrennergeräts

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

17P Request for examination filed

Effective date: 20140709

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

17Q First examination report despatched

Effective date: 20140826

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150422

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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: AT

Ref legal event code: REF

Ref document number: 755433

Country of ref document: AT

Kind code of ref document: T

Effective date: 20151015

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602012011483

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20151014

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 755433

Country of ref document: AT

Kind code of ref document: T

Effective date: 20151014

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20151014

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: 20151014

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: 20151014

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: 20151014

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: 20160214

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: 20160114

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: 20151014

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: 20151014

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: 20160215

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: 20151014

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: 20151014

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: 20151014

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: 20151014

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: 20151014

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: 20160115

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602012011483

Country of ref document: DE

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: 20151014

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: 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: 20151014

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: 20151014

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: 20151014

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: 20151014

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: 20151014

26N No opposition filed

Effective date: 20160715

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: 20151014

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151014

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: 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: 20151014

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: 20160731

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160731

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160713

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160713

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: 20151014

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: 20120713

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: 20151014

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: 20151014

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160731

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20151014

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20151014

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602012011483

Country of ref document: DE

Owner name: PITTWAY SARL, CH

Free format text: FORMER OWNER: HONEYWELL TECHNOLOGIES SARL, ROLLE, CH

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20220505 AND 20220512

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: GB

Payment date: 20230725

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230725

Year of fee payment: 12

Ref country code: DE

Payment date: 20230828

Year of fee payment: 12