EP0803680A3 - Circuit and method for monitoring a fuel-heated apparatus - Google Patents

Circuit and method for monitoring a fuel-heated apparatus Download PDF

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Publication number
EP0803680A3
EP0803680A3 EP97105891A EP97105891A EP0803680A3 EP 0803680 A3 EP0803680 A3 EP 0803680A3 EP 97105891 A EP97105891 A EP 97105891A EP 97105891 A EP97105891 A EP 97105891A EP 0803680 A3 EP0803680 A3 EP 0803680A3
Authority
EP
European Patent Office
Prior art keywords
safety
fuel
monitoring
input signal
circuit
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
EP97105891A
Other languages
German (de)
French (fr)
Other versions
EP0803680B1 (en
EP0803680A2 (en
Inventor
Klaus Krieger
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0803680A2 publication Critical patent/EP0803680A2/en
Publication of EP0803680A3 publication Critical patent/EP0803680A3/en
Application granted granted Critical
Publication of EP0803680B1 publication Critical patent/EP0803680B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/12—Burner simulation or checking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/30—Representation of working time

Abstract

Die Erfindung betrifft eine Schaltungsanordnung zum Überwachen eines brennstoffbeheizten Gerätes mit einer Steuereinrichtung, der zumindest ein sicherheitsrelevantes Eingangssignal zugeführt ist, und einer Sicherheitseinrichtung, die eine Schaltvorrichtung zum Abschalten mindestens eines Ventils in einer Brennstoffzufuhr aufweist, wobei die Abschaltung abhängig von dem sicherheitsrelevanten Eingangssignal und/oder einem Prüfsignal der Steuereinrichtung erfolgt. Die Erfindung kennzeichnet sich dadurch aus, daß die Sicherheitseinrichtung (5) eine Zählvorrichtung (43) aufweist, die durch das sicherheitsrelevante Eingangssignal und/oder das Prüfsignal aktivierbar ist und bei Erreichen eines bestimmten Zählerstandes die Schaltvorrichtung (13,61) betätigt.

Figure 00000001
The invention relates to a circuit arrangement for monitoring a fuel-heated device with a control device which is supplied with at least one safety-relevant input signal and a safety device which has a switching device for switching off at least one valve in a fuel supply, the switch-off depending on the safety-relevant input signal and / or a test signal from the control device. The invention is characterized in that the safety device (5) has a counting device (43) which can be activated by the safety-relevant input signal and / or the test signal and which actuates the switching device (13, 61) when a certain counter reading is reached.
Figure 00000001
EP97105891A 1996-04-23 1997-04-10 Circuit and method for monitoring a fuel-heated apparatus Expired - Lifetime EP0803680B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19616065A DE19616065A1 (en) 1996-04-23 1996-04-23 Circuit arrangement for monitoring a fuel-heated device
DE19616065 1996-04-23

Publications (3)

Publication Number Publication Date
EP0803680A2 EP0803680A2 (en) 1997-10-29
EP0803680A3 true EP0803680A3 (en) 1999-07-21
EP0803680B1 EP0803680B1 (en) 2003-07-09

Family

ID=7792132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97105891A Expired - Lifetime EP0803680B1 (en) 1996-04-23 1997-04-10 Circuit and method for monitoring a fuel-heated apparatus

Country Status (2)

Country Link
EP (1) EP0803680B1 (en)
DE (2) DE19616065A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19825846A1 (en) 1998-06-10 1999-12-16 Agt Gas Technology Gmbh Device for securing a gas burning point
ES2155404B1 (en) * 1999-07-23 2001-12-01 Fagor S Coop CONTROL CIRCUIT FOR GAS HOBS WITH SAFETY SYSTEM BEFORE DOUBLE FAILURE.
DE10028989A1 (en) * 2000-06-16 2001-12-20 Siemens Building Tech Ag Input circuit for a burner
JP3419752B2 (en) * 2000-10-19 2003-06-23 アール・ビー・コントロールズ株式会社 Combustion control device
EP1571395A1 (en) * 2004-03-02 2005-09-07 Riello S.p.a. Burner flame control unit
DE102009036423C5 (en) * 2009-08-06 2023-03-02 Robert Bosch Gmbh Method and device for interrupting a fuel supply and use thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT329733B (en) * 1972-09-29 1976-05-25 Dold Otto SAFETY CIRCUIT FOR AUTOMATIC FIRE IN GAS AND OIL COMBUSTION SYSTEMS
US4695246A (en) * 1984-08-30 1987-09-22 Lennox Industries, Inc. Ignition control system for a gas appliance
EP0315053A1 (en) * 1987-11-06 1989-05-10 Joh. Vaillant GmbH u. Co. Burner automat
DE4038925A1 (en) * 1990-03-23 1991-09-26 Landis & Gyr Betriebs Ag Combustion controller for burner e.g. of industrial furnace - includes counter of attempts at flame reignition above temp. where safety regulations dispense with flame monitoring
DE4111947A1 (en) * 1991-04-12 1992-10-15 Bosch Gmbh Robert CIRCUIT ARRANGEMENT AND METHOD FOR MONITORING A FUEL-HEATED DEVICE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT329733B (en) * 1972-09-29 1976-05-25 Dold Otto SAFETY CIRCUIT FOR AUTOMATIC FIRE IN GAS AND OIL COMBUSTION SYSTEMS
US4695246A (en) * 1984-08-30 1987-09-22 Lennox Industries, Inc. Ignition control system for a gas appliance
EP0315053A1 (en) * 1987-11-06 1989-05-10 Joh. Vaillant GmbH u. Co. Burner automat
DE4038925A1 (en) * 1990-03-23 1991-09-26 Landis & Gyr Betriebs Ag Combustion controller for burner e.g. of industrial furnace - includes counter of attempts at flame reignition above temp. where safety regulations dispense with flame monitoring
DE4111947A1 (en) * 1991-04-12 1992-10-15 Bosch Gmbh Robert CIRCUIT ARRANGEMENT AND METHOD FOR MONITORING A FUEL-HEATED DEVICE

Also Published As

Publication number Publication date
EP0803680B1 (en) 2003-07-09
DE19616065A1 (en) 1997-11-06
EP0803680A2 (en) 1997-10-29
DE59710396D1 (en) 2003-08-14

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