ATE27732T1 - SAFETY CIRCUIT FOR A SYSTEM. - Google Patents

SAFETY CIRCUIT FOR A SYSTEM.

Info

Publication number
ATE27732T1
ATE27732T1 AT83201384T AT83201384T ATE27732T1 AT E27732 T1 ATE27732 T1 AT E27732T1 AT 83201384 T AT83201384 T AT 83201384T AT 83201384 T AT83201384 T AT 83201384T AT E27732 T1 ATE27732 T1 AT E27732T1
Authority
AT
Austria
Prior art keywords
relay
control relay
control
auxiliary
capacitor
Prior art date
Application number
AT83201384T
Other languages
German (de)
Inventor
Cornelis Arend Vreugdenhil
Original Assignee
Veg Gasinstituut Nv
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19840333&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE27732(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Veg Gasinstituut Nv filed Critical Veg Gasinstituut Nv
Application granted granted Critical
Publication of ATE27732T1 publication Critical patent/ATE27732T1/en

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
    • F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
    • F23N5/203—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays 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
    • F23N2227/28—Ignition circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/06—Fail safe for flame failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/12—Fail safe for ignition failures
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Relay Circuits (AREA)
  • Safety Devices In Control Systems (AREA)
  • Control Of Combustion (AREA)

Abstract

The invention relates to a circuit for fail safe control of a system comprising a command switch, closing of which activates a control relay so that through the switched over contacts of said control relay a holding path for said control relay is closed. The circuit furthermore comprises an auxiliary relay and a capacitor, which capacitor after closing of the command switch only through at least a normally closed contact of the control relay can be charged to a predetermined voltage before the control relay is energized. Said control relay is energized through an energizing path containing at least one contact of the auxiliary relay offering the possibility to check a switching device, and is maintained in the energized state through a contact of the control relay. The capacitor is after energizing of the control relay connected to the auxiliary relay through at least one of the now switched over contacts of said control relay and forms during a predetermined period the only voltage source for said auxiliary relay, energizing said auxiliary relay.
AT83201384T 1982-09-27 1983-09-27 SAFETY CIRCUIT FOR A SYSTEM. ATE27732T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8203734A NL8203734A (en) 1982-09-27 1982-09-27 DEVICE FOR DRIVING A BURNER.
EP83201384A EP0109696B1 (en) 1982-09-27 1983-09-27 Circuit for fail safe control of a system

Publications (1)

Publication Number Publication Date
ATE27732T1 true ATE27732T1 (en) 1987-06-15

Family

ID=19840333

Family Applications (1)

Application Number Title Priority Date Filing Date
AT83201384T ATE27732T1 (en) 1982-09-27 1983-09-27 SAFETY CIRCUIT FOR A SYSTEM.

Country Status (4)

Country Link
EP (1) EP0109696B1 (en)
AT (1) ATE27732T1 (en)
DE (1) DE3372011D1 (en)
NL (1) NL8203734A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3886894D1 (en) * 1987-10-27 1994-02-17 Vaillant Joh Gmbh & Co Burner control.
GB9021214D0 (en) * 1990-09-28 1990-11-14 Black Automatic Controls Limit Control circuit
NL1010618C2 (en) * 1998-11-20 2000-05-26 Ten Holter Consultancy Switching of emergency power supply to pick up priority loads when primary power fails

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999933A (en) * 1974-03-15 1976-12-28 Forney Engineering Company Burner control system
US4035134A (en) 1975-10-14 1977-07-12 Johnson Controls, Inc. Electronic valve seat leak detector
US4116613A (en) * 1977-01-24 1978-09-26 Johnson Controls, Inc. Direct ignition system with interlock protection
FR2414686A1 (en) 1978-01-11 1979-08-10 Cafap Sa Automatic burner control circuit - has flame detector with electrode connected to rectifier circuit whose output operates valve
US4194875A (en) * 1978-01-17 1980-03-25 Cam-Stat Incorporated Intermittent pilot ignition system
US4242079A (en) 1978-12-07 1980-12-30 Johnson Controls, Inc. Fuel ignition control system

Also Published As

Publication number Publication date
EP0109696A1 (en) 1984-05-30
EP0109696B1 (en) 1987-06-10
DE3372011D1 (en) 1987-07-16
NL8203734A (en) 1984-04-16

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee