ES197257U - Security control circuit for fuel burners. (Machine-translation by Google Translate, not legally binding) - Google Patents

Security control circuit for fuel burners. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES197257U
ES197257U ES0197257U ES197257U ES197257U ES 197257 U ES197257 U ES 197257U ES 0197257 U ES0197257 U ES 0197257U ES 197257 U ES197257 U ES 197257U ES 197257 U ES197257 U ES 197257U
Authority
ES
Spain
Prior art keywords
time delay
switch
valve
relay
burner
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
ES0197257U
Other languages
Spanish (es)
Other versions
ES197257Y (en
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.)
Combustion Engineering Inc
Original Assignee
Combustion Engineering Inc
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 Combustion Engineering Inc filed Critical Combustion Engineering Inc
Publication of ES197257U publication Critical patent/ES197257U/en
Application granted granted Critical
Publication of ES197257Y publication Critical patent/ES197257Y/en
Expired 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
    • F23N5/245—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electrical or electromechanical means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/24—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
    • H02H3/247—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage having timing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/04—Fail safe for electrical power failures

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)

Abstract

Safety control circuit for fuel burners; that operate in order to be able to distinguish between power interruptions and emergency operating conditions that require the closing of a safety shut-off valve of the burner, characterized in that it comprises the safety control circuit, a shut-off valve of safety of the burner that is de-energized to disconnect, a source of energy through the safety shut-off valve of the burner to energize said valve, a circuit of time delay in relation in parallel with respect to the safety shut-off valve of the burner the time delay circuit having a time delay unit and a first and second switch in series with each other; a first time delay relay that is functionally associated with the first switch to keep the switch closed for a certain period of time during de-energization of the relay; a second time delay relay that is functionally associated with the second switch to keep the switch closed for a certain period of time during the energization of the relay, the determined period of the second switch being much smaller than the period determined by the first switch and means connected to the power source for controlling the energizing state of the first and second time delay relays, so that both time delay relays de-energize during the power interruption by de-energizing during a time delay. Emergency condition the first time delay relay while energizing the second time delay relays. (Machine-translation by Google Translate, not legally binding)
ES1971197257U 1970-06-11 1971-05-31 SAFETY CONTROL CIRCUIT FOR COMBUS-TIBLE BURNERS. Expired ES197257Y (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4536970A 1970-06-11 1970-06-11

Publications (2)

Publication Number Publication Date
ES197257U true ES197257U (en) 1975-04-01
ES197257Y ES197257Y (en) 1975-09-01

Family

ID=21937494

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1971197257U Expired ES197257Y (en) 1970-06-11 1971-05-31 SAFETY CONTROL CIRCUIT FOR COMBUS-TIBLE BURNERS.

Country Status (6)

Country Link
US (1) US3619724A (en)
JP (1) JPS5323540B1 (en)
CA (1) CA934466A (en)
ES (1) ES197257Y (en)
GB (1) GB1345021A (en)
ZA (1) ZA713755B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1089054A (en) * 1976-08-20 1980-11-04 William F. Helwig, Jr. Delay circuit
DE2815780C2 (en) * 1978-04-12 1986-10-23 Robert Bosch Gmbh, 7000 Stuttgart Safety device for controlling switching means in the supply line of electrical consumers in connection with a fuel metering system in an internal combustion engine
US4992040A (en) * 1990-03-19 1991-02-12 Honeywell Inc. Airflow switch checking circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3254871A (en) * 1963-10-31 1966-06-07 Auto Tronic Control Co Inc Time delay system
US3275058A (en) * 1963-11-27 1966-09-27 D G Controls Inc Oil burner control systems

Also Published As

Publication number Publication date
US3619724A (en) 1971-11-09
JPS5323540B1 (en) 1978-07-15
ES197257Y (en) 1975-09-01
GB1345021A (en) 1974-01-30
CA934466A (en) 1973-09-25
ZA713755B (en) 1972-04-26

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