GB1436088A - Control and monitoring devices for oil and gas burners - Google Patents

Control and monitoring devices for oil and gas burners

Info

Publication number
GB1436088A
GB1436088A GB3827074A GB3827074A GB1436088A GB 1436088 A GB1436088 A GB 1436088A GB 3827074 A GB3827074 A GB 3827074A GB 3827074 A GB3827074 A GB 3827074A GB 1436088 A GB1436088 A GB 1436088A
Authority
GB
United Kingdom
Prior art keywords
relay
contact
ignition device
armature
closed
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
Application number
GB3827074A
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.)
Siemens Building Technologies AG
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
LGZ Landis and Gyr Zug AG
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 Landis and Gyr AG, LGZ Landis and Gyr Zug AG filed Critical Landis and Gyr AG
Publication of GB1436088A publication Critical patent/GB1436088A/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
    • F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
    • F23N5/206—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays 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
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
    • F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means

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

1436088 Burner control LGZ LANDIS & GYR ZUG AG 2 Sept 1974 [7 Sept 1973] 38270/74 Heading F4T A control and monitoring device for oil or gas burners, comprises a three-member switch 14, 16, 17, for cutting in and out a fuel valve 18 and ignition device 15, a bimetallic relay 4 which closes the contacts 16, 17, for valve 18 after a time delay, and a flame relay 3 which holds the contacts closed, by a pawl 6 after de-energization of relay 4, and opens the contact 14 to which the ignition device and a parallel heating winding 10 of relay 4 are connected, wherein a restraining device 28, 29, is arranged between the armature 20 of relay 3 and an actuating member 7 of relay 3, which device temporarily prevents the armature from being pulled up so that the contact which switches the ignition device and heating winding opens with a delay. In operation, a temperature regulator 20 is closed and current flows to a burner motor 21 via the fixed contact of a switch 8, and to an amplifier 2 and a contact 16. Motor 21 drives a blower which pre-ventilates the burner combustion chamber. Current is supplied to winding 10 of relay 4 and to ignition device 15 via contacts 16, 14, which are closed. Bimetallic element 11 is heated and deflected in the direction of arrow 12, and moves member 7 to entrain a spring 13. If, after a time delay the spring moves over its dead centre, contact 14, together with contact 16, trips over to contact 17, and fuel valve 18 receives voltage so as to supply fuel to the burner. A spark from ignition device 15 ignites the air-fuel mixture, and a light sensor responds to the flame and switches relay 3 by way of amplifier 2. Due to member 29 lying above member 28 armature 26 of relay 3 is prevented from being attracted, until due to further heating, element 11 is further deflected. When the armature is pulled-in, pawl 6 engages member 5 and pulls contact 16 towards relay 3 and breaks the connection with contact 14. Heading winding 10, and ignition device 15, are cut out, and element 11 cools down and returns to its starting position with pawl mechanism 5, 6, holding contacts 16, 17, closed. The interval between production of the flame, and cutting out of ignition device 15, is the post-ignition time.
GB3827074A 1973-09-07 1974-09-02 Control and monitoring devices for oil and gas burners Expired GB1436088A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1287073A CH562994A5 (en) 1973-09-07 1973-09-07

Publications (1)

Publication Number Publication Date
GB1436088A true GB1436088A (en) 1976-05-19

Family

ID=4387161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3827074A Expired GB1436088A (en) 1973-09-07 1974-09-02 Control and monitoring devices for oil and gas burners

Country Status (6)

Country Link
CH (1) CH562994A5 (en)
DK (1) DK136789B (en)
FR (1) FR2243393B1 (en)
GB (1) GB1436088A (en)
IT (1) IT1033092B (en)
SE (1) SE389904B (en)

Also Published As

Publication number Publication date
FR2243393B1 (en) 1978-04-28
CH562994A5 (en) 1975-06-13
DE2354310A1 (en) 1975-03-27
SE389904B (en) 1976-11-22
DK473474A (en) 1975-05-05
FR2243393A1 (en) 1975-04-04
SE7410939L (en) 1975-03-10
DK136789B (en) 1977-11-21
IT1033092B (en) 1979-07-10
DE2354310B2 (en) 1975-07-10
DK136789C (en) 1978-05-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee