GB1475639A - Safety timing circuits for burner control devices - Google Patents

Safety timing circuits for burner control devices

Info

Publication number
GB1475639A
GB1475639A GB1879175A GB1879175A GB1475639A GB 1475639 A GB1475639 A GB 1475639A GB 1879175 A GB1879175 A GB 1879175A GB 1879175 A GB1879175 A GB 1879175A GB 1475639 A GB1475639 A GB 1475639A
Authority
GB
United Kingdom
Prior art keywords
switch
capacitor
circuit
testing
input
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
GB1879175A
Other languages
English (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.)
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 GB1475639A publication Critical patent/GB1475639A/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
    • F23N5/242—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
    • F23N2227/00—Ignition or checking
    • F23N2227/12—Burner simulation or checking
    • F23N2227/14—Flame simulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/18—Applying test signals, e.g. periodic

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)
  • Control Of Combustion (AREA)
GB1879175A 1974-05-09 1975-05-05 Safety timing circuits for burner control devices Expired GB1475639A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH638074A CH571195A5 (enrdf_load_stackoverflow) 1974-05-09 1974-05-09

Publications (1)

Publication Number Publication Date
GB1475639A true GB1475639A (en) 1977-06-01

Family

ID=4308664

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1879175A Expired GB1475639A (en) 1974-05-09 1975-05-05 Safety timing circuits for burner control devices

Country Status (2)

Country Link
CH (1) CH571195A5 (enrdf_load_stackoverflow)
GB (1) GB1475639A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE2431575A1 (de) 1976-02-26
DE2431575B2 (de) 1976-06-16
CH571195A5 (enrdf_load_stackoverflow) 1975-12-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee