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JPS5444114A - Exhaust-gas temperature watching apparatus - Google Patents

Exhaust-gas temperature watching apparatus

Info

Publication number
JPS5444114A
JPS5444114A JP11032077A JP11032077A JPS5444114A JP S5444114 A JPS5444114 A JP S5444114A JP 11032077 A JP11032077 A JP 11032077A JP 11032077 A JP11032077 A JP 11032077A JP S5444114 A JPS5444114 A JP S5444114A
Authority
JP
Japan
Prior art keywords
value
temperature
exhaust
gas
cylinders
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.)
Pending
Application number
JP11032077A
Other languages
Japanese (ja)
Inventor
Masakatsu Kido
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11032077A priority Critical patent/JPS5444114A/en
Publication of JPS5444114A publication Critical patent/JPS5444114A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/08—Safety, indicating, or supervising devices
    • F02B77/085—Safety, indicating, or supervising devices with sensors measuring combustion processes, e.g. knocking, pressure, ionization, combustion flame
    • F02B77/086—Sensor arrangements in the exhaust, e.g. for temperature, misfire, air/fuel ratio, oxygen sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

PURPOSE:To correctly detect abnormal combustion by calculating the permissible upper and lower limit temperatures of exhaut gas in all cylinders through the mean value of exhaust-gas temperatures in all cylinders and giving an alarm when the exhaust gas temperature of each cylinder is not within this temperature range. CONSTITUTION:Temperature measuring resistors 1-1-1-N detect the exhaust- gas temperature of each cylinder, and converters 2-1-2-N performs the conversion to electrical signal. A mean-value calculator 11 averages these electrical signals and calculates a mean value M. The value alpha set in the lower-limit setting apparatuses 13-1-13-N of respective cylinders is substrated, and the lower-limit value M-alpha is calculated. When the temperature of corresponding cylinder becomes lower than the lower-limit value, the calculation circuits 14-1-14-N give alarm signals. While, the value beta set in the upper limit setting apparatuses 15-1-15-N is added to the mean value M, and the upper limit value M+beta is calculated, and when the temperature of corresponding cylinder increases higher than the upper limit value, the calculation circuits 16-1-16-N give alarm signals. Thus, abnormal combustion can be detected correctly.
JP11032077A 1977-09-12 1977-09-12 Exhaust-gas temperature watching apparatus Pending JPS5444114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11032077A JPS5444114A (en) 1977-09-12 1977-09-12 Exhaust-gas temperature watching apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11032077A JPS5444114A (en) 1977-09-12 1977-09-12 Exhaust-gas temperature watching apparatus

Publications (1)

Publication Number Publication Date
JPS5444114A true JPS5444114A (en) 1979-04-07

Family

ID=14532725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11032077A Pending JPS5444114A (en) 1977-09-12 1977-09-12 Exhaust-gas temperature watching apparatus

Country Status (1)

Country Link
JP (1) JPS5444114A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63182244U (en) * 1987-05-18 1988-11-24

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493004A (en) * 1972-04-28 1974-01-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493004A (en) * 1972-04-28 1974-01-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63182244U (en) * 1987-05-18 1988-11-24

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