JPS5726276A - Preheat controller of diesel engine - Google Patents

Preheat controller of diesel engine

Info

Publication number
JPS5726276A
JPS5726276A JP10167080A JP10167080A JPS5726276A JP S5726276 A JPS5726276 A JP S5726276A JP 10167080 A JP10167080 A JP 10167080A JP 10167080 A JP10167080 A JP 10167080A JP S5726276 A JPS5726276 A JP S5726276A
Authority
JP
Japan
Prior art keywords
disconnection
plugs
level
temperature
activating
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
JP10167080A
Other languages
Japanese (ja)
Other versions
JPS6253715B2 (en
Inventor
Osamu Yamamiya
Hitaka Tsukasaki
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.)
Denso Corp
Original Assignee
NipponDenso Co Ltd
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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP10167080A priority Critical patent/JPS5726276A/en
Publication of JPS5726276A publication Critical patent/JPS5726276A/en
Publication of JPS6253715B2 publication Critical patent/JPS6253715B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
    • F02P19/027—Safety devices, e.g. for diagnosing the glow plugs or the related circuits
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To bring up remaining breakage-free plugs to an optimum temperature in response to a disconnection occurred to one of glow plugs, by automatically adjusting comparator's criterion level in compliance with the number of flowless plugs, and provide a disconnection indicating alarm at the same time. CONSTITUTION:When a switch 2 is switched on, a relay 8 becomes also on, and a disconnection detector circuit 26 performs activity by means of the output voltage inclination given by an amplifier 12. If a disconnection is noticed, the output 27 reaches L level activating a transistor 29. A resistance 31 then brings up the reverse input level of a comparator 14. Consequently, even when one of the plugs is broken, the main current supply is cut off after the remaining three plugs reach a temperature of about 900 deg.C. With resistances 31 and 15 connected parallel, however, current change-over from subsidiary to main is controlled relative to temperature within the range of about 650 deg.C and about 900 deg.C. In addition, when the disconnection detector circuit 36 detects a disconnection, an output terminal 28 reaches H level. Activating a transister 32 and lighting a disconnection indicating lamp 34 to inform the operator of the disconnection.
JP10167080A 1980-07-24 1980-07-24 Preheat controller of diesel engine Granted JPS5726276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10167080A JPS5726276A (en) 1980-07-24 1980-07-24 Preheat controller of diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10167080A JPS5726276A (en) 1980-07-24 1980-07-24 Preheat controller of diesel engine

Publications (2)

Publication Number Publication Date
JPS5726276A true JPS5726276A (en) 1982-02-12
JPS6253715B2 JPS6253715B2 (en) 1987-11-11

Family

ID=14306796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10167080A Granted JPS5726276A (en) 1980-07-24 1980-07-24 Preheat controller of diesel engine

Country Status (1)

Country Link
JP (1) JPS5726276A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58113581A (en) * 1981-12-28 1983-07-06 Isuzu Motors Ltd Discontinuity sensing device for preheated plug
JPS58113580A (en) * 1981-12-28 1983-07-06 Isuzu Motors Ltd Control device for heating of preheated plug

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58113581A (en) * 1981-12-28 1983-07-06 Isuzu Motors Ltd Discontinuity sensing device for preheated plug
JPS58113580A (en) * 1981-12-28 1983-07-06 Isuzu Motors Ltd Control device for heating of preheated plug
JPH0135186B2 (en) * 1981-12-28 1989-07-24 Isuzu Jidosha Kk
JPH0135187B2 (en) * 1981-12-28 1989-07-24 Isuzu Jidosha Kk

Also Published As

Publication number Publication date
JPS6253715B2 (en) 1987-11-11

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