JPS56167856A - Ignition delay time measuring system for diesel engine - Google Patents

Ignition delay time measuring system for diesel engine

Info

Publication number
JPS56167856A
JPS56167856A JP7176580A JP7176580A JPS56167856A JP S56167856 A JPS56167856 A JP S56167856A JP 7176580 A JP7176580 A JP 7176580A JP 7176580 A JP7176580 A JP 7176580A JP S56167856 A JPS56167856 A JP S56167856A
Authority
JP
Japan
Prior art keywords
signal
detected
detector
fuel injection
amplifier
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
JP7176580A
Other languages
Japanese (ja)
Inventor
Eisaku Yamada
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP7176580A priority Critical patent/JPS56167856A/en
Publication of JPS56167856A publication Critical patent/JPS56167856A/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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • F02D41/401—Controlling injection timing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/0007—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for using electrical feedback
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

PURPOSE:To make it possible to detect an ignition time delay without disassembling the diesel engine by a method wherein a fuel injection point and a fuel explosion point are detected from the distortion of a fuel injection pipe and from the mechanical vibratory acceleration of the engine body. CONSTITUTION:The expansion of the fuel injection pipe varying with fuel injection is detected by a detector 1 such as a distortion gauge pick up and the signal from the detector 1 is applied on a comparator 6 through an amplifier 3 where it is compared with a predetermined voltage Vo. Thus, when the detected signal is higher than the voltage Vo, a set signal is outputted to FF7. The FF7 generates an output in synchronism with the rise of the set signal so that an AND circuit 8 is operated and the pulse from a clock pulse generator 9 is applied on a counter 10. At the same time, the mechanical vibratory acceleration of the engine body is detected by a detector 2 such as a vibratory acceleration pick up. The detected signal from the detector 2 is received by FF7 as a reset signal through the amplifier 4. The AND circuit 8 is held inoperative through the resetting of the FF7 and the counting by the counter 10 is stopped. Further, the signal from the amplifier 4 is applied on a latch circuit 11 to latch the value of counting by the counter 10 so that the ignition delay time is displayed on a display 12.
JP7176580A 1980-05-29 1980-05-29 Ignition delay time measuring system for diesel engine Pending JPS56167856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7176580A JPS56167856A (en) 1980-05-29 1980-05-29 Ignition delay time measuring system for diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7176580A JPS56167856A (en) 1980-05-29 1980-05-29 Ignition delay time measuring system for diesel engine

Publications (1)

Publication Number Publication Date
JPS56167856A true JPS56167856A (en) 1981-12-23

Family

ID=13469959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7176580A Pending JPS56167856A (en) 1980-05-29 1980-05-29 Ignition delay time measuring system for diesel engine

Country Status (1)

Country Link
JP (1) JPS56167856A (en)

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