JPS5490420A - Ignition timing control system for automotive engine - Google Patents

Ignition timing control system for automotive engine

Info

Publication number
JPS5490420A
JPS5490420A JP15919377A JP15919377A JPS5490420A JP S5490420 A JPS5490420 A JP S5490420A JP 15919377 A JP15919377 A JP 15919377A JP 15919377 A JP15919377 A JP 15919377A JP S5490420 A JPS5490420 A JP S5490420A
Authority
JP
Japan
Prior art keywords
chamber
engine
vacuum
automotive engine
manifold
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
JP15919377A
Other languages
Japanese (ja)
Other versions
JPS6147979B2 (en
Inventor
Minoru Yamanaka
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.)
Aisin Corp
Original Assignee
Aisin Seiki 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 Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP15919377A priority Critical patent/JPS5490420A/en
Publication of JPS5490420A publication Critical patent/JPS5490420A/en
Publication of JPS6147979B2 publication Critical patent/JPS6147979B2/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
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/05—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means
    • F02P5/10—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on fluid pressure in engine, e.g. combustion-air pressure
    • F02P5/103—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on fluid pressure in engine, e.g. combustion-air pressure dependent on the combustion-air pressure in engine

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

PURPOSE:To enable immediate response of ignition timing of an automotive engine to lag side particularly when the engine is abruptly accelerated from normally running state in a vacuum spark advancing system to improve the response characteristics of the engine at idling time. CONSTITUTION:When an automotive engine is abruptly accelerated from normally running state, large quantity of air is introduced into an intake manifold 20 with the result that both an advance port 12 and the manifold 20 become substantially the atmospheric pressure. The atmospheric air supplied from the port 12 is immediately introduced through a passage 71 into second chamber 61, but the atmospheric air supplied from the manifold 20 is gradually introduced through an orifice 40 into first chamber 60 resulting in residual vacuum in the chamber 60 for a while. Thus, a diaphragm piston 59 is downwardly displaced to cause a valve 67 to open a passage 63. Accordingly, the atmospheric air in the chamber 61 is introduced through third chamber 62 from an output port 54 into a vacuum advancer 31 so as to cut vacuum spark advance.
JP15919377A 1977-12-27 1977-12-27 Ignition timing control system for automotive engine Granted JPS5490420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15919377A JPS5490420A (en) 1977-12-27 1977-12-27 Ignition timing control system for automotive engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15919377A JPS5490420A (en) 1977-12-27 1977-12-27 Ignition timing control system for automotive engine

Publications (2)

Publication Number Publication Date
JPS5490420A true JPS5490420A (en) 1979-07-18
JPS6147979B2 JPS6147979B2 (en) 1986-10-22

Family

ID=15688340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15919377A Granted JPS5490420A (en) 1977-12-27 1977-12-27 Ignition timing control system for automotive engine

Country Status (1)

Country Link
JP (1) JPS5490420A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63199765U (en) * 1987-06-12 1988-12-22

Also Published As

Publication number Publication date
JPS6147979B2 (en) 1986-10-22

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