JPS5647662A - Vacuum angle advancing device for distributer - Google Patents

Vacuum angle advancing device for distributer

Info

Publication number
JPS5647662A
JPS5647662A JP12321279A JP12321279A JPS5647662A JP S5647662 A JPS5647662 A JP S5647662A JP 12321279 A JP12321279 A JP 12321279A JP 12321279 A JP12321279 A JP 12321279A JP S5647662 A JPS5647662 A JP S5647662A
Authority
JP
Japan
Prior art keywords
negative pressure
angle
advancing device
distributer
vacuum
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
JP12321279A
Other languages
Japanese (ja)
Inventor
Yoshio Igai
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 Motors Corp
Original Assignee
Mitsubishi Motors 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 Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP12321279A priority Critical patent/JPS5647662A/en
Publication of JPS5647662A publication Critical patent/JPS5647662A/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
    • 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)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Abstract

PURPOSE:To prevent HC from unburning and improve idle fuel consumption by providing negative pressure input of a vacuum angle advancing device in two portions of a carbureter for making ignition angle advancement full one in idling. CONSTITUTION:A vacuum angle advancing device 1 in a distributer is controlled by negative pressure passing through an orifice 16 in the normal travelling. In idling or deceleration when a throttle valve 7 in an intake path 8 is closed, negative pressure for controlling a path 10 is greater than that for advancing angle. Thus, a check valve 17 is opened to communicate the control negative pressure to a negative pressure chamber of an angle advancing device 1 to make ignition angle advancement full one. Hence, unburnt HC is reduced, abnormal combustion in a catalyzer of exhaust system prevented and combustion and idle fuel consumption are improved by stability.
JP12321279A 1979-09-27 1979-09-27 Vacuum angle advancing device for distributer Pending JPS5647662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12321279A JPS5647662A (en) 1979-09-27 1979-09-27 Vacuum angle advancing device for distributer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12321279A JPS5647662A (en) 1979-09-27 1979-09-27 Vacuum angle advancing device for distributer

Publications (1)

Publication Number Publication Date
JPS5647662A true JPS5647662A (en) 1981-04-30

Family

ID=14854966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12321279A Pending JPS5647662A (en) 1979-09-27 1979-09-27 Vacuum angle advancing device for distributer

Country Status (1)

Country Link
JP (1) JPS5647662A (en)

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