JPS5720560A - Spark advancement controller for supercharged engine - Google Patents

Spark advancement controller for supercharged engine

Info

Publication number
JPS5720560A
JPS5720560A JP9592780A JP9592780A JPS5720560A JP S5720560 A JPS5720560 A JP S5720560A JP 9592780 A JP9592780 A JP 9592780A JP 9592780 A JP9592780 A JP 9592780A JP S5720560 A JPS5720560 A JP S5720560A
Authority
JP
Japan
Prior art keywords
valve
positive pressure
pressure
spark advancement
port
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
JP9592780A
Other languages
Japanese (ja)
Other versions
JPS6234944B2 (en
Inventor
Yasuhiro Ikuta
Shigeru Sone
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor 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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP9592780A priority Critical patent/JPS5720560A/en
Publication of JPS5720560A publication Critical patent/JPS5720560A/en
Publication of JPS6234944B2 publication Critical patent/JPS6234944B2/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)
  • Supercharger (AREA)
  • Characterised By The Charging Evacuation (AREA)

Abstract

PURPOSE:To enable accurate control with no operation lag, by providing a by-pass valve between the output port of a spark advancement control valve and an intake pressure port, and to heighten reliability, by preventing the diaphragms of the control valve from returning. CONSTITUTION:When the rotational frequency of an engine is increased by opening a throttle valve 3, positive pressure is applied to the interior of an intake pipe 6 by the action of a turbo-fan 1 and the positive pressure in a surge tank 4 is applied to a cut valve 13 and a by-pass valve 17 and the positive pressure at an advance port 2 is applied to another cut valve 8. The diaphragm mechanisms of the valves 8, 13 are operated by the high pressure applied to input ports 9, 14 to shut off these ports and connect output ports 10, 15 to the atmosphere. As a result, no positive pressure is applied to the first and second chambers 38, 29 of a spark advancement control valve 11 so that diaphragm 37, 40 are actuated neither forward nor backward. The diaphragms 37, 40 are thus prevented by the valves 8, 13 from returning. When positive pressure is applied to the chamber 50 of the valve 17, the chamber 50 is connected to an output chamber 61 and a negative pressure port 22 is closed and the pressure in the tank 4 is transmitted to a spark advancement mechanism 20 to control spark advancement.
JP9592780A 1980-07-14 1980-07-14 Spark advancement controller for supercharged engine Granted JPS5720560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9592780A JPS5720560A (en) 1980-07-14 1980-07-14 Spark advancement controller for supercharged engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9592780A JPS5720560A (en) 1980-07-14 1980-07-14 Spark advancement controller for supercharged engine

Publications (2)

Publication Number Publication Date
JPS5720560A true JPS5720560A (en) 1982-02-03
JPS6234944B2 JPS6234944B2 (en) 1987-07-29

Family

ID=14150899

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9592780A Granted JPS5720560A (en) 1980-07-14 1980-07-14 Spark advancement controller for supercharged engine

Country Status (1)

Country Link
JP (1) JPS5720560A (en)

Also Published As

Publication number Publication date
JPS6234944B2 (en) 1987-07-29

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