JPS6415418A - Positive crankcase ventilation for engine - Google Patents

Positive crankcase ventilation for engine

Info

Publication number
JPS6415418A
JPS6415418A JP16940687A JP16940687A JPS6415418A JP S6415418 A JPS6415418 A JP S6415418A JP 16940687 A JP16940687 A JP 16940687A JP 16940687 A JP16940687 A JP 16940687A JP S6415418 A JPS6415418 A JP S6415418A
Authority
JP
Japan
Prior art keywords
passage
blow
gas
crankcase
engine
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
JP16940687A
Other languages
Japanese (ja)
Inventor
Teruo Otoshi
Koji Endo
Taisuke Okazaki
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.)
Mazda Motor Corp
Original Assignee
Mazda 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 Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP16940687A priority Critical patent/JPS6415418A/en
Publication of JPS6415418A publication Critical patent/JPS6415418A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To stop the restoration of blow-by gas as well as to eliminate the promotion of overrichness in an air-fuel ratio by closing the cutoff device installed in a blow-by gas passage interconnecting a crankcase and a suction passage through when a fact that an engine is started was judged. CONSTITUTION:A suction passage 1 at the downstream of a throttle valve 2 and a cylinder head cover chamber 17a of a first bank A both are interconnected to each other by a first passage 19a. And, in this first passage 19a, there is provided with a cutoff valve 21. In addition, the cylinder head cover chamber 17a of the first bank A and a crankcase 18 both are interconnected to each other by a second passage 19b. And, blow-by gas inside the crankcase 18 is restored to the suction passage 1 through these first and second passages 19a and 19b. On the other hand, each signal out of a starter switch 25 and an engine speed sensor 26 is inputted into a controller 24. With this constitution, at time of enging starting, the cutoff 21 is closed and simultaneously restoration of the blow-by gas is stopped.
JP16940687A 1987-07-07 1987-07-07 Positive crankcase ventilation for engine Pending JPS6415418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16940687A JPS6415418A (en) 1987-07-07 1987-07-07 Positive crankcase ventilation for engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16940687A JPS6415418A (en) 1987-07-07 1987-07-07 Positive crankcase ventilation for engine

Publications (1)

Publication Number Publication Date
JPS6415418A true JPS6415418A (en) 1989-01-19

Family

ID=15886009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16940687A Pending JPS6415418A (en) 1987-07-07 1987-07-07 Positive crankcase ventilation for engine

Country Status (1)

Country Link
JP (1) JPS6415418A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04191439A (en) * 1990-11-22 1992-07-09 Japan Electron Control Syst Co Ltd Fuel leak diagnostic device for electronic control fuel injection type internal combustion engine
JP2004332585A (en) * 2003-05-02 2004-11-25 Nissan Motor Co Ltd Engine control device
KR100482098B1 (en) * 2002-08-08 2005-04-13 현대자동차주식회사 a device for a prevention of Blow-by gas an inflow at engine off
JP2006250079A (en) * 2005-03-11 2006-09-21 Toyota Motor Corp Crankcase emission control system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04191439A (en) * 1990-11-22 1992-07-09 Japan Electron Control Syst Co Ltd Fuel leak diagnostic device for electronic control fuel injection type internal combustion engine
KR100482098B1 (en) * 2002-08-08 2005-04-13 현대자동차주식회사 a device for a prevention of Blow-by gas an inflow at engine off
JP2004332585A (en) * 2003-05-02 2004-11-25 Nissan Motor Co Ltd Engine control device
JP2006250079A (en) * 2005-03-11 2006-09-21 Toyota Motor Corp Crankcase emission control system

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