JPS5776219A - Device for returning blow-by gas - Google Patents

Device for returning blow-by gas

Info

Publication number
JPS5776219A
JPS5776219A JP15165180A JP15165180A JPS5776219A JP S5776219 A JPS5776219 A JP S5776219A JP 15165180 A JP15165180 A JP 15165180A JP 15165180 A JP15165180 A JP 15165180A JP S5776219 A JPS5776219 A JP S5776219A
Authority
JP
Japan
Prior art keywords
needle
blow
gas
flow control
intake pipe
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
JP15165180A
Other languages
Japanese (ja)
Inventor
Kazusato Kasuya
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.)
Aisan Industry Co Ltd
Original Assignee
Aisan Industry 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 Aisan Industry Co Ltd filed Critical Aisan Industry Co Ltd
Priority to JP15165180A priority Critical patent/JPS5776219A/en
Publication of JPS5776219A publication Critical patent/JPS5776219A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

PURPOSE:To obtain optimum air-fuel ratio over a wide operating range for a device to return blow-by gas out of the crankcase into the intake pipe through a flow control valve by providing an auxiliary fuel line on upstream side of a blow-by gas passage of the flow control valve mentioned above. CONSTITUTION:A bypass passage 2 is provided in a carburetor 1 and its upstream end is connected to the crankcase, while its another end opens just below the throttle valve 3 in the intake pipe 18. A narrowed throat 4 is provided inside the bypass passage 2, and an orifice of a nozzle 5 is located on this throat, extended from the float chamber 8 through an auxiliary fuel line 6 and a fuel throat 7 in the line. A metering needle 12 and a valve seat 13 are provided downstream in the bypass passage 2 with the needle 12 forced upstream with a spring 14, so that these parts form the flow control valve 17. When starting engine, pressure difference between the upside and underside of the needle 12 opens the needle valve 12 to supply fuel through the auxiliary fuel line 6 into the intake pipe 18 together with blow-by gas.
JP15165180A 1980-10-29 1980-10-29 Device for returning blow-by gas Pending JPS5776219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15165180A JPS5776219A (en) 1980-10-29 1980-10-29 Device for returning blow-by gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15165180A JPS5776219A (en) 1980-10-29 1980-10-29 Device for returning blow-by gas

Publications (1)

Publication Number Publication Date
JPS5776219A true JPS5776219A (en) 1982-05-13

Family

ID=15523223

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15165180A Pending JPS5776219A (en) 1980-10-29 1980-10-29 Device for returning blow-by gas

Country Status (1)

Country Link
JP (1) JPS5776219A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164412U (en) * 1985-04-02 1986-10-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164412U (en) * 1985-04-02 1986-10-13

Similar Documents

Publication Publication Date Title
US4387695A (en) Fuel injection apparatus
GB816427A (en) Improvements in or relating to fuel injection systems for internal combustion engines
US2905455A (en) Fuel supply
US4348338A (en) Injection-type pressure-freed carburetor
US4044080A (en) Carburetor
GB993825A (en) Improvements in carburetting devices for internal combustion engines
US4470391A (en) Air-fuel mixture intake construction for internal combustion engines
JPS5627058A (en) Exhaust gas recycling controller in internal combustion engine
US4038957A (en) Fuel control system for use in internal combustion engine
JPS5776219A (en) Device for returning blow-by gas
JPS5710764A (en) Mixed gas supply device for combustion engine equipped with electronically controlled injector
JPS555473A (en) Air-fuel ratio controller
ES452805A1 (en) Carburation devices for internal combustion engines
US4329966A (en) Controlled pollution control valve by-pass device for carbureted internal combustion engine
GB1298721A (en) Improvements in or relating to carburettors for internal combustion engines
JPS57176334A (en) Internal combustion engine
GB1332813A (en) Carburettors for internal combustion engines
JPS57137618A (en) Intake device of internal combustion engine
JPS5797064A (en) Fuel injection unit for internal combustion engine
JPS57102517A (en) Intake device for internal combustion engine
JPS56110518A (en) Suction device of internal combustion engine
JPS57210144A (en) Carburetor
US3492981A (en) Charge forming system for port injection internal combustion engine
JPS5710765A (en) Mixed gas supply device for combustion engine equipped with electronically controlled injector
SU1638346A2 (en) Carburetor to internal combustion engine