JPS5713225A - Intake system of 2-stroke engine - Google Patents

Intake system of 2-stroke engine

Info

Publication number
JPS5713225A
JPS5713225A JP8830080A JP8830080A JPS5713225A JP S5713225 A JPS5713225 A JP S5713225A JP 8830080 A JP8830080 A JP 8830080A JP 8830080 A JP8830080 A JP 8830080A JP S5713225 A JPS5713225 A JP S5713225A
Authority
JP
Japan
Prior art keywords
carburetor
air
empty chamber
chamber
intake
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
JP8830080A
Other languages
Japanese (ja)
Other versions
JPS6349052B2 (en
Inventor
Noritaka Matsuo
Koichiro Takeuchi
Tokuji Muramatsu
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP8830080A priority Critical patent/JPS5713225A/en
Priority to KR1019810000924A priority patent/KR830005471A/en
Priority to BR8104114A priority patent/BR8104114A/en
Publication of JPS5713225A publication Critical patent/JPS5713225A/en
Publication of JPS6349052B2 publication Critical patent/JPS6349052B2/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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • 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
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Characterised By The Charging Evacuation (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

PURPOSE: To stabilize the air-fuel ratio by providing an empty chamber to close off the outer end of a branching tube which branches off from an intake passage between a throttle valve and an intake valve interlocked to the rotation of a cranckshaft.
CONSTITUTION: A branching pipe 23 is provided on an intake passage 13 between a carburetor 18 and an intake valve 22 interlocked to the rotation of a crankshaft 14, an empty chamber 24 being formed at the outer end of said branching pipe 23, the size of said chamber 24 being determined to have both the branching pipe 23 and the chamber 24 resonate with the particular frequency of the pressure fluctuation in the passage 13. When the flow of the air-cuel mixture from the carburetor 18 and the empty chamber 24 to a crankcase 11 is shut off by the intake valve 22, the air-fuel mixture from the carburetor 18 is filled into the down-stream side of a throttle valve 21 and the empty chamber 24 due to the intake negative pressure at the downstream side of throttle valve 21. The air-fuel mixture is rapidly introduced in the crankcase from the carburetor 18 and the empty chamber 24, and the air-fuel ratio of the carburetor 18 is stabilized by the alternate flow of the mixture from the carburetor 18 to the crankcase 11 and to the empty chamber 24.
COPYRIGHT: (C)1982,JPO&Japio
JP8830080A 1980-06-28 1980-06-28 Intake system of 2-stroke engine Granted JPS5713225A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8830080A JPS5713225A (en) 1980-06-28 1980-06-28 Intake system of 2-stroke engine
KR1019810000924A KR830005471A (en) 1980-06-28 1981-03-20 Intake system of two-stroke engine
BR8104114A BR8104114A (en) 1980-06-28 1981-06-29 ADMISSION SYSTEM FOR A TWO-TIME INTERNAL COMBUSTION ENGINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8830080A JPS5713225A (en) 1980-06-28 1980-06-28 Intake system of 2-stroke engine

Publications (2)

Publication Number Publication Date
JPS5713225A true JPS5713225A (en) 1982-01-23
JPS6349052B2 JPS6349052B2 (en) 1988-10-03

Family

ID=13939069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8830080A Granted JPS5713225A (en) 1980-06-28 1980-06-28 Intake system of 2-stroke engine

Country Status (3)

Country Link
JP (1) JPS5713225A (en)
KR (1) KR830005471A (en)
BR (1) BR8104114A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6161912A (en) * 1984-09-01 1986-03-29 Yamaha Motor Co Ltd Air intake control device of engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5417418A (en) * 1977-07-08 1979-02-08 Kawasaki Heavy Ind Ltd Air intake system of two-cylinder two-cycle engine
JPS631445A (en) * 1986-06-20 1988-01-06 Mitsubishi Heavy Ind Ltd Apparatus for preparing hyperfine particle by gaseous phase reaction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5417418A (en) * 1977-07-08 1979-02-08 Kawasaki Heavy Ind Ltd Air intake system of two-cylinder two-cycle engine
JPS631445A (en) * 1986-06-20 1988-01-06 Mitsubishi Heavy Ind Ltd Apparatus for preparing hyperfine particle by gaseous phase reaction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6161912A (en) * 1984-09-01 1986-03-29 Yamaha Motor Co Ltd Air intake control device of engine

Also Published As

Publication number Publication date
BR8104114A (en) 1982-03-16
KR830005471A (en) 1983-08-13
JPS6349052B2 (en) 1988-10-03

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