JPS57102514A - Two-cycle engine - Google Patents

Two-cycle engine

Info

Publication number
JPS57102514A
JPS57102514A JP17622180A JP17622180A JPS57102514A JP S57102514 A JPS57102514 A JP S57102514A JP 17622180 A JP17622180 A JP 17622180A JP 17622180 A JP17622180 A JP 17622180A JP S57102514 A JPS57102514 A JP S57102514A
Authority
JP
Japan
Prior art keywords
accessory
combustion chamber
crankcase
opened
exhaust 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.)
Pending
Application number
JP17622180A
Other languages
Japanese (ja)
Inventor
Hiromitsu Matsumoto
Yuzo Kuroda
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 JP17622180A priority Critical patent/JPS57102514A/en
Publication of JPS57102514A publication Critical patent/JPS57102514A/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
    • 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

Abstract

PURPOSE: To improve combustion and reduce fuel consumption, by connecting an accessory combustion chamber to a main combustion chamber and to a crankcase through an accessory scavenging passage and providing an accessory intake valve for introducing the fresh mixture in the crankcase into the accessory combustion chamber.
CONSTITUTION: An exhaust port 6 and a scavenging port 10, which are opened and closed by a piston 11, are provided on the inside surface of a cylinder 1. An accessory combustion chamber 20 communicates with a main combustion chamber 17. A spark plug 22 is located in the accessory combustion chamber 20. The accessory combustion chamber communicates with a crankcase 9 through an accessory scavenging passage 28. Before the exhaust port 6 is opened, an accessory intake valve 29 is opened by a cam so that the fresh mixture in the crankcase 9 is introduced into the accessory combustion chamber 20 through an accessory intake port 31. As a result, the combustion gas in the main combustion chamber 17 is scavenged toward the exhaust port 6 to attain good combustion.
COPYRIGHT: (C)1982,JPO&Japio
JP17622180A 1980-12-13 1980-12-13 Two-cycle engine Pending JPS57102514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17622180A JPS57102514A (en) 1980-12-13 1980-12-13 Two-cycle engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17622180A JPS57102514A (en) 1980-12-13 1980-12-13 Two-cycle engine

Publications (1)

Publication Number Publication Date
JPS57102514A true JPS57102514A (en) 1982-06-25

Family

ID=16009737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17622180A Pending JPS57102514A (en) 1980-12-13 1980-12-13 Two-cycle engine

Country Status (1)

Country Link
JP (1) JPS57102514A (en)

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