JPS5788253A - Shape of piston of two-cycle engine - Google Patents

Shape of piston of two-cycle engine

Info

Publication number
JPS5788253A
JPS5788253A JP16352880A JP16352880A JPS5788253A JP S5788253 A JPS5788253 A JP S5788253A JP 16352880 A JP16352880 A JP 16352880A JP 16352880 A JP16352880 A JP 16352880A JP S5788253 A JPS5788253 A JP S5788253A
Authority
JP
Japan
Prior art keywords
piston
parallel
crank web
piston pin
skirt
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
JP16352880A
Other languages
Japanese (ja)
Inventor
Hiroki Onodera
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 JP16352880A priority Critical patent/JPS5788253A/en
Publication of JPS5788253A publication Critical patent/JPS5788253A/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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/24—Pistons  having means for guiding gases in cylinders, e.g. for guiding scavenging charge in two-stroke engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/02—Bearing surfaces
    • 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 prevent the generation of slapping sound even in large-size mixed gas inlet port by using a structure in which the lower end portion of a skirt in parallel with a piston pin is extended to a place close to a crank web at the bottom dead center of the piston in such a way as to keep it along the periphery of the crank web. CONSTITUTION:In the skirt 48 of a piston 36, the lower ends 52 of side in parallel with the piston pin 42 is extended to a place close to a crank web 34 in such a way as to keep it along the periphery of the crank web 34. Since larger sliding face can be taken on both sides in parallel with the piston pin 42, sufficient sliding face can be formed on both sides in parallel with the piston pin 42 in the skirt 48 even when larger opening 50 is formed in order to increase the output of engine.
JP16352880A 1980-11-20 1980-11-20 Shape of piston of two-cycle engine Pending JPS5788253A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16352880A JPS5788253A (en) 1980-11-20 1980-11-20 Shape of piston of two-cycle engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16352880A JPS5788253A (en) 1980-11-20 1980-11-20 Shape of piston of two-cycle engine

Publications (1)

Publication Number Publication Date
JPS5788253A true JPS5788253A (en) 1982-06-02

Family

ID=15775578

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16352880A Pending JPS5788253A (en) 1980-11-20 1980-11-20 Shape of piston of two-cycle engine

Country Status (1)

Country Link
JP (1) JPS5788253A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0398739U (en) * 1990-01-23 1991-10-15
WO1997014880A3 (en) * 1995-10-16 1997-06-05 Mahle Gmbh Cast light metal piston for a two-stroke engine
DE202012101133U1 (en) * 2012-03-29 2013-07-01 Makita Corporation Internal combustion engine, in particular 2-stroke internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0398739U (en) * 1990-01-23 1991-10-15
WO1997014880A3 (en) * 1995-10-16 1997-06-05 Mahle Gmbh Cast light metal piston for a two-stroke engine
DE202012101133U1 (en) * 2012-03-29 2013-07-01 Makita Corporation Internal combustion engine, in particular 2-stroke internal combustion engine

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