CARBURETTOR FOR 2-CYCLE INTERNAL COMBUSTION ENGINE

PROBLEM TO BE SOLVED: To supply air to a scavenging port through an air control valve, reduce a size of a throttle valve in a carburettor, increase a flow speed of mixture gas passing through the throat valve and assure a proper amount of mixture gas supplied to a crank chamber. SOLUTION: An air pas...

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Bibliographische Detailangaben
Hauptverfasser:	TERAKADO HITOSHI, OONUMA MICHIROU, KOBAYASHI TAKESHI, TOBIUCHI TERUHIKO, WATANABE YUJI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To supply air to a scavenging port through an air control valve, reduce a size of a throttle valve in a carburettor, increase a flow speed of mixture gas passing through the throat valve and assure a proper amount of mixture gas supplied to a crank chamber. SOLUTION: An air passage 25 is connected to a part near a scavenging port 33 of a scavenging passage 33a communicating a crank chamber 39a with the scavenging port 33. The air passage 25 is provided with a first check valve 27 for allowing a flow of air toward the scavenging passage 33a. An amount of air flowing from an air cleaner D to the air passage 25 is controlled by an air control valve C. Mixture gas of air and fuel is sent from the carburettor B to the crank chamber 39a through a second check valve 37a. A diameter of a throttle hole of the throttle valve 15 in the carburettor B is made smaller than a diameter of a valve hole of the air control valve C.