IMPROVED AIR/FUEL SUPPLY DEVICE LOCATED IN CRANKCASE

PROBLEM TO BE SOLVED: To reduce emission of exhaust gas while improving fuel economy of a 2-cycle engine. SOLUTION: A piston engine includes a nozzle diffuser to supply fuel to a crankcase. The nozzle diffuser has an inlet end, an outlet end, and a throat part between the inlet end and the outlet en...

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Bibliographische Detailangaben
Hauptverfasser:	KAMO ROY, KAMO LLOYD, SAAD PHILIPE F
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL 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 WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To reduce emission of exhaust gas while improving fuel economy of a 2-cycle engine. SOLUTION: A piston engine includes a nozzle diffuser to supply fuel to a crankcase. The nozzle diffuser has an inlet end, an outlet end, and a throat part between the inlet end and the outlet end. Its cross sectional area is smaller than cross sectional area of the inlet or outlet end, and inner surface of an intake port at the throat part is tapered. The nozzle diffuser may be included in a crankshaft. Speed, pressure, and temperature of air and fuel supplied are changed, so that air and fuel are supplied as they are further uniformly mixed. As a result, engine output is improved, fuel consumption is improved, and exhaust gas emission is reduced. COPYRIGHT: (C)2004,JPO