V -TYPE ENGINE, OUTBOARD MOTOR, AND WATERCRAFT

An outboard motor in which an exhaust pipe arrangement is easily performed and the center of gravity can be lowered. Cylinders where pistons operate are arranged in a V-shape and a crankshaft driven by driving of the pistons is disposed vertically, and upper exhaust pipes (exhaust pipes) communicati...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Kono, Shohei, Niwa, Hirosuke, Araki, Hayate
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An outboard motor in which an exhaust pipe arrangement is easily performed and the center of gravity can be lowered. Cylinders where pistons operate are arranged in a V-shape and a crankshaft driven by driving of the pistons is disposed vertically, and upper exhaust pipes (exhaust pipes) communicating with exhaust openings in the respective banks of a cylinder head and a catalyst holder that is provided in a position, which corresponds to a lower side of the cylinder, of the upper exhaust pipe and that holds a catalyst are included. In this manner, arrangement of the upper exhaust pipe and a lower exhaust pipe is easily performed while the catalytic effect is maintained and the center of gravity can be lowered, and also, the size and weight of the V-type engine can be reduced.