Internal combustion engine for small planing watercraft

Details Internal combustion engine for small planing watercraft Internal combustion engine for small planing watercraft

1997-05-30

1999-03-30

Kwon, John

Internal-combustion engines

Lubricators

Crankcase, pressure control

114270, 440 84, F02P 100

Patent

active

058875646

ABSTRACT:
A four-cycle engine mounted on a small planing watercraft is disclosed, in which an oil tank is integrally formed with the side walls of a cylinder head, a cylinder block, a crankcase, or an oil pan of the engine body. An oil receptacle is arranged on the bottom of the engine body and communicating with the internal space of the crankcase. The engine body includes an oil passage for transporting the engine oil collected in the oil receptacle to the oil tank by a scavenging pump, and an oil passage for supplying the engine oil in the oil tank to the various parts of the engine body by a feed pump. The oil tank may be formed of a tank base portion integral with the side walls of the engine body and a tank cover. Oil mist separating fin may be arranged in the oil tank.

REFERENCES:
patent: 4628878 (1986-12-01), Nakano et al.
patent: 4732237 (1988-03-01), Nakano

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