Lubricating device for four stroke outboard motor

Details Lubricating device for four stroke outboard motor Lubricating device for four stroke outboard motor

1990-03-29

1991-08-06

Swinehart, Ed

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

123196R, 440900, B63H 2110, B63H 2138

Patent

active

050373404

ABSTRACT:
A number of embodiments of outboard motors powered by four cycle internal combustion engines having a dry sump lubrication system wherein the external oil reservoir is positioned externally of the engine. In some embodiments, the reservoir is contained directly in the power head and in another embodiment, the reservoir is contained externally of the outboard motor. The use of such external positioning of the lubricant reservoirs from the drive shaft housing permits the use of a large expansion chamber for the exhaust system in the drive shaft housing. In one embodiment, a pair of expansion chambers are provided therein.

REFERENCES:
patent: 4588385 (1986-05-01), Suzuki et al.
patent: 4692123 (1987-09-01), Tada et al.
patent: 4735590 (1988-04-01), Mondek
pp. 530 & 531 of Internal Combustion Engines and Air Pollution by Edward F. Obert, 1973.

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