Four-stroke internal combustion engine for outboard motors

Details Four-stroke internal combustion engine for outboard motors Four-stroke internal combustion engine for outboard motors

1984-07-16

1985-06-18

Cross, E. Rollins

Internal-combustion engines

Lubricators

Crankcase, pressure control

123196R, 123196S, 184 618, 440 88, F01M 100

Patent

active

045235562

ABSTRACT:
Two embodiments of lubricating systems for the four cycle engine of an outboard motor, each of which embodies a lubricant sump that is disposed beneath the engine and to which lubricant is returned by gravity. In each embodiment, a buffer volume is provided that receives lubricant when the engine is oriented in other than a desired position so that the oil will flow into this buffer volume rather than being discharged from the sump. The lubricant is returned to the engine from the buffer volume when the engine is again placed in its normal orientation. In one embodiment of the invention, the buffer volume is provided by the camshaft chamber of the engine.

REFERENCES:
patent: 3799291 (1974-03-01), Becker
patent: 4461250 (1984-07-01), Mohr

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