Oil pan structure for internal combustion engine

Details Oil pan structure for internal combustion engine Oil pan structure for internal combustion engine

1990-04-06

1991-08-13

Yeung, James C.

Lubrication

Systems

Crank-type machines

184106, 123196R, F01M 104

Patent

active

050388908

ABSTRACT:
An oil pan for an internal combustion engine having an engine lubrication system. The oil pan comprises a shallow bottom section and a sump section. An oil return path is formed at a side of the bottom surface of the shallow bottom section to which a major part of lubrication oil in the shallow bottom section is guided under the force caused by the rotation of the crankshaft. The oil return path is formed by the generally tube-shaped members. The oil return path has an inlet opened opposite to the crankshaft and an outlet opened opposite to the bottom of the sump section. Therefore, the lubrication oil in the shallow bottom section is effectively guided to the inlet of the oil return path and returned into the sump section under the force caused by the rotation of the crankshaft or the like.

REFERENCES:
patent: 1713872 (1929-05-01), Hunt
patent: 2408923 (1946-10-01), Frederick
patent: 2577188 (1951-12-01), Hall
patent: 3688871 (1972-08-01), Krestan et al.
patent: 3888227 (1975-06-01), Green et al.
patent: 4848293 (1989-07-01), Sasada et al.

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