Internal combustion engine lubricating system

Details Internal combustion engine lubricating system Internal combustion engine lubricating system

1997-11-13

1999-01-12

Yuen, Henry

Internal-combustion engines

Lubricators

Crankcase, pressure control

123196CP, 184 628, F01M 100

Patent

active

058574425

ABSTRACT:
To prevent oil in which air is mixed from being led to an oil pump, preventing the number of parts from being increased in a lubricating system of an internal combustion engine wherein an oil relief valve dipped in oil in an oil pan is connected to a halfway part of a feed oil passage connecting the oil pan and an oil filter. An oil passage extends approximately horizontally and a connecting hole is provided with an axis approximately perpendicular to the oil passage for communicating with the oil passage which is open on the upper surface of a passage forming part formed in the passage forming part integrated with the bottom of an oil pan. An oil relief valve is coaxially connected to the connecting hole with the pressure receiving surface of its plunger directed downwardly. A wall part surrounds the oil relief valve on the side of an oil strainer and is integrated with the bottom of the oil pan.

REFERENCES:
patent: 3485324 (1969-12-01), Novak
patent: 4462350 (1984-07-01), Kurata
patent: 4729349 (1988-03-01), Sonoda et al.
patent: 4898207 (1990-02-01), Ueki et al.

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