Oil-fill opening for introducing lubricating oil into an interna

Details Oil-fill opening for introducing lubricating oil into an interna Oil-fill opening for introducing lubricating oil into an interna

1990-04-30

1991-02-19

Lazarus, Ira S.

Lubrication

Lubricators

Refilling device

123 4186, 123572, 137171, 220253, 220255, F16N 2100

Patent

active

049935178

ABSTRACT:
A oil-fill opening 12 for introducing lubricating oil into an internal combustion engine provided with a cap 15 which has a bayonet lock. On the outside of the wall of the oil-fill opening there is an oil separator 22 through which the blow-by gases from the crankcase are conveyed to the intake manifold and/or to the clean-air side of the air filter. Oil collected in the oil separator 22 is returned through a return port 23, 24 between the oil separator 22 and the oil-fill opening 12. To prevent oil from getting into the oil separator when oil is poured into the oil-fill opening 12 and backing up therein so that under certain circumstances it reaches the clean-air side of the air filter, a shutter 25 in the form of a rotary slide valve, which covers the return port 23, 24 between the oil separator 22 and the oil-fill opening 12 when the cap 15 is removed, is provided within the oil-fill opening. The turning of the cap 15 when the cap is opened causes the slide valve to positively cover the return port, and when the cap 15 is closed, the return port 23, 24 is again uncovered.

REFERENCES:
patent: 1761944 (1930-06-01), Taylor
patent: 1822201 (1931-09-01), Cochrane
patent: 3774722 (1973-11-01), Elder
patent: 4169432 (1979-10-01), White
patent: 4401093 (1983-08-01), Gates, Jr. et al.
patent: 4579092 (1986-04-01), Kandler

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