Integrated PCV valve and oil filler cap

Details Integrated PCV valve and oil filler cap Integrated PCV valve and oil filler cap

1979-01-26

1979-10-02

Myhre, Charles J.

Internal-combustion engines

Crankcase ventilation

123119B, F01M 1302, F02M 2506

Patent

active

041694325

ABSTRACT:
An internal combustion engine oil filler cap has a positive crankcase ventilation (PCV) valve assembly integral with it so that crankcase vapors normally flow at below predetermined flow volumes directly into the engine inlet-manifold, while clean air from the engine air cleaner assembly flows into the crankcase past a control valve; the crankcase vapors at higher flow rates opening a bypass valve to flow vapors simultaneously into the inlet manifold and also the air cleaner assembly, the control valve at this time closing.

REFERENCES:
patent: 3494339 (1970-02-01), Fernandez
patent: 3550570 (1970-12-01), Watson
patent: 3589347 (1971-06-01), Sawada
patent: 3664368 (1972-05-01), Sweeney
patent: 3677240 (1972-07-01), Sarto

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