Crankcase positive ventilation valve

Details Crankcase positive ventilation valve Crankcase positive ventilation valve

1985-02-01

1986-08-19

Greenlief, Magdalen Y. C.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

123572, F02M 2500

Patent

active

046063218

ABSTRACT:
An improved positive crankcase ventilation valve is provided which provides a closed ventilation system by drawing air from for example the air cleaner through the crankcase. The air is circulated through the engine and drawn out of the cylinder head cover by manifold vacuum then into the engine combustion chamber. The improvement includes adjustable means for regulating the amount of air removed from the crankcase and provides means whereby the valve is also connected to the engine distributor via the vacuum distributor regulator for control of the engine spark ignition timing.

REFERENCES:
patent: 4210113 (1980-07-01), Heffernan
patent: 4291660 (1981-09-01), Molyneaux
patent: 4305369 (1981-12-01), Norman
patent: 4338908 (1982-07-01), Trong

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