Crankcase emission control system

Details Crankcase emission control system Crankcase emission control system

1995-07-21

1996-10-15

McMahon, Marguerite

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

F02M 2506

Patent

active

055644015

ABSTRACT:
A closed crankcase emission control assembly for an internal combustion engine incorporates into a single compact unit a pressure control assembly, a filter and an oil drain check valve. The pressure control assembly has a gate whereon oily contaminated crankcase emission impinge and oil is separated. The separated oil is collected in a reservoir and returned to the crankcase. The pressure control assembly also has a variable orifice agglomerator which agglomerates particles in the contaminated crankcase emission to form larger particles. Thus, the pressure control assembly simultaneously regulates pressure, separates oil and agglomerates particles. The agglomerated particles are filtered by a filter which may be coarse and clogs less often.

REFERENCES:
patent: 3754538 (1973-08-01), Ephraim et al.
patent: 3877451 (1975-04-01), Lipscomb
patent: 3903858 (1975-09-01), Hecht
patent: 4167164 (1979-09-01), Bachmann
patent: 4370971 (1983-02-01), Bush
patent: 4727807 (1988-02-01), Walker
patent: 5201301 (1993-04-01), Re
Brochure describing "Crankvent" Crankcase Emission Control Systems distributed by Parker Hannifin Corporation, Racor Division.

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