Air-oil separator utilizing centrifugal separation

Internal-combustion engines – Charge forming device – Crankcase vapor used with combustible mixture

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F02B 4708, F02M 2506

Patent

active

054873711

ABSTRACT:
The design and construction of past air-oil separators included labyrinth type designs with a series of baffles which can be expensive and complicated to manufacture. The present invention utilizes an air-oil separator which allows the introduction of blow-by gas to high velocity fresh air at its boundary layer in order to separate oil and air from the blow-by gas. The air-oil separator has an annular housing with first and second compartments. The blow-by gas enters a constricted middle portion of the first compartment through a plurality of openings. Simultaneously, fresh air at a high velocity flows through the constricted middle portion. The blow-by gas is accelerated with the fresh air flow at the boundary layer of the fresh air. The fresh air flow and blow-by gas reach an annular opening in the second compartment which strips the boundary layer from the fresh air flow causing the blow-by gas to split off into an annular outer gallery at a high velocity. The outer gallery has an annular wall with a surface curving away from the fresh air flow path which promotes a centrifugal action causing the oil particles within the blow-by gas to collide with and collect on the wall surface. The oil, now removed from the blow-by gas, drains from the outer gallery into the oil pan. The fresh air and remaining air from the blow-by gas are carried toward the combustion chamber. Boundary layer fluid flow and centrifugal Separation are utilized in this simple and efficient method of air-oil separation.

REFERENCES:
patent: 2291879 (1942-08-01), Chandler et al.
patent: 3158142 (1964-11-01), Bradshaw
patent: 3380441 (1968-04-01), Lewis
patent: 4184858 (1980-01-01), Walker
patent: 4269607 (1981-05-01), Walker
patent: 4270508 (1981-06-01), Lindberg
patent: 4459966 (1984-07-01), Sakano et al.
patent: 4501234 (1985-02-01), Toki et al.
patent: 4721090 (1988-01-01), Kato
patent: 4724807 (1988-02-01), Walker
patent: 4930456 (1990-06-01), Schiavi
patent: 5140957 (1992-08-01), Walker

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