Axial reverse flow filter assembly for fluids

Details Axial reverse flow filter assembly for fluids Axial reverse flow filter assembly for fluids

1989-05-13

1989-08-01

Nozick, Bernard

Liquid purification or separation

With heater or heat exchanger

For filter

210443, 210439, 210455, 210440, 210451, B01D 4600

Patent

active

048531200

ABSTRACT:
Presented is an axial reverse flow by-pass filter assembly for fluids, such as lubricating oils and fuels, which cooperates with a full-flow filter to remove contaminants from lubricating oil and fuel. The filter assembly includes a base member cooperating with a cover member to enclose a filter element formed from a spirally wound roll of tissue paper. Oil or fuel is forced by the construction of the assembly to first flow upwardly through the central core of the filter element, then flow radially outwardly across the entire annular end of the roll of tissue paper, and then while being filtered, reverses its flow and flows downwardly between the plies of tissue paper and through a densely compacted zone of the tissue paper where even micro-sized solid contaminants are removed from the oil or fuel before it passes from the filter assembly.

REFERENCES:
patent: 2738879 (1956-03-01), Franz
patent: 3308956 (1967-03-01), Yeeet al.
patent: 3504803 (1970-04-01), Brayman
patent: 3572509 (1971-03-01), Dexter
patent: 3615018 (1971-10-01), Johnson
patent: 4017400 (1977-04-01), Schade

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