Combined pump and self-cleaning centrifugal contamination separa

Details Combined pump and self-cleaning centrifugal contamination separa Combined pump and self-cleaning centrifugal contamination separa

1975-07-07

1978-01-03

Lutter, Frank W.

Liquid purification or separation

Diverse distinct separators

Including a filter

55242, 55406, 210409, 210414, 210415, 233 15, 415121G, 415143, 415215, B01D 2102, B01D 2326, B01D 3338, B01D 4304

Patent

active

040665526

ABSTRACT:
A rotating centrifugal impeller spins contaminated fluid at high speed around the outside of a stationary cylindrical particle barrier filter screen and by centrifugal action separates the solid contaminants for removal to a dirt accumulator. Simultaneously, the impeller pumps or propels the remaining clean fluid radially inward, causing it to turn abruptly from its tangential path and to flow through the screen openings to a central chamber from which the fluid is discharged. Even though some of the solid particles may be smaller than the screen openings, they cannot turn radially inward from their trajectories sharply enough to pass through the openings and instead will be contained in their tangential path until centrifuged outward. The barrier screen has a smooth external surface so that it may be washed clean by the high velocity tangential flow of the spinning fluid across the screen, thus preventing any particle build-up on the screen and clogging thereof during start-up and shut-down.

REFERENCES:
patent: 2975899 (1961-03-01), Cannon et al.
patent: 3029951 (1962-04-01), Cannon
patent: 3092578 (1963-06-01), Cannon et al.
patent: 3102491 (1963-09-01), Adams
patent: 3159572 (1964-12-01), Ranhagen
patent: 3261294 (1966-07-01), Schofield et al.
patent: 3633754 (1969-12-01), Marsh
patent: 3639089 (1972-02-01), Lock

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