Centrifugal oil filter with particle collector

Details Centrifugal oil filter with particle collector Centrifugal oil filter with particle collector

1992-01-24

1993-04-20

Dawson, Robert A.

Liquid purification or separation

Tangential flow or centrifugal fluid action

With movable means affecting flow

2105121, 494 43, 494 50, 494 60, 494 65, B04B 504

Patent

active

052039994

ABSTRACT:
A centrifugal oil filter comprises a bowl which is rotatable about a vertical axis within a fixed casing and which is open at its upper and lower ends, the inner wall of the bowl being provided with grooves which trap particles in the polluted oil fed into the bowl as the bowl is rotated and the oil flows upwards along the wall under centrifugal action and which allow the particles to fall therefrom under gravity to a particle collector positioned below the open lower end of the bowl when the bowl stops rotating. The inner wall of the bowl is also formed with an annular recess above the particle trapping grooves. This recess fills with oil when the bowl is rotated, and this oil flows out and downwards along the wall under gravity when the bowl stops, thereby cleaning the filter wall.

REFERENCES:
patent: 4312751 (1982-01-01), Casamitjana
patent: 4533468 (1985-08-01), Ensor et al.
patent: 4663035 (1981-05-01), Rosander
Patent Abstracts of Japan, vol. 6, No. 35 (C-93) [913], Mar. 3, 1982, & JP-A-56-152753, Nov. 26, 1981, S. Sumino, "Sludge Dehydrating and Separating Device for Purification Tank".
Soviet Inventions Illustrated, section P, week 8724, Jun. 24, 1987, Derwent Publications Ltd., London, GB, pp. 41, No. 87-168532/24 & su-a-1264985 (mosc cons road mach), Oct. 23, 1986, "Centrifugal Oil Cleaner--Has Cyindrical Preforated Cowling With Shaped . . . ".

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