Grease filter

Details Grease filter Grease filter

1995-08-15

1997-10-21

Chiesa, Richard L.

Gas separation

With nonliquid cleaning means for separating media

Solid agent cleaning member movingly contacts apparatus

55440, 55DIG36, B01D 4508

Patent

active

056791208

ABSTRACT:
A grease filter capable of separating the oil particles at an increased efficiency only with the use of a fan of small capacity. The grease filter includes a frame supporting a plurality of baffles spaced in a row. Each baffle has a generally V-shaped cross-section with first and second walls which merge into a bent. The grease filter is arranged to have the bents opposed to each other and to locate the first and second walls, respectively on upstream and downstream sides of the filter, thereby forming upstream passages between the first walls of the adjacent baffles and forming downstream passages between the second walls of the adjacent baffles. The baffles are configured such that the upstream passage has a width which is narrower towards a downstream end of the upstream passage than at an upstream end of the upstream passage, and that the downstream passage has a width which is greater than the width of the upstream passage at the downstream end thereof. Thus, the oil mist drawn into the filter is caused to increase the flow velocity as it is directed through the upstream passage and rush into the downstream passage at a desired maximum flow velocity past the bents. The oil mist thus entering the downstream passages is caused to change its flow direction, whereby the oil particles are deposited on the second walls by the effect of collision of the oil mist against the second wall and further by a centrifugal force generated by the change of the flow direction.

REFERENCES:
patent: 1926924 (1933-09-01), Sylvan
patent: 2753164 (1956-07-01), Miller
patent: 2760597 (1956-08-01), Brixius
patent: 3248858 (1966-05-01), Toke
patent: 3433146 (1969-03-01), Russell
patent: 4175938 (1979-11-01), Regehr et al.
patent: 4204847 (1980-05-01), Ko
patent: 4557740 (1985-12-01), Smith
patent: 5300131 (1994-04-01), Richard

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