Air filter with high dust-holding capacity

Details Air filter with high dust-holding capacity Air filter with high dust-holding capacity

1988-03-25

1989-01-03

Hart, Charles

Gas separation

With means securing or retaining separating media

Unit or cohesive sheet-like media in flow line or frame

55521, B01D 4612

Patent

active

047954817

ABSTRACT:
An air filter of the accordion-pleated type with successive media pleats providing substantially parallel walls held in spaced relation by corrugated spaces and sealed within a square or rectangular frame. The spacers which separate the media in the upstream direction are of higher amplitude than the spacers separating the media walls on the downstream side. The upstream spacers are preferably about 2 to 21/2 times greater in amplitude than the downstream spacers. The filters are particularly advantageous in applications where the loading or dust collection rate is accelerated and the final pressure drop is uncommonly high. Dust holding capacity is significantly increased over similar, prior art filters having equal spacing of the media walls in the upstream and downstream directors.

REFERENCES:
patent: 3807150 (1974-04-01), Maracle
patent: 4619676 (1986-10-01), Tuyck

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