Low-profile blower and filter apparatus for supplying clean air

Details Low-profile blower and filter apparatus for supplying clean air Low-profile blower and filter apparatus for supplying clean air

1988-05-16

1991-10-01

Nozick, Bernard

Gas separation

With gas flow effecting means

Plurality of impellers arranged in parallel or performing...

553852, 55473, B01D 4600

Patent

active

050530658

ABSTRACT:
Low profile blower and filter apparatus for supplying clean air to selected environments is configured wherein a relatively low powered blower unit employing a backward curved impeller is utilized for a selected unit of volume. The number of blower units employing the backward curved impeller within the given module is determined as a function of the number of selected units of volume in the blower and filter module configured. Each blower unit employing a backward curved impeller produces a radial air flow which pressurizes a plenum formed within the module configuration in a substantially uniform manner enabling a substantially laminar flow through a filter disposed perpendicularly to the direction of the air flow from the backward curved impeller without use of baffles. Since the blower units selected are relatively small and no baffle structure need be employed, the height dimension of the resulting unit is markedly reduced to obtain a low profile module.

REFERENCES:
patent: 3080695 (1963-03-01), Hay
patent: 3217470 (1965-11-01), Omohundro
patent: 4560395 (1985-12-01), Davis
ebm Industries, Inc. "Motorized Impellers for 2x4 Ceiling Mounted HEPA Filters Clean Room Modules" 4-1987.

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