Gas separation – With nonliquid cleaning means for separating media – With automatic control of cleaning means
Patent
1978-08-04
1979-11-13
Nozick, Bernard
Gas separation
With nonliquid cleaning means for separating media
With automatic control of cleaning means
55302, 55418, 55429, 55472, 55481, B01D 4602
Patent
active
041742044
ABSTRACT:
A self-contained self-cleaning air cleaner that includes a housing with a first partition mounted within the housing to divide the interior of the housing into a clean air chamber and a filtering chamber. The first partition has an opening which provides fluid communication between the filtering and cleaning chambers. A filtering apparatus is disposed within the filtering chamber to provide filtered fluid communication between the filtering chamber and the clean air chamber through the opening in the partition. A fan or blower is mounted within the housing for drawing air through the housing from a dust-laden air inlet which opens into the filtering chamber to a clean air outlet which opens into the clean air chamber. A small capacity compressor is integrally mounted within the housing and is directly driven by the fan or blower. A reverse air pulse valve is connected to the compressor and disposed within the housing to direct a pulse of clean air into the filter apparatus to dislodge the dust collected thereon. Electrical control circuitry is provided to periodically and automatically open the reverse pulse air valve. The compressor is preferably connected to a compressed air accumulator within the housing and the control circuitry includes a pressure responsive device which monitors the pressure within the accumulator such that the air valve which is also connected to the accumulator is actuated or opened when the pressure within the accumulator reaches a predetermined value. The fan has a rotating shaft and the compressor has a rotating driven shaft. A flexible shaft is provided to connect the rotating shaft of the compressor to the fan rotating shaft to provide the drive for the compressor.
REFERENCES:
patent: 2788198 (1957-04-01), Anderson
patent: 3394532 (1968-07-01), Oetiker
patent: 3739557 (1973-06-01), Anderson et al.
patent: 3837150 (1974-09-01), Kubiak
patent: 4007026 (1977-02-01), Groh
patent: 4058379 (1977-11-01), Cheng
Donaldson & Company, Inc.
Nozick Bernard
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