Gas separation – With nonliquid cleaning means for separating media – For moving indefinite or continuous length separating media
Patent
1984-07-26
1985-04-30
Hart, Charles
Gas separation
With nonliquid cleaning means for separating media
For moving indefinite or continuous length separating media
55291, 55302, 55337, B01D 5000
Patent
active
045141932
ABSTRACT:
Cylindrical self-cleaning air cleaners are disclosed. In one embodiment a cylindrical element chamber is provided and is surrounded by an inertial tube pre-cleaner. A filter element is disposed in the element chamber supported for rotation by a turntable, which is sealed to prevent the passage of uncleaned air around and through the turntable. Nozzles are provided and are adaptable to a source of pressurized air, with the nozzles extending along the inside surface of the filter element to provide a line of pressurized reverse air flow. A slot is provided in the scavenging air chamber to receive particles dislodged from the filter element during a cleaning operation. Scavenging outlet ports are also provided to draw out scavenging air. In a cleaning operation the filter element is rotated and the pressurized air is blown back through the filter with dislodged particles exiting through the slot in the scavenging chamber and out the scavenging air outlet port. Additionally, a selectively openable bypass port is provided, so that the filter may be bypassed when desired. In another embodiment the inertial tube pre-cleaner is positioned on one end of the cylindrical filter housing, with the cleaner outlet port on the opposite end. The filter is mounted for rotational movement via a turntable, which is sealed, with a nozzle provided on the inside thereof, and a receiver tube radially aligned therewith on the outside of the filter, to receive particulate matter dislodged from the filter during a cleaning operation, channel it to the scavenging air chamber of the pre-cleaner, for disposal of the scavenging air port.
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Donaldson & Company, Inc.
Hart Charles
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