Self-cleaning air filter
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United States of America Patent
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Feb 26, 2013
Grant Date -
Mar 29, 2012
app pub date -
Sep 24, 2010
filing date -
Sep 24, 2010
priority date (Note) -
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Abstract
The self-cleaning air filter uses reverse pulse self-cleaning for small scale, small volume air filtration applications, such as vehicles and motorized equipment. The self-cleaning air filter includes a filter casing, a filter element housed within a filter casing, an electronically controlled pulse valve that releases the compressed air pulse, and a pulse pressure relief vent. During the cleaning cycle, the pulse pressure vent opens to vent the compressed air pulse to the atmosphere thereby maintaining the positive pressure differential between the inside and outside of the filter element, which sustains the cleaning action for the duration of the compressed air pulse.
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