Importance

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Abstract

A filter cleaning system for use with a fabric filter mounted in a housing and defining an upstream side at which particulates are separated from a fluid stream passing through the filter and collected. The fabric filter also has a downstream side that is substantially free of the particulates. The filter cleaning system comprises a blowpipe for supplying a pressurized fluid. A one-piece nozzle is made from a tubular member having a substantially constant cross-section extending along the length of the member. The nozzle is attached to the blowpipe at a first end portion. The nozzle is in fluid communication with the blowpipe to direct a portion of the pressurized fluid from a second opposite end portion into the downstream side of the filter to dislodge particulates from the upstream side. An aspirator is located upstream and spaced from the second end portion of the nozzle. The aspirator enables an extra volume of fluid to be delivered from the second end portion of the nozzle than is delivered from the blowpipe to the first end portion of the nozzle.

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First Claim