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Quiet pulse valve

  • US 9,993,762 B2
  • Filed: 05/13/2013
  • Issued: 06/12/2018
  • Est. Priority Date: 05/13/2013
  • Status: Active Grant
First Claim
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1. A valve device useful for pulsed compressed air cleaning of a filter unit comprising:

  • a housing comprising a top connected to housing sides with free ends opposite the top defining an interior area with a plunge comprising a base connected to base sides with free ends opposite the base slidably positioned within the interior area for free ends of base sides contact with the top, with the housing arranged in an opening of a pressure vessel containing compressed air;

    a cavity defined by an extended portion of the top within the interior area;

    a hollow plug portion extending from an interior surface of the base between the base sides of the plunge to a connected resilient portion slidably positioned within the cavity;

    ducts through the hollow plug portion for fluid communication from the interior area, through the ducts, and through the hollow plug portion into a nozzle pipe;

    a plurality of openings in the housing sides, wherein the openings provide fluid communication between an inside of the pressure vessel and the interior area of the housing, for a flow of compressed air from the inside of the pressure vessel, through the plurality of openings, into the interior area of the housing, through the ducts, through the hollow plug portion and to the nozzle pipe useful for cleaning at least a portion of the filter unit when the plunge is in an open position; and

    a fluid supply on the housing for control of a flow of fluid to the cavity within the housing to cause movement of the resilient portion and the plunge to a closed position for blocking the plurality of openings and blocking the flow of compressed air from the pressure vessel through the openings, into the interior area of the housing, through the ducts, through the hollow plug portion and to the nozzle pipe.

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