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Co-axial dual fluids metering system and methods

  • US 10,302,058 B2
  • Filed: 04/05/2013
  • Issued: 05/28/2019
  • Est. Priority Date: 04/05/2013
  • Status: Active Grant
First Claim
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1. A metering system for a fluid atomizer, comprising:

  • a housing having a first fluid inlet, a second fluid inlet, and an outlet;

    a mixing chamber;

    a first fluid metering device comprising;

    a rear end arranged away from the housing outlet;

    a front end arranged toward the housing outlet;

    a plurality of first fluid channels spaced apart circumferentially in the housing, the plurality of first fluid channels being angled in at least one of a radially inward direction and a tangential direction to create a swirl of first fluid flow in the mixing chamber;

    a first fluid flow controller positioned in the housing and movable axially in a flow channel provided between the first fluid inlet and the plurality of first fluid channels to control flow of first fluid from the first fluid inlet to the plurality of first fluid channels, the first fluid flow controller having a rearward most surface, a forward most surface, and a pass through bore;

    a second fluid metering device configured to control second fluid flow from the second fluid inlet to the mixing chamber, the second fluid metering device being arranged radially inward from and coaxially with the first fluid metering device, the second fluid metering device extending through the pass through bore of the first fluid flow controller from a location rearward of the rearward most surface to a location forward of the forward most surface of the first fluid flow controller to deliver the second fluid from a location rearward of the first fluid flow controller to the mixing chamber.

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