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Evaporator with internal restriction

  • US 8,904,819 B2
  • Filed: 11/04/2013
  • Issued: 12/09/2014
  • Est. Priority Date: 12/31/2009
  • Status: Active Grant
First Claim
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1. A method of flash evaporating a liquid, the method comprising:

  • introducing the liquid into an inlet of a vaporization chamber;

    passing the liquid through an atomizer that is configured to ultrasonically vaporize the introduced liquid; and

    passing the vaporized liquid through a vapor nozzle that is fluidly cooperative with a vapor outlet of the vaporization chamber, where a collar with a first portion that forms an annular ring and a second portion that are removably connected to one another is placed in fluid communication with the vaporization chamber such that an outwardly extending first portion of the collar forms a non-filtered single opening with a substantially unobstructed vapor flowpath therethrough such that upon the passage of the vaporized liquid through the collar, it increases a pressure in the vaporization chamber while leaving the conductance of the vapor through the vapor nozzle substantially unchanged, the first portion further defining a first annular flange and the second portion defining a second annular flange that is placed adjacent the first portion such that at least the second portion defines a smaller cross-sectional area than the vapor outlet.

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