Fluid flow nozzle assembly and method

  • US 5,641,120 A
  • Filed: 06/08/1995
  • Issued: 06/24/1997
  • Est. Priority Date: 06/08/1995
  • Status: Expired due to Term
First Claim
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1. An improved laminar flow nozzle comprising:

  • a generally cylindrical outer wall and a generally cylindrical inner wall radially spaced inwardly from said outer wall;

    a generally circular bottom wall and a generally circular top wall defining an outer fluid chamber;

    means for introducing liquid into said outer chamber;

    means for providing for generally circumferencial flow within said outer chamber;

    inlet means located in the lower portion of said inner cylindrical wall to allow fluid flow from said outer chamber into an inner chamber located within said inner cylindrical member and further defined by said bottom wall and said top wall;

    diffuser means located within said inner chamber and spaced upwardly from said bottom wall and spaced downwardly from said top wall;

    said top wall having an opening therein;

    said opening including an orifice means;

    whereby fluid enters said outer chamber and flows tangentially and circumferencially in said outer chamber;

    then flows radially inwardly into said inner chamber through said openings below said diffuser means;

    then through said diffuser means;

    whereby major currents are dampened in said diffuses means;

    said liquid then flows from said diffuser to said orifice means and said fluid exits from said orifice means with substantially laminar flow.

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