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Cavitation nozzle assembly

  • US 4,342,425 A
  • Filed: 08/15/1980
  • Issued: 08/03/1982
  • Est. Priority Date: 04/10/1980
  • Status: Expired due to Term
First Claim
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1. A cavitation nozzle assembly adapted to be connected to a source supplying liquid under superatmospheric pressure and for discharging a high velocity jet of said liquid with cavitation bubbles therein, said nozzle comprising inter alia;

  • a supply chamber connectible to said source for receiving said liquid therefrom, said chamber including an upstream portion divergent in a downstream direction, a downstream portion convergent in the downstream direction, and a central section of generally constant cross-sectional area interconnecting the divergent and convergent portions, said convergent portion being conical in form and converging to an apex so as to define an enclosed angle of about 65°

    to 90°

    ; and

    a discharge orifice at the apex of the convergent portion, and being circular in cross-section with a diameter in the range from about 1.2 mm to about 4.0 mm, said supply liquid undergoing expansion upon passage through said orifice such that cavitation bubbles form in the high velocity jet discharged therefrom.

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