Portable water driven high velocity fan

  • US 5,013,214 A
  • Filed: 02/06/1989
  • Issued: 05/07/1991
  • Est. Priority Date: 02/06/1989
  • Status: Expired due to Term
First Claim
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1. A portable water driven fan comprising:

  • (a) a generally cylindrically shaped fan housing open to the passage of air at both ends;

    (b) at least two shaft bearings;

    (c) a shaft bearing support means contained in said housing and for supporting said at least two bearings;

    (d) a shaft supported by said at least two bearings and defining a shaft axis;

    (e) a turbine nozzle body defining a turbine nozzle outlet surface and positioned inside said housing and firmly attached, to said housing and comprising a turbine inlet cavity and a plurality of nozzles each of said nozzles providing a passageway for water to pass from said turbine inlet cavity to said turbine nozzle outlet surface and defining a nozzle centerline, where each of nozzle centerlines;

    (1) intersects said turbine nozzle outlet surface at points of intersection on a circle defining a nozzle exit circle which circle is concentric about said shaft axis and defines a nozzle exit plane which is perpendicular to said axis and(2) forms an angle of about 10 to 30 degrees with said nozzle exit plane;

    (f) a water inlet means for providing water under pressure to said water cavity;

    (g) an axial flow bladed impeller solidly attached at one end of the said shaft;

    (h) an axial flow water turbine wheel solidly attached at the other end of said shaft and fully submerged in water having a plurality of turbine blades, said wheel and blades being positioned adjacent to said turbine body outlet surface such that water discharged from said nozzles impinge on said blades;

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