Patent ID: 6019298
Filing Date: 2000-02-01
Classification: B05B,B23P,B26F

Abstract:
An ultrahigh-pressure fan jet nozzle for use in a system having a source of ultrahigh-pressure fluid provided upstream of an entrance orifice of the nozzle, the nozzle comprising:a body having a first end, a second end, an outer surface and an inner surface, the inner surface being defined by a bore extending through the body from the first end to the second end such that the first end is provided with the entrance orifice and the second end is provided with an exit orifice and a volume of ultrahigh-pressure fluid can enter the nozzle through the entrance orifice and pass through the nozzle and out the exit orifice, the inner surface being strengthened and finished by pressing a cone-shaped die into the bore, the bore having a cylindrical section extending from the first end towards the second end and terminating in a conical section, the cylindrical section and the conical section having equal diameters at their point of intersection and being symmetrically aligned along a longitudinal axis of the body; andwherein a wedge-shaped notch extends from the second end in towards the first end only until the wedge-shaped notch intersects an end region of the conical section of the bore, such that a shape of the exit orifice is defined by the intersection of the end region of the conical section of the bore and the wedge-shaped notch and is symmetric about both a major and a minor axis.