Ultrahigh-pressure fan jet nozzle

An ultrahigh-pressure fan jet nozzle for use in a system having a pump to pressurize a volume of fluid to at least 30,000 psi upstream of an entrance orifice of the nozzle to perform a task via a tool, the nozzle comprising:

• a first end, a second end, an outer surface and an inner surface, the inner surface being defined by a bore extending through the nozzle 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 the pressurized fluid can enter the nozzle through the entrance orifice, pass through the nozzle and out the exit orifice to perform the task, the bore having a cylindrical section extending from the first end towards the second end and terminating in a conical section, an internal angle of the conical section of the bore near the exit orifice being less than 90.degree. such that a power distribution of the fan jet is concentrated near a center of the fan jet and tapers off toward an end of the fan jet, 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;
• and
• wherein 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 such that the exit orifice causes the pressurized fluid to exit the nozzle as an ultrahigh-pressure fan jet.

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 bore having a cylindrical section extending from the first end towards the second end and terminating in a conical section, an internal angle of the conical section of the bore near the exit orifice being 90.degree. such that a power distribution of the fan jet is uniform along a width of the fan jet, 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;
• and
• wherein 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.

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 bore having a cylindrical section extending from the first end towards the second end and terminating in a conical section, an internal angle of the conical section of the bore near the exit orifice being less than 90.degree. such that a power distribution of the fan jet is concentrated near a center of the fan jet and tapers off toward an end of the fan jet, 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;
• and
• wherein 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.

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 bore having a cylindrical section extending from the first end towards the second end and terminating in a conical section, an internal angle of the conical section of the bore near the exit orifice being greater than 90.degree. such that a power distribution of the fan jet is concentrated at an end of the fan jet and minimal near a center of the fan jet, 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;
• and
• wherein 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.