Liquid jet nozzle

Claim 2

A nozzle head including a cross section of a continuously reduced diameter and adapted to accept a liquid under pressure and to change the momentum of said liquid through a substantial angle and to increase the velocity thereof, comprising a first reduction section consisting of substantially a continuous development of an eccentric reducing collar having the shape of a frustrum of an oblique cone, having a back wall lying on a surface of tangency with an associated source of fluid, and a second section consisting of a member having the shape of a concentric elbow having a bend which lies in the same plane as the center lines of said reducing collar, and oriented to continue back away from the Direction of the bend of said reducing collar so that the back wall of said nozzle forms the surface of a generally continuously or redirected elbow lying in a continuously turning surface while the front wall thereof assumes a re-entrant shape, first turning toward said back wall, and then reversing into converging parallelism with the said back wall.

Claim 3

In a liquid jet nozzle from which a liquid is discharged at high energy in a uniform stream of high velocity and particularly adpated for the agitation of subdivided solids impacted by said stream, stem means comprising a first section having the shape of a circular cylinder, means for at least partially rotating said stem means about its axis, means for coupling said cylindrical section to a source of liquid under pressure, a nozzle head connected to the one end of said cylindrical section, said head having a first portion formed to fit continuously in alignment with cylindrical section and other portions of progressively reduced cross sections, said nozzle head terminating in a nozzle orifice opening in a plane at a substantial angle to said stem means, said nozzle head including first and second reducing sections, said first reducing section approximating an eccentric reducer having a back wall toward which the center line of said eccentric reducer approaches, said back wall being aligned as a continuation of said stem means, and a front wall, the center of which reentrantly progresses toward said back wall, the circumference of said eccentric reducer being continuously connected to said stem, part of which is continuous with the forward portion of the front wall of said stem means, the remaining portions of said reducing section front wall gradually converging towards said back wall thereof and diminishing in size by generally circular sections, said nozzle head being further constructed and arranged to be confined throughout its extent within an extension of said cylindrical section, thereby serving to change the direction and velocity of the flow of liquid by a substantial angle within that dimension.

Claim 4

In a liquid jet nozzle from which a liquid is discharged at high energy in a uniform stream of high velocity and particularly adpated for the agitation of subdivided solids impacted by said stream, stem means comprising a first section having the shape of a circular cylinder, means for at least partially rotating said stem means about its axis, means for coupling said cylindrical section to a source of liquid under pressure, a nozzle head connected to the one end of said cylindrical section, said head having a first portion formed to fit continuously in alignment with cylindrical section and other portions of progressively reduced cross sections, said nozzle head terminating in a nozzle orifice opening in a plane at a substantial angle to said stem means, said nozzle head including first and second reducing sections, said first reducing section approximating an eccentric reducer having a back wall toward which the center line of said eccentric reducer approaches, said back wall being aligned as a continuation of said stem means, and a front wall, the center of which reentrantly progresses toward said back wall, the circumference of said eccentric reducer being continuously connected to said stem, part of which is continuous with the forward portion of the front wall of said stem means, the remaining portions of said reducing section front wall gradually converging towards said back wall thereof and diminishing in size by generally circular sections, said nozzle head being further constructed and arranged to be confined throughout its extent within an extension of said cylindrical section, thereby serving to change the direction and velocity of the flow of liquid by a substantial angle within that dimension.

Claim 5

In a liquid jet nozzle from which a liquid is discharged at high energy in a uniform stream of high velocity and particularly adapted for the agitation of subdivided solids impacted by said stream, stem means comprising a first section having the shape of a circular cylinder, means for at least partially rotating said stem means about its axis, means for coupling said cylindrical section to a source of liquid under pressure, a nozzle head connected to the one end of said cylindrical section, said head having a first portion formed to fit continuously in alignment with cylindrical section and other portions of progressively reduced cross sections, said nozzle head terminating in a nozzle orifice opening in a plane at a substantial angle to said stem means, said nozzle head including front and rear walls, the center of the rear wall being substantially in alignment with the cylindrical stem section, said front wall being re-entrant with respect to an extension of the cylindrical stem section as a whole and forming a continuous throatlike closure which together with said rear wall, and side walls forms therewith a nozzle head of continuously reducing cross section, said nozzle head being constructed and arranged to be confined throughout its extent within an extension of said cylindrical section, thereby serving to change the direction and velocity of the flow of liquid by a substantial angle within that dimension.

Claim 6

In a liquid jet nozzle from which a liquid is discharged at high energy in a uniform stream of high velocity and particularly adapted for the agitation of subdivided solids impacted by said stream, stem means comprising a first section having the shape of a circular cylinder, means for at least partially rotating said stem means about its axis, means for coupling said cylindrical section to a source of liquid under pressure, a nozzle head connected to the one end of said cylindrical section, said head having a first portion formed to fit continuously in alignment with cylindrical section and other portions of progressively reduced cross sections, said nozzle head terminating in a nozzle orifice opening in a plane at a substantial angle to said stem means, said nozzle head including front and rear walls, the center of the rear wall being substantially in alignment with the cylindrical stem section, said front wall being re-entrant with respect to an extension of the cylindrical stem section as a whole and forming a continuous throatlike closure which together with said rear wall, and side walls forms therewith a nozzle head of continuously reducing cross section, said nozzle head being constructed and arranged to be confined throughout its extent within an extension of said cylindrical section, thereby serving to change the direction and velocity of the flow of liquid by a substantial angle within that dimension.

Claim 7

A liquid jet nozzle as in claim 3, in which the line of centers of said reducing sections lie in a plane.

Claim 8

A liquid nozzle as in claim 3, further including a plurality of vanes positioned in the cylindrical section and aligned therewith to pass the liquid therethrough in non-turbulent flow.

Claim 9

A nozzle head as in claim 5, having a nozzle orifice section mounted at the outward end of said reduction section, said orifice section being shaped to further reduce the cross section of the interior therEof in the shape of a frustrum of a cone and terminating at its small or outer end in a short cylindrical section, the outer edge of which is relieved away to form a knife edge orifice.

Claim 10

A nozzle head as in claim 6, further including a plurality of straightening vanes positioned immediately adjacent said orifice to aid in eliminating turbulent flow of liquid therethrough.