Rotor nozzle for a high-pressure cleaning device

A rotor nozzle for a high-pressure cleaning device comprising:

• a casing having a pot-shaped recess in a front wall thereof, said recess surrounding a central opening in said front wall;
• a nozzle body having a bore extending therethrough, said nozzle body being supported at a spherical end thereof in said pot-shaped recess and extending in a longitudinal direction along a portion of said casing, an outside diameter of said nozzle body being smaller than an inside diameter of said casing and having a bearing surface thereon;
• an inlet opening tangentially into said casing, for causing a liquid introduced into said casing therefrom to rotate about a longitudinal axis of the casing, thereby rotating said nozzle body with said bearing surface bearing on an inside wall of said casing with the longitudinal direction of said nozzle body being oriented at an incline with respect to the longitudinal axis of said casing;
• wherein:
• said bearing surface of said nozzle body consists of a friction material having a coefficient of friction that is >0.25 in relation to a material forming said inside wall of said casing to counteract all but a very slight rotation of said nozzle body about its own axis, and
• said friction material comprises an elastomeric O-ring.

A rotor nozzle for a high-pressure cleaning device comprising:

• a casing having a pot-shaped recess in a front wall thereof, said recess surrounding a central opening in said front wall;
• a nozzle body having a bore extending therethrough, said nozzle body being supported at a spherical end thereof in said pot-shaped recess and extending in a longitudinal direction along a portion of said casing, an outside diameter of said nozzle body being smaller than an inside diameter of said casing and having a bearing surface thereon;
• an inlet opening tangentially into said casing, for causing a liquid introduced into said casing therefrom to rotate about a longitudinal axis of the casing, thereby rotating said nozzle body with said bearing surface bearing on an inside wall of said casing with the longitudinal direction of said nozzle body being oriented at an incline with respect to the longitudinal axis of said casing;
• wherein:
• said bearing surface of said nozzle body consists of a friction material having a coefficient of friction that is >0.25 in relation to a material forming said inside wall of said casing;
• a bottom wall of said casing opposite said pot-shaped recess carries a central projection protruding into an interior of said casing, said projection forming an annular space in said casing interior into which an end of said nozzle body opposite said spherical end projects when the nozzle body is supported with its spherical end in said pot-shaped recess;
• and
• the end of said nozzle body that projects into said annular space has a reduced diameter.

A rotor nozzle for a high-pressure cleaning device comprising:

• a casing having in a front wall a pot-shaped recess with a central opening therein;
• a nozzle body with a bore extending therethrough, said nozzle body being supported at a spherical end thereof in said pot-shaped recess and extending along a longitudinal axis thereof over part of the casing and having an outside diameter which is smaller than an inside diameter of the casing;
• and
• inlet means opening tangentially into the casing for causing a liquid introduced thereby to rotate about a longitudinal axis in the casing so that the nozzle body rotates together with the rotating liquid, said nozzle body having a bearing surface at its circumference that bears on an inside wall of the casing with the longitudinal axis of the nozzle body at an incline with respect to the longitudinal axis of the casing;
• and
• at least one brake element protruding radially from said inside wall of said casing, said brake element being arranged in a region of said pot-shaped recess.

A rotor nozzle for a high-pressure cleaning device comprising:

• a casing having a pot-shaped recess in a front wall thereof, said recess surrounding a central opening in said front wall;
• a nozzle body having a bore extending therethrough, said nozzle body being supported at a spherical end thereof in said pot-shaped recess and extending in a longitudinal direction along a portion of said casing, an outside diameter of said nozzle body being smaller than an inside diameter of said casing and having a bearing surface thereon;
• an inlet opening tangentially into said casing, for causing a liquid introduced into said casing therefrom to rotate about a longitudinal axis of the casing, thereby rotating said nozzle body with said bearing surface bearing on an inside wall of said casing with the longitudinal direction of said nozzle body being oriented at an incline with respect to the longitudinal axis of said casing;
• wherein said bearing surface of said nozzle body consists of a friction material having a coefficient of friction that is >0.25 in relation to a material forming said inside wall of said casing, said friction material being provided to counteract all but a very slight rotation of the nozzle body about its own axis which may be caused by rotation of said liquid about said longitudinal axis of the casing.

A rotor nozzle for a high-pressure cleaning device comprising:

• a casing having a pot-shaped recess in a front wall thereof, said recess surrounding a central opening in said front wall;
• a nozzle body having a bore extending therethrough, said nozzle body being supported at a spherical end thereof in said pot-shaped recess and extending in a longitudinal direction along a portion of said casing, an outside diameter of said nozzle body being smaller than an inside diameter of said casing and having a bearing surface thereon;
• an inlet opening tangentially into said casing, for causing a liquid introduced into said casing therefrom to rotate about a longitudinal axis of the casing, thereby rotating said nozzle body with said bearing surface bearing on an inside wall of said casing with the longitudinal direction of said nozzle body being oriented at an incline with respect to the longitudinal axis of said casing;
• a second inlet for introducing said liquid into said casing in parallel with said longitudinal axis of said casing;
• and
• distributor means for selectively providing said liquid to at least one of said inlets at a time;
• wherein said bearing surface of said nozzle body consists of a friction material having a coefficient of friction that is >0.25 in relation to a material forming said inside wall of said casing.

A rotor nozzle for a high-pressure cleaning device comprising:

• a casing having in a front wall a pot-shaped recess with a central opening therein;
• a nozzle body with a bore extending therethrough, said nozzle body being supported at a spherical end thereof in said pot-shaped recess and extending along a longitudinal axis thereof over part of the casing and having an outside diameter which is smaller than an inside diameter of the casing;
• and
• inlet means opening tangentially into the casing for causing a liquid introduced thereby to rotate about a longitudinal axis in the casing so that the nozzle body rotates together with the rotating liquid, said nozzle body having a bearing surface at its circumference that bears on an inside wall of the casing with the longitudinal axis of the nozzle body at an incline with respect to the longitudinal axis of the casing;
• a second inlet for liquid opening into and parallel to the longitudinal axis of said casing;
• and
• distributor means for selectively feeding liquid to one or the other of said inlets or to both inlets simultaneously.

A rotor nozzle for a high-pressure cleaning device comprising:

• a casing having a pot-shaped recess in a front wall thereof, said recess surrounding a central opening in said front wall;
• a nozzle body having a bore extending therethrough, said nozzle body being supported at a spherical end thereof in said pot-shaped recess and extending in a longitudinal direction along a portion of said casing, an outside diameter of said nozzle body being smaller than an inside diameter of said casing and having a bearing surface thereon;
• an inlet opening tangentially into said casing, for causing a liquid introduced into said casing therefrom to rotate about a longitudinal axis of the casing, thereby rotating said nozzle body with said bearing surface bearing on an inside wall of said casing with the longitudinal direction of said nozzle body being oriented at an incline with respect to the longitudinal axis of said casing;
• and
• at least one brake element protruding radially from said inside wall of said casing adjacent said pot-shaped recess;
• wherein said bearing surface of said nozzle body consists of a friction material having a coefficient of friction that is >0.25 in relation to a material forming said inside wall of said casing.

A rotor nozzle for a high-pressure cleaning device comprising:

• a casing having in a front wall a pot-shaped recess with a central opening therein;
• a nozzle body with a bore extending therethrough, said nozzle body being supported at a spherical end thereof in said pot-shaped recess and extending along a longitudinal axis thereof over part of the casing and having an outside diameter which is smaller than an inside diameter of the casing;
• and
• inlet means opening tangentially into the casing for causing a liquid introduced thereby to rotate about a longitudinal axis in the casing so that the nozzle body rotates together with the rotating liquid, said nozzle body having a bearing surface at its circumference that bears on an inside wall of the casing with the longitudinal axis of the nozzle body at an incline with respect to the longitudinal axis of the casing;
• and
• adjustable supporting surfaces in the interior of said casing on which the bearing surface of said nozzle body bears;
• wherein the angle of inclination of said longitudinal axis of said nozzle body in relation to said longitudinal axis of said casing is different at different positions of said supporting surface.

A rotor nozzle for a high-pressure cleaning device comprising:

• a casing having a pot-shaped recess in a front wall thereof, said recess surrounding a central opening in said front wall;
• a nozzle body having a bore extending therethrough, said nozzle body being supported at a spherical end thereof in said pot-shaped recess and extending in a longitudinal direction along a portion of said casing, an outside diameter of said nozzle body being smaller than an inside diameter of said casing and having a bearing surface thereon;
• an inlet opening tangentially into said casing, for causing a liquid introduced into said casing therefrom to rotate about a longitudinal axis of the casing, thereby rotating said nozzle body with said bearing surface bearing on an inside wall of said casing, with the longitudinal direction of said nozzle body being oriented at an incline with respect to the longitudinal axis of said casing, said inside wall comprising an adjustable support and said incline varying with the position of said adjustable support surface;
• wherein said bearing surface of said nozzle body consists of a friction material having a coefficient of friction that is >0.25 in relation to a material forming said inside wall of said casing.