Patent ID: 7552878

Claim:
A rotor nozzle, in particular for high pressure cleaning devices, having a nozzle housing ( 11 ) which has a swirl chamber ( 17 ) between an inflow opening ( 13 ) for a fluid, in particular water, and a discharge opening ( 15 ), with a rotor ( 21 ) inclined with respect to a longitudinal axis ( 19 ) during operation being supported at its front end at a bearing ( 23 ), in particular at a cup-shaped bearing, in said swirl chamber and with the rotor being able to be driven to make a rotating movement around the longitudinal axis ( 19 ) by fluid flowing into the swirl chamber ( 17 ), characterized in that an adjustment device ( 25 ) is positioned in front of the swirl chamber ( 17 ) for the speed regulation of the rotor ( 21 ) and forces the inflowing fluid to make a rotating movement around the longitudinal axis ( 19 ) for the generation of a rotating fluid field before the transition into the swirl chamber ( 17 ); and in that the rotating fluid field is disrupted more or less pronouncedly on the transition into the swirl chamber ( 17 ) in dependence on the position of the adjustment device ( 25 ); wherein the adjustment device is configured as a stopper ( 25 ) which can be screwed into the nozzle housing ( 11 ), to which a fluid supply line can be connected and which has an inflow space ( 35 ) into which the supplied fluid first moves and from which the fluid then moves via a drive bore ( 37 ), in particular a drive bore oriented radially or tangentially to the longitudinal axis, into a ring passage ( 33 ) for the generation of the rotating fluid field.