Importance

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Abstract

The invention aims to achieve extended service lives in a multipart cleaning nozzle (1) comprising a stator part (2), on which a rotor part (3) can be supported and fixed stationarily, but rotatably about a longitudinal axis (L), by means of a head (4), wherein a brake system comprises a brake drum (20) on the stator part (2) and a plurality of permanent magnets fixed in magnet pockets (301) on the rotor part (3), and wherein the rotational speed of the rotor part (3) due to the effect of the pressure and recoil of a jet ejected from at least one outlet nozzle (310) arranged on the rotor part (3) can be reduced due to an interaction between the brake drum (20) and the plurality of permanent magnets. This is achieved in that the magnet pockets (301) are realized with round cross-sectional areas and arranged in a circumferential surface of a diminished section (30) in two or more circumferential rows such that they are spaced apart from one another in the direction of the longitudinal axis (L), wherein the permanent magnets respectively have round cross-sectional areas and are inserted and fixed in the magnet pockets (301) separately in the direction of the longitudinal axis (L).

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First Claim