| 摘要 |
23724-178 Nozzle head with a nozzle carrier that is rotatable about an axis and can be actuated : 1. A nozzle head with a nozzle carrier that is rotatable about an axis and can be actuated. 2.1 Tools with rotating spray nozzles on which highpressure power water acts are used to clean surfaces as well as remove surface coatings. Up to now the nozzles have sprayed during the entire 360.degree. rotation. Due to the feed of the tool, wellworn areas result in the feed direction to the left and right of the straight tangents. The present invention is based on the object of using the energy expended in the well-worn areas in order to increase the feed. 2.2 The nozzle head comprises a stationary sleeve (10) through which the high-pressure water is fed and which extends up to the area of a nozzle carrier (12). Its free face end (15) is closed. At least one transverse hole (16) is provided adjacent this face end (15), the channels (19, 20, 21, 22) arranged in the 23724-178 nozzle carrier and leading to the spray nozzles (18) being supplied from this transverse hole with pressure water. 2.3 The nozzle head is used to hydrodynamically clean horizontal or vertical surfaces.
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