| 摘要 |
A rotary nozzle for a high pressure cleaning apparatus has a liquid driven rotor inclined to the axis of the rotor housing in which it is received and an O-ring engaging an annular region of the housing to drive the rotor so that it orbits the axis of the housing since either the drive ring or the annular region engaged thereby of the housing for elastically deformable, the speed of the rotor is reduced by deformation work.
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