| 摘要 |
A hydrobrush of the type incorporating a small Pelton turbine actuated by a water jet at the pressure of the water main and which causes the rotation of a brush. The impeller (4) of said turbine is provided with a co-axial small toothed wheel (504) which is in mesh with two or more toothed wheels or satellites (5) of larger diameter, which in turn are in mesh with a crown gear (303) which surrounds them and is secured to the body (3) of said hydrobrush.
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