| 摘要 |
A fluid drive assembly for a rotary brush. A fluid inlet and a nozzle are included for dispensing fluid. A waterwheel is mounted for rotation about an axis. A rotary brush rotating means is rotatably driven by the waterwheel. The waterwheel has a series of vanes peripherally disposed around the waterwheel. Each vane has a wall for receiving the dispensed fluid having a pair of unrestricted ends spaced apart in a direction transverse to the direction of rotation and a fluid diverter separates the unrestricted ends diverting the fluid striking the walls simultaneously toward the unrestricted ends.
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