| 摘要 |
PROBLEM TO BE SOLVED: To obtain a filter device with a high cleaning effect of a filter. SOLUTION: This filter device comprises a vertical cylindrical filter 32 rotatably supported around a vertical axis, cleaning liquid nozzles 91, 93 directed to a filter outer face from the same direction as the filter radial direction, and a rotating liquid nozzle 92 directed to the filter outer face from a direction different from the filter radial direction. The filter 32 is rotated by pressure of a liquid emitted from a rotating liquid nozzle 92. COPYRIGHT: (C)2008,JPO&INPIT
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