| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic unit capable of preventing increase of the flow resistance of a fluid by supporting poles of a filter unit as much as possible. SOLUTION: A cylindrical flow route forming body 7 in which a fluid flow route 13 is opened in the radial direction. A circular filter apparatus 14 for filtering a fluid flowing out of the fluid flow route 13 is so formed as to surround the flow route forming body 7. The filter apparatus 14 comprises a plurality of supporting poles 15 arranged in the circumferential direction and filters 16 extended between neighboring supporting poles 15. The cross-section shape of each supporting pole 15 is gradually sharpened toward the outer circumferential side of the filter apparatus 14 in the outer circumferential side than the filter 16.
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