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发明专利
JP2021173185A 羽根車、水力機械 审中-公开

羽根車、水力機械
摘要：
【課題】可動翼の摺動抵抗の増加を抑えつつ、可動翼の摺動部における異物の噛み込みを防止できる羽根車、水力機械の提供。 【解決手段】羽根車1は、回転軸4を有する可動翼2と、可動翼2が回転軸4を介して接続される接続孔3aを有するハブ3と、可動翼2とハブ3との隙間Sを囲うと共に、回転軸4と接続孔3aとの隙間を囲う弾性カバー10と、を備える。 【選択図】図2
摘要（英）：

To provide an impeller that can prevent a slide part of a movable vane from biting a foreign matter while suppressing an increase in slide resistance of the movable vane, and to provide a hydraulic machine.SOLUTION: An impeller 1 includes: a movable vane 2 including a rotational shaft 4; a hub 3 including a connection hole 3a to which the movable vane 2 is connected via the rotational shaft 4; and an elastic cover 10 for surrounding a space S between the movable vane 2 and the hub 3 and surrounding a space between the rotational shaft 4 and the connection hole 3a.SELECTED DRAWING: Figure 2

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