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    • 2. 发明专利
    • Impeller for water pump
    • 水泵用叶轮
    • JP2003003991A
    • 2003-01-08
    • JP2002104562
    • 2002-04-05
    • Honda Motor Co LtdYamada Seisakusho Co Ltd本田技研工業株式会社株式会社山田製作所
    • IJIMA TOSHIROADACHI RYOHEISO HIMARUYAMA SATOSHI
    • F04D29/22
    • F04D29/2227F05D2300/10F05D2300/43
    • PROBLEM TO BE SOLVED: To secure a sufficient wall thickness in the rotation center part of an impeller main body side, and to very firmly attach a metal boss onto an impeller main body, in an impeller with the metal boss attached to the rotation center part of the impeller main body in an inserted condition. SOLUTION: This impeller comprises an impeller main body A made of a synthetic resin with the blade part 2 formed in a periphery of the rotation center part 1, and the metal boss B wherein a circumferential boss part 3 positioned in a surface side of the rotation center part 1 and provided with a contraction-shaped part 3a in a shaft end part portion is connected to a shaft periphery supporting boss part 4 positioned in a reverse face side of the rotation center part 1, continuously along an axial direction, and wherein an axis- directional support face 5 is formed between the circumferential boss part 3 and the supporting boss part 4. The metal boss B is insertion-attached to the rotation center part 1.
    • 要解决的问题:为了确保叶轮主体侧的旋转中心部分的足够的壁厚,并且在叶轮中非常牢固地将金属凸起附接到叶轮主体上,其中金属凸台附接到旋转中心部分 的叶轮主体处于插入状态。 解决方案:该叶轮包括由合成树脂制成的叶轮主体A,叶片部分2形成在旋转中心部分1的周围,金属凸台B的周向凸台部分3位于旋转中心部分1的表面侧 中心部1并且在轴端部具有收缩部3a连接到位于旋转中心部1的反面侧的轴外周支撑凸台部4,轴向连续地沿轴向连接, 轴向支撑面5形成在周向凸起部3和支撑凸台部4之间。金属凸台B插入附接到旋转中心部1。