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    • 10. 发明授权
    • Pump casing for sheet metal pump
    • 钣金泵泵壳
    • US06200090B1
    • 2001-03-13
    • US09289587
    • 1999-04-12
    • Huan-Jan ChienKuo-Yu TangMing-Chuan ShihCharlie Pen
    • Huan-Jan ChienKuo-Yu TangMing-Chuan ShihCharlie Pen
    • F04D2944
    • F04D29/4266F04D29/445Y10S415/915
    • An pump casing for a sheet metal pump includes a pump body made by pressing or roll forming a sheet metal, a reinforced member which includes a water guide unit and a flange unit separately made by casting or CNC machining and a seal ring engaged with the water guide unit. The pump body is a simple basin shape which can be produced with less stress concentration. The water guide unit may be made with a more precise volute for achieving better pumping efficiency. The reinforced member may increase structural strength of the pump casing for withstanding greater pumping pressure and external forces. The seal ring may be positioned precisely without dislocation because it engages with the water guide unit rather than the pump casing. The gap between the seal ring and the impeller may be kept small and constant, thus obtaining better pumping efficiency, lower operation noise and greater durability.
    • 用于钣金泵的泵壳体包括通过冲压或成形钣金制成的泵体,包括导水单元和通过铸造或CNC加工分别制造的凸缘单元的加强构件和与水接合的密封环 指导单位 泵体是一种简单的盆形,可以以较少的应力集中产生。 导水单元可以用更精确的蜗壳制成,以实现更好的泵送效率。 加强构件可以增加泵壳的结构强度,以承受更大的泵送压力和外力。 密封环可以精确地定位而不脱位,因为它与导水单元而不是泵壳接合。 密封环和叶轮之间的间隙可以保持较小且恒定,从而获得更好的泵送效率,更低的操作噪音和更大的耐久性。