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    • 1. 发明申请
    • ROTARY PUMP WITH RESILIENTLY DEFORMED SEAL
    • 旋转泵具有坚固的变形密封
    • WO2006027548A1
    • 2006-03-16
    • PCT/GB2005/003300
    • 2005-08-25
    • CARBONATE LIMITEDHAYES-PANKHURST, Richard, PaulLACY, Graham, KeithNIGHTINGALE, Christopher, Earl
    • HAYES-PANKHURST, Richard, PaulLACY, Graham, KeithNIGHTINGALE, Christopher, Earl
    • F04C13/00
    • F04C14/26A61M5/14232A61M5/14236B67D1/10F04C2/22F04C2/3566F04C5/00F04C11/001F04C13/00F04C15/0015
    • A pump is formed by a housing (10) having an inlet (11) for connection to a source of fluid and an outlet (12) for pumped fluid. A rotor (15) is rotatable within the housing and the inlet (11) and the outlet (12) are spaced apart around the path of the rotor (15) in the housing. The rotor (15) has surfaces (16a, 16b, 16c, 16d) that form, with the housing (10), closed chambers (18a, 18b, 18c, 18d) which travel around the housing (10) to convey fluid from the inlet (11) to the outlet (12). The housing (10) carries a seal (14) that is located between the inlet (11) and the outlet (12) in the direction of travel of the rotor (15). The seal (14) co-operates with the rotor surfaces (16a, 16b, 16c, 16d) as the surfaces (16a, 16b, 16c, 16d) pass between the outlet (12) and the inlet (11) to prevent the formation of a chamber during said passage and so prevent fluid flow from the outlet (12) to the inlet (11). Such a pump is easily and cheaply produced and is particularly useful in medical applications.
    • 泵由具有用于连接到流体源的入口(11)和用于泵送流体的出口(12)的壳体(10)形成。 转子(15)可在壳体内旋转,并且入口(11)和出口(12)围绕壳体中的转子(15)的路径间隔开。 转子(15)具有与壳体(10)形成封闭腔室(18a,18b,18c,18d)的表面(16a,16b,16c,16d),其围绕壳体(10)移动以将流体从 入口(11)到出口(12)。 壳体(10)沿着转子(15)的行进方向承载位于入口(11)和出口(12)之间的密封件(14)。 随着表面(16a,16b,16c,16d)在出口(12)和入口(11)之间通过,密封件(14)与转子表面(16a,16b,16c,16d)协作,以防止形成 并且因此防止流体从出口(12)流到入口(11)。 这种泵容易且廉价地生产,并且在医疗应用中特别有用。