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    • 7. 发明授权
    • Electromagnetic fluid pump
    • 电磁流体泵
    • US4406591A
    • 1983-09-27
    • US225962
    • 1981-01-19
    • Anthony Louis
    • Anthony Louis
    • F04B35/04F04B45/027F04B43/04
    • F04B45/027
    • An electromagnetic fluid pump comprising an electromagnet motor unit for producing a magnetic field of reversing polarity to drive a fluid pump unit to pump fluid such as air. The fluid pump unit comprises a generally cup-shaped pump casing having its open end closed by a flexible diaphragm to define a fluid pumping chamber. A permanent magnet is mounted on the diaphragm, and the pump unit is mounted directly on the electromagnet motor unit with the permanent magnet and the electromagnet motor unit positioned at opposite ends of the fluid pumping chamber. In operation, the reversing magnetic field alternately repels and attracts the permanent magnet to displace the diaphragm to expand and contract the volume of the fluid pumping chamber. Expansion of the fluid pumping chamber draws fluid into the chamber through an inlet port including a one-way valve, and contraction of the fluid pumping chamber expels the fluid from the chamber through an outlet port including a one-way valve. In one alternative embodiment, the pump casing and the motor unit are movably mounted in a pump housing for reciprocating movement toward and away from the reciprocating permanent magnet to increase pump output, whereas in another alternative embodiment two of the fluid pumps are connected back-to-back for relatively vibration-free reciprocation of their permanent magnets in equal and opposite directions.
    • 一种电磁流体泵,包括用于产生反转极性的磁场的电磁体马达单元,以驱动流体泵单元以泵送诸如空气的流体。 流体泵单元包括大致杯状泵壳体,其开口端由柔性隔膜封闭以限定流体泵送室。 永磁体安装在隔膜上,泵单元直接安装在电磁铁马达单元上,永磁体和电磁铁马达单元位于流体泵送室的相对端。 在操作中,反转磁场交替地排斥并吸引永磁体以使隔膜移位,以膨胀和收缩流体泵送室的体积。 流体泵送室的膨胀通过包括单向阀的入口将流体引入室中,并且流体泵送室的收缩通过包括单向阀的出口排出来自腔室的流体。 在一个替代实施例中,泵壳体和马达单元可移动地安装在泵壳体中,用于朝向和远离往复式永磁体往复运动,以增加泵输出,而在另一替代实施例中,两个流体泵连接回 在相同和相反方向上相对无振动的永久磁铁往复运动。