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    • 6. 发明授权
    • Electromagnetic pump
    • 电磁泵
    • US09140245B2
    • 2015-09-22
    • US13413204
    • 2012-03-06
    • Masaya NakaiKazuhiko Kato
    • Masaya NakaiKazuhiko Kato
    • F04B17/04
    • F04B17/042F04B17/04F04B17/044F04B17/048
    • An electromagnetic pump includes a cylinder with a stepped inner diameter with first and second inner diameters. A piston inside the cylinder, with a stepped outer diameter including first and second outer diameters slidable on the respective inner diameters, defines first and second fluid chambers. Reciprocal movement of the piston produces a greater change in volume in the first chamber than the second chamber. An electromagnetic portion moves the piston to decrease the volume of the first chamber and increase the volume of the second chamber. A biasing member moves the piston to increase the volume of the first chamber and decrease the volume of the second chamber. A first valve allows fluid to flow to the first chamber and prohibits reverse flow. A second valve embedded in the piston allows fluid to flow from the first chamber to the second chamber and prohibits reverse flow.
    • 电磁泵包括具有第一和第二内径的阶梯形内径的气缸。 气缸内的活塞具有包括可在相应内径上滑动的第一和第二外径的阶梯形外径,限定第一和第二流体室。 活塞的往复运动在第一室中产生比第二室更大的体积变化。 电磁部分移动活塞以减小第一室的体积并增加第二室的体积。 偏置构件移动活塞以增加第一室的体积并减小第二室的体积。 第一阀允许流体流到第一室并且禁止反向流动。 嵌入在活塞中的第二阀允许流体从第一室流到第二室,并且禁止反向流动。