| 摘要 |
PURPOSE: A fluid pump is provided to simplify a structure using coil and a permanent magnet and to enhance the energy efficiency. CONSTITUTION: A fluid pump(1) comprises a cylinder(10), a coil unit(20), a plunger(30), and a control valve(40). The cylinder comprises a supply hole(100) and a discharge hole(120) and has an internal space. The coil unit is installed on the outer circumference of the cylinder. The plunger is arranged on the inner surface of the cylinder to be able to linearly move and interacts with the coil unit. A flow path(300) is formed at the center of the plunger. The control valve is installed on one side of the plunger and if the plunger goes forth, the control valve closes the flow path and if the plunger goes back, the control valve opens the flow path.
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