| 摘要 |
PURPOSE: A hybrid pump is provided to prevent a fluid form a vortex in the inside of an inlet without forming a separate key because a screw type impeller and plate type impeller are rotated toward directions opposite to each other. CONSTITUTION: A hybrid pump comprises a screw type impeller(120) and a plate type impeller(130). The screw type impeller is placed in an inlet(111) side of a pump casing(110) and makes a fluid flow to the inside of the casing. The plate type impeller makes the fluid flowing into the inside of the casing by the screw type impeller to an outlet(112) of the casing. The plate type impeller is rotated toward a direction opposite to the screw type impeller.
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