Spiral fluted wheel for a water pump

摘要

A spiral fluted wheel for a water pump is composed of a first plate (10), a second plate (20) corresponding to the first plate (10), and a plurality of spiral impellers (30) sandwiched between the first plate (10) and the second plate (20). Each spiral impeller (30) has planned complementary flanges so as to combine with adjacent spiral impellers (30) easily and precisely.