IMPELLER STRUCTURE FOR A WATER PUMP ROTOR AND A WATER PUMP USING SAME
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United States of America
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Issued Date -
Apr 10, 2025
app pub date -
Oct 5, 2023
filing date -
Oct 5, 2023
priority date (Note) -
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Abstract
An impeller and a water pump using same are disclosed. The impeller is mounted in a volute casing of the water pump and includes a base and a top cover, and a plurality of vanes provided therebetween. At least one of the top cover and the base is provided on an outer side surface thereof with a fluid-impeding flange to increase flow resistance in a cavity in the volute casing below the impeller, such that less fluid flows into the cavity below the impeller and the impeller in rotating would not be lifted by an upward force of buoyancy of the fluid, preventing the impeller top cover from impacting and rubbing against an inner side surface of the volute casing and largely reducing the frictional resistance and power consumption of the impeller. Therefore, the impeller produces less noise and enables upgraded operating efficiency, increased flow and prolonged service life.
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