Fluid movement system and method for determining impeller blade angles for use therewith
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United States of America Patent
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Oct 20, 2015
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May 16, 2013
app pub date -
Nov 14, 2012
filing date -
Nov 14, 2011
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Abstract
A fluid movement system that includes an impeller having a blade with a leading edge blade tip angle determined as a function of an increase in mass flow rate due to reinjection of flow from a flow stability device located proximate to the leading edge tip of the blade. In an exemplary method, the leading edge blade tip angle can be determined based on selecting a blade incidence level based on a mass flow gain versus flow coefficient curve. Blade leading edge tip angles determined in accordance with a method of the present invention are typically greater than blade leading edge tip angles determined using traditional methods. The greater blade leading edge tip angles can lead to more robust blades designs.
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