Super low noise fan blades, axial flow fans incorporating the same, and commercial air cooled apparatuses incorporating such axial flow fans
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United States of America Patent
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Oct 7, 2014
Grant Date -
Oct 6, 2011
app pub date -
Apr 5, 2011
filing date -
Apr 5, 2010
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Abstract
Large diameter axial Super Low Noise flow fans and commercial air cooled apparatuses incorporating such fans are provided. The large diameter axial flow fan is mounted on the air cooled apparatus for generating an axial air flow in the air cooled apparatus for accomplishing the cooling. The fan has a diameter of at least four feet. The fan has plurality of blades. Each blade includes a leading edge opposite a trailing edge. The entire of the leading edge of each of the blades is linear and forward swept, and each blade includes a metallic outer surface.
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