US Patent 10036392 Axial fan for industrial use
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Patent abstract
An axial fan comprises a hub and a plurality of blades extending from the hub; wherein each blade comprises a main blade portion and a secondary blade portion and the secondary blade portion has a leading edge adjacent to a leading edge of the main blade portion and forms a flap for the main blade portion; wherein a fluid passage is defined between the leading edge of the main blade portion and the leading edge of the secondary blade portion; wherein the main blade portion has a main chord and the secondary blade portion has a secondary chord; and wherein the main chord and the secondary chord form a relative attack angle comprised between 5° and 35°.
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Patent Inventor Names
Carlo Gallina0
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Patent Number
100363920
Date of Patent
July 31, 2018
0Patent Application Number
148905770
Date Filed
May 12, 2014
0Patent Citations Received
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US Patent 10036392 Axial fan for industrial use
Infobox
Is a
Patent jurisdiction
Patent number
10036392
Date of patent
July 31, 2018
Patent application number
14890577
Date Filed
May 12, 2014
Patent primary examiner
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