INTEGRATED DIFFUSER GRILLE FOR AXIAL FAN
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United States of America Patent
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Issued Date -
Nov 10, 2022
app pub date -
May 6, 2022
filing date -
May 6, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
An integrated diffuser grille for a coil unit includes a hub, a stack diffuser wall, a plurality of radial spokes extending between the hub and the stack diffuser wall, and a plurality of partial spokes extending inwardly from the stack diffuser wall. A radial length of the partial spokes is less than a radial length of the spokes. A plurality of circumferential elements is connected to the plurality of radial spokes between the hub and the stack diffuser wall. At least one circumferential element is connected to the plurality of partial spokes and at least one circumferential element has a non-uniform configuration about a circumference of the plurality of circumferential elements. A cross-section of the plurality of radial spokes has an airfoil-shape and at least one of a spoke pitch angle, camber angle, and chord of the airfoil-shape varies over a radial length of the plurality of spokes.
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