BLOWER
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Jan 30, 2025
app pub date -
Oct 14, 2024
filing date -
Oct 14, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
A blower includes a shaft and a centrifugal fan. The centrifugal fan includes a plurality of blades, a shroud and a main plate. Each of the plurality of blades has a leading edge and a trailing edge. At each blade, a negative pressure surface of an air inlet section of the blade, which is closer to the leading edge than the trailing edge, has a projection that projects toward a positive pressure surface of an adjacent one of the plurality of blades. At least a portion of the positive pressure surface of the air inlet section is inclined toward a forward side in a rotational direction of the centrifugal fan to progressively extend toward the forward side in the rotational direction as the portion of the positive pressure surface of the air inlet section extends toward the main plate.
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