Centrifugal blower with eddy blade
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United States of America Patent
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Nov 16, 2004
Grant Date -
Apr 15, 2004
app pub date -
Dec 2, 2002
filing date -
Oct 9, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A centrifugal blower with an eddy blade is disclosed. The centrifugal blower includes a multiblade impeller with a plurality of blades, and a scroll casing surrounding the multiblade impeller, with a spiral passage defined between the scroll casing and the impeller to guide air radially accelerated in the impeller to an air outlet port of the scroll casing, thus discharging the air from the scroll casing through the air outlet port. The eddy blade is installed in the spiral passage at a position around the air outlet port to generate a uniform current velocity distribution of air, thus preventing generation of an eddy at variance with a main current in a stream of air.
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