Single suction centrifugal blower
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United States of America Patent
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-
Dec 26, 2023
Grant Date -
Aug 5, 2021
app pub date -
Apr 23, 2021
filing date -
Nov 19, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
In a cross section of a flow passage formed to conduct a flow of air from an inside/outside air box to an upper air passage of a scroll casing while the cross section of the flow passage is taken along an imaginary plane which includes an outer edge of an air guide plate and is parallel to a rotational axis of an impeller, a passage section, which is located on one radial side of a separation tube where a nose of the scroll casing is placed, is defined as a first opening section, and another passage section, which is located on an opposite radial side of the separation tube, which is opposite to the nose, is defined as a second opening section. A passage cross-sectional area of the second opening section is larger than a passage cross-sectional area of the first opening section.
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