Bell mouth for scroll case
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United States of America Patent
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Nov 12, 2013
Grant Date -
Jan 12, 2012
app pub date -
Jul 28, 2010
filing date -
Jul 9, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bell mouth for a scroll case according to an exemplary embodiment of the present invention is a bell mouth which is provided on the top plate of the scroll case to form an air inlet in order to allow air flow into the scroll case by a centrifugal blower installed inside the scroll case, and the volume of two parts of the bell mouth in respect to a rotation shaft of the centrifugal blower is different from each other. According to the present invention, it is possible to minimize generation of reverse flow of inflow air by increasing or decreasing a variation of the cross-section area of the bell mouth according to an increase in the pressure of the flow rate.
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