Recirculation structure for a turbocompressor
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United States of America Patent
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Mar 6, 2007
Grant Date -
Jan 27, 2005
app pub date -
Aug 21, 2003
filing date -
Aug 23, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A recirculation structure for turbo-compressors has an annular chamber that is positioned in the area of the free blade ends of a rotating blade ring and that radially borders the main flow channel, and has a multitude of guide vanes arranged in the annular chamber and distributed around its circumference. The annular chamber enables the passage of air flow in the forward and/or rear areas, and the guide vanes are firmly fixed to at least one wall of the annular chamber and otherwise are designed to be free-standing. The tips of the guide vanes that face the annular chamber extend along and/or near the contour of the main flow channel, and axially overlap the free blade ends or axially border the area of the free blade ends.
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