Fluid flow machine with blade row-internal fluid return arrangement
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United States of America Patent
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Oct 25, 2011
Grant Date -
Oct 22, 2009
app pub date -
Apr 17, 2009
filing date -
Apr 18, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A fluid flow machine has a flow path (2) which is confined by at least one wall, on which at least one row of blades (6, 7) is fixedly mounted. At least one fluid offtake opening (9) and at least one fluid supply opening (10), which are connected by at least one fluid return path (11), are arranged in the wall in an area of a blade row (6, 7), with a circumferential extension of the fluid supply opening (10) being less than a distance between two adjacent blades.
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