Fluid flow machine
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United States of America Patent
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Feb 26, 2013
Grant Date -
Feb 11, 2010
app pub date -
Aug 3, 2009
filing date -
Aug 8, 2008
priority date (Note) -
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Abstract
A fluid flow machine has a main flow path 2 which is confined by a hub 3 and a casing 1 and in which at least one row of blades 5 is arranged. A gap 11 is provided on at least one blade row 5 between a blade end and a main flow path confinement, with the blade end and the main flow path confinement performing a rotary movement relative to each other. At least one reversing duct 7 is provided in the area of the blade leading edge in the main flow path confinement at a discrete circumferential position. The reversing duct 7 connects two openings 12, 13 arranged on the main flow path confinement.
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