Fluid Flow Machine
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United States of America Patent
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Issued Date -
Feb 17, 2011
app pub date -
Jul 22, 2010
filing date -
Aug 13, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A fluid flow machine has a stator, a rotor which is supported so as to be rotatable relative to the stator, and a brush seal which seals a gap formed between the stator and rotor in a radial direction to prevent the passage of fluid. The brush seal has a brush holder and a plurality of sealing bristles, each of which has a first end that is fastened to the brush holder and a second end that contacts a sealing surface. The sealing surface is rotationally displaceable relative to the second ends of the respective sealing bristles. The sealing surface is formed by a circumferential surface of an intermediate sleeve which is arranged between the stator and rotor and which radially divides the gap.
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