SEAL STRUCTURE AND CENTRIFUGAL COMPRESSOR
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United States of America Patent
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Issued Date -
Jun 27, 2013
app pub date -
Sep 9, 2011
filing date -
Sep 9, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Provided is a seal structure (50, 60) configured to seal a clearance (31, 32) with respect to a flow path defined by a rotary body (20) rotated about a central shaft (P) and configured to allow passage of a mainstream, and a stationary body (10) disposed at the rotary body (20) to form the clearance (31, 32), the seal structure including a seal member (51A, 51B) installed at the clearance (31, 32) and configured to divide a fluid introduced from the mainstream into the clearance (31, 32) into a high pressure side and a low pressure side, and a shifting member (52A, 52B) installed at the high pressure side of the fluid in the clearance (31, 32), and configured to allow passage of the fluid and reduce a velocity component in a rotational direction of the rotary body (20) of the velocity component of the fluid.
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