Fixed blade assembly usable in exhaust pump, and exhaust pump provided with same
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United States of America Patent
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Jan 30, 2018
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N/A
app pub date -
Sep 13, 2011
filing date -
Dec 14, 2010
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Abstract
Provided are a stator blade assembly advantageous for improving the evacuation performance by shortening the evacuation time, and an exhaust pump provided with such a stator blade assembly. Inner and outer stator blade bases of a plurality of stator blades are supported by frames. A projecting portion protruding from the frame supporting the inner stator blade base, or from the frame supporting the outer stator blade base, or from both of the frames is provided in a gap in the vicinity of the inner or outer stator blade base between one of the supported stator blades and the stator blade transversely adjacent thereto.
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