Variable length compressor rotor pumping vanes
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United States of America Patent
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Sep 1, 2015
Grant Date -
Sep 26, 2013
app pub date -
Mar 22, 2012
filing date -
Mar 22, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A compressor rotor includes a rotor body mounting a disk supporting an array of blades on a radially outer surface of the disk in a primary flow path. A radially inner portion of the disk is formed with an annular array of radially extending vanes adapted to move cooling air flowing in a secondary flow path from a radially-inward direction to an axial direction at a substantially center portion of said disk. Some of said radially-extending vanes have relatively longer radial lengths and some of the radially extending vanes having relatively shorter radial lengths to thereby provide a sufficient flow area while also lessening the formation of vortices along the vanes.
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