Rotary kinetic fluid motors or pumps – With changing state confined heat exchange mass
Patent
1992-12-30
1994-06-14
Look, Edward K.
Rotary kinetic fluid motors or pumps
With changing state confined heat exchange mass
415115, 415116, 60 3905, 60 3953, F01D 906
Patent
active
053204832
ABSTRACT:
The second-stage nozzles include a plurality of stator vanes 10 having first, second, third, fourth and fifth passages 40, 42, 44, 46 and 48, respectively, for cooling the vanes. The first and fourth passages have a steam inlet along an outer sidewall 14 and a junction box 70 along the inner sidewall 12 for returning steam to the second passage 42. The third passage 44 has a contour corresponding to the contour of the leading edge and impingement steam is directed through openings in a partition 52, cooling the leading edge. Steam flows from the third passage 44 directly into the return passage 42 and also into a channel 64 for cooling the inner sidewall 12. Cooling air flows through fifth passage 48 radially inwardly through the inner sidewall 12 into a cavity 72 in the diaphragm 32 for flow axially outwardly into wheel cavities 86 and 88.
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Chiu R. Paul
Cunha Francisco J.
General Electric Company
Look Edward K.
Verdier Christopher
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