Rotary kinetic fluid motors or pumps – With passage in blade – vane – shaft or rotary distributor...
Reexamination Certificate
2006-03-07
2006-03-07
Look, Edward K. (Department: 3745)
Rotary kinetic fluid motors or pumps
With passage in blade, vane, shaft or rotary distributor...
C415S208200, C416S09600A
Reexamination Certificate
active
07008178
ABSTRACT:
A turbine nozzle includes outer and inner bands integrally joined to a doublet of hollow vanes extending radially therebetween. Each of the vanes includes opposite pressure and suction sidewalls extending between opposite leading and trailing edges, and spaced apart to define an internal plenum extending radially between the bands for receiving an air coolant. The vanes are spaced apart from each other to define a flow passage for channeling hot combustion gases which are bound by corresponding pressure and suction sidewalls of the vanes facing inboard toward each other, with the remaining suction and pressure sidewalls of the vanes facing outboard. The vanes include different cooling configurations to bias more of the coolant to the inboard sidewalls than to the outboard sidewalls.
REFERENCES:
patent: 6077036 (2000-06-01), Heffron et al.
patent: 6183192 (2001-02-01), Tressler et al.
patent: 6485590 (2002-11-01), Ivkovich et al.
patent: 6609880 (2003-08-01), Powis et al.
patent: 6783323 (2004-08-01), Shiozaki et al.
patent: 2003/0113201 (2003-06-01), Powis et al.
Busch Duane Allan
Powis Andrew Charles
Starkweather Melissa Wise
Andes William S.
Conte Francis L.
Edgar Richard A.
General Electric Company
Look Edward K.
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