Power plants – Combustion products used as motive fluid – For nominal other than power plant output feature
Reexamination Certificate
2005-08-02
2005-08-02
Kim, Ted (Department: 3746)
Power plants
Combustion products used as motive fluid
For nominal other than power plant output feature
C060S806000, C415S115000, C415S174500
Reexamination Certificate
active
06923005
ABSTRACT:
A system to feed cooling air to a gas turbine, wherein the cooling air is taken from a high-pressure source, inside the gas turgine, and is conveyed to radial accelerators (129, which give rise to the tangential acceleration of the air in the direction of the peripheral motion of the rotor surface. After it has been accelerated to the peripheral sepped of the rotor, the cooling air enters radial holes (13), and, whilst passing radially through the radial holes (13), undergoes a reduction in the quantity of tangential motion, Subsequently, the cooling air is released into the hollow rotor, with a correspondingly reduced outlet radius (14). A series of labyrinth seals combined with brush seals separate the chamber for combined with brush seals separate the chamber for feeding of air to the radial holes (13), from the low-pressure environment around the pad #2(15) of the said gas turbine.
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patent: 4541774 (1985-09-01), Rieck et al.
patent: 4674955 (1987-06-01), Howe et al.
patent: 5555721 (1996-09-01), Bourneuf et al.
patent: 5586860 (1996-12-01), Bertrand et al.
patent: 6540477 (2003-04-01), Glynn et al.
Kim Ted
Nixon & Vanderhye
Nuovo Pignone Holding S.p.A.
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