Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1994-07-14
1996-04-16
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
416 97R, 416198A, F01D 508
Patent
active
055076203
ABSTRACT:
The gas turbine has a bladed rotor welded together from a plurality of disks. Hollow spaces are present between the disks and axial passages are present in the periphery of the rotor between the rotor surface and platforms formed by the rotor blades and segmental heat barrier plates. In accordance with the invention, these axial passages are fed with cooling air from at least one hollow space between two rotor disks. The at least one hollow space is in connection with the axial passages mentioned, preferably by of connecting openings. It is fed from a central cooling air supply passage starting from the downstream end of the rotor. The cooling air is preferably tapped from the cycle air at the central part of the compressor so that low-pressure cooling occurs.
REFERENCES:
patent: 2656147 (1953-10-01), Brownhill et al.
patent: 2810544 (1957-10-01), Schorner
patent: 2858103 (1958-10-01), Waugh
patent: 3742706 (1973-07-01), Klompas
patent: 3751909 (1973-08-01), Kohler
patent: 4447188 (1984-05-01), Davis et al.
Primoschitz Eduard
Rihak Pavel
ABB Management AG
Larson James A.
Look Edward K.
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