Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means
Patent
1996-11-29
1998-04-07
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
415177, F01D 508
Patent
active
057356718
ABSTRACT:
A turbine rotor includes a rotor disk having a plurality of dovetail slots defining therebetween respective disk posts. Each post has a top land and a plurality of tangs spaced radially therebelow inside adjacent ones of the slots. A plurality of turbine blades each having a dovetail are mounted in respective ones of the dovetail slots for radially retaining the blades. A platform is joined integrally with the dovetail and extends circumferentially to adjoin adjacent ones of the platforms to define a radially inner flowpath. An airfoil extends integrally from the platform for extracting energy from combustion gases flowable thereover. A thermal barrier coating is fixedly bonded to each of the disk post top lands for providing thermal insulation between the platforms and the disk posts for reducing disk post temperature.
REFERENCES:
patent: 3897171 (1975-07-01), Stahl
patent: 4277222 (1981-07-01), Barbeau
patent: 4279575 (1981-07-01), Avery
patent: 4762462 (1988-08-01), Lardellier
patent: 5030060 (1991-07-01), Liang
patent: 5127795 (1992-07-01), Plemmons et al.
patent: 5320909 (1994-06-01), Scharman et al.
Albers Robert J.
Brauer John C.
Brill Edward P.
Di Salle David A.
Lenahan Dean T.
General Electric Company
Hess Andrew C.
Kwon John T.
Scanlon Patrick R.
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