Rotary kinetic fluid motors or pumps – Including heat insulation or exchange means – Cooling fluid contacts shaft – seal or bearing
Patent
1981-06-24
1983-08-16
Coe, Philip R.
Rotary kinetic fluid motors or pumps
Including heat insulation or exchange means
Cooling fluid contacts shaft, seal or bearing
415177, 415197, 415174, F01D 508
Patent
active
043988660
ABSTRACT:
A cylinder of a gas turbine engine is formed of a multilayered construction including a radially inner ceramic ring, the inner surface of which is juxtaposed to the tips of a turbine rotor, an intermediate arrangement of two annular ceramic rings that are substantially L-shaped in cross-section and are disposed in mirror image so as to entrap the radially inner ceramic ring, and a radially outer metallic support means which envelopes the intermediate ceramic rings for maintaining the composite ceramic structure during different operating modes of the turbine engine. The composite ceramic portion of the cylinder enables the engine to operate at higher temperatures, and offers the potential for improved turbine tip clearance control, since the ceramic material is less sensitive to thermal distortion.
REFERENCES:
patent: 2576860 (1951-11-01), Shaprio
patent: 3589475 (1971-06-01), Alford
patent: 3601414 (1971-08-01), Rao
patent: 3825365 (1974-07-01), Peng
patent: 3947145 (1976-03-01), Michel et al.
patent: 4008978 (1977-02-01), Smale
patent: 4087199 (1978-05-01), Hemsworth et al.
patent: 4207024 (1980-06-01), Bill et al.
Hartel Edward O.
Libertini Zoltan L.
Manente, Jr. Joseph C.
Wilson Donald E.
Avco Corporation
Coe Philip R.
Gelling Ralph D.
Stinson Frankie L.
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