Rotary kinetic fluid motors or pumps – With passage in blade – vane – shaft or rotary distributor...
Patent
1967-12-19
1976-06-15
Feinberg, Samuel
Rotary kinetic fluid motors or pumps
With passage in blade, vane, shaft or rotary distributor...
415116, 416 90R, F01D 514
Patent
active
039633683
ABSTRACT:
A cooling arrangement for high temperature turbines, particularly the first stage nozzles of gas turbine engines. Cooling is effected by compressor discharge air taken from the combustion chamber jacket of the engine. The shrouds of the nozzle have a base ring and a porous facing spaced from the base ring and exposed to the motive fluid. Cooling air fed through openings in the base ring flows through the porous facing into the motive fluid path to cool the facing by transpiration. The vanes are cooled by an arrangement providing for a mixture of impingement and transpiration cooling. Compressor discharge air is admitted between a baffle in the interior of the hollow vane and the high pressure face of the vane. Some of the air flows through the porous high pressure face for transpiration cooling. The rest of the air is discharged through a row of openings in the baffle to impinge on and cool the interior of the leading edge of the vane, which is imperforate. This air then circulates rearwardly of the vane and exhausts through the porous low pressure face of the blade.
REFERENCES:
patent: 2743579 (1956-05-01), Gaubatz
patent: 2879028 (1959-03-01), Stalker
patent: 2956773 (1960-10-01), French
patent: 2997275 (1961-08-01), Bean et al.
patent: 3088281 (1963-05-01), Soltau et al.
patent: 3246469 (1966-04-01), Moore
patent: 3301527 (1967-01-01), Kercher
Feinberg Samuel
Fitzpatrick Paul
General Motors Corporation
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