WHEEL SPACE PURGE FLOW MIXING CHAMBER

WHEEL SPACE PURGE FLOW MIXING CHAMBER

Cooling air extracted from a gas turbine engine compressor is sent to a nozzle vane cooling passage inlet 204, through the cooling passage 206, and to a purge tube of the vane. A mixing chamber 214 formed in a diaphragm 194 cavity receives fluid from the purge tube 210 and directs it through exit pa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BERRY, Michael Robert, MERRILL, Mitchell Allan, ALBERT, Jason Edward, SCOFFONE, Matthew Peter
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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Beschreibung
Zusammenfassung:Cooling air extracted from a gas turbine engine compressor is sent to a nozzle vane cooling passage inlet 204, through the cooling passage 206, and to a purge tube of the vane. A mixing chamber 214 formed in a diaphragm 194 cavity receives fluid from the purge tube 210 and directs it through exit passage(s) 216 formed through a side wall 228, 230 of the mixing chamber 214 and/or diaphragm 194 cavity to a diametral surface 196 of the diaphragm 194. The exit passage(s) 216 can be inclined to induce a fluid velocity component substantially parallel to the diametral surface 196 and/or in a rotation direction of a turbine wheel adj acent the diaphragm 194.