WHEEL SPACE PURGE FLOW MIXING CHAMBER

Cooling air extracted from a gas turbine engine compressor is sent to nozzle vane cooling passage inlets 204, through the cooling passages 206, and to purge tubes 210 of a set of two or more vanes. A mixing chamber 214 formed between the purge tubes 210 in a diaphragm cavity receives fluid from the...

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Bibliographic Details
Main Authors BERRY, Michael Robert, MERRILL, Mitchell Allan, ALBERT, Jason Edward, SCOFFONE, Matthew Peter
Format Patent
LanguageEnglish
French
German
Published 28.06.2017
Subjects
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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Summary:Cooling air extracted from a gas turbine engine compressor is sent to nozzle vane cooling passage inlets 204, through the cooling passages 206, and to purge tubes 210 of a set of two or more vanes. A mixing chamber 214 formed between the purge tubes 210 in a diaphragm cavity receives fluid from the purge tubes 210 and directs it through exit passage(s) 216 formed through a wall of the mixing chamber 214 to a surface of the diaphragm 194. The exit passage(s) 216 can be inclined to induce a fluid velocity component substantially parallel to the surface and/or in a rotation direction of a turbine wheel.
Bibliography:Application Number: EP20160194759