Vane carrier thermal management arrangement and method for clearance control

A thermal management arrangement (110) in a gas turbine engine (60), including: a conduit arrangement (62) providing fluid communication between a compressor section (156) and: a relatively thermally responsive portion (52) of a turbine vane carrier (10); and a relatively thermally unresponsive port...

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Bibliographische Detailangaben
Hauptverfasser: TERPOS BRIAN H, LEE CHING-PANG, THAM KOK-MUN, SIMKO DUSTAN M
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A thermal management arrangement (110) in a gas turbine engine (60), including: a conduit arrangement (62) providing fluid communication between a compressor section (156) and: a relatively thermally responsive portion (52) of a turbine vane carrier (10); and a relatively thermally unresponsive portion (48) of a turbine vane carrier. The conduit arrangement includes: a general cooling flow outlet (122) disposed proximate the relatively thermally responsive portion of the turbine vane carrier and configured to discharge a general cooling flow (124); and an impingement flow outlet (118) disposed proximate the relatively thermally unresponsive portion and configured to discharge an impingement flow (120). The thermal management arrangement is configured such that a flow rate of the impingement flow is effective to accelerate a thermal response of the relatively thermally unresponsive portion toward a thermal response of the relatively thermally responsive portion.