Triple circuit turbine cooling

A turbofan engine (10) includes in serial flow communication a first fan (12), second fan (14), multistage compressor (16), combustor (20), first turbine (26), second turbine (30), and third turbine (34). The first turbine (26) is joined to the compressor by a first shaft (28). The second turbine (3...

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Bibliographische Detailangaben
Hauptverfasser:	KRAMMER, ERICH ALOIS, MACLIN, HARVEY MICHAEL, LEE, CHING-PANG, HAUBERT, RICHARD CLAY
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS CYLINDERS ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS GAS-TURBINE PLANTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PISTONS SEALINGS STEAM ENGINES THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A turbofan engine (10) includes in serial flow communication a first fan (12), second fan (14), multistage compressor (16), combustor (20), first turbine (26), second turbine (30), and third turbine (34). The first turbine (26) is joined to the compressor by a first shaft (28). The second turbine (30) is joined to the second fan (14) by a second shaft (32). And, the third turbine (34) is joined to the first fan (12) by a third shaft (36). First, second, and third cooling circuits (40,42,44) are joined to different stages of the compressor (16) for cooling the forward and aft sides and center bore of the first turbine (26) with different pressure air.