Gas turbine engine with a labyrinth seal having canted pockets and knife edges

A gas turbine engine (10) is provided with turbine sealing structures including knife edge seals (104) which extend at an angle relative to an axial center line (12) of the engine (10). Each knife edge seal (104) is associated with a pocket (114) defined between a radially inner surface and a spaced...

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Bibliographische Detailangaben
Hauptverfasser:	PAOLILLO, ROGER E, MCCUSKER, KEVIN N, WU, CHARLES C, PALMITER, PAGE RUSSELL
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 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:	A gas turbine engine (10) is provided with turbine sealing structures including knife edge seals (104) which extend at an angle relative to an axial center line (12) of the engine (10). Each knife edge seal (104) is associated with a pocket (114) defined between a radially inner surface and a spaced radially outer surface. The pockets (114) and their associated knife edge seals (104) create a difficult flow path (X) to prevent leakage into radially inner portions of the turbine section (20, 22).