Transition-to-turbine seal apparatus and kit for transition/turbine junction of a gas turbine engine

One embodiment of a transition-to-turbine seal ( 300 ) comprises a transition exit seal ( 302 ) adapted for fixed attachment to an exit rail ( 116 ) of a transition ( 109 ), and a stage-1 seal ( 340 ). The stage-1 seal ( 340 ) comprises an axial seal slot ( 348 ) comprising parallel walls ( 346, 347...

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Bibliographische Detailangaben
Hauptverfasser:	HSU JOHAN, ZBOROVSKY JAMES M, MCQUIGGAN ANDREW G
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES CYLINDERS ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS 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 PISTONS SEALINGS STEAM ENGINES THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	One embodiment of a transition-to-turbine seal ( 300 ) comprises a transition exit seal ( 302 ) adapted for fixed attachment to an exit rail ( 116 ) of a transition ( 109 ), and a stage-1 seal ( 340 ). The stage-1 seal ( 340 ) comprises an axial seal slot ( 348 ) comprising parallel walls ( 346, 347 ) adapted to slidingly engage a first male member ( 310 ) of the transition exit seal ( 302 ). The stage-1 seal ( 340 ) also comprises a radial seal slot ( 354 ) comprising parallel walls ( 351, 353 ) adapted to slidingly engage a plate ( 338 ) of a row 1 vane segment ( 330 ). The transition-to-turbine seal ( 300 ) thus provides both axial and radial freedom of movement. Materials and coatings for the transition exit seal ( 302 ) and the stage-1 seal ( 340 ) are selected to promote preferential wear of these components relative to wear of the surface of the row 1 vane segment ( 330 ). Wear of the exit rail ( 116 ) is reduced or eliminated due to the noted fixed attachment.