GAS TURBINE SEALING

A gas turbine having a seal sealing a trench cavity defined between a stator inboard face and rotor inboard face. The seal may include a stator overhang that extends axially toward the rotor inboard face. The stator overhang may include an overhang topside, an overhang underside, and an overhang fac...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Chengappa Manjunath Bangalore, Bhaumik Soumyik Kumar, Chouhan Rohit
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A gas turbine having a seal sealing a trench cavity defined between a stator inboard face and rotor inboard face. The seal may include a stator overhang that extends axially toward the rotor inboard face. The stator overhang may include an overhang topside, an overhang underside, and an overhang face that is defined therebetween. The trench cavity seal may include a platform lip extending axially from the rotor inboard face toward the stator inboard face and circumferentially spaced turbulators extending axially from the rotor inboard face. An outboard edge and an inboard edge of the stator overhang axially jut such that, therebetween, a recessed pocket on the overhang face is formed. The platform lip may radially overlaps the recessed pocket on the overhang face so to form a multiple switch-back flowpath.