Resilient seal on trailing edge of turbine inner shroud and...

Details Resilient seal on trailing edge of turbine inner shroud and... Resilient seal on trailing edge of turbine inner shroud and...

2008-03-04

2008-03-04

Edgar, Richard A. (Department: 3745)

Rotary kinetic fluid motors or pumps

Including thermal expansion joint

Circumferentially spaced nozzle or stator segments

C415S174200

Reexamination Certificate

active

07338253

ABSTRACT:
A sealing arrangement for the post impingement cavity of a stator shroud segment is provided that includes a resilient seal to reduce air leakage and improve turbine energy efficiency. The stator shroud segment includes an outer shroud having a leading edge groove and a trailing edge groove; and a plurality of inner shrouds, each having a leading edge hook and a trailing edge hook. The leading and trailing hooks of each of the inner shrouds are respectively engaged with the leading and trailing edge grooves of the outer shroud so as to connect the inner shroud to the outer shroud. The resilient shaped seal is located at a trailing edge of the respectively engaged inner and outer shrouds at an interface of the inner shroud and the outer shroud. In an example embodiment, a sealing groove is defined in the outer shroud for receiving the aft resilient seal.

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