Damper seal system and method

Details Damper seal system and method Damper seal system and method

2007-07-03

2007-07-03

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

With sound or vibratory wave absorbing or preventing means...

C415S173300, C416S191000

Reexamination Certificate

active

11265384

ABSTRACT:
A damper and seal system for a stage of a turbine that includes inner shrouds disposed circumferentially of a hot gas path through the turbine stage and shroud body(s) for supporting the inner shroud(s). A damper block engages a backside surface of the inner shroud and a damping mechanism is carried by the shroud body and connected to the damper block for applying a load to the damper block and inner shroud through the engagement of the block with the backside surface of the inner shroud, thereby damping vibratory movement of the inner shroud. The seal system includes at least one primary, integral seal and at least one secondary, non-integral seal to limit axial and radial hot gas leakage through the stage.

REFERENCES:
patent: 6758653 (2004-07-01), Morrison
patent: 6893214 (2005-05-01), Alford et al.
patent: 6942203 (2005-09-01), Schroder et al.
patent: 7117983 (2006-10-01), Good et al.
patent: 2005/0092566 (2005-05-01), Good et al.
patent: 2005/0093214 (2005-05-01), Good et al.
patent: 2005/0158168 (2005-07-01), Bruce et al.
U.S. Appl. No. 10/455,785, filed Jun. 6, 2003.

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