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Title: Layered seal for turbomachinery

Patent ·
OSTI ID:1226450

The present application provides seal assemblies for reducing leakages between adjacent components of turbomachinery. The seal assemblies may include outer shims, and at least a portion of the outer shims may be substantially impervious. At least one of the outer shims may be configured for sealing engagement with seal slots of the adjacent components. The seal assemblies may also include at least one of an inner shim and a filler layer positioned between the outer shims. The at least one inner shim may be substantially solid and the at least one filler layer may be relatively porous. The seal assemblies may be sufficiently flexible to account for misalignment between the adjacent components, sufficiently stiff to meet assembly requirements, and sufficiently robust to operating meet requirements associated with turbomachinery.

Research Organization:
GE Global Research, Niskayuna, New York (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42643
Assignee:
General Electric Company
Patent Number(s):
9,188,228
Application Number:
13/560,357
OSTI ID:
1226450
Resource Relation:
Patent File Date: 2012 Jul 27
Country of Publication:
United States
Language:
English

References (21)

Shroud seal patent February 1992
Flexible three-piece seal assembly patent October 1992
Stator and multiple piece seal patent June 1993
Exhaust manifold gasket patent November 1994
Gas turbine engine rotor blading sealing device patent January 1997
System and method for mapping calls to functions in a first driver level library to a session-based instrumentation control driver level system patent May 1997
Gas turbine stator vane seal patent February 1999
Gas-path leakage seal for a turbine patent August 1999
Seal of stacked thin slabs that slide within reception slots patent December 1999
Assembly for brazing a stator component of a gas turbine engine and method brazing articles such as an abradable material to a stator of a gas turbine engine patent December 2000
Metallic gasket patent April 2001
Biased wear resistant turbine seal assembly patent May 2004
Seal assembly for a rotary machine patent February 2005
Multidirectional turbine shim seal patent April 2005
Metal laminate gasket patent August 2006
Seal for a gas turbine engine having improved flexibility patent February 2008
High temperature seals and high temperature sealing systems patent August 2010
Seal assembly patent March 2011
System and method for adjusting stiffness of a brush sealing system patent October 2011
Reducing inter-seal gap in gas turbine patent December 2011
Bi-metallic strip seal for a turbine shroud patent July 2012

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