Aerodynamic seal assemblies for turbo-machinery

Title: Aerodynamic seal assemblies for turbo-machinery

The present application provides an aerodynamic seal assembly for use with a turbo-machine. The aerodynamic seal assembly may include a number of springs, a shoe connected to the springs, and a secondary seal positioned about the springs and the shoe.

Inventors:: Bidkar, Rahul Anil; Wolfe, Christopher; Fang, Biao

Issue Date:: 2015-09-29

OSTI Identifier:: 1221976

Assignee:: General Electric Company (Niskayuna, NY) NETL

Patent Number(s):: 9,145,785

Application Number:: 13/040,474

Contract Number:: FC26-05NT42643

Resource Relation:: Patent File Date: 2011 Mar 04

Research Org:: General Electric Company, Niskayuna, NY (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

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Other works cited in this record:

Compliant pressure balanced seal apparatus
patent, May 1997

Gardner, James F.
US Patent Document 5,632,493
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN/5632493

Compliant foil seal
patent, January 2003

Heshmat, Hooshang
US Patent Document 6,505,837
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN/6505837

Turbine rotor-stator leaf seal and related method
patent, May 2003

Herron, William Le
US Patent Document 6,527,274
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN/6527274

Hydrodynamic foil face seal
patent, August 2007

Agrawal, Giridhari L.; Patel, Kirtikumar H.; Munson, John H.
US Patent Document 7,261,300
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN/7261300

Sealing device and method for turbomachinery
patent, October 2008

Ghasripoor, Farshad; Lokhandwalla, Murtuza; Chupp, Raymond Edward
US Patent Document 7,435,049
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN/7435049

Performance of a Complaint Foil Seal in a Small Gas Turbine Engine Simulator Employing a Hybrid Foil/Ball Bearing Support System
journal, January 2001

Salehi, Mohsen; Heshmat, Hooshang
Tribology Transactions, Vol. 44, Issue 3, p. 458-464
DOI: 10.1080/10402000108982481

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