Film riding seals for rotary machines
Abstract
A seal assembly for a rotary machine is provided. The seal assembly includes multiple sealing device segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the segments includes a shoe plate with a forward-shoe section and an aft-shoe section having one or more labyrinth teeth therebetween facing the rotor. The sealing device includes a stator interface element having a groove or slot for allowing disposal of a spline seal for preventing segment leakages. The sealing device segment also includes multiple bellow springs or flexures connected to the shoe plate and to the stator interface element. Further, the sealing device segments include a secondary seal integrated with the stator interface element at one end and positioned about the multiple bellow springs or flexures and the shoe plate at the other end.
- Inventors:
- Publication Date:
- Research Org.:
- GE Global Research, Niskayuna, New York (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1346051
- Patent Number(s):
- 9,587,746
- Application Number:
- 13/562,705
- Assignee:
- General Electric Company
- DOE Contract Number:
- FC26-05NT42643
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2012 Jul 31
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Bidkar, Rahul Anil, Sarawate, Neelesh Nandkumar, Wolfe, Christopher Edward, Ruggiero, Eric John, and Raj Mohan, Vivek Raja. Film riding seals for rotary machines. United States: N. p., 2017.
Web.
Bidkar, Rahul Anil, Sarawate, Neelesh Nandkumar, Wolfe, Christopher Edward, Ruggiero, Eric John, & Raj Mohan, Vivek Raja. Film riding seals for rotary machines. United States.
Bidkar, Rahul Anil, Sarawate, Neelesh Nandkumar, Wolfe, Christopher Edward, Ruggiero, Eric John, and Raj Mohan, Vivek Raja. 2017.
"Film riding seals for rotary machines". United States. https://www.osti.gov/servlets/purl/1346051.
@article{osti_1346051,
title = {Film riding seals for rotary machines},
author = {Bidkar, Rahul Anil and Sarawate, Neelesh Nandkumar and Wolfe, Christopher Edward and Ruggiero, Eric John and Raj Mohan, Vivek Raja},
abstractNote = {A seal assembly for a rotary machine is provided. The seal assembly includes multiple sealing device segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the segments includes a shoe plate with a forward-shoe section and an aft-shoe section having one or more labyrinth teeth therebetween facing the rotor. The sealing device includes a stator interface element having a groove or slot for allowing disposal of a spline seal for preventing segment leakages. The sealing device segment also includes multiple bellow springs or flexures connected to the shoe plate and to the stator interface element. Further, the sealing device segments include a secondary seal integrated with the stator interface element at one end and positioned about the multiple bellow springs or flexures and the shoe plate at the other end.},
doi = {},
url = {https://www.osti.gov/biblio/1346051},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 07 00:00:00 EST 2017},
month = {Tue Mar 07 00:00:00 EST 2017}
}
Works referenced in this record:
Sealing means between relatively rotating parts
patent, August 1962
- Wigg, R.E.
- US Patent Document 3,051,497
Modular compliant hydrodynamic bearing with overlapping bearing sheet
patent, September 1980
- Gray, Stanley
- US Patent Document 4,223,958
Pressure balanced compliant seal device
patent, December 1994
- Gardner, James F.; Ma, Hai-Ping
- US Patent Document 5,370,402
Compliant foil hydrodynamic fluid film radial bearing
patent, June 1995
- Bosley, Robert W.
- US Patent Document 5,427,455
Compliant pressure balanced seal apparatus
patent, May 1997
- Gardner, James F.
- US Patent Document 5,632,493
Thrust load compensating system for a compliant foil hydrodynamic fluid film thrust bearing
patent, August 1998
- Bosley, Robert W.; Miller, Ronald F.
- US Patent Document 5,791,868
High load capacity compliant foil hydrodynamic thrust bearing
patent, November 1998
- Heshmat, Hooshang
- US Patent Document 5,833,369
High load capacity compliant foil hydrodynamic journal bearing
patent, May 1999
- Heshmat, Hooshang
- US Patent Document 5,902,049
Compliant foil fluid film radial bearing
patent, June 1999
- Weissert, Dennis H.
- US Patent Document 5,915,841
Sealing system for high pressure closed systems having a rotating member and a housing therein
patent, April 2002
- Szymborski, George E.; Jones, Richard A.
- US Patent Document 6,371,488
Turbine rotor-stator leaf seal and related method
patent, March 2003
- Herron, William Lee; Butkiewicz, Jeffrey John
- US Patent Document 6,527,274
Combination transition piece floating cloth seal and stage 1 turbine nozzle flexible sealing element
patent, April 2003
- Cromer, Robert Harold
- US Patent Document 6,547,257
Steam turbine packing casing horizontal joint seals and methods of forming the seals
patent, November 2003
- Burdgick, Steven Sebastian
- US Patent Document 6,648,332
Seal carrier for a rotary machine and method of retrofitting
patent, December 2003
- Fang, Biao; Turnquist, Norman Arnold; Sarshar, Hamid Reza
- US Patent Document 6,655,696
Noncontacting finger seal
patent, November 2004
- Proctor, Margaret P.; Steinetz, Bruce M.
- US Patent Document 6,811,154
Seal assembly for a rotary machine
patent, February 2005
- Paprotna, Hubertus E.
- US Patent Document 6,854,736
Hydrodynamic foil face seal
patent, August 2007
- Agrawal, Giridhari L.; Patel, Kirtikumar H.; Munson, John
- US Patent Document 7,261,300
Sealing device and method for turbomachinery
patent, October 2008
- Ghasripoor, Farshad; Lokhandwalla, Murtuza; Chupp, Raymond Edward
- US Patent Document 7,435,049
Compliant foil fluid film radial bearing or seal
patent, November 2009
- Wade, Jonathan; Lubell, Daniel
- US Patent Document 7,614,792
Non-contact seal for a gas turbine engine
patent, August 2011
- Justak, John F.
- US Patent Document 8,002,285
Shroud assembly with discourager
patent, November 2012
- Foster, Gregory Thomas; Crespo, Andres Jose Garcia; Roberts, Herbert Chidsey
- US Patent Document 8,303,245
Aerodynamic seals for rotary machine
patent, February 2016
- Bidkar, Rahul Anil; Cirri, Massimiliano; Thatte, Azam Mihir
- US Patent Document 9,255,642
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