Active bypass flow control for a seal in a gas turbine engine
Abstract
An active bypass flow control system for controlling bypass compressed air based upon leakage flow of compressed air flowing past an outer balance seal between a stator and rotor of a first stage of a gas turbine in a gas turbine engine is disclosed. The active bypass flow control system is an adjustable system in which one or more metering devices may be used to control the flow of bypass compressed air as the flow of compressed air past the outer balance seal changes over time as the outer balance seal between the rim cavity and the cooling cavity wears. In at least one embodiment, the metering device may include a valve formed from one or more pins movable between open and closed positions in which the one pin at least partially bisects the bypass channel to regulate flow.
- Inventors:
- Issue Date:
- Research Org.:
- SIEMENS ENERGY, INC. Orlando, FL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1338923
- Patent Number(s):
- 9540945
- Application Number:
- 14/192,974
- Assignee:
- SIEMENS ENERGY, INC. (Orlando, FL)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- DOE Contract Number:
- FC26-05NT42644
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2014 Feb 28
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS
Citation Formats
Ebert, Todd A., and Kimmel, Keith D. Active bypass flow control for a seal in a gas turbine engine. United States: N. p., 2017.
Web.
Ebert, Todd A., & Kimmel, Keith D. Active bypass flow control for a seal in a gas turbine engine. United States.
Ebert, Todd A., and Kimmel, Keith D. Tue .
"Active bypass flow control for a seal in a gas turbine engine". United States. https://www.osti.gov/servlets/purl/1338923.
@article{osti_1338923,
title = {Active bypass flow control for a seal in a gas turbine engine},
author = {Ebert, Todd A. and Kimmel, Keith D.},
abstractNote = {An active bypass flow control system for controlling bypass compressed air based upon leakage flow of compressed air flowing past an outer balance seal between a stator and rotor of a first stage of a gas turbine in a gas turbine engine is disclosed. The active bypass flow control system is an adjustable system in which one or more metering devices may be used to control the flow of bypass compressed air as the flow of compressed air past the outer balance seal changes over time as the outer balance seal between the rim cavity and the cooling cavity wears. In at least one embodiment, the metering device may include a valve formed from one or more pins movable between open and closed positions in which the one pin at least partially bisects the bypass channel to regulate flow.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {1}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Device for regulating turbine blade tip clearance
patent, August 1976
- Hallinger, Claude C.; Kervistin, Robert
- US Patent Document 3,975,901
Air separator for gas turbines
patent, November 2000
- Ai, Toshishige; Iwasaki, Yoichi; Aoki, Sunao
- US Patent Document 6,151,881
Bolted joint for rotor disks and method of reducing thermal gradients therein
patent, August 2002
- Pepi, Jason Francis; Ebert, Todd A.
- US Patent Document 6,428,272
Heat energy dissipation device for a flywheel energy storage system (FESS), an FESS with such a dissipation device and methods for dissipating heat energy
patent, January 2004
- Lewis, Eric Anthony; Ebert, Todd A.
- US Patent Document 6,675,872
Internal combustion engine provided with decompressing mechanisms
patent, November 2004
- Takada, Hideaki; Suzuki, Nobuo; Yoshida, Hiroyuki
- US Patent Document 6,817,331
Passive thermostatic bypass flow control for a brush seal application
patent, November 2008
- Ebert, Todd A.; Pinera, Alex; Negron, Antonio
- US Patent Document 7,445,424
Box rim cavity for a gas turbine engine
patent, June 2009
- Ebert, Todd A.
- US Patent Document 7,540,709
Insulated turbine disc of a turbo-pump
patent, July 2010
- Pinera, Alex; Ebert, Todd A.
- US Patent Document 7,748,959
Triple acting radial seal
patent, March 2012
- Ebert, Todd A.; Carella, John
- US Patent Document 8,133,014
Gas turbine sealing apparatus
patent, February 2013
- Wiebe, David J.; Wessell, Brian J.; Ebert, Todd A.
- US Patent Document 8,376,697
Particle separator in a gas turbine engine
patent, November 2013
- Ebert, Todd A.; Kimmel, Keith D.; Laurello, Vincent P.
- US Patent Document 8,578,720
Cooling fluid pre-swirl assembly for a gas turbine engine
patent, November 2013
- Laurello, Vincent P.; Kimmel, Keith D.; Ebert, Todd A.
- US Patent Document 8,584,469
Cooling fluid metering structure in a gas turbine engine
patent, December 2013
- Kimmel, Keith D.; Laurello, Vincent P.; Ebert, Todd A.
- US Patent Document 8,613,199