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Title: Pressurized damping fluid injection for damping turbine blade vibration

Abstract

A blade vibration damping system impacts a pressurized damping fluid on a surface of at least one of a plurality of blades of a turbine in opposition to a vibratory movement thereof to cause damping of vibration of the blade(s) during operation of the turbine. The system includes a fluid injection nozzle in a stationary component adjacent the plurality of blades. A valve selectively admits the pressurized damping fluid to the fluid injection nozzle from a source of pressurized damping fluid, and a control system controls the valve to operate the fluid injection nozzle in response to an operational parameter exceeding a threshold during operation of the turbine. A related turbine casing and method are also provided.

Inventors:
; ;
Issue Date:
Research Org.:
General Electric Co., Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1840331
Patent Number(s):
11085303
Application Number:
16/902,343
Assignee:
General Electric Company (Schenectady, NY)
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:  
FE0031613
Resource Type:
Patent
Resource Relation:
Patent File Date: 06/16/2020
Country of Publication:
United States
Language:
English

Citation Formats

Delvaux, John McConnell, Lang, Claire Fridtjof, and Chakrabarti, Suryarghya. Pressurized damping fluid injection for damping turbine blade vibration. United States: N. p., 2021. Web.
Delvaux, John McConnell, Lang, Claire Fridtjof, & Chakrabarti, Suryarghya. Pressurized damping fluid injection for damping turbine blade vibration. United States.
Delvaux, John McConnell, Lang, Claire Fridtjof, and Chakrabarti, Suryarghya. Tue . "Pressurized damping fluid injection for damping turbine blade vibration". United States. https://www.osti.gov/servlets/purl/1840331.
@article{osti_1840331,
title = {Pressurized damping fluid injection for damping turbine blade vibration},
author = {Delvaux, John McConnell and Lang, Claire Fridtjof and Chakrabarti, Suryarghya},
abstractNote = {A blade vibration damping system impacts a pressurized damping fluid on a surface of at least one of a plurality of blades of a turbine in opposition to a vibratory movement thereof to cause damping of vibration of the blade(s) during operation of the turbine. The system includes a fluid injection nozzle in a stationary component adjacent the plurality of blades. A valve selectively admits the pressurized damping fluid to the fluid injection nozzle from a source of pressurized damping fluid, and a control system controls the valve to operate the fluid injection nozzle in response to an operational parameter exceeding a threshold during operation of the turbine. A related turbine casing and method are also provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 10 00:00:00 EDT 2021},
month = {Tue Aug 10 00:00:00 EDT 2021}
}

Works referenced in this record:

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patent, July 1975


Gas Turbine Engine with Airfoil Dampening System
patent-application, September 2016


Self retaining blade damper
patent, January 2001


Programmable jet blade excitation system
patent, October 1988


Turbine blade assembly with pin dampers
patent, January 2004


Self-tuning impact damper for rotating blades
patent, December 2004


Damped stator assembly
patent, April 2012


Turbine blade with vibration damper
patent-application, April 2007


Wind Turbine
patent-application, June 2011


Piezo Actuated High Speed Air Valve Used for Blade and Component Excitation
patent-application, February 2018


Fluid-cooled turbine blades
patent, May 2003


Flat Bottom Damper Pin For Turbine Blades
patent-application, March 2014


Aerodynamic damping of vibrations in rotor blades
patent, July 1985


Rotary Fluid Machines with Damped Blades
patent, January 1961


Hydrostatic and active control movable pad bearing
patent, May 1996


Coolable rotor assembly
patent, May 1995


Damper Pin for a Turbine Blade
patent-application, March 2017


Airfoil Damping Assembly for Gas Turbine Engine
patent-application, November 2018


Fluid Damper and Method of Making
patent-application, December 2015


Turbine blade platform damper
patent, June 1993


Sealing Element for Use in a Fluid-Flow Machine
patent-application, September 2008