DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Cooling system for three hook ring segment

Abstract

A triple hook ring segment including forward, midsection and aft mounting hooks for engagement with respective hangers formed on a ring segment carrier for supporting a ring segment panel, and defining a forward high pressure chamber and an aft low pressure chamber on opposing sides of the midsection mounting hook. An isolation plate is provided on the aft side of the midsection mounting hook to form an isolation chamber between the aft low pressure chamber and the ring segment panel. High pressure air is supplied to the forward chamber and flows to the isolation chamber through crossover passages in the midsection hook. The isolation chamber provides convection cooling air to an aft portion of the ring segment panel and enables a reduction of air pressure in the aft low pressure chamber to reduce leakage flow of cooling air from the ring segment.

Inventors:
; ; ;
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1151789
Patent Number(s):
8814507
Application Number:
13/903,087
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
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Campbell, Christian X., Eng, Darryl, Lee, Ching-Pang, and Patat, Harry. Cooling system for three hook ring segment. United States: N. p., 2014. Web.
Campbell, Christian X., Eng, Darryl, Lee, Ching-Pang, & Patat, Harry. Cooling system for three hook ring segment. United States.
Campbell, Christian X., Eng, Darryl, Lee, Ching-Pang, and Patat, Harry. Tue . "Cooling system for three hook ring segment". United States. https://www.osti.gov/servlets/purl/1151789.
@article{osti_1151789,
title = {Cooling system for three hook ring segment},
author = {Campbell, Christian X. and Eng, Darryl and Lee, Ching-Pang and Patat, Harry},
abstractNote = {A triple hook ring segment including forward, midsection and aft mounting hooks for engagement with respective hangers formed on a ring segment carrier for supporting a ring segment panel, and defining a forward high pressure chamber and an aft low pressure chamber on opposing sides of the midsection mounting hook. An isolation plate is provided on the aft side of the midsection mounting hook to form an isolation chamber between the aft low pressure chamber and the ring segment panel. High pressure air is supplied to the forward chamber and flows to the isolation chamber through crossover passages in the midsection hook. The isolation chamber provides convection cooling air to an aft portion of the ring segment panel and enables a reduction of air pressure in the aft low pressure chamber to reduce leakage flow of cooling air from the ring segment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {8}
}

Works referenced in this record:

Multiple-impingement cooled structure
patent, March 1986


Turbine ring for a gas turbine engine
patent, July 1987


Turbine shroud clearance control assembly
patent, July 1992


Impingement cooling for the shroud of a gas turbine
patent, October 2000


End rail cooling for combined high and low pressure turbine shroud
patent, January 2002


Multiple impingement cooled structure
patent, August 2004


Double impingement vane platform cooling
patent, August 2006


Extended impingement cooling device and method
patent, September 2007


Methods and system for cooling integral turbine nozzle and shroud assemblies
patent, June 2010


Methods and system for cooling integral turbine shround assemblies
patent, June 2010


Method and system to facilitate cooling turbine engines
patent, August 2010


Stator heat shield
patent, August 2011


Dual stage turbine shroud
patent, April 2012


Borescope boss and plug cooling
patent, August 2012


Shroud seal segments arrangement in a gas turbine
patent, January 2013


Turbine shroud segment and shroud assembly
patent-application, July 2003


Shroud Seal Segments Arrangement in a Gas Turbine
patent-application, July 2011


    Works referencing / citing this record:

    Industrial gas turbine exhaust system diffuser inlet lip
    patent, March 2017


    Shroud block segment for a gas turbine
    patent, October 2016