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Title: Low thermal expansion seal ring support

Abstract

Today, the trend is to increase the temperature of operation of gas turbine engines. To cool the components with compressor discharge air, robs air which could otherwise be used for combustion and creates a less efficient gas turbine engine. The present low thermal expansion sealing ring support system reduces the quantity of cooling air required while maintaining life and longevity of the components. Additionally, the low thermal expansion sealing ring reduces the clearance "C","C'" demanded between the interface between the sealing surface and the tip of the plurality of turbine blades. The sealing ring is supported by a plurality of support members in a manner in which the sealing ring and the plurality of support members independently expand and contract relative to each other and to other gas turbine engine components.

Inventors:
 [1];  [2]
  1. San Diego, CA
  2. Del Mar, CA
Issue Date:
Research Org.:
Solar Turbines Incorporated (San Diego, CA)
OSTI Identifier:
873353
Patent Number(s):
6142731
Assignee:
Caterpillar Inc. (Peoria, IL)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
DOE Contract Number:  
FC21-95MC31173
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
thermal; expansion; seal; support; trend; increase; temperature; operation; gas; turbine; engines; cool; components; compressor; discharge; air; robs; otherwise; combustion; creates; efficient; engine; sealing; reduces; quantity; cooling; required; maintaining; life; longevity; additionally; clearance; demanded; interface; surface; tip; plurality; blades; supported; manner; independently; expand; contract; relative; cooling air; turbine blade; turbine engine; thermal expansion; gas turbine; turbine blades; turbine engines; sealing surface; compressor discharge; expansion sealing; discharge air; engine components; charge air; /415/60/277/

Citation Formats

Dewis, David W, and Glezer, Boris. Low thermal expansion seal ring support. United States: N. p., 2000. Web.
Dewis, David W, & Glezer, Boris. Low thermal expansion seal ring support. United States.
Dewis, David W, and Glezer, Boris. Sat . "Low thermal expansion seal ring support". United States. https://www.osti.gov/servlets/purl/873353.
@article{osti_873353,
title = {Low thermal expansion seal ring support},
author = {Dewis, David W and Glezer, Boris},
abstractNote = {Today, the trend is to increase the temperature of operation of gas turbine engines. To cool the components with compressor discharge air, robs air which could otherwise be used for combustion and creates a less efficient gas turbine engine. The present low thermal expansion sealing ring support system reduces the quantity of cooling air required while maintaining life and longevity of the components. Additionally, the low thermal expansion sealing ring reduces the clearance "C","C'" demanded between the interface between the sealing surface and the tip of the plurality of turbine blades. The sealing ring is supported by a plurality of support members in a manner in which the sealing ring and the plurality of support members independently expand and contract relative to each other and to other gas turbine engine components.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}