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Title: Combustor for a low-emissions gas turbine engine

Abstract

Many government entities regulated emission from gas turbine engines including CO. CO production is generally reduced when CO reacts with excess oxygen at elevated temperatures to form CO2. Many manufactures use film cooling of a combustor liner adjacent to a combustion zone to increase durability of the combustion liner. Film cooling quenches reactions of CO with excess oxygen to form CO2. Cooling the combustor liner on a cold side (backside) away from the combustion zone reduces quenching. Furthermore, placing a plurality of concavities on the cold side enhances the cooling of the combustor liner. Concavities result in very little pressure reduction such that air used to cool the combustor liner may also be used in the combustion zone. An expandable combustor housing maintains a predetermined distance between the combustor housing and combustor liner.

Inventors:
 [1];  [2];  [2];  [2]
  1. Del Mar, CA
  2. San Diego, CA
Publication Date:
Research Org.:
SOLAR TURBINES INC
OSTI Identifier:
873133
Patent Number(s):
US 6098397
Assignee:
Caterpillar Inc. (Peoria, IL)
DOE Contract Number:  
AC02-92CE40960
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
combustor; low-emissions; gas; turbine; engine; government; entities; regulated; emission; engines; including; production; reduced; reacts; excess; oxygen; elevated; temperatures; form; co2; manufactures; film; cooling; liner; adjacent; combustion; zone; increase; durability; quenches; reactions; cold; backside; reduces; quenching; furthermore; placing; plurality; concavities; enhances; result; pressure; reduction; air; cool; expandable; housing; maintains; predetermined; distance; pressure reduction; elevated temperatures; turbine engine; combustion zone; elevated temperature; gas turbine; predetermined distance; turbine engines; excess oxygen; combustion liner; /60/

Citation Formats

Glezer, Boris, Greenwood, Stuart A, Dutta, Partha, and Moon, Hee-Koo. Combustor for a low-emissions gas turbine engine. United States: N. p., 2000. Web.
Glezer, Boris, Greenwood, Stuart A, Dutta, Partha, & Moon, Hee-Koo. Combustor for a low-emissions gas turbine engine. United States.
Glezer, Boris, Greenwood, Stuart A, Dutta, Partha, and Moon, Hee-Koo. Sat . "Combustor for a low-emissions gas turbine engine". United States. https://www.osti.gov/servlets/purl/873133.
@article{osti_873133,
title = {Combustor for a low-emissions gas turbine engine},
author = {Glezer, Boris and Greenwood, Stuart A and Dutta, Partha and Moon, Hee-Koo},
abstractNote = {Many government entities regulated emission from gas turbine engines including CO. CO production is generally reduced when CO reacts with excess oxygen at elevated temperatures to form CO2. Many manufactures use film cooling of a combustor liner adjacent to a combustion zone to increase durability of the combustion liner. Film cooling quenches reactions of CO with excess oxygen to form CO2. Cooling the combustor liner on a cold side (backside) away from the combustion zone reduces quenching. Furthermore, placing a plurality of concavities on the cold side enhances the cooling of the combustor liner. Concavities result in very little pressure reduction such that air used to cool the combustor liner may also be used in the combustion zone. An expandable combustor housing maintains a predetermined distance between the combustor housing and combustor liner.},
doi = {},
url = {https://www.osti.gov/biblio/873133}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}

Patent:

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