Combustor of a gas turbine engine

a gas turbine engine and combustor technology, applied in the direction of machines/engines, mechanical equipment, lighting and heating apparatus, etc., can solve the problems of carbon monoxide formation at the periphery of the combustor, and the inability to obtain the maximum cooling potential from the available mass of cooling air while still maintaining low emissions
US20050044857A1Inactive Publication Date: 2005-03-03SOLAR TURBINES
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
SOLAR TURBINES
Publication Date
2005-03-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

A combustor has a combustion zone and a liner bounding the combustion zone. The liner has a first end portion and a second end portion spaced a defined distance from the first end portion. The combustor has a convector spaced apart from the liner. The convector has a first end portion and a second end portion spaced a defined distance of the first end portion. A plurality of passages are located between the liner and the convector. One of the passages has a length that is longer than at least one of the defined distance of the liner and the defined distance of the convector.
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Description

TECHNICAL FIELD

[0001] This invention relates generally to a gas turbine engine and more specifically to cooling of a liner of a combustor of a gas turbine engine. BACKGROUND

[0002] Current gas turbine engines continue to improve emissions and engine efficiencies. Notwithstanding these improvements, further increases in engine efficiencies will require more effective use of a mass of compressed air exiting a compressor. Gas turbine engines normally use the mass of compressed air for: 1) combustion air, 2) dilution air, 3) combustor cooling air, and 4) turbine component cooling air. Each use of the mass of compressed air may vary according to a load on the gas turbine engine. Generally each of these uses requires more of the mass of compressed air as the load increases.

[0003] In particular, combustion air and combustor cooling air have increased in importance with increasing regulations of NOx (an uncertain mixture of oxides of nitrogen). The efficiencies of the gas turbine engine u...

Claims

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