Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1993-07-16
1994-07-26
Bertsch, Richard A.
Power plants
Combustion products used as motive fluid
Combustion products generator
60733, F23R 334, F23R 346
Patent
active
053318145
ABSTRACT:
A gas turbine engine combustion chamber is disclosed having multiple sets of fuel injectors. A set of first fuel injectors are arranged in two radially inner and outer generally circular first arrays such that the fuel injectors of one array are located circumferentially between the fuel injectors of the other array. The combustion chamber also includes a set of second fuel injectors which are also arranged in two generally circular, radially inner and outer arrays such that, in each array, the second fuel injectors are located circumferentially between the first fuel injectors. In a circumferential direction, the positions of the first and second fuel injectors vary between the radially outward array and the radially inward array. One set of fuel injectors may operate under idle and low power operating conditions, while the other set of fuel injectors inject fuel into the combustion chamber during full power take off or cruise operations. Since the radial positions of adjacent fuel injectors in each set vary in a radial direction around the circumference of the combustion chamber, the radial temperature variations are eliminated.
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The Reduction of Gas Turbine Idle Emissions by Fuel Zoning for Compressor Bleed, Journal of Engineering for Industry, Aug. 1974, pp. 307-310.
Bertsch Richard A.
Societe Nationale d'Etude et de Construction de Moteurs d'Aviati
Thorpe Timothy S.
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