Lean premix combustor system

Details Lean premix combustor system Lean premix combustor system

1992-11-10

1994-12-13

Bertsch, Richard A.

Power plants

Combustion products used as motive fluid

Combustion products generator

60746, 60748, 431352, F23R 334

Patent

active

053720083

ABSTRACT:
Past systems have attempted to provide a combustion system to reduce NOx pollution, however, such methods have failed to attain adequate reductions in NOx pollution. The present system or structure for for reducing NOx includes a pilot fuel system and a premixed supply system to reduce the NOx to a workable level. The pilot system uses a device for supplying combustible fuel to the fuel injection nozzle generally along a combustion axis during all or a portion of the operating conditions of the engine. Low NOx is maintained by using a device for supplying combustible fuel into each of a plurality of spaces formed between a plurality of swirler vanes. Low NOx is further maintained by having the cooling fluid used to cool the fuel injection nozzle mixed with the fuel and air from the spaces prior to entering the combustion chamber.

REFERENCES:
patent: Re23149 (1949-09-01), Lubbock et al.
patent: 2826039 (1958-03-01), Ashwood
patent: 3713588 (1973-01-01), Sharpe
patent: 4726192 (1988-02-01), Willis et al.
patent: 5069029 (1991-12-01), Kuroda et al.
patent: 5121608 (1992-06-01), Willis et al.
Article entitled "Ongoing Development of a Low Emission Industrial Gas Turbine Combustion Chamber" published in the Journal of Engineering for Power, Jul. 1980, vol. 102, pp. 549-554 by V. M. Sood and J. R. Shekleton.

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