Gas turbine and method of operating it

Details Gas turbine and method of operating it Gas turbine and method of operating it

1995-03-31

1996-09-24

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 3917, 60757, F02C 314

Patent

active

055579183

ABSTRACT:
A gas turbine apparatus for higher pressure and temperature ratio operation, improved thermal efficiency and minimized NO.sub.x emissions includes a high pressure compressor, a high pressure turbine, a low pressure turbine and combustion chambers for each of the turbines. A diffuser guides exhaust gas from the high pressure turbine and retards the velocity of the gases. A 180.degree. bend downstream of the diffuser changes the flow direction of the gases. Fuel lances extend into the bend at the outlet end to inject fuel into the gases after the direction change. The bend directs the gas and fuel into a reversal combustion chamber where the gases and fuel again changes direction by 180.degree., and a ring vortex in the flow is produced. The fuel and air is ignited and combusted, and the combusted gases directed into the low pressure turbine.

REFERENCES:
patent: 3030774 (1962-04-01), Hennibg et al.
patent: 3054257 (1962-09-01), Schelp
patent: 3204406 (1965-09-01), Howes

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