Power plants – Combustion products used as motive fluid – Process
Reexamination Certificate
2006-09-12
2006-09-12
Casaregola, Louis J. (Department: 3746)
Power plants
Combustion products used as motive fluid
Process
C060S740000, C060S776000
Reexamination Certificate
active
07104070
ABSTRACT:
In a gas turbine having a compressor, a combustor and a turbine, a gaseous fuel supply coupled to provide gaseous fuel to the combustor, a liquid fuel supply coupled to provide liquid fuel to the combustor via nozzle assembly. The nozzle assembly includes a plurality of passageways for flowing a fluid into the combustor, one of the passageways being an atomizing air passageway conduit interconnecting the atomizing air passageway to one of the plurality of passageways to enable fluid flow therebetween, while not allowing the flow of fluid back into the atomizing air passageway. High pressure air from the atomizing air passageway is diverted into one of the plurality of passageways via the conduit to protect the nozzle from ingestion of hot combustor gases, thus eliminating a need for a dedicated air purge system for that one of the plurality of passageways.
REFERENCES:
patent: 5784875 (1998-07-01), Statler
patent: 6145294 (2000-11-01), Traver et al.
patent: 6397602 (2002-06-01), Vandervort et al.
patent: 6438963 (2002-08-01), Traver et al.
patent: 6609380 (2003-08-01), Mick et al.
Iasillo Robert J.
Mick Warren James
Cantor & Colburn LLP
Casaregola Louis J.
General Electric Company
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