Patent ID: 7211906

Claim:
A method to generate electrical output power comprising: an engine body; a combustor heat source in said engine body; a compressor rotor with blades attached, within a compressor chamber and in fluid communication with the combustor in said engine body; a turbine rotor with blades secured and in fluid communication with the combustor and attached to the said compressor rotor in said engine body; an integral alternator rotor with secured permanent magnets within said engine body, and integrated to said compressor rotor and turbine rotor as a power output rotor spool; a iron laminate stator with electrical wire is coaxially located about and in close proximity to the said alternator rotor were relative rotation cause magnetic flux and subsequent electricity to be generated; an air inlet port in fluid communication with compressor chamber; a steam turbine rotor with blades is integrated to the said power output rotor spool within the said engine body; a cantilevered steam turbine rotor as being overhung from the gas turbine rotor, a steam turbine shaft labyrinth seal, steam turbine shaft seal located in the steam turbine housing and a heat recovery steam generator (HRSG) system using the gas turbine exhaust waste heat to create steam energy for the steam turbine rotor of a combined cycle by gas turbine and steam turbine power-plant with high electrical output power efficiency, wherein said heat recovery steam generator using the gas turbine exhaust waste heat source for the steam of the combined cycle configuration to drive the said common alternator rotor for electrical power generation, the steam turbine exhaust is condensed and recycled or can be open type without condensing or recycling the steam fluid of the steam turbine system, wherein said labyrinth seal has o-ring seal of resilient material located on the outer diameter to retain said labyrinth seal circumferentially and dampen relative motion between said power output rotor and engine body.