US 12,345,165 B1
Gas turbine engine having multiple steam turbines
Daniel A. Niergarth, Norwood, OH (US); and Brandon W. Miller, Middletown, OH (US)
Assigned to GENERAL ELECTRIC COMPANY, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Feb. 29, 2024, as Appl. No. 18/591,643.
Int. Cl. F01D 13/00 (2006.01); F01D 15/12 (2006.01); F03D 13/00 (2016.01)
CPC F01D 15/12 (2013.01) [F03D 13/00 (2016.05); F05D 2220/72 (2013.01); F05D 2260/4023 (2013.01); F05D 2260/4031 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gas turbine engine comprising:
a steam generating system that generates steam; and
a turbo-engine comprising:
a first spool having a fan and a low-pressure turbine, the fan and the low-pressure turbine being drivingly connected together via a low-pressure shaft;
a second spool having an intermediate-pressure compressor and an intermediate-pressure turbine, the intermediate-pressure compressor and the intermediate-pressure turbine being drivingly connected together via an intermediate-pressure shaft; and
a third spool having a high-pressure compressor and a high-pressure turbine, the high-pressure compressor and the high-pressure turbine being drivingly connected together via a high-pressure shaft;
a first steam turbine arranged to receive a flow of the steam from the steam generating system, and arranged to be connected to, and to drive the first spool; and
a second steam turbine arranged to receive a flow of the steam from the steam generating system, and arranged to be connected to, and to drive one of the second spool or the third spool.