US 12,078,084 B1
Increased water heat absorption capacity for steam injected turbine engine
Neil J. Terwilliger, Cheshire, CT (US); and Joseph B. Staubach, Colchester, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by Raytheon Technologies Corporation, Farmington, CT (US)
Filed on Feb. 10, 2023, as Appl. No. 18/108,336.
Int. Cl. F01K 11/02 (2006.01); F01K 7/22 (2006.01); F01K 15/02 (2006.01)
CPC F01K 11/02 (2013.01) [F01K 7/223 (2013.01); F01K 15/02 (2013.01); F05D 2220/72 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A turbine engine assembly comprising:
a core engine generating an exhaust gas flow, the core engine including a compressor where inlet airflow is compressed and communicated to a combustor where the compressed airflow is mixed with fuel and ignited to generate the exhaust gas flow that is expanded through the turbine section;
a condenser where water is extracted from the exhaust gas flow;
an evaporator disposed within an exhaust gas flow path where heat is input into the water extracted by the condenser without superheat to generate a first steam flow;
a steam turbine where the first steam flow is expanded and cooled; and
a superheater disposed within the exhaust gas flow path where additional heat is input into the first steam flow exhausted from the steam turbine to generate a second steam flow, wherein the second steam flow is injected into a core flow path of the core engine wherein the exhaust gas flow is communicated through the superheater before being communicated through the evaporator.