US 11,920,526 B1
Inter-cooled preheat of steam injected turbine engine
Neil J. Terwilliger, Cheshire, CT (US); Nathan A. Snape, Tolland, 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 Aug. 12, 2022, as Appl. No. 17/886,950.
Int. Cl. F02C 9/40 (2006.01); F02C 3/06 (2006.01); F02C 7/22 (2006.01)
CPC F02C 9/40 (2013.01) [F02C 3/06 (2013.01); F02C 7/22 (2013.01)] 16 Claims
OG exemplary drawing
 
14. A method of intercooling a core airflow of a turbine engine comprising:
communicating a portion of a water flow to an intercooling system disposed within a compressor section of the turbine engine;
cooling the core airflow with the portion of the water flow by placing the core airflow and the portion of the water flow into thermal communication in the intercooling system resulting in a heated water flow;
communicating h heated water flow from the intercooling system to an evaporator aft of a combustor of the turbine engine to generate a steam flow; and
injecting the steam flow into the combustor.