US 12,031,480 B2
Gas turbine engine and method for operating same
Steven M. O'Flarity, Port Saint Lucie, FL (US); and Neil Terwilliger, Meriden, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by Raytheon Technologies Corporation, Farmington, CT (US)
Filed on Aug. 29, 2022, as Appl. No. 17/897,995.
Application 17/897,995 is a continuation of application No. 17/142,726, filed on Jan. 6, 2021, granted, now 11,428,161.
Application 17/142,726 is a continuation of application No. 16/549,759, filed on Aug. 23, 2019, granted, now 10,914,234.
Prior Publication US 2022/0412255 A1, Dec. 29, 2022
Int. Cl. F02C 6/14 (2006.01); H02K 7/116 (2006.01); H02K 7/18 (2006.01); H02K 11/00 (2016.01)
CPC F02C 6/14 (2013.01) [H02K 7/116 (2013.01); H02K 7/1823 (2013.01); H02K 11/0094 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for operating a gas turbine engine, the method comprising:
providing a first gas turbine engine spool comprising a first compressor, a first turbine, and a first shaft, the first shaft interconnecting the first compressor and the first turbine;
directing pressurized air from the first compressor to an auxiliary turbine during a first loading condition of the first turbine and controlling a flow rate of the pressurized air directed to the auxiliary turbine;
generating electrical energy, during the first loading condition, with an auxiliary generator in rotational communication with the auxiliary turbine;
storing the electrical energy in an energy storage device during the first loading condition; and
applying the electrical energy stored in the energy storage device to an electrical load at a second loading condition of the first turbine, the second loading condition greater than the first loading condition.