US 12,215,636 B2
Pulse modulation technique for gas turbine engines
Joshua Andrew Emrich, Grapevine, TX (US); and Thomas Dewey Parsons, Fort Worth, TX (US)
Assigned to Textron Innovations Inc., Providence, RI (US)
Filed by Textron Innovations Inc., Providence, RI (US)
Filed on Sep. 12, 2022, as Appl. No. 17/942,529.
Prior Publication US 2024/0084742 A1, Mar. 14, 2024
Int. Cl. F02C 9/32 (2006.01); B64D 31/00 (2006.01); B64D 45/00 (2006.01)
CPC F02C 9/32 (2013.01) [B64D 31/00 (2013.01); B64D 45/00 (2013.01); B64D 2045/0085 (2013.01); F05D 2220/323 (2013.01); F05D 2220/329 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An aircraft comprising:
a multi-engine configuration with multiple engines; and
a flight control system coupled to the multiple engines with a multi-engine interface, wherein the flight control system is configured to:
reduce fuel consumption of at least one engine of the multiple engines during reduced-engine operation by pulse modulating fuel delivery to the at least one engine of the multiple engines;
calculate a minimum altitude of the aircraft for reduced-engine operation; and
restart the at least one engine if a current altitude of the aircraft drops below the minimum altitude.