US Patent Issued to RTX on Feb. 3 for "Hybrid electric gas turbine engine two speed transmission for low spool drive power injection and power extraction" (Arizona, Maine, Connecticut Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,578, issued on Feb. 3, was assigned to RTX Corp. (Farmington, Conn.).

"Hybrid electric gas turbine engine two speed transmission for low spool drive power injection and power extraction" was invented by Thomas E. Clark (Wells, Maine), Paul R. Hanrahan (Sedona, Ariz.) and Andrew E. Breault (Bolton, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hybrid electric gas turbine engine two speed transmission for a low spool drive including an accessory gearbox in operative communication with a low speed spool motor-generator; a transmission in operative communication with the accessory gearbox and the low speed spool motor-generator; a low speed spoo...