ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,280, issued on Aug. 19, was assigned to RTX Corp. (Farmington, Conn.).
"Gas turbine engine with high low spool power extraction ratio" was invented by Stephen G. Pixton (South Windsor, Conn.) and Karl L Hasel (Manchester, Conn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gear reduction drives a fan rotor at a speed slower than a fan drive turbine. The turbine section further includes a high pressure turbine driving a high pressure compressor. The fan drive turbine and low pressure compressor are connected by a shaft and the low pressure turbine. The shaft and the low pressure compressor define a low pressure spool, the low pressure spool has a ...