Patent ID: 11859542
Assignee: ROLLS-ROYCE NORTH AMERICAN TECHNOLOGIES, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 14:
15. An aircraft comprising:
a turbine engine configured to combust a first fuel to mechanically rotate a rotor to generate shaft power and generate an engine air flow through the turbine engine using a portion of the shaft power, wherein the turbine engine is configured to provide a forward thrust to an aircraft body of the aircraft using a first exhaust flow, and wherein the first exhaust flow is a portion of the engine air flow;
two or more shaft-driven lift fans, a shaft-driven lift fan of the two or more shaft-driven lift fans configured to rotate to provide a first vertical thrust to the aircraft body using rotor power transferred from the rotor, wherein the rotor power is a second portion of the shaft power;
a single gas-driven lift fan configured to rotate to provide a second vertical thrust to the aircraft body using a gas flow, wherein the gas flow is another portion of the engine air flow,
wherein the two or more shaft-driven lift fans are forward of the single gas-driven lift fan.