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

Claim 0:
1. A system comprising:
a turbine engine configured to combust a fuel to mechanically rotate a rotor to generate shaft power and generate an engine air flow through the turbine engine using a first portion of the shaft power, wherein the turbine engine is configured to provide a forward thrust to an aircraft body by exhausting an exhaust flow through a nozzle of the turbine engine, and wherein the exhaust flow is a portion of the engine air flow;
a second turbine engine configured to generate a second engine air flow through the second turbine engine, wherein the second turbine engine is configured to provide a second forward thrust to the aircraft body by exhausting a second exhaust flow through a second nozzle, wherein the second exhaust flow is a portion of the second engine air flow;
a shaft-driven lift fan 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 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 at least one of another portion of the engine air flow or another portion of the second engine air flow; and
a duct configured to cause the gas flow to selectively bypass at least one of the nozzle or the second nozzle to supply the gas flow to the gas-driven lift fan.