GAS TURBINE ENGINE WITH THIRD STREAM

Abstract: a gas turbine engine is provided. the gas turbine engine includes a turbomachine defining an engine inlet to an inlet duct, a fan duct inlet to a fan duct, and a core inlet to a core duct; a primary fan driven by the turbomachine; and a secondary fan located downstream of the primary fan within the inlet duct. the gas turbine engine defines a thrust to power airflow ratio between 3.5 and 100 and a core bypass ratio between 0.1 and 10, wherein the thrust to power airflow ratio is a ratio of an airflow through a bypass passage over the turbomachine plus an airflow through the fan duct to an airflow through the core duct, and wherein the core bypass ratio is a ratio of the airflow through the fan duct to the airflow through the core duct.

Inventor(s): William Joseph Bowden, David Marion Ostdiek, Ian McKnight, Syed J. Khalid, Brandon Wayne Miller, Randy M. Vondrell, Craig William Higgins, Alexander Kimberley Simpson

CPC Classification: F02K3/065 (JET-PROPULSION PLANTS (features of jet-propulsion plants common to gas-turbine plants, air intakes or fuel supply control of air-breathing jet-propulsion plants , ))

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