Patent ID: 11867121
Assignee: GENERAL ELECTRIC COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 19:
20. A method comprising:
removably attaching an outlet guide vane assembly to a turbine rear frame of a gas turbine engine, the outlet guide vane assembly comprising:
multiple outlet guide vanes located in an exhaust airflow path downstream of a turbine section, the multiple outlet guide vanes being spaced-apart circumferentially from each other over an angular range of about 360 degrees, and each multiple outlet guide vane defining a radial extent;
wherein at least one of the multiple outlet guide vanes comprises a cold fluid passageway extending at least partially radially therethrough through which a fluid coolant flows away from a thermal transport bus connected to a source of the liquid coolant and another of the multiple guide vanes comprises a heated fluid passageway extending at least partially radially therethrough through which the fluid coolant flows and receives heat from exhaust airflow from a core airflow path and returns to the thermal transport bus, the cold fluid passageway and heated fluid passageway are connected together forming a closed fluid passageway through the cold fluid passageway, away from the thermal transport bus and through the heated fluid passageway back to the thermal transport bus; and

delivering the fluid coolant through the cold fluid passageway and then the heated fluid passageway, the fluid coolant receiving heat from exhaust airflow from the core airflow path as the fluid coolant is directed through the heated fluid passageway.