US Patent 11428122 Thermal protection for a gas turbine engine probe

A thermal shielding arrangement for a turbine probe comprises a heat shield having first and second mating portions axially engaged in overlapping relationship around a probe extending through an air cavity between an exhaust case and a turbine housing. The first mating portion is provided on a radially outer surface of the turbine housing. The second mating portion projects radially inwardly from a radially inner surface of the exhaust case.