Temperature control device for jet engine nacelle associated structure

A temperature control device for use in a jet aircraft engine installation, the engine installation comprising a jet engine having a primary exhaust nozzle from which the jet engine produces a rearwardly extending primary exhaust plume of hot gases, the primary exhaust plume having a centerline and a generally cylindrical shape about said centerline, the engine installation further comprising a nacelle for supporting and enclosing the jet engine, and a nacelle-associated structure that includes the temperature control device and that extends in a generally fore and aft direction above the centerline of the primary exhaust plume from a forward aerodynamically shaped leading edge to an aft trailing edge, the temperature control device comprising:

• a deflector formed at the lowermost surface of the nacelle-associated structure, the deflector having a sheet-like lower surface having a lateral extent greater than the lateral extent of the nacelle-associated structure immediately above the deflector and aligned generally in parallel conformance therewith, the deflector extending longitudinally aft from the primary exhaust nozzle substantially to the trailing edge of the nacelle-associated structure and being positioned such that said lower surface is generally parallel to the primary exhaust plume.