Aircraft engine with optimized oil heat exchanger

Abstract

This invention relates town ejector nozzle tube 1, having along its length an essentially constant, essentially oval hollow cross-section, with an inflow lip 2, having a pitch-circle type cross-section, being arranged at a flow leading-edge area of the ejector nozzle tube 1. The inflow lip 2 is provided with a plurality of grooves 3 issuing (4) to the top and bottom sides of the ejector nozzle tube 1 and connecting to an interior 5 of the ejector nozzle tube 1 formed by the hollow profile. It also relates to an aircraft engine with optimized oil heat exchanger with at least one oil cooler 6 disposed in a trailing-edge area 7 of an aerofoil-type structure 8, with at least one flow entrance area 9 being provided to supply ambient air to the oil cooler 6 disposed in a flow duct 10, and with an ejector nozzle tube 1 in accordance with one of the claims 1 to 3 being arranged downstream of the oil cooler 6 in the flow duct 10.

Dependencies are inferred from the claim text.