Heat exchanger, propulsion unit and aircraft provided therewith

Details Heat exchanger, propulsion unit and aircraft provided therewith Heat exchanger, propulsion unit and aircraft provided therewith

F - Mech Eng,Light,Heat,Weapons

28

D

F28D 21/00 (2006.01)

Patent

CA 2615275

The invention relates to a heat exchanger (1) provided with a heat exchanger housing (4) for circulating a cooling air flow and a hot air flow therein comprising a hot air input channel (18) placed on the housing rear side for supplying the hot air flow to the heat exchanger housing and a cooling air discharge channel (9) arranged on the rear side of said heat exchanger housing for exhausting the cooling air flow therefrom, wherein said channels are concentrically shaped. Said invention also relates to a propulsion unit provided with the inventive heat exchanger, wherein the cooling air discharge channel (9) arranged in the rear part of the housing crosses the strut in such a way that the cooling air flow is exhausted behind a jet engine. An aircraft provided at least one inventive propulsion unit is also disclosed.

L'invention concerne echangeur thermique (1) comportant un boîtier d'échange thermique (4) dans lequel un flux d'air de refroidissement et un flux d'air chaud circulent, caractérisé en ce qu'il comporte un conduit d'arrivée d'air chaud (18) situé sur la face arrière du boîtier, pour amener le flux d'air chaud dans le boîtier d'échange thermique, et un conduit d'évacuation d'air de refroidissement (9) situé sur la face arrière du boîtier, pour expulser le flux d'air de refroidissement hors du boîtier d'échange thermique, lesdits conduits étant concentriques. L'invention concerne également un ensemble propulseur comportant un echangeur thermique selon l'invention, dans lequel un conduit d'évacuation d'air de refroidissement (9), situé à l'arrière du boîtier traverse le mât de manière à expulser le flux d'air de refroidissement à l'arrière du turboréacteur. L'invention concerne également un aéronef comportant au moins un ensemble propulseur selon l'invention.

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