HEAT EXCHANGER AND TURBINE ENGINE COMPRISING SUCH AN EXCHANGER

The invention relates to a heat exchanger (10) for heat-exchange between a first fluid and a second fluid, comprising a membrane separating the two fluids and a heat-conductive element (17) in thermal contact with the membrane and with the first fluid, characterised in that said heat-conductive elem...

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Bibliographische Detailangaben
Hauptverfasser:	BOUDSOCQ, BENJAMIN, AOUIZERATE, GILLES YVES, GAUTHIER, GERARD PHILIPPE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS AIRCRAFT ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT AVIATION BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS COSMONAUTICS DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION EQUIPMENT FOR FITTING IN OR TO AIRCRAFT FLYING SUITS GAS-TURBINE PLANTS HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING PARACHUTES PERFORMING OPERATIONS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a heat exchanger (10) for heat-exchange between a first fluid and a second fluid, comprising a membrane separating the two fluids and a heat-conductive element (17) in thermal contact with the membrane and with the first fluid, characterised in that said heat-conductive element (17) moves between an active position and an inactive position, such that the capacity of heat exchange with the first fluid is weaker in the inactive position than in the active position. The exchanger is applied, in particular, for the cooling of fluid in the secondary stream of a turbofan. L'invention porte sur un échangeur de chaleur (10) entre un premier fluide et un second fluide, comprenant une membrane séparant les deux fluides et un élément (17) conducteur de chaleur en contact thermique avec la membrane d'une part et le premier fluide d'autre part, caractérisé par le fait que ledit élément (17) conducteur de chaleur est mobile entre une position active et une position inactive, de telle manière que la capacité d'échange de chaleur avec le premier fluide est plus faible dans la position inactive que dans la position active. L'échangeur est appliqué en particulier au refroidissement de fluide dans la veine secondaire d'un turboréacteur multi flux.