Aircraft propulsion assembly comprising air-liquid heat exchangers
AssigneesSafran Aircraft Engines, Safran Nacelles
InventorsSébastien Oriol, Mohamed-Lamine Boutaleb, Vincent Jean-François Peyron
Life of this patent
Estimating the term…
Abstract
An aircraft propulsion assembly includes a turbine engine surrounded by a nacelle with an annular air-intake lip extending around the turbine engine by two annular walls, inner and outer, respectively, intended for being swept across by air flows at least when the aircraft is in flight. The inner and outer walls each includes or supports at least one network of pipes forming heat exchangers. The inner wall pipe network having liquid outlet connected with a liquid intake of the outer wall pipe network. The propulsion assembly further includes means for circulating the liquid, connected to at least one liquid intake of the network of pipes of the inner wall.
Claims10
A propulsion assembly for aircraft, comprising a turbomachine surrounded by a nacelle comprising an annular air intake lip extending around the turbomachine by two annular walls, inner and outer, respectively, configured to be swept across by air flows at least when the aircraft is in flight, wherein:
- said inner and outer walls each comprises or supports at least one network of pipes configured to transport a liquid in contact with said inner wall or said outer wall to form air-liquid heat exchangers respectively inner and outer, the pipes of each inner or outer heat exchanger being connected in parallel with each other,
- a network of pipes of the inner wall having at least one liquid outlet connected in series with at least one liquid intake of a network of pipes of the outer wall, and
- the propulsion assembly comprises means for circulating the liquid, connected to at least one liquid intake of a network of pipes of the inner wall for its liquid supply, and connected to at least one liquid outlet of the network of pipes of the outer wall for the recovery of the liquid.
Dependencies are inferred from the claim text.