Cooling system on the basis of suction of a boundary layer
AssigneeAirbus Deutschland GmbH
InventorsAndreas Westenberger, Martin Arendt, Till Marquardt, Lars Frahm, Geza Schrauf
Life of this patent
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Abstract
A cooling system on board an aircraft includes a device for removing by suction a boundary layer, and a heat exchanger through which flows the boundary layer air that has been removed by suction. Cooling by way of a ram air channel can be reduced or entirely stopped, depending on the flight phase, such that the air drag of the aircraft and thus the fuel consumption can be reduced.
Claims12
A cooling system for an aircraft, the cooling system comprising:
- a suction unit for removing by suction boundary layer air by suction air apertures from a flow-critical surface of the aircraft;
- a heat exchanger for cooling a medium, through which heat exchanger the boundary layer air that has been removed by suction flows;
- and
- a ram air channel comprising a control device and a ram-air channel flap regulated by the control device, wherein the control device and the ram-air channel flap are adapted to regulate an airstream of ram air flowing through the ram air channel;
- wherein the boundary layer air that has been removed by suction and the ram air are used as a coolant that flows through the heat exchanger.
An aircraft comprising a cooling system, the cooling system comprising:
- a suction unit for removing by suction boundary layer air by suction air apertures from a flow-critical surface of the aircraft;
- a heat exchanger for cooling a medium, through which heat exchanger the boundary layer air that has been removed by suction flows;
- and
- a ram air channel comprising a control device and a ram-air channel flap regulated by the control device, wherein the control device and the ram-air channel flap are adapted to regulate an airstream of ram air flowing through the ram air channel;
- wherein the boundary layer air that has been removed by suction and the ram air are used as a coolant that flows through the heat exchanger.
A method for cooling a medium in an aircraft, comprising:
- removing by suction boundary layer air from a flow-critical surface of the aircraft;
- regulating an airstream flowing through a ram air channel;
- making the boundary layer air that has been removed by suction and the airstream flowing through the ram air channel flow through a heat exchanger for cooling a medium;
- and
- using the boundary layer air removed by suction and the air stream flowing through the ram air channel as a coolant for the heat exchanger.
Dependencies are inferred from the claim text.