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Aircraft with a preheating device for a fluid/fluid heat exchanger thereof

A technology of heat exchanger and preheating device, which is applied in the direction of heat exchange equipment, aircraft power unit, turbine/propulsion device fuel heating, etc.

Inactive Publication Date: 2012-01-11
AIRBUS OPERATIONS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the risk of ice crystal buildup shifts to the second heat exchanger

Method used

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  • Aircraft with a preheating device for a fluid/fluid heat exchanger thereof
  • Aircraft with a preheating device for a fluid/fluid heat exchanger thereof
  • Aircraft with a preheating device for a fluid/fluid heat exchanger thereof

Examples

Experimental program
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Embodiment Construction

[0020] image 3 Only a part of the heat exchanger between two fluids, in particular hydrocarbon fuel and oil, is shown schematically. The heat exchanger comprises a chamber 20 in which oil flows through conduits 22 in which hydrocarbon fuel flows. To facilitate heat exchange, a heat exchanger includes multiple narrow tubes.

[0021] According to one embodiment, the conduit is of circular cross-section with diameter D.

[0022] The heat exchanger is used in particular for the motorization of aircraft, the hydrocarbon fuel is used for the motorization system of the aircraft and the oil is used for cooling. However, not limited to oils and hydrocarbon fuels, two fluids may be suitable, one of which flows in narrow ducts of the heat exchanger which may contain solid components capable of melting like ice crystals.

[0023] The inlet and outlet for oil and the outlet for hydrocarbon fuel are not described in detail since they are well known to those skilled in the art and they m...

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PUM

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Abstract

The invention aims at providing an aircraft. The aircraft includes a heat exchanger between, on the one hand, a first fluid that flows into the narrow pipes (22) of the exchanger and that is able to contain solid elements that can melt, and, on the other hand, a second fluid to be cooled. The heat exchanger includes a device for preheating the first fluid upstream from the pipes (22) of the exchanger, a number of pipes arranged in at least one plane that is secant to the direction of flow of the first fluid, whereby the spacing between two adjacent pipes is suitable for retaining the solid elements of large dimensions and for allowing them to pass only when they have melted at least partially.

Description

technical field [0001] The present invention relates to a preheating device for fluid heat exchangers / aircraft fluids, in particular for hydrocarbon fuels / oils of aircraft engines. Background technique [0002] The aircraft includes a nacelle and at least one propulsion system. According to one widely used embodiment, the propulsion system is suspended under the wing by wing struts. More generally, the propulsion system is connected to the nacelle by wing struts. [0003] The propulsion system consists of a turbine with a motor cooling circuit in which a heat transfer fluid (or cooling fluid), especially oil, flows. [0004] The turbine is supplied with hydrocarbon fuel by means of a hydrocarbon fuel circuit extending from an oil tank provided at the nacelle. [0005] In some cases, multiple cooling sources can be used to cool the oil of the turbine, especially through a hydrocarbon fuel / oil heat exchanger at the motor cooling circuit, and hydrocarbon fuel is used as the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D13/06
CPCF28F19/006F02C7/224F28D7/16B64D33/00F28D2021/0021F28D2021/0089F28D7/1623
Inventor 皮埃尔·纪尧姆帕特里克·莱尔
Owner AIRBUS OPERATIONS GMBH