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Method for initiating fan operation test

A technology for fans and engines, which is applied in the direction of temperature control using electric means, arrangement/installation of power units, temperature control using digital devices, etc., which can solve problems such as equipment aging and fan failure.

Active Publication Date: 2020-01-21
SAFRAN AIRCRAFT ENGINES SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, operating the fan in a cold atmosphere will cause the equipment to age
Forcing an operational test to run carries the risk of causing the tested fan to function outside of the fan's operating range and cause the fan to fail

Method used

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  • Method for initiating fan operation test
  • Method for initiating fan operation test
  • Method for initiating fan operation test

Examples

Experimental program
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Embodiment Construction

[0044] refer to figure 1 and figure 2 , an embodiment of the invention relates to a cooling system for at least one computer of a turbojet engine of an aircraft, the cooling system comprising said at least one computer, at least one fan and at least one data processing module MT.

[0045] This computer may be the EEC (“Electronic Engine Controller”) computer of the aircraft's Full Authority Digital Engine Controller (FADEC), dedicated to the control of the turbojet engine and the analysis of its operation. In order to dissipate the heat generated by the computer's circuitry, the EEC computer may be housed within a housing with a heat sink, for example in the form of heat sinks. Said at least one fan of the cooling system is arranged to blow air from the outside atmosphere onto the radiator to ensure cooling of the computer.

[0046] According to an embodiment, the computer is referred to as a double-layer device, and above the heat sink of the housing is mounted a plate tha...

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PUM

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Abstract

The invention relates to a method for starting operational testing of at least one fan designed to cool at least one computer of a turbojet engine of an aircraft, the method comprising the steps of: The number of flights performed since the last operation (N) is compared (E1 ) with a first threshold (y); - the number of flights performed by the aircraft since the last operation of the fan (N) is compared with a second threshold (x) (E3), the second threshold is greater than or equal to the first threshold; - Obtain an environmental parameter (T) and verify (E6) whether this parameter meets the boundary environmental conditions for operating the fan; - Control (E8) start the fan in the following cases Operational test: the number of flights (N) made by the aircraft since the last operation of the fan is greater than or equal to a first threshold (y), less than a second threshold (x), and the acquired parameters (T) verify boundary environmental conditions.

Description

technical field [0001] The subject of the present invention is the cooling of the computer of the turbojet engine of an aircraft, and more specifically a method of testing the operation of a fan for ensuring such cooling. Background technique [0002] Each turbojet engine of the aircraft comprises at least one computer, usually at least two computers, dedicated to the control of the turbojet engine and the analysis of the normal operation of the turbojet engine. thus, computers often require active cooling in order to maintain them within a temperature range where they can operate properly, for example when the aircraft is operating in hot air or when the aircraft is in an unladen or low speed phase of operation such as a long taxi . [0003] Such cooling can be ensured by using one or more fans ("blowers") to blow ambient air onto the heat sink associated with the computer. [0004] Depending on the environmental conditions experienced by the aircraft, these fans cannot b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/048
CPCG05B19/048G05B2219/2614B64D33/00G05B2219/31455G05D23/1917G07C5/08
Inventor 雅尼克·斯奇尼阿诺·罗丹
Owner SAFRAN AIRCRAFT ENGINES SAS