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Aircraft engine EEC ground maintenance equipment

A technology for aircraft engines and maintenance equipment, which is applied in the direction of engine testing, machine/structural component testing, instruments, etc. It can solve the problems of inability to independently complete aircraft engine status testing and lack of testing equipment, so as to reduce the number of return to the factory for maintenance, The effect of ensuring flight safety and ensuring reliability

Pending Publication Date: 2022-05-17
成都航利装备科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the blockade of foreign technology, there is no corresponding testing equipment in the domestic market, and the country cannot independently complete the state testing of aircraft engines

Method used

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  • Aircraft engine EEC ground maintenance equipment
  • Aircraft engine EEC ground maintenance equipment
  • Aircraft engine EEC ground maintenance equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] When the device directly receives 28V DC power from the aircraft, it directly supplies power to the signal transfer box and DCU through the power supply protection module. When the input direct current is lower than 28V or fluctuates, the voltage stabilizing module stabilizes the output voltage at 28V.

[0054] An aircraft engine EEC ground maintenance equipment, comprising a processing device, a signal transfer box and a cable; the aircraft engine, the signal transfer box and the processing device are connected through a cable at one time; one end of the signal transfer box is respectively connected to the aircraft engine The EEC is connected to the DCU, and the other end of the signal transfer box is connected to the processing device through a cable.

[0055] The signal transfer box includes a device housing and a signal acquisition module, a communication module, and a power supply protection module arranged in the equipment housing; one end of the signal acquisitio...

Embodiment 2

[0058]When the device takes power from 220V AC, it supplies power to the signal acquisition module and DCU through the voltage conversion module, overvoltage protection module, overcurrent protection module, and voltage stabilization module.

[0059] The function of the voltage conversion circuit is to convert 220V alternating current to 28V direct current to supply power to the DCU; the function of the middle input overvoltage protection module is that when the input is greater than 29V, the overvoltage protection module has no output, and the power indicator light 1 goes out; The function of the input overcurrent protection module is that when the input direct current is greater than 2A, the overcurrent protection circuit has no output; and when the input direct current is lower than 28V or fluctuates, the voltage stabilizing module stabilizes the output voltage at 28V.

[0060] An aircraft engine EEC ground maintenance equipment, comprising a processing device, a signal tran...

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PUM

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Abstract

The invention relates to ground maintenance equipment for an EEC of an aircraft engine. The ground maintenance equipment comprises a packaging box, and a processing device, a signal switching box and a cable which are arranged in the packaging box, the processing device is an upper computer, the cable is used for connecting the upper computer, the signal switching box and an aircraft engine, and one end of the signal switching box is connected with an EEC and a DCU of the aircraft engine and used for collecting EEC and DCU data; and the upper computer is connected with the other end of the signal switching box through a cable, and is used for monitoring the operation data of the EEC and the DCU of the aircraft engine in real time and modifying the operation data of the DCU. The in-situ detection method is used for carrying out in-situ detection on the aircraft engine, and the in-situ detection method has important significance in guaranteeing the reliability of the engine, improving the performance of the engine, reducing the number of times of returning the engine to a factory for maintenance, ensuring the flight safety and the like.

Description

technical field [0001] The invention relates to the field of aircraft engine ground maintenance, in particular to an aircraft engine EEC ground maintenance equipment. Background technique [0002] Airplanes fly at different altitudes and speeds. In order to maintain a given working state of the engine during flight, or to change the working state according to the required rules, the engine must be controlled. All of these can only be done by automatic control system. [0003] With the development of aviation technology, the requirements are constantly improving, and the control system has also developed from the initial automatic speed regulator for changing the propeller pitch of the piston engine to the control system of the gas turbine engine's speed, temperature, oil volume, starting, acceleration, etc., and Anti-surge devices to ensure the safe operation of the engine, over-temperature and over-rotation limiters, etc. Moreover, due to the improvement of engine perform...

Claims

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Application Information

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IPC IPC(8): G01M15/02
CPCG01M15/02
Inventor 曾德海邓林王峰周浩锐郑衎
Owner 成都航利装备科技有限公司