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Troubleshooting method of engine in-position cross test

An engine and motive technology, applied in the field of aero-engine troubleshooting, can solve problems such as high cost, affecting the normal use of the engine, and long troubleshooting cycle, and achieve the effect of rapid positioning

Active Publication Date: 2014-07-30
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the engine static test device can generally only determine whether the temperature control system or the anti-surge adjustment system is faulty. The specific faulty accessories need to be eliminated one by one, that is, replace the pending faulty accessories respectively, and then re-perform the static test to determine. The troubleshooting cycle is long. , high cost, seriously affect the normal use of the engine

Method used

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  • Troubleshooting method of engine in-position cross test
  • Troubleshooting method of engine in-position cross test
  • Troubleshooting method of engine in-position cross test

Examples

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specific Embodiment 1

[0030] Specific embodiment 1: the test cable part a21 is the connection cable connecting the first side engine temperature control amplifier to the fuel flow regulator socket 13 and the second side engine fuel flow regulator 15; the test cable part b22 is to connect the first side of the aircraft The engine temperature control amplifier is connected to the anti-surge regulator socket 14 and the connecting cable of the engine anti-surge regulator 16 on the second side of the aircraft. For details, refer to image 3 .

[0031]

[0032]

specific Embodiment 2

[0033] Specific embodiment 2: The middle parts of the test cable part a21 and the test cable part b22 of two cables are combined into one and made. Considering the distance between the two engines, the length of the cable is determined to be 1750mm, and the distance between the A-end, B-end, C-end and D-end is 250mm from the intersection. One end of the test cable is the fuel flow regulator and the anti-surge regulator. Corresponding interface, one end is the corresponding interface of the temperature control amplifier, please refer to Figure 4 .

[0034]

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Abstract

The invention belongs to the field of aero-engine troubleshooting, discloses a method suitable for trouble quick locating and removing of two engines arranged on the same airplane and provides a troubleshooting method of an engine in-position cross test. Through the double-engine in-position cross test, the purpose of engine accessory trouble quick locating and removing is achieved. The feature that the two engines are arranged on the same plane, a test electric cable is designed and manufactured, the in-position cross test is carried out, a temperature control amplifier of one engine is connected with an anti-surge adjuster and a fuel oil flow adjuster of the other engine, under the situation that the temperature control amplifier or the anti-surge adjuster or the fuel oil flow adjuster is not detached, trouble quick locating is achieved, a troubleshooting cycle is greatly shortened, troubleshooting cost is lowered, and troubleshooting efficiency is improved.

Description

Technical field: [0001] The invention belongs to the field of troubleshooting of aero-engines, and the method is applicable to the rapid location and troubleshooting of two engines in the same aircraft. Background technique: [0002] The failure of the temperature control and anti-surge adjustment system of an aeroengine is one of the common engine failures. Such failures are difficult to troubleshoot, slow to locate and costly to troubleshoot. For example, when an aero-engine is tested on the ground or in the air, failures such as main engine surge, uncontrolled exhaust gas temperature (T6) after the turbine, and anti-surge fault light alarms may occur. From the analysis of the principle of the engine temperature control and anti-surge regulation system, these faults are mainly related to the faults of the three major accessories (temperature control amplifier, anti-surge regulator, fuel flow regulator). In order to determine the faulty parts in the three major accessories...

Claims

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Application Information

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IPC IPC(8): G01M15/00
Inventor 梁明莉刘忠华刘涛薛缎绒张振宇
Owner AECC AVIATION POWER CO LTD
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