A Method for Troubleshooting Start-up of Turbofan Engine Ground Test

A troubleshooting method and technology for turbofan engines, which are applied in engine testing, machine/structural component testing, measuring devices, etc., can solve problems such as long troubleshooting time, high cost, and frequent starting failures for turbofan engines.

Active Publication Date: 2018-01-09
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology

[0002] Various failures often occur in ground tests of turbofan engines, especially starting failures are more frequent. The starting process of turbofan engines is relatively complicated, involving many factors such as starter motor, starting circuit, starting oil supply, and starting peripheral equipment. It takes a long time for analysis, processing and test verification, resulting in a long time for turbofan engine troubleshooting and high cost of test verification

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  • A Method for Troubleshooting Start-up of Turbofan Engine Ground Test

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Embodiment Construction

[0021] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] In this embodiment, the starting process of the turbofan engine adopts dual redundancy control, one is time control, and the other is speed control. The speed control is the first choice. When the speed condition is insufficient, the time control plays a role.

[0023] A kind of turbofan engine ground test starting fault troubleshooting method, such as figure 1 shown, including the following steps:

[0024] Step 1: When the turbofan engine fails to start the ground test, determine whether the turbofan engine console panel switch has a setting fault. If so, perform troubleshooting for the console panel switch setting and go to step 12; otherwise, go to step 2.

[0025] Step 2: Determine whether the starter equipped with the turbofan engine starts, if yes, perform step 3, otherwise, perform step 4.

[0026] Step 3: Determine whether...

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Abstract

The invention relates to a method for troubleshooting a turbofan engine ground test start-up fault. The method firstly performs troubleshooting for the settings of the turbofan engine console panel switch for different fault conditions during the turbofan engine ground test start-up, and then performs troubleshooting for the turbofan engine. Troubleshooting of the starter equipped with the engine, troubleshooting of the fuse in the contactor box of the turbofan engine and the power supply circuit of the starter equipped with the turbofan engine Troubleshooting of the turbofan engine fuel surge valve and related circuits, and finally, troubleshooting of the peripheral circuit of the turbofan engine starter box until the turbofan engine ground test starts normally, and the turbofan engine ground test startup troubleshooting is realized. The method of the invention eliminates the startup fault of the turbofan engine ground test in a short time, saving time and cost of troubleshooting.

Description

technical field [0001] The invention belongs to the technical field of aeroengine fault diagnosis, and in particular relates to a method for troubleshooting a turbofan engine ground test startup fault. Background technique [0002] Various failures often occur in ground tests of turbofan engines, especially starting failures are more frequent. The starting process of turbofan engines is relatively complicated, involving many factors such as starter motor, starting circuit, starting oil supply, and starting peripheral equipment. It takes a long time for analysis, processing and test verification, resulting in a long time for turbofan engine troubleshooting and high cost of test verification. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention proposes a method for troubleshooting turbofan engine ground test startup faults. [0004] A method for troubleshooting turbofan engine ground test starting faults, comprising the foll...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/00
Inventor 姜凤杨天南刘岩飞范世新张凯
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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