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Method for eliminating ground test start faults of turbofan engine

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

Active Publication Date: 2016-02-03
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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  • Method for eliminating ground test start faults of turbofan engine

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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 eliminating ground test start faults of a turbofan engine. The method aims at the different ground test start faults of the turbofan engine, wherein fault elimination is set to a control board panel switch of the turbofan engine at first, then the fault elimination is started by a starter assembled in the turbofan engine, the fault elimination is carried out to a fuse in a contactor box of the turbofan engine and a starter power source power-supply circuit assembled in the turbofan engine, the elimination of start circuit faults and start ignition faults is carried out to the turbofan engine, the fault elimination is carried out to a fuel oil uprush valve and relevant circuits of the turbofan engine, and finally the fault elimination is carried out to circuits outside a start box of the turbofan engine till ground tests of the turbofan engine are started normally, so that the ground test start faults of the turbofan engine are eliminated. The method provided by the invention can eliminate the ground test start faults of the turbofan engine in a short time, so that time and fault elimination cost are saved.

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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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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