Method of On-Line Detecting the Characteristics of Aircraft Engine Anti-icing System

Abstract

The invention provides a method for performing online detection on characteristic of an ice-preventing system of an aircraft engine, and aims to provide a detecting method which has advantages of simple operation, no requirement for an external air source and visual display interface. The method is realized through a technical solution which is characterized in that an atmospheric data tester is provided with a pressure pump and a vacuum pump; the atmospheric data tester is connected with the air path of an icing signal device through an air pipe; an automatic device is electrically connected with an icing signal device and respectively inputs an output signal to an icing state control circuit which is connected with an indicating lamp circuit, an icing signal returning circuit, a delay signal circuit, an icing signal device power supply circuit which displays a corresponding voltage value through a digital voltmeter; and the atmospheric data tester outputs a pressure signal to the icing signal device and simulates a pressure condition in icing through the pressure signal. The automatic device respectively inputs an icing signal and an ice melting signal of the engine to the indicating lamp circuit correspondingly through the device and the circuit; and a heating current and the operating state of the ice-preventing system of the aircraft engine are displayed through a digital ammeter.

Description

technical field [0001] The invention mainly relates to a method for on-line detection of characteristics of an aircraft engine icing signaler and an automatic device. Background technique [0002] In order to ensure the reliable operation of the engine, the aircraft anti-icing system needs to be switched on when the engine freezes. In the aircraft engine anti-icing system, the icing signal and the automatic device are the control devices that constitute the aircraft engine anti-icing system. The icing annunciator is used to signal when the engine is icy. The automatic device turns on the icing signal light of the engine, turns on the warmer power supply of the icing annunciator, controls the icing annunciator to turn off the heating power supply after a certain time delay after thawing. In order to ensure the reliable operation of icing annunciators and automatic devices, it is necessary to carry out on-line detection on a regular basis. [0003] At present, the methods u...

AI Technical Summary

Problems solved by technology

This method uses a pointer instrument, the display is not intuitive, and the operation is complicated

At present, there is no method for online detection of aircraft engine icing signal and automatic device characteristics in China

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