Fault protection device for monitoring working condition of ignition device of engine

An ignition device and fault protection technology, applied in gas turbine devices, machines/engines, jet propulsion devices, etc., can solve problems such as inaccuracy, interference of digital and analog sampling circuits, and inability to work, achieve stable and accurate sampling, and eliminate work interference. 、Reliable effect of data reading

Active Publication Date: 2016-11-16
四川泛华航空仪表电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high voltage of the engine ignition device capacitor during charging and discharging, the strong impact interference caused by strong current and reverse negative high voltage, will greatly interfere with the logarithmic and analog sampling circuits, resulting in unstable and inaccurate sampling. can't even work

Method used

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  • Fault protection device for monitoring working condition of ignition device of engine
  • Fault protection device for monitoring working condition of ignition device of engine

Examples

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Embodiment Construction

[0017] refer to figure 1 . In a preferred embodiment described below, a fail-safe device for monitoring the working state of an engine ignition device includes: an ignition device electrically connected to an electric nozzle through a secondary high-voltage discharge terminal and a signal sampling process electrically connected through a sampling cable, Data processing comparison control circuit, wherein, the data processing comparison control circuit includes a sampling module 3, a signal processing module 4, a data processing control module 5, a display module 6, a power supply module 7, a failure protection module 8 and a reset circuit 9, and its features In that: in the data processing comparison control circuit, the sampling module 3 is connected in series with the signal processing module 4 and the data processing control module 5, the data processing control module 5 is electrically connected to the display module 6, and is electrically connected to the power supply mod...

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PUM

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Abstract

The invention discloses a fault protection device for monitoring the working condition of an ignition device of an engine, and aims at providing the fault protection device capable of effectively eliminating the interference of working circuits of the ignition device. The technical scheme of the fault protection device is as follows: in a data processing comparison control circuit, a sampling module is in series connection with a signal processing module and a data processing control module in proper sequence; the data processing control module is electrically connected to a display module and is electrically connected to a primary power supply end of the ignition device by a fault protection module; the sampling module performs signal sampling from a sampling interface of the ignition device; the signal processing module is used for carrying out compensation filtering on sampled signals and for feeding read current peak values into the data processing control module; and the data processing control module is used for carrying out data comparison, analysis and judgment on sampling frequency and/or the current peak values, for giving out a fault warning signal instruction to the display module, and meanwhile for controlling the fault protection module to disconnect a primary power supply of the ignition device, so that the device enters a fault locking state, and a starting switch loses efficacy.

Description

technical field [0001] The invention relates to a working state sampling and fault protection device for an engine ignition device, in particular to a working state sampling and fault protection device for an aerospace engine ignition device in situ or in a laboratory environment. Background technique [0002] The aero engine is the heart of the aircraft, and the aero ignition system is one of the important components of the aero engine. Due to the existence of multiple constraints in the actual operation of the engine, the calibration of the electronic control unit will become a complex project with multiple variables, multiple constraints, and different optimization objectives. The engine ignition system is an ignition source system for the main combustion chamber and the afterburner composed of an ignition device, an ignition cable and an electric nozzle. After the ignition device converts the direct current or alternating current on the aircraft into high-voltage The ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C9/00F02C7/266
CPCF02C7/266F02C9/00
Inventor 杨光明
Owner 四川泛华航空仪表电器有限公司
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