Aircraft engine simulation starter and testing method

Abstract

The invention discloses an aircraft engine simulation starter and a test method, which belong to the technical field of aircraft and are used to solve the problems of high test cost and low safety of the current engine starting system. The starter specifically includes a frequency generating circuit and a master control circuit. The frequency generation circuit is used to simulate the speed signal on the engine and display it in real time; the master control circuit includes a switch assembly and an indicator light assembly, the switch assembly is used to simulate the engine action, and the indicator light assembly is used to display the state of the engine starting system in real time The switch assembly includes a pressure switch, a fuel valve end switch, a micro pump switch, a fuel micro switch and an overrun test switch; the indicator light assembly includes a starter generator indicator light, a fuel valve open indicator light, and a fuel valve close indicator light, micro pump indicator light, ignition coil indicator light, safety valve indicator light. The invention has the advantages of high test efficiency, safety and reliability, cost saving of test run and the like.

Description

technical field [0001] The invention mainly relates to the technical field of aircraft, in particular to a simulated starter of an aircraft engine and a test method. Background technique [0002] The finished product of the engine starting system is divided into two parts, one part is installed on the engine, this part cannot be checked by the repair shop due to the particularity of the engine, and the product quality is guaranteed by the engine manufacturer. The other part is installed on the aircraft body, and this part is overhauled by the repair shop to guarantee its repair. [0003] In the process of aircraft overhaul, after the engine is removed from the plane, the repair shop can ensure the quality of individual accessories through overhaul or overhaul for the remaining accessories and cables of the engine starting system, but lacks the technical means of comprehensive inspection. At present, the inspection method adopted by the repair shop is to start the engine dir...

AI Technical Summary

Problems solved by technology

[0005] (1) Pilot's test run inspection, the timing of the inspection is too late for the aircraft after overhaul, and if the engine starting system fails, there is a risk of damage to the engine, which directly affects the normal delivery of the aircraft;

[0006] (2) The test run stage is the customer pick-up stage, and the inspection of the engine starting system at this stage will increase the burden on the customer and prolong the pick-up period

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