Method for highly reliably eliminating slow-down stall fault of airplane

Abstract

The invention introduces a method for highly reliably eliminating a slow-down stall fault of an airplane, and solves the slow-down stall fault of a Cirrus SR20 airplane. The method includes carrying out TCM IO-360-ES engine main pump performance screening, and determining whether to perform replacement based on the stability of a slow-down operating point; carrying out the optimal setting of the optimal reference working point of the engine in a normal slow-down state for the purpose of reducing the influence of an auxiliary pump on the main pump; in the practical operation, monitoring and checking the comprehensive performance of the fuel system of the engine for the purpose of controlling the engine performance in real time. The method can conveniently monitor the deviation condition ofthe reference working point of the main pump and control the performance of the engine in real time, can set the parameters based on rules, eliminates the fault properly, and improves the reliabilityof eliminating the slow-down stall fault of the SR20 airplane.

Description

technical field [0001] The invention relates to an aircraft maintenance technology, in particular to a method for eliminating the slow parking failure of an aircraft with high reliability, and more particularly to a method for eliminating the slow parking failure of a Cirrus SR20 aircraft. Background technique [0002] The SR20 aircraft produced by Cirrus Design Company of the United States is known as the "BMW in the air". It adopts the composite material structure of the whole aircraft and is equipped with a parachute system. Wide range of applications, Cirrus's SR series aircraft has more than 6,000 aircraft in the world. [0003] The Cirrus SR20 aircraft is equipped with the IO-360-ES aviation piston engine produced by the American TCM company. During operation, the engine often fails to stop at idle on the ground. Come a lot of psychological pressure. [0004] There are two fuel supply pumps in the Cirrus SR20 aircraft and engine fuel system. One is the electric fuel...

AI Technical Summary

Problems solved by technology

Idle parking is an inherent failure of Cirrus SR20 aircraft. Although the number of Cirrus SR series aircraft in the world has exceeded 6,000, this problem has not been effectively solved for many years; TCM, as a global aviation piston engine manufacturing company, its The product is not uniquely used on Cirrus SR series aircraft, and mostly uses engine fuel injection systems with similar principles, but TCM has not revealed the mechanism of frequent idle stop failures during engine operation

Due to the unknown cause of the failure, frequent engine slow-down failures in operation practice have brought huge psychological pressure to the pilots, and maintenance technicians can only replace a large number of related components of the fuel system on the failed engine, which has brought huge manpower and material resources. loss, but also bring greater flight safety risks

However, the failure mechanism is not clear, and it is difficult to carry out risk assessment on the probability of engine parking in the air. Based on safety considerations, the airworthiness supervision department of the government suspended its SR20 fleet in response to the frequent engine ground slow parking of the SR20 fleet of an aviation operation unit. operation until effective measures are taken

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