Multi-propeller heating and balancing method of propeller-driven aircraft

Abstract

The invention relates to a multi-propeller heating and balancing method of a propeller-driven aircraft. The method comprises the following steps of: forming propeller heating elements on every three engines into a group and heating propellers on the engines respectively according to an sequence of 1, 2, 3; 2, 3, 4; 1, 3, 4 and 1, 2, 4, wherein the heating cycling time is controlled by a propeller heating balance controller, when atmosphere temperature is +5 to -12 DEG C, the heating time is 39s, and the power-down time is 80s, and when the atmosphere temperature is -12 to -55 DEG C, the heating time is 84s, and the power-down time is 92s so as to guarantee the propellers and rectifying covers thereof not to ice; when the aircraft enters an icing area, switching on a propeller heating switch on a control board on the top of a driver so that an indication green light is lightened when the propeller on the control board on the top of the driver is normally heated, and heating the propellers on the engines by a propeller heating controller according to received atmosphere temperature so as to achieve the deicing effect.

Description

Technical field: [0001] The invention relates to a multi-engine propeller heating and balancing method for a propeller aircraft, which belongs to the technical field of control. According to the received information, the method can automatically implement different time-sequence cycle heating controls on the multi-engine propellers according to different temperature zones. Background technique: [0002] The propeller heating of traditional propeller aircraft is based on the signal provided by the icing signal light. The pilot manually controls the two generators to heat the propellers of the four engines. The heating time is completed by the timing mechanism DS-20. [0003] According to the aircraft development requirements of a certain type of four propeller engines, due to the improvement of the performance of the generator, the propeller blades are changed from metal blades to composite material blades. Single-phase 115V power supply is generally used for heating a single...

AI Technical Summary

Problems solved by technology

[0005] 2) The heating time does not meet the heating requirements of the composite propeller

[0006] 3) Poor maintainability

If there is a fault in the propeller energizing and heating circuit of the original propeller aircraft, the system cannot judge the fault by itself, and can only manually troubleshoot the heating circuit one by one, resulting in a waste of manpower and time

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