Power system of single-rotor helicopter without reactive torque tail rotor

Abstract

Aiming at some practical defects of overlong tail, long power transmission distance, slower speed, poorer maneuverability and the like of a traditional helicopter which balances the rotating torque ofthe helicopter body by utilizing reverse torque tail paddles and mutual reverse rotation of double coaxial rotors, the invention provides a power system of a single-rotor helicopter without the reactive torque tail rotor and a power system of a helicopter with a thrust propeller or a tilting thrust propeller, the reactive torque tail rotor of the traditional helicopter is replaced, one rotor in the double coaxial rotors is used for balancing the rotating torque of the helicopter body, and the flying speed and maneuverability of the helicopter are improved.

Description

Technical field: [0001] The invention relates to the aviation field, in particular to a power system of a single rotor helicopter. Background technique: [0002] During the use of the helicopter, the body will rotate and lose lift, resulting in a crash. In order to balance the rotational torque of the body, the traditional helicopter uses a variable pitch propeller at its tail to balance the rotational torque of the body. In order to reduce the power consumption of the tail rotor to balance the rotational torque of the body, the lengthened tail is used to increase the leverage distance between the rotor main shaft and the tail rotor to reduce the power consumption of the tail rotor, and in order to ensure the safety of the rotor rotation, the rotor and tail A certain safety distance is required between the propellers, so the tail of the traditional helicopter is too long, the power transmission distance of the tail rotor is long, the volume ratio of the tail structure is lar...

AI Technical Summary

Problems solved by technology

In order to reduce the power consumption of the tail rotor to balance the rotational torque of the body, the lengthened tail is used to increase the leverage distance between the rotor main shaft and the tail rotor to reduce the power consumption of the tail rotor, and in order to ensure the safety of the rotor rotation, the rotor and tail A certain safety distance is required between the propellers, so the tail of the traditional helicopter is too long, the power transmission distance of the tail rotor is long, the volume ratio of the tail structure is large, the weight is high, the flight speed is relatively slow, and the maneuverability is relatively poor. Existence of tail slurry: tail slurry is noisy, easily hurts ground personnel, and tail slurry is easy to collide with other objects and be damaged, resulting in a crash accident

Traditional helicopters that use coaxial dual sets of rotors to reverse each other to balance the rotational torque of the body also need a certain safety distance between the coaxial dual sets of rotors, resulting in too long main shaft, increased flight resistance, and limited flight speed. Restrictions, relatively poor maneuverability, complex dual-rotor mechanism, and relatively difficult control

Traditional helicopters that use ducted tail rotors and generate active airflow to eject from the tail in reverse still have long tails, relatively large structural volume, relatively high weight, relatively large resistance, relatively slow speed, and relatively poor maneuverability , the lack of efficiency

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