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Method for eliminating horizontal flight resistance of vertical takeoff and landing aircraft rotor

A vertical take-off and landing, aircraft technology, applied in the field of aircraft, can solve problems such as resistance and vibration, achieve smooth transition, simplified flight control, and good reliability

Inactive Publication Date: 2017-10-13
KUNMING QIAOYI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to propose a method for eliminating the horizontal flight resistance of the rotor of the vertical take-off and landing aircraft, according to the requirements of the flight conditions Change the aerodynamic shape to eliminate flight resistance, improve rotor lift, avoid rotor vibration, and improve self-sustaining characteristics; make aircraft rotors effectively compatible with vertical take-off and landing horizontal flight conditions, coordinate flight mechanisms, simplify structures, reduce costs, improve safety and reliability sex and adaptability

Method used

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  • Method for eliminating horizontal flight resistance of vertical takeoff and landing aircraft rotor
  • Method for eliminating horizontal flight resistance of vertical takeoff and landing aircraft rotor
  • Method for eliminating horizontal flight resistance of vertical takeoff and landing aircraft rotor

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Embodiment 1

[0034] Embodiment 1: The method for eliminating the horizontal flight resistance of the vertical take-off and landing aircraft rotor is: adopt a group of rotor blades that can be fully deployed and fully retracted in flight, and allow the rotor blades to rotate positively with the drive shaft when the aircraft takes off and lands , so that all the blades are fully expanded to generate the maximum lift. When the aircraft is flying horizontally, the rotor blades are fully retracted and deformed into a shape with little air resistance. The centrifugal force and aerodynamic force are used to automatically adjust the rotor blades according to the flight conditions. The working state of the vertical take-off and landing aircraft eliminates the horizontal flight resistance of the rotor. The rotor blades automatically open and close according to the flight conditions. When the aircraft takes off and lands vertically, the centrifugal force of the drive shaft is used to drive the rotor b...

Embodiment 2

[0037] Embodiment 2: The method for eliminating the horizontal flight resistance of the vertical take-off and landing aircraft rotor is: adopt two groups of rotor blades with opposite directions of rotation and can fully expand and fully retract in flight, and allow the two groups of rotor blades to rotate when the aircraft takes off and lands. With the positive rotation of the drive shaft, all the blades are fully expanded to generate the maximum lift. When the aircraft is flying horizontally, the two sets of rotor blades are completely retracted and deformed into a shape with little air resistance. The flight condition automatically adjusts the working state of the rotor blades to eliminate the horizontal flight resistance of the vertical take-off and landing aircraft rotor. The rotor blades automatically open and close according to the flight conditions. When the aircraft takes off and lands vertically, the centrifugal force of the drive shaft is used to drive the rotor blad...

Embodiment 3

[0040]Embodiment 3: the method for eliminating the horizontal flight resistance of the vertical take-off and landing aircraft rotor is to adopt a group of rotor blades that can be expanded and retracted. The shaft rotates forward to form lift. When the aircraft is flying horizontally, a group of blades of the retractable rotor are retracted in reverse to reduce air resistance and act as a fixed wing. The working state of the retractable rotor is automatically opened and closed according to the flight conditions. When the aircraft takes off and lands, the drive shaft drives a group of blades of the retractable rotor to automatically expand and rotate forward with the drive shaft. When flying, the drive shaft is locked to use the head-on A set of blades of the retractable rotor is reversely retracted by the blowing of the airflow. In the case of an emergency crash of the aircraft, the retractable rotor blades spin and expand in the positive direction under the blowing of the upw...

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Abstract

The invention provides a method for eliminating the horizontal flight resistance of a vertical takeoff and landing aircraft rotors, and belongs to the technical field of aircrafts. A set of rotor blades which can be fully unfolded and fully folded during flight, the rotor blades positively rotate with a driving shaft during the takeoff and landing of the aircraft to make all the blades fully unfold in order to produce a maximum lift force, the aircraft horizontally flies to make the rotor blade completely folded and deformed in order to form a shape having a very small air resistance, the working state of the rotor blades can be automatically adjusted according to the flight condition by using a centrifugal force and air power to eliminate the horizontal flight resistance and vibration of the vertical takeoff and landing aircraft rotor, and the rotor blades automatically unfold and fold according to the flight condition to make the pneumatic profile of the rotor automatically change according to the flight condition in order to realize the natural transition between the working states of the rotor in vertical takeoff and landing and horizontal flight modes. The method has the advantages of mechanism coordination, simple structure, low cost, high reliability and good adaptability, and can be widely applied to the fields of manned aircrafts or unmanned planes.

Description

technical field [0001] The invention relates to a method for eliminating horizontal flight resistance of a vertical take-off and landing aircraft rotor, and belongs to the technical field of aircraft. Background technique [0002] Manned aircraft can be divided into two categories: fixed wing and rotary wing. Fixed wing is commonly used in horizontal take-off and landing aircraft (such as jet airliners), while rotary wing is commonly used in vertical take-off and landing aircraft (such as helicopters). As far as the technical level has been reached so far, fixed-wing aircraft can fly at high speed and are easy to operate, but they need to rely on runways to take off and land. Rotary wing aircraft can take off and land vertically without relying on runways, and has strong adaptability, but the mechanism is out of balance, the control is complicated, the flight speed is slow, and the fuel efficiency is low. [0003] At present, there are still some insurmountable inherent def...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C27/37B64C27/467B64C27/50
CPCB64C27/37B64C27/467B64C27/50
Inventor 杨卫华
Owner KUNMING QIAOYI SCI & TECH CO LTD
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