Novel embedded ducted propeller driven blade

A propeller-driven, embedded technology, applied in the direction of propellers, motor vehicles, unmanned aircraft, etc., can solve the problems of short life, poor mechanical performance of blades, low reliability, etc., to achieve high thrust, light structure weight, The effect of improving aerodynamic efficiency

Pending Publication Date: 2019-02-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The blade materials generally go through processes such as wood, metal, and aluminum alloy. Traditional blade materials have many disadvantages. For example, the mechanical properties of metal blades are relatively poor, and the life span is also short under the action of alternating loads. , Disadvantages of low reliability

Method used

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  • Novel embedded ducted propeller driven blade
  • Novel embedded ducted propeller driven blade
  • Novel embedded ducted propeller driven blade

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] The purpose of the present invention is to provide a novel blade driven by an embedded ducted propeller to solve the problems existing in the prior art.

[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] This embodiment provides a novel blade drive...

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Abstract

The invention discloses a novel embedded ducted propeller driven blade which comprises a blade part, an embedded ducted propeller and a blade root connector, wherein the embedded ducted propeller is arranged at a blade tip of the blade part; the blade root connector is arranged at a blade root of the blade part; the blade root connector is connected with a main rotor shaft; the embedded ducted propeller comprises vanes, a fairing, a hub and an embedded duct; the hub is arranged in the center of the embedded duct; the fairing is arranged at the top end of the hub; the vanes are distributed in an annular space formed by the embedded duct and the hub; one end of each vane is connected with the hub; the other ends of the vanes are slidingly connected with a slide rail circumferentially arranged on an inner wall of the embedded duct; the hub is internally provided with a driving device; and the vanes are driven by the driving device to rotate. According to the novel embedded ducted propeller driven blade, a complicated and cumbersome mechanical transmission system and a reactive torque system can be cancelled; the weight efficiency of a helicopter is improved; the rotor performance is improved at the same time; and vibration and noise are inhibited.

Description

technical field [0001] The invention relates to the technical field of aviation equipment, in particular to a novel blade driven by an embedded ducted propeller. Background technique [0002] In recent years, due to its unique flight characteristics, helicopters have advantages such as vertical take-off and landing, and air hovering. As the main source of lift, the rotor is also the main control surface for helicopter flight. Therefore, the design of helicopter rotor blades is becoming an important research direction in helicopter research, and it can also provide important guidance for the design of new configuration helicopters in the future. It is against this background that it is particularly important to carry out research work on new blade design. [0003] At present, the types of helicopters are divided into mechanically driven and jet-driven helicopters according to the different ways of driving the rotors. Mechanically driven helicopters mainly include single-rot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C11/18B64C11/14B64C11/04
CPCB64C11/04B64C11/14B64C11/18B64U50/19B64U50/14
Inventor 陈华健徐国华史勇杰李腾
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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