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Propeller, power assembly and aircraft

A technology for power components and propellers, applied in propellers, aircraft, rotorcraft, etc., can solve the problems of low efficiency and large propeller resistance, and achieve the effect of reducing resistance, increasing maximum propulsion, and improving flight performance

Inactive Publication Date: 2018-11-16
中山市朗宇模型有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a propeller, a power assembly and an aircraft, which are used to solve the technical problems of large propeller resistance and low efficiency in the prior art

Method used

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  • Propeller, power assembly and aircraft
  • Propeller, power assembly and aircraft
  • Propeller, power assembly and aircraft

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] See figure 1 with figure 2 The present invention provides a propeller. In this embodiment, the propeller can be a forward propeller or a reverse propeller. The so-called forward propeller refers to a propeller that rotates clockwise to generate lift when viewed from the perspective of the aircraft; , Refers to the propeller that rotates counterclockwise to generate lift from the perspective of the aircraft. The structure of the forward propeller and the reverse propeller are mirror-symmetrical.

[0025] The propeller i...

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PUM

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Abstract

The invention provides a propeller, a power assembly and an aircraft. The propeller comprises a propeller seat and propeller blades; at a first threshold, an attack angle is 14.09 + / - 2.5 degrees, thechord length is 52.21 + / - 5 mm, and the first threshold is 40% from the center of the propeller to the radius of a propeller disc; at a second threshold, an attack angle is 7.92 + / - 2.5 degrees, thechord length is 40.4 + / - 5 mm, and the second threshold is 70% from the center of the propeller to the radius of the propeller disc; and at a third threshold, an attack angle is 5.72 + / - 2.5 degrees,the chord length is 24.57 + / - 5 mm, and the third threshold is 97% from the center of the propeller to the radius of the propeller disc. Compared with a related technology, the propeller, the power assembly and the aircraft have the advantages that the resistance to the propeller in the rotating process can be reduced, and the flying performance can be improved.

Description

Technical field [0001] The invention relates to the technical field of propellers, in particular to a propeller, a power assembly and an aircraft. Background technique [0002] As an important key component of the aircraft, the propeller on the aircraft is used to convert the rotation of the shaft of the motor or engine into thrust or lift. Those skilled in the art have discovered that the contour shape of the blades of the propeller in the prior art leads to high flight resistance and low efficiency, resulting in low flight speed and short flight distance of the aircraft, which seriously affects the flight performance of the aircraft. [0003] Therefore, it is necessary to improve the existing technology to provide a new propeller. Summary of the invention [0004] The invention provides a propeller, a power assembly and an aircraft, which are used to solve the technical problems of large resistance and low efficiency of the propeller in the prior art. [0005] In order to solve th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C11/18B64C11/20B64C27/467B64C27/473
CPCB64C11/18B64C11/20B64C27/467B64C27/473
Inventor 翟占超金功财金功华
Owner 中山市朗宇模型有限公司