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Outer duct of ducted fan and unmanned aerial vehicle

A ducted fan and external ducted technology, used in unmanned aerial vehicles, motor vehicles, aircraft parts, etc., to achieve the effect of optimizing the front and rear flow fields

Inactive Publication Date: 2019-03-29
SF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, such ducted fans for model airplanes often do not undergo detailed aerodynamic design, and mainly focus on completing specific short-time performance tasks

Method used

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  • Outer duct of ducted fan and unmanned aerial vehicle
  • Outer duct of ducted fan and unmanned aerial vehicle
  • Outer duct of ducted fan and unmanned aerial vehicle

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Embodiment Construction

[0024] 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. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0025] Such as figure 1 As shown, it is a perspective view of the outer duct of the ducted fan described in the embodiment of the present invention

[0026] Such as figure 2 Shown is the front view of the outer duct of the ducted fan described in the embodiment of the present invention.

[0027] Such as image 3 shown, is figure 2 Sectional view along line A-A.

[0028] Such as Figure 1 ~ Figure 2 As shown, the outer duct 1 of a ducted fan described in the embodiment of the present i...

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Abstract

The invention discloses an outer duct of a ducted fan. The outer duct comprises an outer duct wall and an inner duct wall, the cross section at the axis of the outer duct is in an airfoil shape, and amean camber line of the airfoil shape protrudes towards the central axis. The invention also discloses an unmanned aerial vehicle. The unmanned aerial vehicle comprises a vehicle body and the ductedfan outer duct arranged on the vehicle body. The outer duct of the ducted fan can effectively optimize front and back flow fields of the ducted fan, so that the outer duct provides a considerable thrust.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular, to a ducted fan outer duct and an unmanned aerial vehicle. Background technique [0002] In recent years, with the increasing popularity of small aircraft such as drones, the design of the ducted fan (Ducted Fan), which is an important power system for flight, has also attracted attention. Here, the ducted fan refers to an aircraft propulsion device in which the propeller is located in the duct, and the external structure of the device is composed of the outer duct. This structure can effectively provide the required speed and pressure for the propeller, and can effectively reduce the induced resistance of the blade tip, provide an optimized incoming flow field, and block noise diffusion. At present, ducted fans are widely used in civil aviation airliners, private commercial airliners, military aircraft, hovercraft and other fields, and most of them are in the tho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C11/00
CPCB64C11/001B64U50/14
Inventor 陈方豪
Owner SF TECH