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A detachable and adjustable winglet device

A wingtip and connecting tube technology, applied in the field of aviation vehicle design, can solve the problems of small air resistance and low cost, and achieve the effects of small air resistance, high manufacturing and maintenance costs, and excellent maintainability

Active Publication Date: 2015-10-21
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device is light in weight, low in air resistance, has excellent detachability and maintainability, low life cycle cost, and solves the problem of flight multi-task adaptability

Method used

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  • A detachable and adjustable winglet device
  • A detachable and adjustable winglet device
  • A detachable and adjustable winglet device

Examples

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specific example

[0038] The present invention is described more specifically below by several examples:

example 1

[0039] Example 1: Adjusting the winglet installation scheme when the flight mission is changed

[0040] The winglet device described in the invention can be replaced with different winglet schemes before take-off. Therefore, when the mission is changed, the winglet installation scheme should be changed accordingly before take-off, so that the design advantages of the device of the present invention can be brought into full play, especially for passenger aircraft, fuel efficiency can be improved and consumption can be saved. For example, if the flight mission of a passenger plane changes from a long route to a short route, the inclination angle of the winglet should be adjusted from the vertical inclination angle to the corresponding inclination angle.

example 2

[0041] Example 2, rapid replacement of damaged winglets during emergency missions

[0042]The winglet device of the present invention adopts a modular detachable design. If the winglet is damaged during the emergency mission of the aircraft, it does not need to be repaired like the current winglet, but can be disassembled immediately for replacement, saving a lot of valuable maintenance time. At the same time, the damaged winglet can be brought back to the maintenance area for maintenance after the mission is completed, without having to be discarded and thrown away, which saves a lot of cost.

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Abstract

The invention discloses a detachable wingtip winglet device with adjustable dip angles. The detachable wingtip winglet device adopts a hollow and streamline design and is made of semitransparent light materials, and thus a light-emitting effect of a wing navigation light in the detachable wingtip winglet device is not influenced. The detachable wingtip winglet device with adjustable dip angles comprises a winglet connection drum (1), an inserting tube (2), a winglet (3) and a wingtip connection support (4), wherein the wingtip connection support (4) is connected to a winglet of a ring fixedly; a plurality of slots with oval sections are formed in the winglet connection drum (1); a long plate (6) of the inserting tube (2) is connected to the winglet (3) through bolts; in use, the winglet (3) is inserted in one slot of the winglet connection drum (1) through the inserting tube (2). Due to a modularization detachable design, the device is convenient to use and maintain; meanwhile, winglets with different dip angles can be mounted on the device.

Description

technical field [0001] The invention relates to a detachable and adjustable winglet device, which belongs to the field of aviation vehicle design. Background technique [0002] Winglets are used for subsonic aircraft, mainly including civil aviation passenger aircraft, military transport aircraft, aerial refueling aircraft, early warning aircraft and unmanned aerial vehicles. In the subsonic aircraft in the world today, some winglets are set up to improve the flow of the airflow in the span of the wing, reduce the induced drag of the wing, reduce fuel consumption, and improve economic performance. [0003] But why don't all subsonic aircraft use winglets? This involves a comprehensive range of issues. The first is the cost issue. The installation of winglets increases the design and manufacturing costs, and the installation of winglets on passenger aircraft will cost hundreds of thousands of dollars. Secondly, the aircraft performs various tasks, and the winglets can only...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C3/36B64C3/52
Inventor 魏凯李茂强龙涛
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS