Aircraft flap mechanism having compact large fowler motion providing multiple cruise positions

一种飞行器、襟翼的技术,应用在气动襟翼延伸机构领域

Active Publication Date: 2013-04-03
THE BOEING CO
View PDF5 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Larger fairings increase the vehicle's aerodynamic drag

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aircraft flap mechanism having compact large fowler motion providing multiple cruise positions
  • Aircraft flap mechanism having compact large fowler motion providing multiple cruise positions
  • Aircraft flap mechanism having compact large fowler motion providing multiple cruise positions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] Embodiments disclosed herein provide a mechanism with large flap Fowler motion in a compact volume. Provides kinematic and link arrangement differentials that allow initial forward or aft motion in the flaps to be relatively small and roughly parallel to the wing lower surface while driving rapid changes in angle (for the TEVC range), and after commencing TEVC range motion, Provides faster Fowler extensions with varying angles. This is critical for TEVC capability as well as mid-flap position with drooping spoilers.

[0049] As shown in the example embodiment in FIG. 1 , a pivot mechanism 10 for an aerodynamic flap 12 , hereinafter referred to as a flap, provides large Fowler motion, TEVC and droop motion. Mounted in the wing 2, the mechanism, having an upper surface 4 and a lower surface 6 including a rear beam 8, comprises a hinged support quadrilateral joint with a support beam 14 including a rear portion 16 having a An axis of rotation 18, and an axis of rotation ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

An trailing edge flap mechanism with a hinge supported quadrilateral linkage for large Fowler extension, trailing edge variable camber and drooped motion is provided. The trailing edge flap mechanism incorporates a support beam, a flap carrier beam, a first link, a second link, a connecting link and an actuation system. The actuation system is operably connected between a fixed portion of a wing structure and the first link. The trailing edge flap mechanism provides large Fowler motion and good take-off and landing flap positions compatible with drooping spoilers, and also a range of aerodynamically sealable cruise positions, all in a compact package for greatly improved cruise drag.

Description

technical field [0001] Embodiments of the present disclosure relate generally to aerodynamic flap extension mechanisms for aircraft, and more particularly to a compact operative linkage with sufficient linear motion over a small range about the retracted position, but providing large Fowler extension and rapid droop. Background technique [0002] For modern commercial jet aircraft, flaps used with drooping spoilers for takeoff and landing positions and providing a small range of cruising positions are increasingly necessary to improve efficiency. When combined with the need for large Fowler movements, the flap mechanisms required for this highly desirable performance can be deep and wide, and require large aerodynamic fairings that cause excessive cruise drag. [0003] A combination of drooping spoiler landing positions and multiple cruising positions known as "trailing cambers" has recently been introduced in commercial aircraft. Current designs have relatively small wing ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B64C9/38
CPCB64C9/16B64C9/18Y02T50/32Y02T50/30
Inventor S·萨库拉伊J·M·惠顿S·J·福克斯S·X·车
Owner THE BOEING CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products