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Brake systems for aircraft and related methods

A braking system and a technology for an aircraft, applied in the field of aircraft, can solve the problems of increasing the weight of the cabin, expensive manufacturing and maintenance of the thrust reverser, reducing the fuel efficiency of the aircraft, etc.

Pending Publication Date: 2020-06-23
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

thrust reversers are therefore relatively expensive systems to manufacture and maintain
thrust reversers also add weight to the nacelle, which reduces aircraft fuel efficiency

Method used

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  • Brake systems for aircraft and related methods
  • Brake systems for aircraft and related methods
  • Brake systems for aircraft and related methods

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Embodiment Construction

[0033] In known aircraft, thrust reversers are usually used to reduce the braking distance on the runway. However, the thrust reverser needs to throttle the engine to generate reverse thrust. This throttling increases engine wear. In addition, thrust reversers generally reduce braking capacity because some reverse thrust generates lift. In some cases, if a collision with an object is about to occur, the thrust reverser may not be able to effectively (for example, may not deploy fast enough) to stop the aircraft. Generally, the thrust reverser cannot generate a negative thrust of 4-5G force and / or the thrust reverser cannot be deployed below a certain speed.

[0034] The example braking system disclosed herein can be supplemented or used in combination with the wheel brakes of the aircraft. Specifically, the example braking system disclosed herein is capable of decelerating the aircraft during landing without using a thrust reverser. Therefore, the example braking system discl...

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PUM

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Abstract

Braking systems for aircraft and related methods are disclosed. An example braking system 102 includes a fan cowl 208 having a leading edge 212 and a trailing edge 214. The braking system 102 includesa hinge assembly 216 coupled between the leading edge 212 and a fan cage 218 of an aircraft engine 110 / 112 to enable the fan cowl 208 to move between a stowed position 202 and a deployed position 204. An actuator 220 is coupled to the leading edge of the fan cowl 208, and the actuator 220 is to move the fan cowl 208 via the hinge from the stowed position 202 to the deployed position 204 in a direction away from the aircraft engine and toward a fore end of the aircraft to provide an air brake during a braking event.

Description

Technical field [0001] The present disclosure relates generally to aircraft, and more specifically to braking systems and related methods for aircraft. Background technique [0002] The aircraft uses various methods to perform braking operations during the landing event. For example, aircraft use wheel brakes. The additional braking system can be used in combination with or in addition to the wheel brake. For example, aircraft use adjustable flaps called speed brakes or spoilers located on the wings to provide resistance to the airflow to help decelerate. In some cases, the aircraft employs thrust reversers, which are used to reverse the airflow during a landing event to provide reverse thrust. Although thrust reversers are effective in supplementing wheel braking systems, thrust reversers are complex systems that typically include baskets, blocking doors, pull rods, translation and actuation systems, etc. Therefore, the thrust reverser is a relatively expensive system to man...

Claims

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Application Information

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IPC IPC(8): B64C9/32B64D29/06
CPCB64C9/32B64D29/06B64D29/08B64C7/02B64D17/80F02K1/70F02K1/66Y02T50/30Y02T50/40Y02T50/60B64C9/34B64C13/16B64C23/00F05D2220/323F05D2260/74B64C9/36
Inventor 克里斯托弗·T·亚斯科洛夫斯基史蒂文·G·麦金
Owner THE BOEING CO