Braking system with selectable airplane brake mode

A braking system, aircraft technology, applied in aircraft braking arrangement, control mechanism, vehicle components and other directions, can solve the problem of not being able to choose the braking method

Inactive Publication Date: 2016-08-31
XIAN AVIATION BRAKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiency that the braking mode cannot be selected in the prior art, the present invention proposes a braking system capable of selecting the aircraft braking mode

Method used

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  • Braking system with selectable airplane brake mode

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Embodiment Construction

[0019] The present embodiment is an optional braking system for a single wheel and double braking of an aircraft. Such as figure 1 shown. Described braking system is conventional hydraulic control. The main landing gear is equipped with a brake wheel, and the brake wheel has two brake devices, which are single-wheel double brake wheels. The brake disc of the brake device is made of carbon-carbon composite friction material.

[0020] The two braking devices are respectively a small braking device and a large braking device. The small number of brake discs of the small brake device makes the axial size of the heat storage small, so it is called a small brake device; the number of brake discs of the large brake device is large, so that the axial size of the heat store is large, so it is called a small brake device. Big brakes. Both the small braking device and the large braking device are disclosed in the invention creation with application number 201610281025.2.

[0021] T...

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Abstract

A braking system with a selectable airplane brake mode comprises a hydraulic brake valve, a hydraulic control valve, an electro-hydraulic servo valve, a control box and an airplane wheel speed sensor, wherein the control box, the electro-hydraulic servo valve and the airplane wheel speed sensor form a brake anti-slip control part. A small brake apparatus is selected to run through the hydraulic control valve so as to achieve partial braking of airplane wheels or a small brake apparatus and a big brake apparatus are selected to run simultaneously so as to achieve all braking of airplane wheels. A hydraulic pipeline for the braking system output to an airplane wheel brake apparatus is divided into a small brake apparatus hydraulic pipeline and a big brake apparatus hydraulic pipeline, wherein the small brake apparatus hydraulic pipeline keeps unblocked, and on-off of the big brake apparatus hydraulic pipeline is controlled by a control device so as to achieve selection of the airplane brake mode; the problems that an existing single-wheel single-side-brake carbon brake disc has serious abrasion and the service life is short are solved; the service life of the carbon brake disc is prolonged, and the economic benefit of the carbon brake disc is improved.

Description

technical field [0001] The invention relates to an aircraft wheel brake system, in particular to a brake control system with single-wheel double brakes and taxi brake selection based on brake pressure. Background technique [0002] Compared with steel brakes, aircraft carbon brakes have the advantages of light weight, wear resistance, high specific heat, and non-bonding at high temperatures because the brake discs are completely made of carbon-carbon composite friction materials, which significantly improves the technical performance and reliability of aircraft use. Safety, maintenance and economy, so it is widely used in modern aircraft. Carbon brakes are especially suitable for high-energy braking situations, and their excellent friction and wear characteristics endow carbon brake discs with durable qualities. However, after the carbon brake was put into field operation, it was found that the service life of the carbon brake disc could not reach the given life value of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C25/44B60T8/171B60T8/32B60T13/68
CPCB60T8/171B60T8/325B60T13/686B64C25/44
Inventor 何永乐王红玲
Owner XIAN AVIATION BRAKE TECH
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