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Crowns for aircraft tires

An aircraft tire, tire technology, applied in aircraft tires, reinforcement layers of pneumatic tires, tire tread/tread pattern, etc., can solve problems such as unfavorable tires, wear, premature removal, etc., to achieve weight savings and increase the number of passengers or cargo tonnage, the effect of reducing fuel consumption

Active Publication Date: 2018-10-23
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, the above-mentioned differential wear makes the side parts of the tread more severely worn, which becomes more pronounced relative to the middle part, leading to uneconomical premature removal of the tire

Method used

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  • Crowns for aircraft tires
  • Crowns for aircraft tires
  • Crowns for aircraft tires

Examples

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Embodiment Construction

[0062] figure 1 shows a meridian section, ie a section in a meridian plane, of the crown of a tire according to one embodiment of the invention, said tire comprising a tread 1 , a crown reinforcement 2 , a radial carcass reinforcement 4 , said crown The reinforcement 2 is radially inside the tread 1 and comprises a protective layer 21 radially inside the tread 1 and a working reinforcement 3 radially inside the protective layer, said radial carcass reinforcement 4 being in said The radial inner side of the working reinforcement 3. Reinforcement 5 consists of carcass reinforcement 4 and working reinforcement 3 . The radial, axial and circumferential directions are directions ZZ', YY' and XX', respectively. The equatorial plane XZ is defined by a radial direction ZZ' and a circumferential direction XX'. The figure also shows the positions of the central thickness E1 of the tread, the central thickness E3 of the working reinforcements, the central thickness E4 of the carcass ...

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Abstract

The invention relates to an aircraft tire, in particular to a crown of an aircraft tire, which includes a tread layer (1), a textile crown reinforcement (2) and a textile carcass reinforcement (4). To optimize the number of landings, the thickness of the tread layer (E1) is at least equal to 1.1 times the thickness of the working and carcass reinforcements (E5) and at least equal to 1.5 times the thickness of the working reinforcements (E3) in the equatorial plane, The reinforcing elements of the working layer (31, 32, 33) have a toughness at least equal to 90 cN / tex.

Description

technical field [0001] The present invention relates to tires for aircraft and, in particular, to the crown of an aircraft tyre. Background technique [0002] A tire consists of a crown comprising the tread intended to contact the ground through the tread surface, two beads intended to contact the rim, and two sidewalls connecting the crown to the bead. Radial tires generally used for aircraft comprise, more particularly, radial carcass reinforcements and crown reinforcements, as described, for example, in document EP 1 381 525 . [0003] Since a tire has a rotationally symmetric geometry about an axis of rotation, the geometry of a tire is usually described in a mid-plane containing the axis of rotation of the tire. For a given midplane, radial direction, axial direction and circumferential direction denote directions perpendicular to the axis of rotation of the tire, directions parallel to the axis of rotation of the tire and directions perpendicular to the midplane, res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C9/20B60C9/28
CPCB60C2200/02B60C2011/0033B60C9/28B60C2009/208B60C2009/2077B60C2009/209B60C2009/2048B60C2009/2051B60C2009/283B60C9/2009B60C2009/2016B60C2009/2022
Inventor E·若兰
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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