Low-noise pneumatic tire tread pattern

A technology for pneumatic tires and tread patterns, applied to tire treads/tread patterns, tire parts, vehicle parts, etc., can solve the problems of small number of resonators, large size, and no consideration of secondary split peaks of resonators , to achieve the effect of widening the anechoic frequency band, strengthening the attenuation effect, and small feature size

Pending Publication Date: 2021-07-23
GITI RADIAL TIRE (ANHUI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Although the resonator can reduce the resonance noise of the tire tube cavity, it does not consider the secondary split peak generated by the resonator due to the side-by-side longitudinal groove;
[0005] 2. The type of the resonator is a quarter-

Method used

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  • Low-noise pneumatic tire tread pattern
  • Low-noise pneumatic tire tread pattern
  • Low-noise pneumatic tire tread pattern

Examples

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Example Embodiment

[0031] Embodiment:

[0032] Refer figure 1 , figure 2 , Image 6 , Figure 7 A low noise pneumatic tire tread pattern, including a trench 20 extending along the crown 10 and a plurality of resonances 30 on the side of the longitudinal groove 20, each of which includes:

[0033] Two adjacent narrow grooves 31, each narrow groove extends along the crown surface of the longitudinal groove forming a multi-stage lateral passage 3101 and a vertical passage 3102, and the horizontal channel extends away from the angle of the longitudinal groove. A. This Example A is 90 °, and the vertical passage is parallel to the vertical groove distribution, and the adjacent transverse channels are arranged in parallel;

[0034] Among them, the number of lateral channel 3101 and the vertical passage 3102 is at least 1, i.e., a lateral channel containing at least one lateral channel and a vertical passage, and the length of the lateral channel in the direction of the tire is greater than the longitudinal ...

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Abstract

The invention provides a low-noise pneumatic tire tread pattern which comprises a longitudinal groove extending in the circumferential direction of a tire crown and a plurality of resonators connected to one side of the longitudinal groove in parallel at intervals, and each resonator comprises two adjacent narrow grooves. Each narrow groove extends along the surface, far away from the longitudinal groove, of the tire crown to form multiple sections of transverse channels and vertical channels which are connected end to end, the included angle of the transverse channels extending for the first time and deviating from the longitudinal groove direction is A, the vertical channels are distributed in parallel with the longitudinal groove, and the adjacent transverse channels are arranged in parallel; wherein the number of end-to-end connection points of the transverse channel and the vertical channel is at least one. According to the pneumatic tire tread pattern provided by the invention, on one hand, the peak value of a first-order lumen resonance main peak caused by the longitudinal grooves can be well reduced, and on the other hand, the peak values of two secondary split peaks caused by the longitudinal grooves beside the resonators can be effectively reduced. On the other hand, the tread patterns can disperse concentrated tube cavity resonance noise in a wide frequency band, and the purpose of tire noise reduction is well achieved.

Description

technical field [0001] The invention relates to the technical field of tread pattern of a pneumatic tire, in particular to a tread pattern of a pneumatic tire for reducing resonance noise of a tire tube cavity. Background technique [0002] As the engine noise and vehicle body vibration noise are well controlled, the proportion of tire noise in vehicle noise has further expanded. As one of the main sources of tire noise, tire cavity resonance noise needs to be well controlled from the perspective of protecting the physical and mental health of drivers. The resonance noise of the tire tube cavity is caused by the air column resonance generated by the pipe with openings at both ends formed by the longitudinal groove of the tire tread and the ground. This noise is generally generated in the range of 800-1200Hz, which is in the frequency band that the human ear is more sensitive to. Therefore, the control of tire tube resonance noise becomes very important. [0003] In order t...

Claims

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Application Information

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IPC IPC(8): B60C11/03B60C19/00
CPCB60C11/03B60C19/002B60C2011/0358
Inventor 李兵郑英杰李宁学周世文张永斌毕传兴
Owner GITI RADIAL TIRE (ANHUI) CO LTD
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