The invention provides a low-noise pneumatic radial tire of a car. The low-noise pneumatic radial tire comprises a tread, wherein five main circumferential grooves extending in the circumferential direction of the tire and a plurality of pattern grooves extending in the width direction of the tire are formed in the tread; a plurality of pattern blocks are defined by the main circumferential grooves and the pattern grooves; each pattern block and one adjacent pattern groove constitute one unit pitch; six different unit pitches including a first unit pitch a, a second unit pitch b, a third unit pitch c, a fourth unit pitch d, a fifth unit pitch e and a sixth unit pitch f are arranged in the circumferential direction of the tire, and the six unit pitches have the relationship as follows: a/b is larger than or equal to 0.638 and smaller than or equal to 0.91, b/c is larger than or equal to 0.665 and smaller than or equal to 0.877, c/d is larger than or equal to 0.711 and smaller than or equal to 0.875, d/e is larger than or equal to 0.625 and smaller than or equal to 0.728, and e/f is larger than or equal to 0.76 and smaller than or equal to 0.849. According to the low-noise pneumatic radial tire of the car, the pattern unit pitches of the tire are optimized according to the low-noise tire design principle, the six different unit pitches are formed through increase or decrease, and specific permutation and combination are performed, so that the noise of the tire is reduced.


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    Titel :

    Low-noise pneumatic radial tire of car


    Beteiligte:
    WANG XIAOJI (Autor:in)

    Erscheinungsdatum :

    18.11.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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