The invention provides an inflatable radial tyre with an optimized drainage performance on wetlands, for passenger cars. Through the design of the contour of a tread and the design of circumferential main grooves, the degree of deformation of the tyre in contact with the ground is decreased, and the drainage performance of the running tyre is improved, so that the drainage performance of the tyre on the wetlands is optimized, and the running safety on rainy days is improved. The tyre comprises a tread, wherein four circumferential main grooves which extend in the circumferential direction of the tyre are formed in the tread. The tyre is characterized in that the part on the section of the meridian line of the tyre on the tread from the intersection point of the equatorial plane of the tyre and the tread contour to the contour of the tread ends of tyre shoulder parts are sequentially divided into a first-section crown arc, a first main groove arc, a second-section crown arc, a second main groove arc and a tyre shoulder arc by two circumferential main grooves; the arc length a of the first-section crown arc, the arc length b of the first main groove arc, the arc length c of the second-section crown arc, the arc length d of the second main groove arc and the arc length e of the tyre shoulder arc are in the following relationship: a/b is greater than or equal to 1 and smaller than or equal to 1.1; b/c is greater than or equal to 0.44 and smaller than or equal to 0.51; c/d is greater than or equal to 1.86 and smaller than or equal to 3; and d/e is greater than or equal to 0.3 and smaller than or equal to 0.28.


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    Title :

    Inflatable radial tyre with optimized drainage performance on wetlands, for passenger cars


    Contributors:
    ZHEN SUXIA (author) / YU WEI (author) / YU BENYI (author)

    Publication date :

    2015-11-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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