PNEUMATIC TYRE Russian patent published in 2016 - IPC B60C11/13 B60C11/12 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. On tread surface there are narrow grooves with intervals in circumferential direction of a tire. Every narrow groove passes at an angle to the tire circumferential direction and has the width less than its depth. On one end section of the narrow groove there is an inlet part passing in the tire circumferential direction, wherein the inlet part is connected to the narrow groove by one end and is finished by the other end on the groove wall surface on the side of an end point of the circular, component of the first vector of the narrow groove walls surfaces, which are faced to each other in the tire circumferential direction, at that, the first vector passes from one end of the narrow groove to the other end of the narrow groove.

EFFECT: technical result is improvement of heat dissipation without increasing the total volume of grooves.

7 cl, 9 dwg, 1 tbl