METHOD OF INCREASING RELIABILITY OF AIR TIRE AND DEVICE TO THIS END Russian patent published in 2011 - IPC B60C17/00 B29C73/16 B60C19/12 B60C5/14 

FIELD: transport.

SUBSTANCE: invention relates to aircraft engineering and automotive industry. Proposed method and device uses mechanical sealing to eliminate tire puncture by automatic pressing of sealant to tire inner surface originated in tire puncture and pressure drop thanks to extra smaller-diametre inner tube in rubber tubeless tire. Said inner tube is provided with sealing envelope with corrugated surface along its radius to compensate for tube size in working position in tire puncture. Said envelope is made from elastic porous material, for example, silicon, or latex, or foamed rubber, or foamed polyethylene. Said envelope is designed to provide, at normal tire inner pressure, a clearance, and pressing said envelope at pressure drop to tire inner surface at tube inner pressure. Said envelope is provided with protective layer from Kevlar or Teflon to protect inner tube from sharp articles.

EFFECT: tire serviceability after puncture at reduced operating pressure.

2 cl, 1 dwg