| 摘要 |
Closed cellular elements ( 1 ) intended for use on the inside of an assembly (E) formed of a wheel with a rim (J) provided with an inflation valve (V), on which is mounted a tire (P), the said cellular elements ( 1 ) having walls formed from thin, flexible sheets ( 11, 12 ) impermeable to gas. The cellular elements contain a given amount of a chemical composition which is solid or liquid at ambient temperature, but which changes to the gaseous state by phase change or by the shift of a chemical equilibrium between 40° C. and 80° C.
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