Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Christelle Chaulet

Alain Domingo

Michael Cogne

Richard Audigier

Sébastien Noel

Chris Boyer

A tire with a radial carcass reinforcement made up of at least one layer of metal reinforcing elements, the tire comprising a crown reinforcement itself capped radially with a tread, the tread being connected to two beads via two sidewalls. At least 70% of the metal reinforcing elements of at least one layer of the carcass reinforcement are non wrapped cables which, in what is known as the air-wicking test, display a flow rate of less than 2 cm3/min, and at least 10% of the metal reinforcing elements of the at least one layer of the carcass reinforcement are cables which, in what is known as the air-wicking test, display a flow rate of greater than 4 cm3/min.

Tire comprising carcass reinforcement wires having different perviousnesses

A tire comprising a crown reinforcement which is itself capped radially with a tread, the crown reinforcement containing at least one layer of circumferential reinforcing elements distributed axially at a variable pitch. The layer of circumferential reinforcing elements comprising five parts, these being a central part, two intermediate parts and two axially exterior parts, the pitch in the central part being in the range between 1 and 1.5 times the pitch of the axially exterior parts and the pitch in an intermediate part being in the range between 1.6 and 2 times the pitch of the axially exterior parts.

Tire for heavy vehicles, with a crown reinforcement comprising at least one layer of circumferential reinforcing elements

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Clermont-Ferrand, France

Christelle Chaulet