20250153511. Tire Reduced Crown Heating Heavy-duty Construction Plant Vehicl (COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN)

Tire with Reduced Crown Heating for a Heavy-Duty Construction Plant Vehicle

Abstract: a tire () for a heavy-duty construction plant vehicle, comprising a tread () having a height h radially on the outside of at least one low-hysteresis elastomeric mixture layer () having an overall filler content tg=tsi+tn, tsi being the silica content and tn the carbon black content. according to the invention, the tread () comprises, in the vicinity of at least one axial end (), a plurality of crown cavities () and/or a plurality of lateral cavities (), respectively distributed in the circumferential direction (xx′): a crown cavity () having a depth ps, such that ps/h is at least equal to as+ks*rsi, with as=0.35, ks=0.4 and rsi=tsi/tg, a lateral cavity () having a depth pf, such that pf/h is at least equal to af+kf*rsi, with af=−0.1, kf=0.3 and rsi=tsi/tg.

Inventor(s): Olivier SPINNLER, Thierry ROYER, Natalia BELLIDO-VERA, Olivia CUSCITO

CPC Classification: B60C11/01 (VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES)

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