Safety support with a noise attenuator for a vehicle wheel
AssigneeMichelin Recherche et Technique S.A.
InventorsJulien Flament, Denis Jubert
Life of this patent
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Abstract
A vehicle wheel, comprising a rim, a disc, a tire defining with the rim a circumferential cavity C, and at least one resonator suitable for attenuating a natural resonant frequency of said cavity, said wheel also comprising a safety support, for supporting the tread of this tire from the inside in the event of loss of inflation pressure, said support providing at least one of the walls of said resonator. The invention also provides for the safety support comprising resonators.
Claims18
A vehicle wheel, comprising a rim, a tire, said tire defining with said rim a circumferential cavity C and being provided with a tread, said wheel further comprising at least one resonator provided with walls and suitable for reducing the amplitude of a natural resonance of said cavity, a safety support, for supporting said tread of said tire from the inside in the event of a loss of inflation pressure, said support providing at least one of the walls of said resonator.
A vehicle wheel, comprising a rim, said tire defining with said rim a circumferential cavity C and being provided with a tread, said wheel further comprising at least one resonator provided with walls and suitable for reducing the amplitude of a natural resonance of said cavity, a safety support, for supporting said tread of said tire from the inside in the event of a loss of inflation pressure, said support providing at least one of said walls of said resonator, wherein each resonator is formed of a cavity c, occupying a volume V in fluidic communication with said cavity C, said fluidic communication being provided via at least one opening of a calibrated diameter and length, the volume V and the calibrated dimensions of the opening being determined so as to attenuate at least one acoustic resonance of the air contained in the cavity C of the tire, corresponding substantially to a given frequency.
A safety support intended to be mounted on a rim of a vehicle wheel within a tire, for supporting a tread of said tire from the inside in the event of a loss of inflation pressure, said tire defining with the rim a cavity C, said support serving to provide at least one of the walls of at least one resonator suitable for attenuating the amplitude of a natural resonant frequency of said cavity.
Dependencies are inferred from the claim text.