A vehicle wheel resonator includes: a resonator main body which is mounted on a vehicle wheel in a tire air chamber between the vehicle wheel and a tire, to define a sub-air chamber; and a communication hole through which the sub-air chamber communicates with the tire air chamber. The communication hole has a first cross-sectional area having a first channel cross-sectional area and a second cross-sectional area having a second channel cross-sectional area. The first channel cross-sectional area is smaller than the second channel cross-sectional area.

A tire with in-situ generated intrinsic puncture sealant layers and intrinsic noise damper comprising a supporting tire carcass having one or more layers of ply, an outer circumferential tread, and a radially inner layer, a pair of beads, sidewalls extending radially inward from the axial outer edges of a tread portion to join the respective beads, a sealant comprising at least one layer of sealant, disposed radially inwardly from said radially inner layer of said tire carcass, an intrinsic cellular noise damper as the innermost layer adjacent to the sealant, wherein said noise damper has a density less than 1.3 g/cm.sup.3; and wherein said sealant provides self-sealing properties to the tire.

A pneumatic tire includes a tread portion; sidewall portions; bead portions; a carcass layer disposed extending between the pair of bead portions; a belt layer of a plurality of layers disposed on an outer circumferential side of the carcass layer in the tread portion; and a band-like noise absorbing member adhered to a region corresponding to a tire inner surface of the tread portion along the tire circumferential direction interposed by an adhesive layer. The pneumatic tire further includes a belt cover layer being disposed on an outer circumferential side of the belt layer across an entire width of the belt layer, the belt cover layer including organic fiber cords arranged in the tire circumferential direction; and a rate of change of a dynamic loaded radius when traveling at 270 km/h with respect to a dynamic loaded radius when traveling at 30 km/h being restricted to 2.0% or less.

Provided are a pneumatic tire where a band-shaped surface fastener extending in a tire circumferential direction is mounted on a tire inner surface, a cut portion composed of a group of a plurality of notches extending in a width direction of this surface fastener without traversing this surface fastener is formed in this surface fastener repetitively along the tire circumferential direction, the surface fastener is divided into a plurality of components by these notches, and the surface fastener is disposed on the tire inner surface in a state where the cut portion is stretched so the components are continuous in the tire circumferential direction.

A pneumatic tire for resonance noise reduction, which includes a plurality of resonance noise-reducing members that are disposed along the circumferential direction of the inner liner of a tire, and are formed to protrude from the inner liner so as to reduce the interference of the resonance noises generated inside the tire. The resonance noise-reducing members are formed at an irregular interval of disposition along the circumferential direction of the inner liner.

Wheel for a motor vehicle, including a rim and an air-filled tire mounted thereon, wherein, in the interior of the wheel, a material adsorbing molecules contained in the air is provided.

The tire of the present disclosure includes an inner surface layer that forms a tire inner surface and is formed of a thermoplastic resin or contains a thermoplastic resin, and a porous body that is partially embedded in the inner surface layer.

A pneumatic tyre 1 includes a carcass 6 extending between bead cores of bead portions via a tread portion 2 and sidewall portions, and a belt layer 7 arranged on an outer side in a tyre radial direction of the carcass 6 and inside of the tread portion 2. The pneumatic tyre 1 has a damping rubber body 30 arranged between the carcass 6 and the belt layer 7, and a noise damper 20 arranged on an inner cavity surface of the tread portion 2. A width W1 in a tyre axial direction of the damping rubber body 30 is in a range of from 60% to 130% of a width W2 in the tyre axial direction of the belt layer 7, and air permeability of the noise damper 20 measured in accordance with the Japanese Industrial Standard JIS-L1096 is 3.0 cm3/cm2/s or less.

A tire casing is equipped with a radiofrequency transponder and includes a crown, two sidewalls and two beads, each bead including at least one annular bead wire revolving around a reference axis, at least one annular carcass ply, coaxial with the reference axis anchored in the beads separating the tire casing into two zones, inside and outside the carcass ply. The radiofrequency transponder comprises at least one electronic chip and a radiating radiocommunication antenna and is positioned radially externally in relation to said bead wire, characterized in that the radiofrequency transponder comprises a primary antenna electrically connected to the electronic chip, in that the primary antenna is electromagnetically coupled to the radiating antenna, and in that the radiating antenna is formed by a strand helical spring defining a first longitudinal axis.

Disclosed is a tire with reduced cavity noise including an adhesive agent layer applied to an inside of an inner liner and a sound absorber layer attached to the adhesive agent layer, wherein the adhesive agent layer includes polyether containing alkoxysilane at both ends thereof and a benzotriazole-based UV absorber. The tire with reduced cavity noise is stable without causing separation of a sound absorber even upon heating and deformation during driving.