The present invention is directed to a pneumatic tire 1 in which a sound absorbing member 3 is removably attached to an inner surface 2a of a tread portion 2. The sound absorbing member 3 is formed into an annular shape by joining a body 4 made of a long sponge material. The body 4 has a joint…
A partition assembly configured to be mounted in a tire cavity defined between a wheel and a tire to divide the tire cavity into a plurality of segments, the partition assembly including at least one air line and a plurality of baffles. Each one of the plurality of baffles including: a base…
A sound-absorbing device includes a resonator. The resonator includes a flexible, tube-shaped resonator body having a first end, a second end, and a channel fluidically connecting the first end and the second end. The resonator body is wrapped completely around a hub of a vehicle wheel at least one…
The present invention relates to a soundproof tyre for vehicle wheels comprising a noise reducing element made by vulcanising a vulcanisable and expandable elastomeric compound comprising at least one elastomeric polymer, at least one expanding agent, and at least one compound selected from the…
A tyre includes a tread forming a part of an outer surface, and sound-absorbing material formed as a ribbon and attached to an inner surface of a body of the tyre. The ribbon extends from a first end of the ribbon to a second end of the ribbon and the shape of the ribbon tapers such that a…
A tyre includes a body, a tread and an inner surface. Part of the inner surface has a noise-absorbing agent for absorbing tyre noise. The inner surface includes at least one spot free from noise-absorbing agent, provided with a module for wireless data transmission. The tyre includes a sensor…
A pneumatic tire, having short fibers fixedly attached to at least a portion of an inner surface thereof, wherein: provided that the average cross sectional area of a cross section, not in contact with the inner surface of the tire, of one short fiber is "A" (mm 2 /the number of short fibers) and…
The present invention relates to a noise absorbing arrangement (202, 300, 400, 500) comprising a noise absorbing member (204, 301, 402, 502) and an adhesion element (206, 302, 508), the noise absorbing member comprising a core (211, 312, 408) of fibrous material and an outer sheet (209, 314, 410)…
A pneumatic tire comprises a belt layer 7, a band layer 9, and a noise damper 10 made of a sponge material and attached to a radially inner surface TS of a tread 2. The width WA of the noise damper 10 is of from 40%-70% of a ground contacting width TW of the tread. The band layer 9 has an…
An elastic vehicle tyre (14) with a cavity (20) enclosed by a tread strip (17) supporting the tread (18) and sidewalls (19,19.1) adjacent to this on both sides shows a foam insert (15) connected to the inside of the tread strip (17). The side walls each carry a bead disposed at the free end to fit…
A tire noise reducing system comprises a wheel rim (2), a pneumatic tire (3) and a noise damper (4) disposed in the tire cavity and made from a spongy material whose total volume is in a range of from 0.4 to 20 % of a volume of the tire cavity. The maximum thickness (t) of the damper between the…
A pneumatic tire with a noise damper made of a spongelike multi-cellular material is disclosed. The noise damper is divided into small dampers to improve the high-speed durability of the tire. The noise damper is provided with a water-impermeable outer coating to prevent water from infiltrating…
The present invention relates to a tire noise reducing system comprising a pneumatic tire (2), a wheel rim (3) on which the pneumatic tire is mounted, and a noise damper (5) disposed in a cavity (4) surrounded by an inner surface of the rim (3) and an inner surface of the tire (2) mounted thereon…
A method for correcting dynamic unbalance of a pneumatic tire (2) which comprises adhering a counter weight (5) to an inner surface (4) of the tire (2) to reduce dynamic unbalance of the tire, wherein the counter weight (5) is made of a material having a specific gravity in a range of from 0.016 to…