Continental Reifen Deutschland Gmbh

Oliver Schuermann

Andreas Tyburski

Joe Guardalabene

Makram Zebian

Annalena Thiemann

Joerg Goener

Michael Schwarz

Matthias Jacob

Gueltekin Oezdogan

The invention relates to a pneumatic vehicle tire (L) having at least one acoustic element (), wherein the tire (L), fitted on a wheel rim (), encloses with the rim () a space inside the tire (), wherein the acoustic element () comprising a body () and a layer () is arranged on an inner tire surface () involved in delimiting the space inside the tire (), wherein the body () is arranged on the inner tire surface () and wherein the layer () is arranged on a surface region of the body () that is facing the space inside the tire (). The object is to provide a tire which has improved acoustic properties with less use of porous noise-reducing material and the acoustic element of which is more resistant to pressure changes. This is achieved in that the layer () is arranged on at least 15% of that surface of the body () which faces toward the space inside the tire (), in that the layer () has a first surface region () which is arranged at a distance from the inner tire surface (), in that the first surface region () is connectable pneumatically to a surface region () lying opposite it and in that the layer () has a sound reflectance of at least 80% for a sound wave striking the first surface region (). The invention also relates to a wheel rim () and to a wheel having such an acoustic element ().

Pneumatic vehicle tire having an acoustic element

A pneumatic vehicle tire has a structured tread which transitions at both sides into sidewalls the end of which is formed by a tire bead which is insertable in air-tight fashion into a wheel rim of a vehicle wheel equipped with the pneumatic vehicle tire, such that an air cavity filled with compressed air is formed between wheel rim and pneumatic vehicle tire. The pneumatic vehicle tire has, on its inner surface situated opposite the tread, a foamed material layer. The porosity of the foamed material layer amounts to between 70% and 99% of the total volume of the foamed material layer.

Pneumatic vehicle tire

A pneumatic vehicle tire having a self-sealing sealant arranged in its interior, on the inner surface opposite from the tread, the sealant being highly viscous and the sealant having such a tackiness that it adheres to the inner surface. The inner surface on which the sealant is arranged has regions provided with an adhesion-reducing effect, these regions provided with an adhesion-reducing effect taking up between 40% and 60% of the inner surface on which the sealant is arranged.

Pneumatic vehicle tire having a tacky sealing

A pneumatic vehicle tire is provided. The tire includes a tread, an inner surface lying opposite the tread, a self-sealing sealant and a sound-absorbing open-cell foam ring arranged inside the pneumatic vehicle tire. The foam ring is adhesively attached to the inner surface and adheres to the self-sealing sealant which is applied before the sound-absorbing open-cell foam ring is attached to the inner surface. The self-sealing sealant has, at least immediately after being applied, a tackiness required for an adhesive attachment of the sound-absorbing open-cell foam ring. A closed-cell material ring is arranged between the sound-absorbing foam ring and the self-sealing sealant to prevent a diffusion of the sealant into the open-cell foam ring. The closed-cell material ring effects an airtight condition.

Growing community of inventors

Langenhagen, Germany

Oliver Schuermann