Röchling Automotive Se & Co. Kg

Hydro Aluminium Rolled Products Gmbh

Frank Uhl

Klaus Pfaffelhuber

Andreas Siemen

Volker Denkmann

Egon Moos

Richard Koehnsen

Ludwig Huber

Arno Orth

Jürgen Küper

Carsten Riewe

Markus Sattel

A motor-vehicle underbody liner, encompassing a planar porous open-cell carrier component; the carrier component being embodied for mounting onto a motor-vehicle underbody and for being carried along therewith; the carrier component including an installation side that faces toward the motor-vehicle underbody during operation as intended, and a liner side that faces away from the motor-vehicle underbody during operation as intended; the carrier component being adjusted, by suitable densification of its open-cell material, to a sound absorption behavior having a sound absorption maximum in a frequency range from 800 Hz to 1250 Hz; there being arranged on the installation side of the carrier component an additional absorber component having a sound absorption behavior whose sound absorption maximum is also located in a frequency range from 800 Hz to 1250 Hz.

Motor-vehicle underbody liner to absorb rolling noise on the vehicle lined therewith

A flat motor vehicle composite structure component, comprising a metal sheet component having a shaped metal sheet and to which at least one flat, inherently rigid reinforcement component of porous plastic is connected on at least one side of the metal sheet, the surface of the reinforcement component is adhesively connected to a side of the metal sheet component which, in the fully installed state, is intended to face a motor vehicle functional space.

Flat motor vehicle composite structure component having a metal sheet component and a flat inherently rigid reinforcement component of porous plastic connected to same

A cover part for a vehicle, especially an underbody cover, has a porous core layer and at least one cover layer on each side, wherein the porous core layer is constructed such that it has acoustic transparency or an acoustically absorbent effect. Here, the porous core layer is made either from a thermoplastic matrix with embedded reinforcement fibers, especially glass fibers, whose melting point temperature is higher than the melting point temperature of the plastic matrix, or from a foam, which is either open-cell or closed-cell and perforated. The acoustically absorbent porous core layer is occupied on one or both sides with one or more acoustically transparent or absorbent covering layers.

Acoustic cover part for a vehicle

Growing community of inventors

Ober-Flörsheim, Germany

Frank Uhl