Hp-chemie Pelzer Research & Development Ltd.

Michael Bopp

Gabriele Brade-Scholz

Martin Herf

Ivo Lorenz

Michael Fred Enkler

Olaf Doehring

A heat-insulating an soundproofing lining for an engine compartment is disclosed, and a method of manufacturing the same, are disclosed. According to one embodiment of the present invention, the lining includes a first covering layer facing the engine. A duroplastic foam layer contacts the covering layer. A soundproofing layer contacts the duroplastic foam layer. A second covering layer contacts the soundproofing layer. According to another embodiment, a method of manufacturing a heat-insulating and soundproofing lining for an engine compartment is disclosed. The method includes the steps of (1) providing a first covering layer; (2) providing a duroplastic foam layer on the first covering layer; (3) providing a soundproofing layer on the first covering layer; (4) providing a second covering layer; and (5) pressing the layers together at an increased temperature and an increased pressure.

Heat-insulating and soundproofing lining for an engine compartment of a motor vehicle

A vehicle wheel includes a wheel rim having an outside carrying airborne noise-absorbing fiber material in the form of a carrier layer having fibers projecting radially outwardly of an outside of the rim. The rim has an interior tire bead contact area which is spaced from an edge of the fiber material a distance at least equal to the length of the fibers to prevent the latter from entering the tire bead contact area. The fiber material is also preferably located at a depressed area between rim beads and the length of the fibers is preferably between 5 mm and 40 mm.

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Witten, Germany

Michael Bopp