Volkswagen Ag

Volkswagenwerk Aktiengesellschaft

Woco Franz-josef Wolf & Co. Gmbh

Otto Weber

Volkmar Keck

Siegfried Grohnert

Manfred Thesenvitz

Franz Josef Wolf

Hubert Pletsch

Horst Schicht

Rolf Kirsch

Horst Hartwig

Gunter Munchenberg

Rolf Engelking

Dietrich Denker

Peter Seifert

Peter Dietz

Volkamr Keck

A flexible conduit for the exhaust line of an internal combustion engine includes a flexurally supple tube having several helical corrugations of equal pitch and a flexible supporting coil spring having its ends fixedly connected to flanges at opposite ends of the tube and which is frictionally received in the trough of one of the helical corrugations.

Flexible conduit for the exhaust line for an internal combustion engine

A support assembly especially suitable as a drive unit support includes a block of resilient material having inserts made of substantially harder material with facing surfaces which extend in nonparallel directions to at least partially extinguish sound waves of disturbing vibration frequencies by interference after reflection from the surfaces.

Resilient support assembly providing vibration suppression

In the embodiment described in the specification, a cushion bearing for motor vehicles has two rigid bearing seats with a resilient rubber bearing block and an air spring acting between the seats. The air spring has a bellows forming a chamber divided into two compartments by a throttling plate which is connected to one of the bearing seats by way of a central rod and a rigid housing connected to the other bearing seat encloses the bellows. The bellows has at least one intake valve so that the air spring is automatically pumped up during relative motion between the bearing seats.

Cushion bearing for motor vehicles

In the representative sound-insulating engine mounts described in the specification, a resilient pad of elastomeric material is disposed between pan-shaped members having side walls which are spaced from the periphery of the resilient pad in the absence of dynamic loads so as to provide resilient stops for the pad deformation.

Mount with insulation for solid-conducted sound, in particular for an

In order to reduce the interior noise level in an automobile, the vibration excitation of the front region of the floor panel is reduced by means of localized gaps between front longitudinal members, on the one hand, and the floor panel, on the other hand, as well as through support of the longitudinal members by a cross member in an approximately middle region of the sill members only, whereas the vibration excitation of the rear region of the floor panel is increased, so that in the head region of the vehicle occupants airborne vibration components are present which in amplitudes as well as phases are suitable to extinguish one another by means of interference.

Understructure for an automobile

A soft mounting for insulating body transmitted waves comprises a soft support spring block made of elastic material. The support spring block is disposed between two beaker-type housing parts which serve to transfer load forces into the support spring block. The housing parts are arranged coaxially with respect to one another and are telescopically positioned within one another. Elastomer spring elements having cavities located therein concentrically surround the support spring block. The cavities serve to show the effect of a collapse of a spring restoration force by kinking.

Soft mounting for insulating body-transmitted acoustic waves

An air intake pipe, for mounting to the air filter of an internal combustion engine has two air flow channels having different lengths. A duct is provided between the air flow channels connecting them over their entire length. The duct is dimensioned to provide both sound attenuation and acoustic wave interference between intake noises in the two channels. Thus, the intake pipe acts as an intake noise silencer.

Air intake pipe for an internal combustion engine

A disc brake with a friction disc having a pair of annular friction surfaces placed between brake shoes disposed about such friction surfaces for coming into frictional engagement therewith when the brake is actuated, the friction disc including a cast member located in the region of the surfaces which come into frictional contact with the brake shoes when the brake is actuated, the cast member including a separating joint running oblique with respect to the friction surfaces.

Growing community of inventors

Wolfsburg, Germany

Otto Weber