Zf Friedrichshafen Ag

Mannesmann Boge Gmbh

Audi Ag

Boge Elastmetall Gmbh

Heinrich Meyer

Stefan Vollmann

Peter Binner

Detlev Hagedorn

Marc Stira

J&ouml;rn-Rainer Quast

Ernst Bungart

Axially damping hydraulic mount is provided, relating to elastomer mounts for engine mounts for damping the vibrations transmitted from internal combustion engine to the body and for acoustic decoupling. The hydraulic mount includes a frustoconical elastomer support spring, between mount core and upper part of outer jacket, with a working chamber and a compensating chamber for fluid damping medium. Chambers are separated from one another by a separator extending transversely to the mount axis and includes a coupling diaphragm, wherein the working chamber is enclosed by support spring and separating element. Compensating chamber is enclosed by separating element and elastomer bellows. A duct on the separating element is enclosed by a duct part. To counteract excessive increase in dynamic spring rate when frequencies of axially acting vibrations are present, the duct part is occupied by an additional mass. Then the duct part is rigidly connected to a mass element.

Axially damping hydraulic mount

A hydraulic engine bearing for motor vehicles has a fluid-filled working chamber () surrounded by a rubber-elastic circumferential wall (). A compensating chamber () is provided which is in connection with the working chamber () via an overflow duct () in a baffle plate () between the working chamber () and the compensating chamber (). Another compensating chamber () is connected to the working chamber () via a bypass duct (). The additional compensating chamber () is formed from an elastic bellows (), which is surrounded on its outside by a fixed wall () and wherein an intermediate space () is arranged between the bellows () and the wall (). The intermediate space can be filled with a compressible medium, preferably air, and the medium can be emptied by means of a switching device, wherein the switching device is formed from at least one non-return valve () and at least one on-off valve (). The non-return valve () is arranged in a vent duct as a connection path of the intermediate space () to the outside of the fixed wall () such that only a flow of the medium present in the intermediate space () to the outside of the wall () is possible. The on-off valve () is arranged at a vent duct () as an additional connection path of the intermediate space () to the outside of the engine bearing and can close or open the vent duct ().

Hydraulic engine bearing

A hydraulically-damping engine bearing includes a restrictedly deflectable diaphragm separating first and second fluid-filled primary chambers that are bordered at least partially by elastic walls. At least one channel is connected between the first and second primary chambers. An arrangement is connected for adjusting a characteristic of the bearing. The arrangement includes an auxiliary suspension spring that, with the wall of one of the chambers, forms an auxiliary chamber, whereby one of the primary chambers is connectable to the auxiliary chamber via a controllable flow connection.

Hydraulically-damping engine bearing

A hydraulically damping engine bearing having fluid-filled chambers bordered at least partially by elastic walls, a limitedly deflectable diaphragm separating the chambers, and at least one channel connecting the chambers. A bearing spring rate characteristic is adjustable by an arrangement that includes an additional suspension spring arranged outside of one of the chambers. An intermediate space is bordered by the suspension spring together with an outer wall of one of the chambers. A valve, in communication with the intermediate space, enables the space to be aerated and de-aerated.

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Königswinter, Germany

Heinrich Meyer