Audi Nsu Auto Union Aktiengesellschaft

Audi Ag

Boge Gmbh

Johannes Van Den Boom

Heinz Hollerweger

Geert Kuipers

Wilfried Leitner

Georg Blatt

Gert Salwesky

Christian Mair

Hans-Peter Gassen

Frank-Uwe Godel

Gert Salewsky

A hydraulic engine mount is provided, the dynamic characteristics of which may be varied in response to engine performance parameters. In particular, the invention provides for a hydraulic engine mount comprising a core for attachment to an engine and the base for mounting to a frame, the core and the base being connected to each other by an elastic member, at least two fluid filled and elastically deformable chambers divided by a diaphragm, a throttle for permitting a limited exchange of fluid between the chambers, an absorptive mass selectively movable by the core, and a selectively operable connection between the core and the absorptive mass.

Hydraulic engine mount

The invention relates to a noise reduction lining of the kind for use in passenger compartments of automobiles for absorbing engine noise of five or six cylinder combustion engines, and comprises between a cover layer and a base layer an absorption layer of open-pored elastic material into which is embedded a perforsted extinction layer.

Noise reduction lining

A mount for securing together two relatively displaceable bodies, such as a motor-vehicle engine and a vehicle chassis, with limited relative freedom of movement has a substantially closed liquid-filled chamber formed by a first resiliently deformable wall and a second wall which may be rigid or resiliently deformable. A partition subdivides this chamber into a pair of compartments and has an elastically deformable and relatively stiff portion and an elastically deformable and relatively yieldable portion. One of these portions is formed with a throughgoing orifice. Stops are provided on each side of the relatively yieldable portion to limit the deflection thereof so that low-amplitude vibrations are not transmitted between the bodies, but high-amplitude vibrations are damped when the yieldable portion abuts the stops.

Elastomeric mount with hydraulic damping

In an arrangement according to this disclosure, a spring element (3, 7) is arranged between a mounting core member (2) and a support (6) and is connected to a damper mass (9, 12). The damper mass has a container (10) which is filled with pressure liquid and/or gas and closed by a diaphragm (13). The spring rate of the diaphragm can be varied as desired, particularly in dependence on the speed of rotation of the machine or engine. For varying the spring rate of the diaphragm, a pressure plate (15) is associated with the diaphragm, and is displaceable relative to the diaphragm by way of an adjusting arrangement (16, 17) dependent on the speed of rotation of the machine or engine, and the relative configurations of the pressure plate and the facing diaphragm are such that this displacement reduces or increases the free area of the diaphragm, and thus varies its spring rate.

Resilient mountings for machines or machine components, particularly

A vibration-absorbing mount with hydraulic damping, especially for mounting an internal-combustion engine upon a vehicle chassis, comprises a housing subdivided internally by an elastic wall which is connected with the force-transmitting member of the mount and is formed with an orifice enabling fluid to pass between the two chambers. For small pressure differentials, the pressure equalization between the two chambers is effected substantially by transfer of fluid through the orifice while large pressure differentials, representing high frequency oscillations, are damped primarily by deformation of the movable wall.

Growing community of inventors

Kosching, Germany

Johannes Van Den Boom