Abstract: The active vibration-absorber is, in particular, an engine mount for motor vehicles. A magnet system has a magnet casing which receives a permanent magnet and which is guided in the assembly so as to be capable of movement in the axial direction. An electrical moving coil projects perpendicularly from a carrier plate and moves into the magnet casing. The carrier plate can be connected to a vibrating machine part, such as between the engine and the vehicle frame. The magnet system is held, in the axial direction, by a magnetic leakage field which is present between the magnet system and stationary ferromagnet.

Abstract: A radial bearing, particularly for a torque support in motor vehicle engines, includes an outer sleeve and an inner sleeve which is coaxial with the outer sleeve and is constructed as a bush core. The inner sleeve is provided on its outer periphery with at least one radially orientated elastomeric body and at least one rubber end stop. The rubber end stop is active only after a predeterminable spring deflection of the elastomeric body. The inner sleeve also has two mutually opposite elastic carrying bodies, through which the inner sleeve is elastically mounted on the outer sleeve. If there is a radial introduction of force, three linear characteristic curve ranges with different rigidity are present one after the other.

Abstract: An engine mount includes upper and lower bearing plates and a hollow-cylindrical support spring being formed of an elastomer and being fastened between the bearing plates. A cup-shaped housing adjoins the lower bearing plate. An inner hollow chamber is defined by inner wall surfaces of the hollow-cylindrical support spring and of the cup-shaped housing. A transversely extending elastic wall divides the inner hollow chamber into an upper chamber and a lower chamber and has a periphery being clamped. A bolt extending centrally within the inner hollow chamber is joined to the upper bearing plate and to the transversely extending wall. The upper and lower chambers are filled with liquid for additional hydraulic damping, and the elastic wall has an overflow opening formed therein through which the upper and lower chambers communicate. A transversely-extending stop plate has an opening formed therein and is disposed in the cup-shaped housing.

Abstract: A bearing bush, in particular for motor vehicles, includes an inner tube of metal having an outer contour. An intermediate tube of synthetic material rests against the inner tube so as to be slideable at least in a circumferential direction. The intermediate tube has an inner surface being shaped in accordance with the outer contour of the inner tube, and the intermediate tube has an outer surface. A vulcanized layer is applied onto the outer surface of the intermediate tube. A method of manufacturing the bearing bush includes inserting the inner tube and the intermediate tube into a vulcanizing mold together. The intermediate tube is deformed in accordance with an external contour of the inner tube during vulcanization.

Abstract: An elastic mount, particularly for supporting drive assemblies in motor vehicles, includes a housing being open toward an engine and secured to a rigid abutment. A support arm protrudes laterally from the drive assembly and is supported on the rigid abutment by elastomer bodies. The support arm has an approximately cross-shaped cross section and laterally obliquely projecting ribs. Elongated rubber bodies are cut from a continuous extrudate and having a prismatic cross section. The rubber bodies are inserted between the ribs for vertical and horizontal support and are enclosed by the housing. A method for producing elastic rubber bodies for an elastic mount for supporting drive assemblies, includes extruding rubber bodies with a predetermined cross section as continuous extruded profiles made of an elastomer, vulcanizing the rubber bodies, and then dividing the rubber bodies into a predetermined length of individual rubber bodies.

Abstract: An elastic bearing bush includes an outer, cylindrical bearing sleeve having an interior, an inner part, and a horizontally extending elastomer body holding the inner part in the interior. The elastomer body defines free regions in the form of circular segments acting as upper and lower fluid-filled spring deflection chambers above and below the inner part. Elastic, substantially cup-shaped stops are fixed on the bearing sleeve, are disposed inside the spring deflection chambers, protrude to the vicinity of the inner part and enclose the spring deflection chambers between the stops and the bearing sleeve. The spring deflection chambers communicate with one another through conduits.

Abstract: A hydraulically damping bearing bush, particularly for motor vehicles, includes a hollow-cylindrical bearing core having ends with end surfaces and an outer tube having end surfaces. Two elastomeric support springs have a space therebetween and are disposed between the bearing core and the outer tube at the end surfaces. The support springs extend substantially radially and have inwardly curved wall portions. Elastomeric radial support lugs extend horizontally on two sides between the bearing core and the outer tube. The support lugs divide the space into upper and lower fluid-filled chambers. The chambers communicate with one another through an annular channel. A cylindrical diaphragm-like elastomeric part extends between the two support springs along the bearing core. The elastomeric support springs, support lugs and part are made as an integral molded and vulcanized part.

Abstract: A radial bush bearing, in particular for motor vehicles, includes a cylindrical outer sleeve, a central bush core disposed in and spaced from the outer sleeve defining an annular gap therebetween, at least one elastomer body being fixed in and completely circumferentially filling the annular gap, and hollow conduits with given cross sections penetrating at least a portion of the at least one elastomer body. The hollow conduits have Venturi-like constrictions and also have enlargements with the given cross sections following the constrictions.

Abstract: An active elastic mount for the insulated mounting of an assembly affected by vibration, in particular an internal combustion engine in a motor vehicle, includes an active decoupling system disposed on an insulated side of the mount. The active decoupling system has a permanent magnetic field. A coil vibrates in the permanent magnetic field. A decoupler mass is coupled to the coil for high-frequency vibration. A sensor detects predetermined operating parameters as a function of which the decoupler mass can be set into vibration electrodynamically. Two radially rigid, mutually parallel spring systems extend transversely to the coil and elastically suspend the coil for exact vertical guidance of the coil.

Abstract: A hydraulically damping two-chamber engine mount includes chambers being bordered with rubber-elastic material and an intermediate plate with an overflow conduit and a central diaphragm. For force-free motion of the diaphragm in the vertical direction, the diaphragm is constructed as a rolling diaphragm, in such a way that a conduit of reduced width at the top and bottom is provided between the diaphragm of rigid material and the intermediate plate surrounding it annularly. In the conduit, on the opposed conduit walls, rolling elements with a circular cross section are inserted for rolling support of the diaphragm.

Abstract: An elastic engine mount includes upper and lower bearing plates. A hollow-cylindrical spring block has top and bottom ends being clamped between the bearing plates and defining an inner space. A bolt protrudes into the inner space from the upper bearing plate. The spring block is formed of an elastomer and has conduits formed therein with at least one open end and a varying cross section. The conduits are disposed in a plurality of planes and are mutually parallel within each respective plane. A transverse elastic wall for additional damping is centrally fixed to the bolt for dividing the inner space into two liquid-filled chambers. The elastic wall has through openings formed therein and has an outer periphery clamped between the lower bearing plate and the bottom end of the spring block.

Abstract: A method for varying the spring rigidity of an elastomer engine mount for motor vehicles, having two rubber bodies being at least intermittently connected in series, includes intermittently spanning one of the two series-connected rubber bodies as a function of predetermined operating parameters with rigid components of the mount by means of a separate force brought to bear from the outside. Induced forces are elastically effectively received with only the other of the two rubber bodies. An elastic engine mount, especially for motor vehicles, includes rotationally symmetrical rubber bodies disposed one above the other in series. The first rubber body is fixed between an engine mount plate and a support plate. The second rubber body is fixed between the support plate and a retaining plate to be pivoted at a vehicle body. An annular housing surrounds and partly encompasses the second rubber body.

Abstract: A method for varying the spring rigidity of an elastomer engine mount, such as for motor vehicles, includes bringing one of two at least intermittently simultaneously loadable parallel-connected spring bodies into continuous engagement with supports and bringing the other of the two spring bodies into intermittent contact with supports as a function of predetermined operating parameters, for absorbing induced forces in parallel with the two spring bodies. The other spring is connected in parallel with a force brought to bear separately from the outside for causing it to contact its supports. An elastic engine mount for motor vehicles includes a hollow-cylindrical spring body and a solid-cylindrical spring body disposed concentrically relative to one another between an engine mount plate and a support plate to be fixed to a vehicle body.

Abstract: A damping bearing assembly, in particular a motor bearing for the vibration-insulated mounting of engines in motor vehicles, comprising an approximately annular spring body of fibrous composite materials, the spring body including a coil form of artificial resin impregnated fibers wound in several layers, force introducing elements clamping the coil form on mutually opposite sides, a working chamber for additional hydraulic damping disposed inside the spring body between the force-introducing elements, the working chamber being formed of elastically deformable material having a low degree of stiffness in an operating direction and a high degree of volume stiffness, a conduit hydraulically communicating with the work chamber and a compensating chamber hydraulically communicating with the conduit.