Firma Carl Freudenberg

Jurgen Eichhorn

Herwig Honlinger

Winfried Ochs

Hans-Gerd Eckel

Jurgen Morr

A torsional vibration damper in which a first inertial ring is arranged at least in part radially on the outside of an inner ring and is bonded to it by an intermediate ring of rubber, the intermediate ring resting axially against the inertial ring with the avoidance of gaps and adhesion, the inertial ring being bonded to the intermediate ring substantially only in the region of its inside diameter, and a belt travel ring being additionally bonded to the intermediate ring and surrounding the inertial ring radially on the outside at least in a partial region.

Torsional vibration damper

An accessory drive for attachment to the end of a shaft. The drive comprises a belt pulley, a carrier with at least a first and a second planet wheel that are strongly coupled and which have differing numbers of teeth, the first planet wheel being in engagement with a first gear circulating along with the shaft, and the second planet wheel with a second gear that is rotatable relative to the shaft, an activatable and deactivatable brake being provided between a continuously stationary part and a part capable of relative rotation, and a freewheel to prevent backward relative rotation of the second gear with respect to the end of the shaft. The first and second gears are arranged radially inside the carrier, such that the freewheel is arranged between the carrier and the part capable of relative rotation and the belt pulley at least partially surrounds the freewheel, the carrier, and the brake radially and externally, and so that the belt pulley and carrier are joined in rotary engagement.

Accessory drive

A torsionally elastic coupling for a machine part rotating about an axis, comprising an inner ring open axially in one direction, which axial opening is defined by two flank surfaces and one bottom surface, and an outer ring, having an annular axial leg extending parallel to the axis, which is received in the axial opening of the inner ring, and which is supported with respect to one flank surface of the axial opening by a guide ring, and which is connected to the other flank surface of the axial opening by means of a damping ring made of elastomeric material, the guide ring and damping ring being configured integrally and continuously with one another, and made of elastomeric material.

Torsionally elastic coupling with elastomeric guide ring and damping ring

A rotatable machine component with a ring of resilient material secured to it in the vicinity of at least one axially projecting collar. The collar has a continuous annular groove around it that cuts into its contour radially, and the ring is secured in the groove just by snapping into it. The ring and the rotatable component rest loosely against each other, when the component is not rotating, without internal tension in the ring.

Rotatable machine component with device for reducing acoustic vibrations

An inside ring (1) and an outside ring (2) are mounted about a common axis (3) and are joined to one another in a rotationally elastic manner by at least one elastic body (4) of elastomeric material. The elastic body (4) is bonded only to one of the rings (1, 2) and is supported in a relatively rotatable manner on the other ring (2, 1) by at least one friction layer (7) to limit the transmittable torque.

Rotational vibration damper

A resilient coupling with relative rotation limitation. The coupling comprises an annular hub that fits into a concentric annular flywheel while separated from it at least to some extent by a radial interval such that the flywheel can rotate relative to the hub. A spring element of elastomeric material is accommodated between the hub and the flywheel. The hub has a first flange that extends radially outward and the flywheel has a second flange that extends radially inward such that the hub and flywheel respectively reinforce each other while permitting relative rotation. The first flange on the hub has recesses that open toward the flywheel and the second flange on the flywheel has recesses that open toward the hub. The first and second flanges overlap in the region of the recesses with the edges of the recesses forming opposing contact surfaces. The opposing contact surfaces are so delimited in the circumferential direction as to provide separation in at least one direction of the rotation.

Growing community of inventors

Weinheim, Germany

Jurgen Eichhorn