Schaeffler Technologies Ag & Co .kg

Stefan Jung

Thorsten Krause

Christian Huegel

David Schnaedelbach

Stephan Maienschein

Eugen Kombowski

Markus Werner

Christian Dinger

Craig Kneidel

Peter Wahl

Nathan Yensho

David Schnädelbach

Christian Hügel

Peter Droll

Darius Wysgol

Srivatsan Kannan

A torsional vibration damper for a drivetrain of a motor vehicle having a substantially discoidal centrifugal flange and a plurality of centrifugal pendulum-type absorbers. Each centrifugal pendulum-type absorber includes a first pendulum mass and a second pendulum mass. The first pendulum mass is arranged above a first surface of the pendulum flange, and the second pendulum mass is arranged above a second surface of the pendulum flange. The first pendulum mass and the second pendulum mass are firmly connected to each other by means of at least two spacing bolts in each case. The pendulum flange has a plurality of cutouts in which the spacing bolts are guided. A second spacing bolt of a first centrifugal pendulum-type absorber and a first spacing bolt of a second centrifugal pendulum-type absorber are guided in at least one first cutout.

Torsional vibration damper

A centrifugal pendulum mechanism that includes a pendulum flange and pendulum masses which are fastened on both sides of the pendulum flange by a spacing bolt accommodated in a curved cutout of the pendulum flange to form a pair of pendulum masses, where the pair of pendulum masses is guided relative to the pendulum flange by the at least two rollers and can be pivoted restrictively because of a stop, where the rollers are accommodated in curved guide tracks in the pendulum masses and in complementary curved guide tracks in the pendulum flange and can be rolled, and at least two pairs of pendulum masses are arranged so as to be circumferentially adjacent to each other.

Centrifugal pendulum mechanism

A transmission for operating an auxiliary assembly in a drivetrain of a hybrid vehicle, includes a first sun gear rotatable about a main axis on a drive input side of the transmission, a first planet gear in engagement with the first sun gear on the drive input side of the transmission, a second planet gear on a drive output side of the transmission and mounted with the first planet gear on a common shaft, and a second sun gear in engagement with the second planet gear on the drive output side of the transmission, for coupling to the auxiliary assembly. The first planet gear is connected to the shaft by a first freewheel, which generates a rotationally conjoint connection when the first planet gear overruns in a first direction of rotation, and generates a freewheeling connection when the first planet gear overruns in a second, opposite direction of rotation. The shaft is mounted in a second freewheel in a planet carrier, which second freewheel permits a rotation of the shaft when the shaft rotates about its axis in the first direction of rotation and blocks a rotation of the shaft in the second, opposite direction of rotation.

Transmission for operating an auxiliary assembly

A torsional vibration damper with a friction device. The friction device is formed on at least one friction surface on two contra-rotationally and oppositely disposed disc parts that are in frictional contact with one another. In order to propose how to determine the initial stressing effect of the frictional action independently of external support of the disc parts, the frictional surfaces are pressurized against one another by means of at least one spring element.

A torsional vibration damper, comprising at least two components which can be rotated counter to the resistance of at least one helical spring or bow spring precurved toward the rotational axis for compression of the at least one bow spring during a relative rotation among the components. The at least one bow spring is provided with support in the circumferential direction across the outside diameter thereof on a sliding shell. In order to reduce friction, the outside diameter of the at least one bow spring has a distance from the inside diameter of the sliding shell.

A device for damping vibrations comprising at least two coaxially arranged damper parts rotatable relative to each other to a limited extent in the circumferential direction, coupled by torque transmitting means and damping coupling means, which exhibit at least one energy accumulator unit, and forming the impingement areas for the energy accumulator units. At least one damper part forms a guide channel for the energy accumulator units. The individual impingement area on the damper part forming the guide channel for the energy accumulator units is formed by a stop element, connected in a torsion proof manner at least indirectly to the damper part and forms the abutment faces in the guide channel in the circumferential direction. The abutment face is capable of supporting the energy accumulator unit on both sides of the impingement area on the energy accumulator unit and is a part of the other damper part.

Growing community of inventors

Kehl, Germany

Stefan Jung