Schaeffler Technologies Ag & Co .kg

Pascal Strasser

Hartmut Mende

Johann Jäckel

Mathias Girnus

Andreas Stuffer

Roman Weisenborn

Alexandre Fischer

Christian Bahrmann

The disclosure relates to a belt pulley decoupler for a motor vehicle drive train that includes a hub constituent part configured for attachment to a crankshaft of an internal combustion engine, a flexible drive element pulley supported in a spring-damped manner relative to the hub constituent part, and a vibration absorber. The vibration absorber includes a mounting plate that extends from a fastening region, which is supported on the hub constituent part and connected to the hub constituent part in a positively locking and/or non-positive manner, radially outwards to a collar region which receives at least one mass element. The fastening region has a plate portion which is supported axially on a flange element of the hub constituent part and which is held relative to the hub constituent part via an axially running dome portion formed either by the mounting plate or the flange element.

Belt pulley decoupler with a mounting plate, attached to a hub constituent part, of a vibration absorber

A crankshaft assembly for a motor vehicle drive train, including a crankshaft segment and a centrifugal pendulum secured thereon, which has a carrier secured to the crankshaft segment and at least one pendulum mass that moves relative to the carrier along a predetermined track. The crankshaft assembly has a friction unit connected to the carrier, which rests on the at least one pendulum mass such that, with a relative movement of the pendulum mass in relation to the carrier, the friction unit applies a frictional torque on the pendulum mass counteracting the relative movement, wherein the friction unit extends over a peripheral section of less than 360°.

Crankshaft assembly with a centrifugal pendulum attached to the crankshaft

The disclosure relates to a crankshaft assembly for an internal combustion engine of a motor vehicle, comprising a crankshaft segment and a vibration damper accommodated on the crankshaft segment. The vibration damper has a support fastened to the crankshaft segment and a damping unit accommodated on the support. A retaining plate of the support, which plate is secured to an end face of a flange region of the crankshaft segment, has a screw receiving hole for receiving a fastening screw that connects the support to the crankshaft segment. The retaining plate also has a centering region that is offset relative to the screw receiving hole in a circumferential direction and is intended to accommodate, or so as to directly form, a centering means supporting the support relative to the crankshaft segment in a centered manner.

Crankshaft assembly comprising a centered vibration damper

A centrifugal pendulum device having at least one flange and at least one centrifugal weight disposed displaceably on the flange. The centrifugal weight is guided displaceably on the flange by roller elements; the flange has openings with guide tracks situated radially outwardly, and the centrifugal weight has two side elements with a guide rail arranged therebetween and has guide tracks; the guide rail is inserted into an opening in the flange; the weight guide tracks are arranged radially inside the flange guide track such that they oppose each other in the radial direction at the same axial height, and roller elements are arranged radially therebetween; the flange having first and second openings with respective first and second guide tracks; the at least one centrifugal weight being inserted into one of the first or second openings depending on the choice of rotary vibration to be damped.

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Aschbach, France

Pascal Strasser