Clutch device comprising a fastening unit, which has a clamping element between a torsional vibration damper and a disconnect clutch

A clutch device for a drive train of a motor vehicle, comprising:

• a torsional vibration damper comprising an output side;
• a disconnect clutch comprising a clutch component;
• a fastening unit releasably connecting the disconnect clutch to the torsional vibration damper, the fastening unit comprising:
• a first toothing region fixed on the clutch component;
• a second toothing region fixed on the output side and positively rotationally connected with the first toothing region;
• and
• a clamping element arranged to preload the first toothing region relative to the second toothing region in a circumferential direction with a preloading force;
• and
• a centrifugal-force pendulum device fastened to the clutch component, wherein:
• the disconnect clutch comprises a plurality of friction elements;
• and
• the centrifugal-force pendulum device is arranged at least partially in an axial direction at a same height as the plurality of friction elements.

A clutch device for a drive train of a motor vehicle, comprising:

• a disconnect clutch comprising a clutch component, the clutch component comprising a first toothing region;
• a torsional vibration damper comprising a driver disc on an output side, the driver disc comprising a second toothing region and a recess, the second toothing region being positively rotationally connected with the first toothing region;
• and
• a clamping element comprising:
• bracing collars disposed circumferentially between pairs of teeth of the second toothing region and positively rotationally connected with the first toothing region;
• and
• a locking tongue extending in a circumferential direction and pivotable in an axial direction;
• and
• a preload spring, wherein:
• in a preloaded state, prior to and during installation of the torsional vibration damper to the disconnect clutch, a distal end of the locking tongue is axially displaced and disposed in the recess to block rotation of the clamping element relative to the driver disc, the distal end being held against an edge of the recess by a circumferential force from the preload spring;
• and
• after the torsional vibration damper is installed to the disconnect clutch, a rotation force applied to the driver disc is arranged to further compress the preload spring and rotate the driver disc relative to the clamping element to create a circumferential gap between the recess and the locking tongue, allowing the locking tongue to axially pivot out of the recess;
• and
• after the torsional vibration damper is installed to the disconnect clutch and the rotation force applied to the driver disc is removed, the preload spring urges the second toothing region and the bracing collars in opposite circumferential directions against the first toothing region to form a positive toothing engagement that is free of play.