Internal combustion engine device for internal combustion engine of motor vehicle, has structural region with S-shaped curvature, whose curvature radius close to connecting point is smaller than curvature radius far from connecting point

摘要

The internal combustion engine device has a torsional vibration damper (10), which has a sheet-metal disk (11) with a connecting point (13) for connecting to a crankshaft (12), and a structural region (15) running concentrically about an axis of rotation (14). The structural region has a S-shaped curvature (16) with a curvature radius (17) close to the connecting point and a curvature radius (18), which is far from the connecting point and is oriented in an opposite direction. The curvature radius close to the connecting point is smaller than the curvature radius far from the connecting point.