| 摘要 |
The invention provides a dual-mass flywheel for rotary vibration damping between a drive shaft (12) of a motor vehicle engine and a transmission input shaft of a motor vehicle transmission, the dual-mass flywheel having a primary mass (20) for the introduction of a torque, having a secondary mass (24) which is rotatable relative to the primary mass (20) and which serves for the discharge of a torque, and having an energy store element, in particular a bow spring (22), which can be coupled to the primary mass (20) and to the secondary mass (24), wherein a receiving channel (30) is formed by the primary mass (20) and/or the secondary mass (24), wherein the receiving channel (30) has a channel wall (28) and a flange (32) projects into the receiving channel (30), wherein the flange (32) is supported in a relatively rotatable manner on the channel wall (28) by means of a friction ring (34, 36), wherein a sealing device (38, 40, 42, 46, 54, 68) is provided for sealing off the receiving channel (30). By means of the sealing device, an ingress of dust and moisture into the receiving channel can be prevented, such that the service life of the dual-mass flywheel can be increased. |
