Dynamic damper and flywheel assembly

Details Dynamic damper and flywheel assembly Dynamic damper and flywheel assembly

1998-09-04

2000-04-04

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

74574, 192 485, 192207, 192209, F16F 1510, F16D 312, F16D 2100

Patent

active

06044942&

ABSTRACT:
Dynamic dampers 10, 50 and 70 can operate in a flywheel assembly of a coupling mechanism 1 to dampen vibrations. Each of the dynamic dampers 10, 50 and 70 has an inner periphery supporting mechanism arranged radially inside of a mass member 11 or 71 for supporting the mass member 11 or 71. This arrangement allows the mass member 11 or 71 to be increased in mass without increasing the sizes of a flywheel assembly. The dynamic damper 10 can dampen both torsional and axial vibrations. The dynamic damper 10 includes a mass member 11, a sub-clutch 13 and an elastic portion assembly 12. The coupling mechanism 1 has a main clutch 3, which is operatively coupled between a crankshaft 8 of an engine and an input shaft 9. The mass member 11 can selectively rotate with the input shaft 9 upon engagement of the sub-clutch 13. The sub-clutch 13 releases an interlocked relationship between the input shaft 9 and the mass member 11 when the main clutch 3 disengages the crankshaft 8 from the input shaft. The elastic portion assembly 12 includes at least one rubber member, which elastically couples the input shaft 9 and the mass member 11 together in the rotating and axial directions when the sub-clutch 13 interlocks the input shaft 9 and the mass member 11 together. The dynamic damper 50 is to the dynamic damper 10, except that a pair of curved springs 61 are used instead of rubber members. The dynamic damper 70 includes a mass member 71, a sub-clutch 13 and coil springs 72. The coil springs 72 elastically couple the input shaft 9 and the mass member 71 in the rotating direction when the input shaft 9 and the mass member 71 are interlocked together by the sub-clutch 13.

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