Torsional vibration damping apparatus

Details Torsional vibration damping apparatus Torsional vibration damping apparatus

2005-04-26

2005-04-26

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Vibration compensating device

C074S604000

Reexamination Certificate

active

06883487

ABSTRACT:
A torsional vibration damping apparatus, especially a web damper for mounting on a crankshaft of a piston engine, particularly an internal combustion engine for suppression of natural torsion frequencies from crankshafts can now be economically produced. The apparatus comprises a housing fastened to the engine crankshaft to which at least one rotary mass is coupled with spring elements disposed between the housing and the rotary mass allowing the apparatus to be pre-assembled. Advantageously, multiple parts of the torsional vibration damping apparatus, such as the housing can now be fabricated from more economic sheet metal in place of more costly cast parts.

REFERENCES:
patent: 6142115 (2000-11-01), Haas et al.
patent: 6308678 (2001-10-01), Haas et al.
patent: 6382164 (2002-05-01), Haas et al.

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