Vibration damper for the crankshaft of a piston engine

Details Vibration damper for the crankshaft of a piston engine Vibration damper for the crankshaft of a piston engine

1998-09-02

2000-11-07

Kamen, Noah P.

Internal-combustion engines

Vibration compensating device

74574, F02B 7506

Patent

active

061421154

ABSTRACT:
The crankshaft of a piston engine is assembled with a vibration damper into a discrete module prior to mounting of such module in axial and/or radial bearings of the housing of the engine. The damper has an input element which rotates with the camshaft and a mass which is angularly movable relative to the input element against the resistance of coil springs. The input element can be provided with a sleeve which surrounds a snout at one axial end of the crankshaft. Alternatively, the damper can be installed in or on or can constitute a cheek of the crankshaft. The coil springs can operate in parallel with a friction generating device which also opposes rotation of the input element and the mass of the damper relative to each other.

REFERENCES:
patent: 2477081 (1949-08-01), Pierce
patent: 3128640 (1964-04-01), Zeidler
patent: 3196710 (1965-07-01), Pierce
patent: 3296887 (1967-01-01), Larsen
patent: 3628353 (1971-12-01), Armstrong
patent: 4274524 (1981-06-01), Nakane
patent: 4468207 (1984-08-01), Yoshida
patent: 4908003 (1990-03-01), Kobayashi et al.
patent: 5151065 (1992-09-01), Maucher et al.
patent: 5374218 (1994-12-01), Reik et al.

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