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AssigneeLuk Lamellen und Kupplungsbau GmbH
InventorsWolfgang Haas, Ruben Schmitt, Friedrich Gerhardt, Wolfgang Reik, Steffen Lehmann, Willi Ruder
Estimating the term…
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.
A vibration damper for use in a piston engine having a housing and a crankshaft, said crankshaft being rotatable in said housing about an axis, said damper being arranged to be mounted on said crankshaft in a position such that it is confined in said housing upon mounting of said crankshaft in said housing, said damper including an input element rotatable with said crankshaft about said axis, at least one mass movable relative to said input element, and at least one resilient energy storing element arranged to oppose movements of said input element and said mass relative to each other, the crankshaft including at least one portion extending radially of said axis and is bounded by first surfaces, said input element having a substantially U-shaped form surrounding said at least one portion and including two legs forming second surfaces, said second surfaces at least partially contacting said first surfaces, the damper further including fastener means connecting said input element to said at least one portion and form-locking connections which are effective between said first and second surfaces.
A vibration damper for use in a piston engine having a housing and a crankshaft, said crankshaft being rotatable in said housing about an axis, said damper being arranged to be mounted on said crankshaft in a position such that it is confined in said housing upon mounting of said crankshaft in said housing, said damper including an input element rotatable with said crankshaft about said axis, at least one mass movable relative to said input element, and at least one resilient energy storing element arranged to oppose movements of said input element and said at least one mass to each other, the crankshaft including at least one portion extending radially of said axis and flanked by two surfaces, said input element having a substantially U-shaped form surrounding said at least one portion and including two legs at least partially contacting said two surfaces, the damper further including fastener means connecting said input element to said at least one portion and form-locking connections which are effective between said legs and said at least one portion.
Dependencies are inferred from the claim text.