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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 crankshaft 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.
In a piston engine, a combination comprising a housing;
A vibration damper for use in a piston engine having a housing and a crankshaft, said crankshaft being rotatable in said housing about a predetermined axis and said damper comprising at least two components movable relative to each other against the opposition of at least one resilient element disposed between said at least two components, 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, and at least one friction generating device arranged to oppose at least certain stages of movement of said components relative to each other, said at least one resilient element being positioned to apply to said friction generating device a force which entails the generation of a frictional damping action at least when said at least two components are caused to move relative to each other.
In a piston engine, a combination comprising a housing;
A method of assembling a piston engine wherein a crankshaft is rotatable in a housing and has a tendency to perform at times harmonic vibrations in actual use of the engine, comprising the steps of:
Dependencies are inferred from the claim text.