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AssigneeIna Walzlager Schaeffler oHG
InventorsJens Schafer, Hans Fleischer
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The invention relates to an electrically driven device (1) for the angular adjustment of a shaft relative to its drive (2), said device comprising an eccentric gearing that comprises at least one internally geared wheel and one spur gear that meshes with the internally geared wheel and can be driven by an electrically rotatable eccentric shaft. The considerable structural complexity and space requirement as also the noise level of prior art devices is reduced by the fact that the internally geared wheel is configured as a first and a second internally geared wheel (6, 9), and the spur gear is configured as a first and a second spur gear (16, 17) that have the same number of teeth and are rotatable in opposite directions, the internally geared wheels (6, 9) are connected to the drive (2) and the spur gears (16, 17) are connected to the camshaft and can be driven through a double eccentric shaft (20) comprising identical eccentrics (18, 19) arranged offset at 180° to each other.
An electrically driven device for angular adjustment of A camshaft relative to a crankshaft of an internal combustion engine, said device comprising an eccentric gearing mechanism comprising a first and a second internally geared wheels and a first and a second spur gears that mesh with the first and second internally geared wheels, respectively, and are adapted to be driven by in electrically rotatable double eccentric shaft, wherein the spur gears have a same number of teeth and are rotatable in opposite directions, the internally geared wheels are connected to thy crankshaft and the spur gears are connected to the camnshaft and is driven by said double eccentric shaft comprising identical eccentrics arranged offset at 180° to each other.
Dependencies are inferred from the claim text.