Electrically driven device for angular adjustment of a shaft relative to its drive
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United States of America Patent
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-
Oct 28, 2003
Grant Date -
May 9, 2002
app pub date -
Oct 26, 2001
filing date -
Nov 4, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
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.degree. to each other.
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