Actuator for a vehicle steering device

Planetary gear transmission systems or components – Input from independent power sources – Worm gear in drive train

Reexamination Certificate

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Details

C475S339000, C074S500000

Reexamination Certificate

active

07041022

ABSTRACT:
An actuator for superimposed steering engagement in a vehicle steering system having first and second input shafts, an output shaft coaxial with the first input shaft, and a superposition gear disposed between the shafts. The superposition gear has a two-stage, modified planetary gear that has respective sun wheels fixed on the first input shaft and the output shaft, respectively, a satellite carrier that can be driven by the second input shaft, and at least one stepped planet with two respective planet wheels that mesh with the sun wheels. The planet wheels are, spaced apart axially from one another, one on each end portion of a smaller-diameter shaft portion with which they are integral.

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patent: 5613919 (1997-03-01), Nelson
patent: 6645112 (2003-11-01), Fleytman et al.
patent: 2001/0036880 (2001-11-01), Baker, Jr.
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patent: 38 06 292 (1989-09-01), None
patent: 100 00 221 (2001-07-01), None
patent: 0 084 197 (1983-07-01), None
patent: 401283448 (1989-11-01), None

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