Planetary gear transmission systems or components – Electric or magnetic drive or control
Reexamination Certificate
2006-01-31
2006-01-31
Bonck, Rodney H. (Department: 3681)
Planetary gear transmission systems or components
Electric or magnetic drive or control
C074S424500, C074S424600, C074S424710, C074S424960, C074S089450, C180S402000, C180S408000, C180S411000, C310S323010, C310S323080, C310S323180
Reexamination Certificate
active
06991573
ABSTRACT:
A steering actuator of an independent type steer-by-wire system comprises a housing fixed to a vehicle body and an ultrasonic motor. The ultrasonic motor has a stator internally fixed to the housing and a rotator rotating relative to the stator when an electric current is applied. A steering rod having a first end and a second end penetrates through a center portion of the ultrasonic motor. The first end of the steering rod extends out of the housing for connection to a tie rod. In one embodiment, a ring gear, planetary gears, sun gear and/or racks formed at the steering rod are operably associated with converting rotating movement of the ultrasonic motor into linear movement of the steering rod. In another embodiment, a rotator ring, a plurality of pinions, worm gears and a plurality of racks formed at the steering rod are operably associated with converting rotating movement of the ultrasonic motor into linear movement of the steering rod.
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Bonck Rodney H.
Hyundai Motor Company
Le David D.
Morgan & Lewis & Bockius, LLP
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