Automotive vehicle steering system having an electric motor powered linear actuator shaft for turning a steered wheel

An automotive vehicle steering system has an actuator ( 12 ) for steering a wheel ( 10 ). A shaft ( 28 ) passes axially through the interior of a housing ( 14 ) of the actuator and through a rotor tube ( 56 ) journaled for rotation within the housing. On the exterior of the housing one end of the sh...

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Bibliographische Detailangaben
Hauptverfasser:	STOUT GREGORY JAMES, LIUBAKKA MICHAEL KENNETH, ANDONIAN BRIAN JAMES
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING MECHANICAL ENGINEERING MOTOR VEHICLES PERFORMING OPERATIONS THERMAL INSULATION IN GENERAL TRAILERS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	An automotive vehicle steering system has an actuator ( 12 ) for steering a wheel ( 10 ). A shaft ( 28 ) passes axially through the interior of a housing ( 14 ) of the actuator and through a rotor tube ( 56 ) journaled for rotation within the housing. On the exterior of the housing one end of the shaft is coupled to the wheel. An electric motor ( 52 ) within the interior of the housing rotates the rotor tube when the wheel is steered by a steering wheel. An internal screw thread ( 68 ) on the rotor tube and an external screw thread ( 70 ) on the shaft are operatively coupled by a set ( 74 ) of transmission rollers ( 76 ) to provide for bi-directional transmission of motion between the rotor tube and the shaft such that rotation of the rotor tube causes the shaft to move axially of the housing to steer the vehicle wheel and axial motion of the shaft due to wheel recovery from a turn rotates the rotor tube.