Two-phase motor and hydraulic power steering system using the two-phase motor

Abstract

A two-phase motor with high space utilization efficiency is provided for driving a hydraulic control valve. A valve drive motor includes a rotor and a stator surrounding the rotor. The rotor has six magnetic poles. The stator includes six stator windings. The U-phase first stator winding and the V-phase first stator winding constitute a pair of two-phase stator windings. The U-phase second stator winding and the V-phase second stator winding constitute a pair of two-phase stator windings. The U-phase third stator winding and the V-phase third stator winding constitute a pair of two-phase stator windings. The two stator windings of each pair are disposed at an angular interval of 180 degrees in terms of an electrical angle.

Dependencies are inferred from the claim text.