| 摘要 |
A torque motor and engine throttle valve assembly employing same having an annular stator with a pair of semi-cylindrical shell permanent magnets disposed on the inner periphery of the stator. A pair of rotor pole segments each having an L-shaped configuration in section in the plane of symmetry have an arcuately shaped outer flange. The rotor pole segments are joined axially and oppositely disposed on the motor shaft to form an S-shape in section in the plane of symmetry. A stator coil is assembled with the pole segments on the rotor shaft, and the stator coil is attached to the stator through an open side of the S-shape. The arcuate flanges maximize the rotor material adjacent the radial flux gap between the magnets and the rotor pole segments. In the throttle valve, the rotor pole segments are mounted onto an extension of the throttle blade shaft and the stator is attached to the throttle body. |
