Invention Grant
US09328839B2 High-temperature torque motor actuator 有权
高温扭矩电机执行器

High-temperature torque motor actuator
Abstract:
A torque motor valve actuator includes a first magnetic pole piece, a second magnetic pole piece, an armature, and a coil. The first magnetic pole piece is of a first magnetic polarity. The second magnetic pole piece is of a second magnetic polarity, and is spaced apart from the first magnetic pole piece to define a gap. The armature is rotationally mounted and disposed in the gap between the first and second magnetic pole pieces. The coil surrounds at least a portion of the armature and is disposed such that it is not surrounded by either the first magnetic pole piece or the second magnetic pole piece. The coil is adapted to receive electric current and is configured, upon receipt thereof, to generate a magnetic force that causes the armature to rotate.
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