CPC F16K 31/04 (2013.01) [F16K 37/0041 (2013.01); H02K 11/21 (2016.01); H02K 26/00 (2013.01)] | 11 Claims |
1. A servo valve, comprising a valve main body and a motor comprising:
a stator and a rotator arranged coaxially; wherein the stator envelopes the rotor; the stator and the rotor are spaced along a radial direction of the rotor; a size of the stator along an axial direction is greater than a size of the rotor along the axial direction; a rotor shaft of the rotor is extending to an outside of the stator and is capable of swinging at an angle relative to an axial direction of the motor, and the rotor is configured to be driven to move along an axial direction of the rotor relative to the stator;
wherein the valve main body comprises a mandrel connected to the motor; the motor is capable of driving the mandrel to rotate; the mandrel is configured to convert at least a portion of rotational force of the mandrel into a pushing force along an axial direction of the mandrel, such that the mandrel is capable of driving the rotor to move relative to the stator along the axial direction of the rotor.
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