The motor housing encloses the armature and pole pieces, holds the bearings that support the armature shaft, and provides the terminals for connecting the motor to the rest of the staring system.
启动机外壳内装入电枢与磁极，外壳两端的轴承支撑电枢转轴，并将启动机与启动系统支架相连。
2
Double salient pole pulsed DC motor consists of a salient pole stator with DC winding and a salient pole rotor without armature winding.
There is however a gap in the magnetic circuit between the pole piece and armature so a force is created which ACTS to close this gap and complete the magnetic circuit.