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The stator is the stationary part of a rotary system, [1] found in electric generators, electric motors, sirens, mud motors, or biological rotors (such as bacterial flagella or ATP synthase). Energy flows through a stator to or from the rotating component of the system, the rotor .
A squirrel-cage rotor connected to the output shaft rotates within the stator at slightly less than the rotating field from the stator. Within the squirrel-cage rotor is a freely rotating permanent magnet rotor, which is locked in with rotating field from the stator. The effect of the inner rotor is to reenforce the field from the stator. [1]
A linear motor is an electric motor that has had its stator and rotor "unrolled", thus, instead of producing a torque ... In 2023 a hydraulic launch roller coaster, ...
A problem with the motor shown above is that when the plane of the coil is parallel to the magnetic field—i.e. when the rotor poles are 90 degrees from the stator poles—the torque is zero. In the pictures above, this occurs when the core of the coil is horizontal—the position it is just about to reach in the next-to-last picture on the right.
Workings of a brushed electric motor with a two-pole rotor (armature) and permanent magnet stator. "N" and "S" designate polarities on the inside axis faces of the magnets; the outside faces have opposite polarities. The + and -signs show where the DC current is applied to the commutator which supplies current to the armature coils
A correct rotor/stator slot combination, selected precision roller bearings, reduced magnetic saturation in the stator can help to reduce the structure borne noise levels. Methods of measurements and acceptance criteria are defined in the American military MIL-STD-740-2(SH) [ 18 ] and the British Defence Standard 02-813 [ 19 ]
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The gerotor motor is in essence a rotor with n − 1 teeth, rotating off center in a rotor/stator with n teeth. Pressurized fluid is guided into the assembly using a (usually) axially placed plate-type distributor valve. Several different designs exist, such as the Geroller (internal or external rollers) and Nichols motors.
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