H02K21/022 - CPC Classification Index

ClassID:

217477 ⎘

H02K21/022 - CPC Classification

Classification description:

Synchronous motors having permanent magnets; Synchronous generators having permanent magnets; Details; Means for mechanical adjustment of the excitation flux by modifying the relative position between field and armature, e.g. between rotor and stator

Sub-classes:

H02K21/023 » {by varying the amount of superposition, i.e. the overlap, of field and armature} 6
H02K21/025 » {by varying the thickness of the air gap between field and armature} 20

Recent Application in this class:

20260106526

ELECTRIC MOTOR OPERATING METHOD

20240120819

ELECTRIC MACHINE, METHOD FOR OPERATING SAID MACHINE, AND MOTOR VEHICLE

20220385158

Rotary electrical machine using time-invariant magnetic fields

20210408881

DEVICE CAPABLE OF CONTROLLING MAGNETIC ACTION, ELECTRIC GENERATOR USING SAME, AND PART FOR SAME

20200021177

Rotor of synchronous motor

20170366075

Synchronous Reluctance Motor

20120019087

Magnetic Electron Exciter and Methods

20070063610

Permanent magnet rotary motor