DIFF Subgroup
H02K 21/12 with stationary armatures and rotating magnets
Introduced: September 1968
Full Title
Synchronous motors having permanent magnets; Synchronous generators having permanent magnets > with stationary armatures and rotating magnets
Of 4 combined children, 3 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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- H02K 21/22 with magnets rotating around the armatures, e.g. flywheel magnetos +2 CPC IPC+CPC Available in IPC and CPC
- H02K 21/24 with magnets axially facing the armatures, e.g. hub-type cycle dynamos IPC+CPC Available in IPC and CPC