|  | H |
SECTION H — ELECTRICITY

|  | H02 |
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER

|  | H02K |
DYNAMO-ELECTRIC MACHINES (measuring instruments Fulltext... Hierarchy... Expanded...G01; dynamo-electric relays Fulltext... Hierarchy... Expanded...H01H 53/00; magneto-hydrodynamic machines Fulltext... Hierarchy... Expanded...H02N 4/00; microphones, pick-ups, telephone receivers, loud-speakers or other transmitters or receivers of sound or other mechanical waves Fulltext... Hierarchy... Expanded...H04R)

|  | H02K |
Note(s) Structural adaptation of the machine for the purposes of its control is in this sub-class, but controlling motors, generators, or converters, in general, is classified in sub-class Fulltext... Hierarchy... Expanded...H02P.

|  | H02K 1/00 |
Details of the magnetic circuit (magnetic circuits or magnets in general, magnetic circuits for transformers for power supply Fulltext... Hierarchy... Expanded...H01F; magnetic circuits for relays H 01 H 45/16)

|  | H02K 1/02 |
· | characterised by the magnetic material

|  | H02K 1/04 |
· | characterised by the material used for insulating the magnetic circuit or parts thereof (insulation of windings Fulltext... Hierarchy... Expanded...H02K 3/30)

|  | H02K 1/06 |
· | characterised by the shape, form, or construction

|  | H02K 1/08 |
· · | Salient poles

|  | H02K 1/10 |
· · · | Commutating poles

|  | H02K 1/12 |
· · | Stationary parts of the magnetic circuit

|  | H02K 1/14 |
· · · | Stator cores with salient poles

|  | H02K 1/16 |
· · · | Stator cores with slots for windings

|  | H02K 1/18 |
· · · | Means for mounting or fastening magnetic stationary part on to, or to, the stator structure

|  | H02K 1/20 |
· · · | with channels or ducts for flow of cooling medium

|  | H02K 1/22 |
· · | Rotating parts of magnetic circuit

|  | H02K 1/24 |
· · · | Rotor cores with salient poles

|  | H02K 1/26 |
· · · | Rotor cores with slots for windings

|  | H02K 1/28 |
· · · | Means for mounting or fastening rotating magnetic part on to, or to, the rotor structure

|  | H02K 1/30 |
· · · · | using intermediate part or parts, e.g. spider

|  | H02K 1/32 |
· · · | with channels or ducts for flow of cooling medium

|  | H02K 1/34 |
· · | Reciprocating, oscillating, or vibrating part of magnetic circuit

|  | H02K 3/00 |
Details of windings (coils in general Fulltext... Hierarchy... Expanded...H01F 5/00)

|  | H02K 3/02 |
· | Windings characterised by the conductor material (conductors in general Fulltext... Hierarchy... Expanded...H01B 1/00, Fulltext... Hierarchy... Expanded...H01B 5/00)

|  | H02K 3/04 |
· | Windings characterised by the conductor shape, form, or construction, e.g. with bar conductor

|  | H02K 3/06 |
· · | Squirrel-cage or other short-circuited windings

|  | H02K 3/08 |
· · · | Double or multiple-cage windings

|  | H02K 3/10 |
· · · | Deep-bar windings

|  | H02K 3/11 |
· · · · | Amortisation windings

|  | H02K 3/12 |
· · | arranged in slots

|  | H02K 3/14 |
· · · | with transposed conductors, e.g. twisted conductor

|  | H02K 3/16 |
· · · | for damping, commutating, or other auxiliary purposes

|  | H02K 3/18 |
· · | Windings for salient poles

|  | H02K 3/20 |
· · · | for damping, commutating, or other auxiliary purposes

|  | H02K 3/22 |
· · | consisting of hollow conductors

|  | H02K 3/24 |
· · | with channels or ducts between the conductors for flow of cooling medium

|  | H02K 3/26 |
· · | consisting of printed conductors

|  | H02K 3/28 |
· · | Layouts of windings or of connections between windings

|  | H02K 3/30 |
· | Windings characterised by the insulating material (insulating bodies in general Fulltext... Hierarchy... Expanded...H01B 3/00, Fulltext... Hierarchy... Expanded...H01B 17/00)

|  | H02K 3/32 |
· | Windings characterised by the shape, form, or construction of the insulation

|  | H02K 3/34 |
· · | between conductors

|  | H02K 3/36 |
· · | between conductor and core, e.g. slot insulation

|  | H02K 3/38 |
· · | around winding heads, equalising connectors, or connections thereto

|  | H02K 3/40 |
· · | for high voltage, e.g. affording protection against corona

|  | H02K 3/42 |
· | Means for preventing or reducing eddy-current losses in the winding heads, e.g. by shielding

|  | H02K 3/44 |
· | Protection against moisture or chemical attack; Windings specially adapted for operation in liquid or gas

|  | H02K 3/46 |
· | Fastening of windings on stator or rotor structure

|  | H02K 3/48 |
· · | in slots

|  | H02K 3/50 |
· · | Fastening of winding heads, equalising connectors, or connections thereto

|  | H02K 3/52 |
· · | Fastening salient pole windings or connections thereto

|  | H02K 5/00 |
Casings; Enclosures; Supports (casings for electric apparatus in general Fulltext... Hierarchy... Expanded...H05K 5/00)

|  | H02K 5/02 |
· | Casings or enclosures characterised by the material thereof

|  | H02K 5/04 |
· | Casings or enclosures characterised by the shape, form, or construction thereof

|  | H02K 5/06 |
· · | Cast metal casings

|  | H02K 5/08 |
· · | Insulating casings

|  | H02K 5/10 |
· · | affording protection from ingress, e.g. of water, of fingers

|  | H02K 5/12 |
· · | specially adapted for operating in liquid or gas, e.g. packing of shaft (combined with cooling arrangements Fulltext... Hierarchy... Expanded...H02K 9/00)

|  | H02K 5/14 |
· · | Means for supporting brushes or brush holders in casings

|  | H02K 5/16 |
· · | Means for supporting bearings, in casings e.g. insulating support

|  | H02K 5/18 |
· · | with ribs or fins for improving heat transfer

|  | H02K 5/20 |
· · | with channels or ducts for flow of cooling medium

|  | H02K 5/22 |
· · | Other additional parts of casings, e.g. shaped to form connection or terminal box

|  | H02K 5/24 |
· | specially adapted for suppression or reduction of noise or vibration

|  | H02K 5/26 |
· | Means for adjusting the casing relative to its support

|  | H02K 7/00 |
Arrangements for handling mechanical energy structurally associated with the machine

|  | H02K 7/02 |
· | Additional mass for increasing inertia, e.g. flywheel

|  | H02K 7/04 |
· | Balancing means

|  | H02K 7/06 |
· | Means for converting reciprocating into rotary motion or vice versa

|  | H02K 7/08 |
· | Structural association with bearings (support in machine casing Fulltext... Hierarchy... Expanded...H02K 5/16)

|  | H02K 7/10 |
· | Structural association with clutches, brakes, gears, pulleys, mechanical starters

|  | H02K 7/102 |
· · | with friction brakes

|  | H02K 7/104 |
· · | with eddy-current brakes

|  | H02K 7/106 |
· · | with dynamo-electric brakes

|  | H02K 7/108 |
· · | with friction clutches

|  | H02K 7/11 |
· · | with dynamo-electric clutches

|  | H02K 7/112 |
· · | with friction clutches and brakes

|  | H02K 7/114 |
· · | with dynamo-electric clutches and brakes

|  | H02K 7/116 |
· · | with gear-box

|  | H02K 7/118 |
· · | with starting device

|  | H02K 7/12 |
· · | with auxiliary limited movement of stator, rotor, or core parts, e.g. rotor axially movable for the purpose of clutching or braking

|  | H02K 7/14 |
· | Structural association with mechanical load, e.g. hand-held machine tool, fan (with fan or impeller for cooling the machine Fulltext... Hierarchy... Expanded...H02K 9/06; for suction cleaners Fulltext... Hierarchy... Expanded...A47L)

|  | H02K 7/16 |
· · | for operation above critical speed of vibration of rotating parts

|  | H02K 7/18 |
· | Structural association of electric generator with mechanical driving motor, e.g. turbine (if the driving-motor aspect predominates, see the relevant sub-class of Section F, e.g. Fulltext... Hierarchy... Expanded...F03B 13/00)

|  | H02K 7/20 |
· | Structural association with auxiliary dynamo-electric machine, e.g. with electric starter motor, with exciter

|  | H02K 9/00 |
Systems for cooling or ventilating (channels or ducts in parts of the magnetic circuit Fulltext... Hierarchy... Expanded...H02K 1/20, Fulltext... Hierarchy... Expanded...H02K 1/32; channels or ducts in or between conductors Fulltext... Hierarchy... Expanded...H02K 3/22, Fulltext... Hierarchy... Expanded...H02K 3/24)

|  | H02K 9/02 |
· | by ambient air flowing through the machine

|  | H02K 9/04 |
· · | having means for generating flow of cooling medium, e.g. having fan

|  | H02K 9/06 |
· · · | with fan or impeller driven by the machine shaft

|  | H02K 9/08 |
· | by gaseous cooling medium circulating wholly within the machine casing (Fulltext... Hierarchy... Expanded...H02K 9/10 takes precedence)

|  | H02K 9/10 |
· | by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing

|  | H02K 9/12 |
· · | wherein the cooling medium circulates freely within the casing

|  | H02K 9/14 |
· | wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle

|  | H02K 9/16 |
· · | wherein the cooling medium circulates through ducts or tubes within the casing

|  | H02K 9/18 |
· · | wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing

|  | H02K 9/19 |
· | for machines with closed casing and with closed-circuit cooling using a liquid cooling medium, e.g. oil

|  | H02K 9/193 |
· · | with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium

|  | H02K 9/197 |
· · | in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator

|  | H02K 9/20 |
· · | wherein the cooling medium vaporises within the machine casing

|  | H02K 9/22 |
· | by solid heat conducting material embedded in, or arranged in contact with, stator or rotor, e.g. heat bridge

|  | H02K 9/24 |
· | Protection against failure of cooling arrangements, e.g. due to loss of cooling medium, due to interruption of the circulation of cooling medium (circuit arrangements affording such protection Fulltext... Hierarchy... Expanded...H02H 7/00)

|  | H02K 9/26 |
· | Structural association with machine of devices for cleaning or drying cooling medium, e.g. of filter

|  | H02K 9/28 |
· | Cooling of commutators, slip-rings, or brushes, e.g. by ventilating (current collectors in general Fulltext... Hierarchy... Expanded...H01R 39/00)

|  | H02K 11/00 |
Structural association with measuring or protective devices or electric components, e.g. with resistor, with switch, with suppressor for radio interference

|  | H02K 13/00 |
Arrangements for current collection structurally associated with the machine (means for supporting brushes or brush holders in casings Fulltext... Hierarchy... Expanded...H02K 5/14; current collectors or details thereof in general Fulltext... Hierarchy... Expanded...H01R 39/00); Circuit arrangements for improvement of commutation

|  | H02K 13/02 |
· | Connections of slip-rings with the winding

|  | H02K 13/04 |
· | Connections of commutator segments with the winding

|  | H02K 13/06 |
· · | Resistive connections between winding and commutator segments, e.g. by high-resistance choke, by transistor

|  | H02K 13/08 |
· · | Segments formed by extensions of winding

|  | H02K 13/10 |
· | Special arrangements of brushes or commutators for the purpose of improving commutation

|  | H02K 13/12 |
· | Means for producing an axial reciprocation of the rotor and its associated current collector part, e.g. for polishing commutator surface

|  | H02K 13/14 |
· | Circuit arrangements for improvement of commutation, e.g. by use of unidirectionally conductive element

|  | H02K 15/00 |
Methods or apparatus specially adapted for manufacturing, assembling, maintaining, or repairing dynamo-electric machines (manufacture of current collectors in general Fulltext... Hierarchy... Expanded...H01R 43/00)

|  | H02K 15/02 |
· | stator or rotor bodies

|  | H02K 15/04 |
· | windings, prior to mounting into the machine (coil manufacturing in general H 01 F 11/02)

|  | H02K 15/06 |
· | Embedding prefabricated windings in the machine

|  | H02K 15/08 |
· | Forming windings by laying conductors into or around core part

|  | H02K 15/085 |
· · | by laying conductors into slotted stators

|  | H02K 15/09 |
· · | by laying conductors into slotted rotors

|  | H02K 15/095 |
· · | by laying conductors around salient poles

|  | H02K 15/10 |
· | Applying solid insulation to the stator, or the rotor

|  | H02K 15/12 |
· | Impregnating, heating or drying of windings, stators, rotors, or machines

|  | H02K 15/14 |
· | Casings; Enclosures; Supports

|  | H02K 15/16 |
· | Centering the rotor within the stator; Balancing the rotor (balancing per se Fulltext... Hierarchy... Expanded...G01M)

|  | H02K 17/00 |
Asynchronous induction motors; Asynchronous induction generators

|  | H02K 17/02 |
· | Asynchronous induction motors

|  | H02K 17/04 |
· · | for single phase current

|  | H02K 17/06 |
· · · | having windings arranged for permitting pole-changing

|  | H02K 17/08 |
· · · | Motors with auxiliary phase obtained by externally fed auxiliary winding, e.g. capacitor motor

|  | H02K 17/10 |
· · · | Motors with auxiliary phase obtained by split-pole carrying short-circuited winding

|  | H02K 17/12 |
· · | for multi-phase current

|  | H02K 17/14 |
· · · | having windings arranged for permitting pole-changing

|  | H02K 17/16 |
· · | having rotor with internally short-circuited windings, e.g. cage rotor

|  | H02K 17/18 |
· · · | having double- or multiple-cage rotor

|  | H02K 17/20 |
· · · | having deep-bar rotor

|  | H02K 17/22 |
· · | having rotor with windings connected to slip-rings

|  | H02K 17/24 |
· · · | in which both stator and rotor are fed with ac

|  | H02K 17/26 |
· · | having rotor or stator designed to permit synchronous operation

|  | H02K 17/28 |
· · | having compensating winding for improving phase angle

|  | H02K 17/30 |
· · | Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the motor, e.g. with impedance, with switch (control arrangements external to the motor Fulltext... Hierarchy... Expanded...H02P)

|  | H02K 17/32 |
· · | Structural association with auxiliary mechanical devices, e.g. clutch, brake (control arrangements external to the motor Fulltext... Hierarchy... Expanded...H02P)

|  | H02K 17/34 |
· · | Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter (control of cascade arrangements Fulltext... Hierarchy... Expanded...H02P)

|  | H02K 17/36 |
· · · | with another asynchronous induction motor

|  | H02K 17/38 |
· · · | with a commutator machine

|  | H02K 17/40 |
· · · | with a rotary ac/dc converter (cascade ac/dc converters Fulltext... Hierarchy... Expanded...H02K 47/06)

|  | H02K 17/42 |
· | Asynchronous induction generators

|  | H02K 17/44 |
· · | Structural association with exciting machine

|  | H02K 19/00 |
Synchronous motors or generators (having permanent magnet Fulltext... Hierarchy... Expanded...H02K 21/00)

|  | H02K 19/02 |
· | Synchronous motors

|  | H02K 19/04 |
· · | for single-phase current

|  | H02K 19/06 |
· · · | Motors having windings on the stator and a variable-reluctance soft-iron rotor without windings, e.g. inductor motor

|  | H02K 19/08 |
· · · | Motors having windings on the stator and a smooth rotor of material with large hysteresis without windings, e.g. hysteresis motor

|  | H02K 19/10 |
· · | for multi-phase current

|  | H02K 19/12 |
· · · | characterised by the arrangement of exciting windings, e.g. for self-excitation, for compounding, for pole-changing

|  | H02K 19/14 |
· · | having additional short-circuited winding for starting as an asynchronous motor

|  | H02K 19/16 |
· | Synchronous generators

|  | H02K 19/18 |
· · | having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar generator

|  | H02K 19/20 |
· · · | with variable-reluctance soft-iron rotor without winding

|  | H02K 19/22 |
· · | having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generator

|  | H02K 19/24 |
· · · | with variable-reluctance soft-iron rotor without winding

|  | H02K 19/26 |
· · | characterised by the arrangement of exciting winding

|  | H02K 19/28 |
· · · | for self-excitation

|  | H02K 19/30 |
· · · | for compounding

|  | H02K 19/32 |
· · · | for pole-changing

|  | H02K 19/34 |
· · | Generators with two or more outputs

|  | H02K 19/36 |
· · | Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the generator, e.g. with impedance, with switch (control arrangements external to the generator Fulltext... Hierarchy... Expanded...H02P)

|  | H02K 19/38 |
· · | Structural association with exciting machine

|  | H02K 21/00 |
Synchronous motors having permanent magnet; Synchronous generators having permanent magnet

|  | H02K 21/02 |
· | Details

|  | H02K 21/04 |
· · | Windings on magnet for additional excitation

|  | H02K 21/06 |
· · | Magnets

|  | H02K 21/08 |
· · · | Rotating magnets

|  | H02K 21/10 |
· · | Rotating armatures

|  | H02K 21/12 |
· | with stationary armature and rotating magnet

|  | H02K 21/14 |
· · | Magnet rotating within armature

|  | H02K 21/16 |
· · · | having an annular armature core with salient poles (with homopolar co-operation Fulltext... Hierarchy... Expanded...H02K 21/20)

|  | H02K 21/18 |
· · · | having horse-shoe armature core (with homopolar co-operation Fulltext... Hierarchy... Expanded...H02K 21/20)

|  | H02K 21/20 |
· · · | having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar machine

|  | H02K 21/22 |
· · | magnet rotating around armature, e.g. flywheel magneto

|  | H02K 21/24 |
· · | magnet axially facing armature, e.g. hub-type cycle dynamo

|  | H02K 21/26 |
· | with rotating armature and stationary magnet

|  | H02K 21/28 |
· · | armature rotating within magnet

|  | H02K 21/30 |
· · · | having an annular armature core with salient poles (with homopolar co-operation Fulltext... Hierarchy... Expanded...H02K 21/36)

|  | H02K 21/32 |
· · · | having a horse-shoe magnet (with homopolar co-operation Fulltext... Hierarchy... Expanded...H02K 21/36)

|  | H02K 21/34 |
· · · | having bell-shaped or bar-shaped magnet, e.g. for cycle lighting (with homopolar co-operation Fulltext... Hierarchy... Expanded...H02K 21/36)

|  | H02K 21/36 |
· · · | with homopolar co-operation

|  | H02K 21/38 |
· | with rotating flux distributor, and armature and magnet both stationary

|  | H02K 21/40 |
· · | Flux distributor rotating around magnet and within armature

|  | H02K 21/42 |
· · | Flux distributor rotating around armature and within magnet

|  | H02K 21/44 |
· · | Armature windings wound upon magnet

|  | H02K 21/46 |
· | Motors having additional short-circuited winding for starting as an asynchronous motor

|  | H02K 21/48 |
· | Generators with two or more outputs

|  | H02K 23/00 |
Dc commutator motors or generators having mechanical commutator; Universal ac/dc commutator motors

|  | H02K 23/02 |
· | characterised by the exciting arrangement

|  | H02K 23/04 |
· · | having permanent magnet excitation

|  | H02K 23/06 |
· · | having shunt connection of excitation windings

|  | H02K 23/08 |
· · | having series connection of excitation windings

|  | H02K 23/10 |
· · | having compound connection of excitation windings

|  | H02K 23/12 |
· · | having excitation produced by a current source independent of the armature circuit

|  | H02K 23/14 |
· · | having high-speed excitation or de-excitation, e.g. by neutralising the remanent excitation field

|  | H02K 23/16 |
· · | having angularly adjustable excitation field, e.g. by pole reversing, by pole switching

|  | H02K 23/18 |
· · | having displaceable main or auxiliary brushes

|  | H02K 23/20 |
· · | having additional brushes spaced intermediately of the main brushes on the commutator, e.g. cross-field machine, metadyne, amplidyne, other armature-reaction excited machine

|  | H02K 23/22 |
· · | having compensating or damping winding

|  | H02K 23/24 |
· · | having commutating-pole winding

|  | H02K 23/26 |
· | characterised by the armature winding

|  | H02K 23/28 |
· · | having open winding, i.e. not closed within armature

|  | H02K 23/30 |
· · | having lap winding; having loop winding

|  | H02K 23/32 |
· · | having wave winding; having undulating winding

|  | H02K 23/34 |
· · | having mixed windings

|  | H02K 23/36 |
· · | having more than one winding; having more than one commutator; having more than one stator

|  | H02K 23/38 |
· · | having winding or connection for improving commutation, e.g. equipotential connection

|  | H02K 23/40 |
· | characterised by the arrangement of the magnet circuit

|  | H02K 23/42 |
· · | having split poles, i.e. zones for varying reluctance by gaps in poles or by poles with different spacing of the air gap

|  | H02K 23/44 |
· · | having movable or turnable iron parts

|  | H02K 23/46 |
· · | having stationary shunts, i.e. magnetic cross flux

|  | H02K 23/48 |
· · | having adjustable armature

|  | H02K 23/50 |
· | Generators with two or more outputs

|  | H02K 23/52 |
· | Motors acting also as generators, e.g. starting motor used as generator for ignition or lighting

|  | H02K 23/54 |
· | Disc armature motors or generators

|  | H02K 23/56 |
· | Motors or generators having the iron core separated from armature winding

|  | H02K 23/58 |
· | Motors or generators having no iron core

|  | H02K 23/60 |
· | Motors or generators having a rotating armature and a rotating excitation field

|  | H02K 23/62 |
· | Motors or generators with stationary armature and rotating excitation field

|  | H02K 23/64 |
· | Motors specially adapted for running on dc or ac by choice

|  | H02K 23/66 |
· | Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedance, with switch (control arrangements external to the machine Fulltext... Hierarchy... Expanded...H02P)

|  | H02K 23/68 |
· | Structural association with auxiliary mechanical devices, e.g. with clutch, with brake (control arrangements external to the machine Fulltext... Hierarchy... Expanded...H02P)

|  | H02K 24/00 |
Machines adapted for the instantaneous transmission or reception of the angular displacement of rotating parts, e.g. synchro, selsyn

|  | H02K 25/00 |
Dc interrupter motors or generators

|  | H02K 26/00 |
Machines adapted to function as torque motors, i.e. to exert a torque when stalled

|  | H02K 27/00 |
Ac commutator motors or generators having mechanical commutator (universal ac/dc motors Fulltext... Hierarchy... Expanded...H02K 23/64)

|  | H02K 27/02 |
· | characterised by the armature winding

|  | H02K 27/04 |
· | having single-phase operation in series or shunt connection

|  | H02K 27/06 |
· · | with a single or multiple short-circuited commutator, e.g. repulsion motor

|  | H02K 27/08 |
· · | with multiple-fed armature

|  | H02K 27/10 |
· · | with switching devices for different modes of operation, e.g. repulsion-induction motor

|  | H02K 27/12 |
· | having multi-phase operation

|  | H02K 27/14 |
· · | in series connection

|  | H02K 27/16 |
· · | in shunt connection with stator feeding

|  | H02K 27/18 |
· · | in shunt connection with rotor feeding

|  | H02K 27/20 |
· | Structural association with a speed regulating device

|  | H02K 27/22 |
· | having means for improving commutation, e.g. auxiliary fields, double windings, double brushes

|  | H02K 27/24 |
· | having two or more commutators

|  | H02K 27/26 |
· | having disc armature

|  | H02K 27/28 |
· | Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine (control arrangements external to the machine Fulltext... Hierarchy... Expanded...H02P)

|  | H02K 27/30 |
· | Structural association with auxiliary mechanical devices, e.g. clutch, brake (control arrangements external to the machine Fulltext... Hierarchy... Expanded...H02P)

|  | H02K 29/00 |
Commutator motors or generators having non-mechanical commutating devices, e.g. discharge tube, semiconductor device

|  | H02K 29/02 |
· | Dc motors or generators

|  | H02K 29/04 |
· | Ac motors

|  | H02K 31/00 |
Acyclic motors or generators, i.e. dc machines having a drum or disc armature with continuous current collectors

|  | H02K 31/02 |
· | with solid-contact collectors

|  | H02K 31/04 |
· | with at least one liquid-contact collector

|  | H02K 33/00 |
Motors with reciprocating, oscillating, or vibrating magnet, armature, or coil system

|  | H02K 33/02 |
· | with armature moved one way by energisation of a single coil system and returned by mechanical force, e.g. by spring

|  | H02K 33/04 |
· · | wherein the frequency of operation is determined by the frequency of uninterrupted ac energisation

|  | H02K 33/06 |
· · · | with polarised armature

|  | H02K 33/08 |
· · · | with dc energisation superimposed on ac energisation

|  | H02K 33/10 |
· · | wherein the alternate energisation and de-energisation of the single coil system is effected or controlled by movement of the armature

|  | H02K 33/12 |
· | with armature moving in alternate directions by alternate energisation of two coil systems

|  | H02K 33/14 |
· · | wherein the alternate energisation and de-energisation of the two coil systems are effected or controlled by movement of the armature

|  | H02K 33/16 |
· | with polarised armature moving in alternate directions by reversal or energisation of a single coil system

|  | H02K 33/18 |
· | with coil system moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnet

|  | H02K 35/00 |
Generators with reciprocating, oscillating, or vibrating coil system, magnet, armature, or other part of the magnetic circuit

|  | H02K 35/02 |
· | with moving magnet and stationary coil system

|  | H02K 35/04 |
· | with moving coil system and stationary magnet

|  | H02K 35/06 |
· | with moving flux distributor, and both coil system and magnet stationary

|  | H02K 37/00 |
Motors with armature rotating step by step and without interrupter or commutator driven by the armature

|  | H02K 39/00 |
Generators specially adapted for producing a desired non-sinusoidal waveform

|  | H02K 41/00 |
Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path

|  | H02K 41/02 |
· | Linear motors

|  | H02K 41/04 |
· | Motors of travelling-wave type

|  | H02K 41/06 |
· | Rolling motors, i.e. having the rotor axis parallel to the stator axis and following a circular path as the rotor rolls around the inside or outside of the stator

|  | H02K 45/00 |
Machines in which the dynamo-electric interaction between a flow of fluid-borne magnetic particles and a coil system converts energy of mass flow into electrical energy or vice versa

|  | H02K 47/00 |
Dynamo-electric converters

|  | H02K 47/02 |
· | Ac/dc converters or vice versa

|  | H02K 47/04 |
· · | Motor/generators

|  | H02K 47/06 |
· · | Cascade converters

|  | H02K 47/08 |
· · | Single-armature converters

|  | H02K 47/10 |
· · · | with booster machine on the ac side

|  | H02K 47/12 |
· | Dc/dc converters

|  | H02K 47/14 |
· · | Motor/generators

|  | H02K 47/16 |
· · | Single-armature converters, e.g. metadyne

|  | H02K 47/18 |
· | Ac/ac converters

|  | H02K 47/20 |
· · | Motor/generators

|  | H02K 47/22 |
· · | Single-armature frequency converters with or without phase-number conversion

|  | H02K 47/24 |
· · · | having windings for different numbers of poles

|  | H02K 47/26 |
· · · | operating as under- or over-synchronously running asynchronous induction machines, e.g. cascade arrangement of asynchronous and synchronous machines

|  | H02K 47/28 |
· · · | operating as commutator machines with added slip-rings

|  | H02K 47/30 |
· · | Single-armature phase-number converters without frequency conversion

|  | H02K 49/00 |
Dynamo-electric clutches; Dynamo-electric brakes (electrically or magnetically actuated clutches or brakes Fulltext... Hierarchy... Expanded...F16D 27/00, Fulltext... Hierarchy... Expanded...F16D 29/00, Fulltext... Hierarchy... Expanded...F16D 65/34, Fulltext... Hierarchy... Expanded...F16D 65/36; magnetic-particle clutches Fulltext... Hierarchy... Expanded...F16D 37/02; adapted for use as dynamometers Fulltext... Hierarchy... Expanded...G01L)

|  | H02K 49/02 |
· | Asynchronous induction type

|  | H02K 49/04 |
· · | Eddy-current hysteresis type

|  | H02K 49/06 |
· | Synchronous type

|  | H02K 49/08 |
· | Collector armature type

|  | H02K 49/10 |
· | Permanent-magnet type

|  | H02K 49/12 |
· | Acyclic type

|  | H02K 51/00 |
Dynamo-electric gears, i.e. dynamo-electric means for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts

|  | H02K 53/00 |
Alleged dynamo-electric perpetua mobilia