Small generator

Details Small generator Small generator

1996-10-23

1998-09-22

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310186, 310216, 310254, 310261, 29598, H02K 116, H02K 1728

Patent

active

058119078

ABSTRACT:
A small generator comprising a stator having slots on the inner circumferential surface thereof and generating windings wound on the slots, and a salient-pole type rotor freely rotating inside the stator, in which the stator has a plurality of recesses whose width is essentially the same as the width of openings of the slots and whose area is smaller than the area of the slots, provided at the same intervals as the circumferential intervals of the slots in the vicinity of the opening of the slots; the rotor has circular-arc shaped bulged portions formed outside a shaft hole on the rotor, and crimping portions whose width is smaller than the diameter of a shaft hole provided at the center of the bulged portions; the width of the magnetic path of the rotor winding portion is made more than twice as large as the minimum slot back length of the slots provided on the stator.

REFERENCES:
patent: Re28705 (1976-02-01), Hoffmeyer
patent: 2731574 (1956-01-01), Soredal
patent: 3062978 (1962-11-01), Smith
patent: 3783318 (1974-01-01), Widstrand
patent: 5338996 (1994-08-01), Yamanoto
patent: 5349741 (1994-09-01), Neuenschwander
patent: 5428257 (1995-06-01), Lurkens

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