Constant reluctance rotating magnetic field devices with laminat

Details Constant reluctance rotating magnetic field devices with laminat Constant reluctance rotating magnetic field devices with laminat

Filed on

1997-08-11

Date issued

1999-05-25

Examiner

Ramirez, Nestor

Patent Class

Electrical generator or motor structure

SubClass

Dynamoelectric

SubSubClass

Rotary

Other Related Categories

310156, 310179, 310180, 310184, H02K 2100

Type

Patent

Status

active

Patent number

059072059

Description

ABSTRACT:
A rotary magnetic field device for use in a dc motor or generator, or an ac motoer or generator. The device has a permanent magnet rotor, stator field windings and an outer cylindrical stator piece preferably being a continuous wire wrapping. The stator wire is magnetically permeable (silicon iron or steel). The stator wire, being transverse to the magnetic field assures low eddy current loss. The rotor is a material having a high energy product (BH.sub.max) preferably a neodymium-iron-boron compound. When used as a dc motor, the motor is characterized by exhibiting no ripple and economy of construction.

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