Patent ID: 7906885

Claim:
A brushless electric machine comprising: a rotor including a plurality of magnetic elements containing permanent magnet arranged along a circumferential direction about a revolving shaft to form a rotor wheel-shaped ring, with each said magnetic element having respectively two magnetic poles; and a stator including a plurality of magnetically isolated electromagnetic members coaxially arranged around the revolving shaft to form a stator wheel-shaped ring, each said electromagnetic member having twin poles, wherein each pole of the twin poles of the electromagnetic members of the stator corresponds to one magnetic pole of the magnetic poles of the magnetic elements of the rotor respectively, wherein two radial component air-gaps are arranged between the stator and the rotor to separate the stator from the rotor, wherein axially aligned axial component air-gaps are arranged between the stator pole and the corresponding rotor pole to separate the stator pole from the corresponding rotor pole, and wherein stator wheel-shaped ring is partly surrounded by the rotor wheel-shaped ring.