High speed motor/generator for turbocharger

Details High speed motor/generator for turbocharger High speed motor/generator for turbocharger

1989-10-24

1990-06-19

Wong, Peter S.

Electrical generator or motor structure

Dynamoelectric

Rotary

60608, 310113, 417407, H02K 4720, F02B 3700

Patent

active

049356569

ABSTRACT:
A high-speed motor/generator drivable by a turbine includes a rotor mounted on the shaft of the turbine. Since the magnetic flux produced by the magnet of the rotor vary at a high frequency, a ferrite core of good high frequency characteristics is employed as a stator core confronting the rotor to reduce a high-frequency loss. To improve the flux density and magnetic permeability of the ferrite core (which one poorer than those of a core of silicon steel plates), the magnet of the rotor has a number of magnetic poles to increase the frequency at which the magnetic flux is varied, so that the electromotive force produced is increased.

REFERENCES:
patent: 4223263 (1980-09-01), Hansen, Jr. et al.
patent: 4253031 (1981-02-01), Frister
patent: 4445061 (1984-04-01), Jackson, Jr.
patent: 4605874 (1986-08-01), Whiteley
patent: 4625135 (1986-11-01), Kasabian
patent: 4769993 (1988-09-01), Kawamura
patent: 4827170 (1989-05-01), Kawamura et al.
patent: 4850820 (1989-07-01), Gutknecht
patent: 4878347 (1989-11-01), Kawamura

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