Patent · US Expired

Spherical bearing for electrical machines with permanent magnetic rotors

US6713918B2 · kind B2 · utility

2Cited by

8References

13Claims

0Family size

Assignees

Oliver Laing · DE
Karsten Laing · DE
Birger Laing · DE

Inventor

Karsten Laing · Althütte, DE

Key dates

Filing date	May 20, 2002
Grant date	Mar 30, 2004
Priority date	—
Expiry date	May 20, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH02K7/088
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In the motor assembly of a pump in which a magnetic rotor is balanced on a spherical bearing projecting into an axial cavity of said rotor assembly, the bearing surface inside the cavity is shaped and dimensioned to stabilize the rotor assembly in the presence of diverging magnetic forces generated by the permanent magnets forming the core of the rotor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.