Patent · US Active

Linear motor with force ripple compensation

US7948123B2 · kind B2 · utility

4Cited by

1References

17Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Zeljko Jajtic · Birkenfeld, DE
Christian Volmert · Munich, DE

Key dates

Filing date	Jul 25, 2007
Grant date	May 24, 2011
Priority date	—
Expiry date	Nov 29, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2213/03
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a primary part (2) for an electrical machine (1), with the primary part (2) being formed at least from a laminated core (3) and having at least one element (11) for reduction of the force ripple adjacent to one or both of its respective end faces (S1, S2), with the element (11) being electrically conductive (κel>0) and having negligibly low magnetic permeability (μr≅1).

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