Patent · US Active

Linear motor with force ripple compensation

US8076804B2 · kind B2 · utility

6Cited by

9References

12Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

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

Key dates

Filing date	Jul 26, 2007
Grant date	Dec 13, 2011
Priority date	—
Expiry date	Jul 26, 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 component (2) for an electric motor (1), said primary component (2) being formed from at least one bundle of laminations (3) and comprises at least one flux guiding element (10) on one or both front faces (S1, S2) to reduce the ripple effect, said primary component (2) being separated from a secondary component (7) by a first air gap (δ1). The primary component (2) has at least one section (δ2) in the region of the flux guiding element (10), said section (δ2) being electrically non-conducting (Kel=0) and having a negligibly low magnetic permeability (μr≅1).

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