Patent · US Active

Electric machine

US7800256B2 · kind B2 · utility

18Cited by

28References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

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

Key dates

Filing date	Mar 21, 2007
Grant date	Sep 21, 2010
Priority date	—
Expiry date	Mar 21, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH02K21/04
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A linear or rotating electric synchronous machine includes a reluctance-secondary part, and a primary part, provided with a coil and permanent magnets. The primary part has teeth, with each tooth surrounded by a coil defining a coil axis. Arranged in each tooth is a permanent magnet which is surrounded by the coil and extends extending in parallel relationship to the coil axis of the coil. The secondary part is constructed for guiding a magnetic field and has teeth which define with the teeth of the primary part an air gap. The permanent magnet defines a magnetization direction in parallel to an air gap plane of the air gap, with the magnetization direction reversing from tooth to tooth.

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