Patent · US Active

Rotary transformer for transmission of electrical energy or information

US7304559B2 · kind B2 · utility

2Cited by

4References

4Claims

0Family size

Assignee

PRUEFTECHNIK DIETER BUSCH AG · DE

Inventors

Ralf Förtsch · Freising, DE
Werner Mühleisen · Birkenfeld, DE
Roland Hölzl · Birkenfeld, DE

Key dates

Filing date	Oct 4, 2006
Grant date	Dec 4, 2007
Priority date	—
Expiry date	Oct 4, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH01F2038/143
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A device for efficient transmission of electrical energy and/or information is built in the manner of a rotary transformer. The cores of this device are made of ferromagnetic rings of a U-shaped cross section of soft iron, or of soft iron core stacks of annular or hollow cylindrical shape, the ring-shaped or hollow cylindrical sheets typically being unslotted. There can be several coil sets within such a device; in this way several channels can be made available for parallel transmission of electrical energy and/or information.

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