Patent · US Active

Arrangement of stringed solenoid drives

US8421563B2 · kind B2 · utility

0Cited by

3References

18Claims

0Family size

Assignee

BUERKERT WERKE GMBH · DE

Inventors

Olaf Beyer · Dresden, DE
Claus Brust · Schrozberg, DE
Rainer Künzler · Künzelsau, DE
Simone Müller · Stuttgart, DE
Ralf Scheibe · Künzelsau, DE

Key dates

Filing date	Sep 24, 2008
Grant date	Apr 16, 2013
Priority date	—
Expiry date	Mar 17, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K31/082
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to an arrangement of stringed solenoid drives (1, 2, 3), particularly for solenoid valves, wherein each solenoid drive comprises a magnetic circuit with a yoke (4), moveable armature (5), and an excitation coil (6) arranged on the yoke. The magnetic circuits of neighboring solenoid drives have pre-magnetization with the same polarity and at least approximately the same strength. Due to the pre-magnetization, the magnetic potential difference between neighboring magnetic circuits is reduced. The pre-magnetization is thus carried out with the same polarity as the excitation by current flow in the excitation coil.

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