Patent · US Active

Solenoid valve

US7404541B2 · kind B2 · utility

1Cited by

5References

24Claims

0Family size

Assignee

FESTO AG & CO. · US

Inventors

Rolf Berger · Neckartenzlingen, DE
Volkart Diehl · Eßlingen, DE

Key dates

Filing date	Apr 20, 2006
Grant date	Jul 29, 2008
Priority date	—
Expiry date	Jan 3, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH01F7/081
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A solenoid valve comprises a valve chamber between a base body and a magnet head and in the valve chamber a magnet armature functioning as a valve member is located. The actuation of the magnet armature takes place by activation of an electromagnet means, which possesses a magnet core arrangement with a plurality of pole faces facing the magnet armature. In order to reduce the impact of the magnet armature a damping plate arrangement is located between the magnet armature and the pole faces, such plate arrangement being in the form of a material which is not ferromagnetic.

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