Patent · US Active

Solenoid

US8134439B2 · kind B2 · utility

1Cited by

11References

4Claims

0Family size

Assignee

Dipl-Ing. Wolfgang E. Schultz · DE

Inventors

Georg Scherer · Tauberbischofsheim, DE
Helmut Mang · Memmingen, DE

Key dates

Filing date	Sep 10, 2008
Grant date	Mar 13, 2012
Priority date	—
Expiry date	Sep 8, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH01F7/128
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A solenoid, in particular for switching pressure controllers or pressure valves, including an armature movable in an armature space, and a coil which can be impinged by current. When the coil is impinged by current, a magnetic field is generated serving for moving the armature, and the armature space can be filled with oil. For de-airing the armature space at least one de-airing channel is provided. In the de-airing channel at least one backflow-preventing element is provided which is permeable in the direction of de-airing.

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