Patent · US Expired

Magnetic valve

US4512549A · kind A · utility

9Cited by

6References

7Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Theodor Gast · Berlin, DE
Hans Kubach · Ditzingen, DE
Kurt Binder · Stuttgart, DE

Key dates

Filing date	Aug 25, 1982
Grant date	Apr 23, 1985
Priority date	—
Expiry date	Aug 25, 2002

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K31/082
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A magnetic valve in which two cylindrical soft-iron cores are provided which are disposed parallel to one another. The soft-iron cores are each surrounded by a coil. An armature of magnetically conductive material which carries a valve body is caused to move inside the soft-iron cores. Between the two coils, an axially magnetized permanent magnet is disposed in circular-annular fashion. The soft-iron cores have a magnetic short-circuit connecting them with one another.

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