Patent · US Expired

Electromagnetically operated pressure switching valve

US5651530A · kind A · utility

8Cited by

7References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Erwin Krimmer · Plüderhausen, DE
Tilman Miehle · Weingarten, DE
Steffen Schumacher · Renningen, DE

Key dates

Filing date	Dec 15, 1995
Grant date	Jul 29, 1997
Priority date	—
Expiry date	Dec 15, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/86622
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An electromagnetically operated pressure switching valve has a valve housing, a magnet coil arranged inside the valve housing, a magnet core associated with the magnet coil and having a passage for a pressure medium provided with a valve seat, a magnet armature, a valve closing element arranged in the valve housing for controlling a flow of the pressure medium. The magnet armature has a portion extending in the magnet coil to an area of a greater magnetic flux density. The portion of the magnet armature cooperates with the valve seat of the passage and is limited by a ring-shaped circular flange-like edge extending outside of the magnet coil.

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