Patent · US Active

Pressure regulating valve

US8505873B2 · kind B2 · utility

0Cited by

7References

13Claims

0Family size

Assignee

Continental Teves AG & Co. OHG · DE

Inventors

Christian Courth · Frankfurt, DE
Christoph Voss · Frankfurt, DE
Harald Biller · Eschborn, DE
Joachim Bohn · Hundsangen, DE
Holger Kollmann · Rodgau, DE
José Garcia-Quilon · Schongau, DE

Key dates

Filing date	Nov 5, 2008
Grant date	Aug 13, 2013
Priority date	—
Expiry date	Jul 23, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG05D16/2022
WIPO fieldControl
WIPO sectorInstruments

Abstract

A pressure regulating valve having a compression spring fixed in a valve housing for positioning a valve plunger connected to a magnetic armature in the position above a valve seat and not electromagnetically excited, in order to create a connection between at least two pressure medium channels opening into the valve housing, and having a further compression spring disposed coaxially to the first compression spring in the valve housing, having the characteristic that the first compression spring is designed as a control spring forming a stroke and force-specific spring drive by adjusting the spring rates of both compression springs to the force/distance curve of an electromagnet by varying the current in an exciter coil, wherein the further compression spring is designed as a variably adjustable spring acting opposite to the control spring.

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