Patent · US Expired

Pressure control valve

US5503184A · kind A · utility

25Cited by

11References

9Claims

0Family size

Assignee

ITT Automotive Europe GmbH · DE

Inventors

Hans-Dieter Reinartz · Frankfurt am Main, DE
Peter Volz · Darmstadt, DE
Erhard Beck · Darmstadt, DE

Key dates

Filing date	May 11, 1994
Grant date	Apr 2, 1996
Priority date	—
Expiry date	May 11, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/86791
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A pressure control valve with a valve-closing member which is axially movably guided within a valve housing and which is capable of adjusting a passage between a first pressure agent connection and at least one second pressure agent connection depending on its position being variable in respect of a valve seat, pressure agent transition ducts to be shut off or opened up directly one after the other by the valve-closing member being positioned between the first and the second pressure agent connections for the reduction of the noise of the valve, which said pressure agent transition ducts form a variable cross-sectional area of the valve opening.

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