Patent · US Expired

Pressure control valve

US5295663A · kind A · utility

3Cited by

0References

22Claims

0Family size

Assignee

Mannesmann Rexroth AG · DE

Inventors

Gotz-Dieter Machat · Lohr am Main, DE
Eugen Ebert · Lohr, DE
Hans Wolfges · Lohr, DE

Key dates

Filing date	Dec 28, 1992
Grant date	Mar 22, 1994
Priority date	—
Expiry date	Dec 28, 2012

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7766
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A pressure control valve is provided comprising an inlet bore, an annular channel and a control spool. So as to obtain a low control deviation and good stability an annular channel is provided at the outlet side of the valve. The axial extension of said annular channel is smaller than the outlet flow area formed by said bores.

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