Patent · US Expired

Device for controlling a connection between a pressure medium source and a fluid supply container in a pressure medium operated system

US4506859A · kind A · utility

2Cited by

5References

8Claims

0Family size

Assignee

Mannesmann Rexroth AG · DE

Inventors

Hubertus Schmidt · Pocking, DE
Norbert Mucheyer · Lohr am Main, DE

Key dates

Filing date	Mar 1, 1983
Grant date	Mar 26, 1985
Priority date	—
Expiry date	Mar 1, 2003

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B49/225
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A device for controlling the connection between a pressure medium source and a medium supply container is provided in a pressure medium operated system. The device includes a control valve with a housing formed with a longitudinal bore, in which a valve member is axially displaced between two end positions by pressure of the pressure medium. The valve member includes a piston and a seat portion facing a valve seat formed in the valve housing. The piston is of the diameter larger than that of the valve seat. A bore connected to the medium supply container is provided in the valve housing which is controlled by displacement of the piston.

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