Valve apparatus and method for controlling fluid flow

Details Valve apparatus and method for controlling fluid flow Valve apparatus and method for controlling fluid flow

1992-02-21

1993-03-30

Rosenthal, Arnold

Fluid handling

Processes

1376254, 25112904, 25112908, F16K 3106, F16K 144

Patent

active

051975084

ABSTRACT:
A valve device and method for controlling the operation of the valve device, in particular a proportionally acting solenoid valve, consisting of a valve housing in which several pressure fluid chambers provided with pressure fluid connections are present, having two valves which are arranged within the valve housing and are providing with moveable valve members, the valve members being connected to a valve rod which serves for actuation.
In order to simplify the construction of the valve, and provide reliable and reproducible detection and control of the valve opening cross section, two valves members (4, 5) and (12, 13) of the two valves are arranged coaxially and are jointly connected to a valve rod (20), actuatable simultaneously with it. A pressure fluid chamber is arranged between the valves. A permanent magnet (9) is arranged on or in the valve rod (20) for detecting the position of the valve rod in such a manner that the range of the displacement path produced by actuation of the valve rod lies within the pressure fluid chamber (10). A field sensor 29 extends through the valve housing wall into the corresponding pressure fluid chamber (10).

REFERENCES:
patent: 4286626 (1981-09-01), Leiber
patent: 4310143 (1982-01-01), Determan
patent: 4452267 (1984-06-01), Ott et al.

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