Valve
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United States of America Patent
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Aug 18, 2020
Grant Date -
Jun 22, 2017
app pub date -
Dec 17, 2016
filing date -
Dec 18, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a valve (10, 50, 52) for operating a pressurizing medium driven actuator of a process control valve for technical process equipment, comprising a valve seat (14) in a basic valve body (48), a closing body (12) and an electromagnetic drive (18, 30), which closing body (12) is ball -shaped and cooperates with a valve seat (14) so as to block the flow from an inlet side to an outlet side, said closing body (12) cooperating with a piston surface (20) which can be moved within a piston chamber (25) connected to the inlet side, characterized in that a connecting element (17) is provided between the closing body (12) and the piston surface (20) which is actively connected to an armature (18) of an electromagnetic linear direct drive, with a coil assembly (30) being embedded in the basic valve body (28) and a magnetic field with alternating polarity in the axial direction being present at the armature (18).
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