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US 2022/0090701 A1Published application
Control valve position detection
AssigneeWOCO Industrietechnik GmbH
InventorEberhard GEISSEL
Life of this patent
Estimating the term…
Abstract
A method for detecting the position of an actuator includes adjustment of a control valve by an actuator. An actuator-characteristic operating variable may include a drive power, a drive operating force and/or a drive torque, and is detected continuously or discontinuously for determining the actuator position.
Claims17
A method comprising:
- detecting a position of an actuator of a control valve through detection of an actuator-characteristic operating variable, wherein the control valve can be adjusted by an actuator and the actuator-characteristic operating variable comprises a drive power, a drive operating force, or a drive torque;
- and
- determining the actuator position based on the detection of the actuator-characteristic operating variable.
A control valve position detection device for a control valve, the control valve device comprising:
- a control element configured to be adjusted by a drive;
- and
- electronics configured to detect a position of the control element based on an actuator-characteristic operating variable, the actuator-characteristic operating variable comprising a drive power, a drive actuating force, or a drive torque.
A directional control valve for adjusting a process fluid flow, comprising:
- at least one fluid channel;
- an actuator for closing and at least partially opening one of the at least one fluid channels;
- a drive coupled to the actuator for applying actuating forces;
- and
- a control valve position detection device comprising:
- a control element configured to be adjusted by the drive;
- and
- electronics configured to detect a position of the control element based on an actuator-characteristic operating variable.
5 more elements
Dependencies are inferred from the claim text.