Valve device with a valve based on an electrodynamic actuator and method for controlling a valve with an electrodynamic actuator

US9856993B2 · kind B2 · utility

Assignee

• BUERKERT WERKE GMBH · DE

Inventors

• Maik Fuchs · Dresden, DE
• Ralf Scheibe · Künzelsau, DE
• Sebastian Kahl · Forchtenberg, DE

Key dates

• Filing date: Nov 30, 2015
• Grant date: Jan 2, 2018
• Expiry date: Feb 17, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F2007/1822
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A valve device includes a valve having an electrodynamic actuator. The electrodynamic actuator includes a movably mounted control element having a coil and a magnet arrangement immovable relative to the coil. A driving force caused by energization of the coil and transmitted to the control element substantially is linearly dependent on the current intensity. A front-end electronic unit is connected with the coil and includes a capacitor connected in parallel to the coil. A method for controlling a valve as mentioned above provides that, upon actuation of the electrodynamic actuator, during energization of the coil by a voltage source, a capacitor connected in parallel to the coil is charged. After termination of the energization by the voltage source, the coil is energized further by a discharge of the capacitor.