Buerkert Werke Gmbh & Co. Kg

Patrick Mohs

Ralf Scheibe

Johannes Baumann

Markus Klaiber

Fabian Mittnacht

Rainer Kuenzler

Matthias Boehringer

Ralf Egner

Nathalie Kettemann

A dosing device has a dosing tip for dispensing liquid medium and at least one pressure vessel with a pressurizing gas, in which an overpressure or a negative pressure can be set as a predefined pressure setpoint value of an internal pressure by a pressure regulator, wherein the internal pressure is set by the pressurizing gas acting on a first liquid medium. A bidirectional flow meter is provided to measure a quantity of the first medium that is moved by the internal pressure prevailing in the pressure vessel. Furthermore, a dosing valve is provided upstream of the dosing tip, which is adapted to enable or disable a flow of the first medium from the flow meter to the dosing tip. For precise dosing, the first medium is moved by a change in the predefined pressure setpoint value of the internal pressure of at least one pressure vessel, and the moved quantity of the first medium is measured by the flow meter.

Dosing device and method of dosing liquid media

A valve includes an electrodynamic actuator which has a magnet arrangement for generating a magnetic field and a control element movable relative to the magnet arrangement. The control element includes an energizable coil which is arranged in the magnetic field and is firmly coupled to a coil carrier. The control element is movable between at least two defined positions. There are provided permanent-magnetically interacting holding force which retain the control element in at least one of the defined positions, even when the coil is currentless.

Valve with energy-saving electrodynamic actuator

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Ingelfingen, Germany

Patrick Mohs