Method for controlling a reciprocating piston pump and device for carrying out the method

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United States of America Patent

PATENT NO 10670009
APP PUB NO 20170241413A1
SERIAL NO

15503258

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Abstract

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A controller of an electromagnetically driven reciprocating pump influences velocity of the magnetic armature by switching voltage applied to the electromagnet depending on the position of the magnetic armature, its position determined from state variables of the electromagnet. A processor calculates electrical resistance of the magnetic coil from the voltage and current measured by the measuring device, and calculates the temporal change of the linked magnetic flux in the electromagnet from the electrical voltage, the current and the resistance of the magnetic coil, and calculates the linked magnetic flux in the electromagnet from an earlier magnetic flux and from the temporal change, and determines the position of the magnetic armature from the linked magnetic flux in the electromagnet and the electrical current through the magnetic coil, and switches the voltage at the magnetic coil by the switching device depending on the position of the magnetic armature.

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Patent Owner(s)

Patent OwnerAddress
TECHNISCHE UNIVERSITAT DRESDENDRESDEN DRESDEN FREE STATE OF SAXONY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kramer, Thomas Dresden, DE 201 2914
Müller, Axel Siegen, DE 12 58
Ohligschlager, Olaf Grünebach, DE 5 7
Petzold, Martin Dresden, DE 6 5
Weber, Jürgen Dresden, DE 46 125

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