Device for delivering single-phase or multiphase fluids without altering the properties thereof

A delivery device for a single or multiphase fluid, comprising:

• a tubular body for axially guiding the fluid;
• a motor stator arranged outside the tubular body;
• a delivery element arranged within the tubular body and comprising a motor rotor;
• a rotor gap formed between the delivery element and the hollow body for allowing the fluid to pass through;
• mounting arrangements fixedly disposed in axial direction on each side of the delivery element within the tubular body;
• hub gaps formed between the delivery element and the fixedly disposed mounting arrangement;
• first permanent magnet bearing elements disposed in the mounting arrangement;
• second permanent magnet bearing elements disposed in the delivery element;
• wherein the first and the second permanent magnet bearing elements functionally work together and are magnetized in axial direction and have opposite polarity;
• position sensors associated with each of the first permanent magnet bearing elements;
• a stabilizer disposed around the hollow body;
• wherein the delivery element is arranged without contacting the mounting elements by means of the first and second permanent magnetic bearing elements, the delivery element is rotatable by the motor stator;
• and
• wherein the sensors and the stabilizer are utilized for determining the position and possible correction of the position of the delivery element.