Levitronix Gmbh

Mario Haefliger

Natale Barletta

Pascal Boesch

A centrifugal pump is proposed having a pump housing () which has an inlet () and an outlet (), a rotor () having a front side () facing the inlet () and a rear side () remote from the inlet (), and wherein the rotor () has a first pump wheel () having first vanes () for the generation of a main flow from the inlet () to the outlet (), wherein a second pump wheel () having second vanes () and having at least one relief bore () is provided at the rotor () for the generation of a recirculation flow which is directed from the rear side () of the rotor () through the at least one relief bore () and wherein a partition element (), which separates the recirculation flow at least partly from the main flow in the region of the second pump wheel (), is provided between the two pump wheels (). A method for the compensation of the axial thrust in a centrifugal pump is furthermore proposed.

Centrifugal pump and method for compensating the axial thrust in a centrifugal pump

A flowmeter having an inlet through which the medium can flow into a measurement zone and having an outlet through which the medium can flow out, wherein a damping device is provided in front of the inlet, and has a first mass which can be flowed through having a first inlet and a first outlet for the medium, a second mass which can be flowed through having a second inlet and a second outlet for the medium as well as a flow connection which is capable of vibration and which connects the first outlet to the second inlet, wherein a minimal flow cross-section (d) of the flow connection is smaller than the inlet cross-section (E) at the first inlet or smaller than the outlet cross-section (A) at the second outlet.

Growing community of inventors

Sarmenstorf, Switzerland

Mario Haefliger