Grundfos Holding A/s

Grundfos Management A/s

Peter Kjeldsteen

Flemming Buus Bendixen

Allan Ivo Søgaard

Allan Ivo Sogaard Sorensen

Allan Ivo Søgaard SØRENSEN

Flemming Buus Bendixen Bendixen

A magnetic coupling includes an inner rotor () and an outer rotor () which at least partly surrounds the inner rotor (). These rotors () each are formed of magnetic material () and are coupled to one another by way of magnetic forces. The inner rotor () and/or the outer rotor () contain powdery, magnetizable material (). The powdery, magnetizable material () is magnetized at a side lying opposite the other rotor at several locations distributed over the periphery.

Magnetic coupling

A permanent magnet, in particular a permanent magnet rotor for a machine, includes a first sleeve, a first cap and a second cap arranged to close off an inner opening of the first sleeve, and a permanent magnet material formed in the inner opening of the sleeve between the first cap and the second cap. The permanent magnet material is a compressed, non-bonded powder material including hard magnetic powder material, soft magnetic powder material, or a combination of hard and soft magnetic powder material. A method for manufacturing a permanent magnet rotor is also provided.

Permanent magnet, and method for manufacturing a permanent magnet

Growing community of inventors

Ålestrup, Denmark

Peter Kjeldsteen