Fondazione Istituto Italiano Di Tecnologia

Luca Brayda

Giulio Sandini

Franco Bertora

Giorgio Zini

Diego Torazza

An electromagnetic actuator comprising a moving armature () comprising a pin () and a permanent magnet arrangement () arranged coaxially with the pin () and secured to it, and an excitation coil arrangement () arranged coaxially with the pin (). The coil arrangement () is suppliable with a current to cause a movement of the movable armature (). The actuator further comprises a surface () of ferromagnetic material. The permanent magnet arrangement () is axially interposed between the surface () of ferromagnetic material and the excitation coil arrangement (). The permanent magnet arrangement () comprises a plurality of permanent magnet regions () arranged around the pin () of the moving armature (), wherein each permanent magnet region () has a polarity opposite to the polarities of the permanent magnet regions () angularly adjacent thereto. The excitation coil arrangement () comprises a coil having a lobed shape.

Growing community of inventors

Campomorone, Italy

Luca Brayda