Electromagnetic device with reversible generator-motor operation
AssigneeAVIO S.p.A.
InventorMarco Cipriani
Life of this patent
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Abstract
An electromagnetic device has a stator and a rotor rotating between facing surfaces of the stator and bearing a plurality of magnets distributed at regular intervals along its periphery. The magnets are so arranged that they form a sequence of alternately opposite poles on the surfaces of the rotor directed towards the stator, and the stator comprises two sets of independently supported magnetic yokes located at both sides of the rotor in front of the magnets. The magnetic yokes have two axially oriented arms, the end surfaces of which, in static conditions of the rotor, at least partly face a pair of successive magnets on a same surface of the rotor.
Claims37
An electromagnetic device with reversible generator-motor operation, the device comprising:
- a rotor rotating about an axis and bearing a plurality of magnets distributed at regular intervals there around and with alternate orientations in a substantially ring-shaped pattern;
- a stator comprising at least one set of individual magnetic yokes each having a pair of projecting arms that extend towards the magnets and bear a respective coil for electrical connection to a utilising device or a power driver, a magnetic yoke in each set being part together with a pair of magnets confronting the yoke arms at a given instant, and an air gap separating the yoke from the magnets, of a same closed magnetic circuit;
- the individual magnetic yokes being independently mounted on supports that are adjustable by a mechanism under the control of an electronic control unit to dynamically adjust the positions of the individual magnetic yokes relative to the magnets during operation of the device.
Dependencies are inferred from the claim text.