Compact halbach electrical generator for integration in a solid body
AssigneesLuxembourg Institute of Science and Technology (List), Luxembourg Patent Company S.A.
InventorsMathieu GERARD, Jérôme POLESEL MARIS
Life of this patent
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Abstract
An electric generator comprising a rotor with permanent magnets, configured for rotating about a rotation axis; at least one magnetic yoke with at least two arms extending axially inside or outside of the rotor so as to be adjacent to the radial inner or outer side, respectively, of the rotor; wherein the permanent magnets are arranged according to an Halbach array so as to maximize the magnetic field on the radial side of the rotor adjacent to the arms of the at least one yoke. Also, a valve for gas cylinder, equipped with a corresponding electric generator.
Claims21
-19. (canceled)
An electric generator, said generator comprising:
- a rotor with permanent magnets, configured for rotating about a rotation axis;
- at least one magnetic yoke with at least two arms extending axially inside or outside of the rotor so as to be adjacent to the radial inner or outer side, respectively, of the rotor;
- wherein the permanent magnets are arranged according to a Halbach array so as to maximize the magnetic field on the radial side of the rotor adjacent to the arms of the at least one yoke.
A valve for gas cylinder, said valve comprising:
- a body with an inlet, an outlet and a passage interconnecting the inlet and outlet;
- a flow control device mounted on the body and controlling the flow of gas in the passage;
- an electric generator with a turbine wheel located in the passage, configured for outputting electric power when the gas flow in the passage rotates the turbine wheel;
- wherein the electric generator comprises:
- a rotor with permanent magnets, configured for rotating about a rotation axis;
- at least one magnetic yoke with at least two arms extending axially inside or outside of the rotor so as to be adjacent to the radial inner or outer side, respectively, of the rotor;
- wherein the permanent magnets are arranged according to an Halbach array so as to maximize the magnetic field on the radial side of the rotor adjacent to the arms of the at least one yoke.
A conduit with a wall delimiting a passage for a fluid and with an electric generator with a turbine wheel located in the passage so as to be driven when the fluid flows, wherein the electric generator comprises:
- a rotor with permanent magnets, configured for rotating about a rotation axis;
- at least one magnetic yoke with at least two arms extending axially inside or outside of the rotor so as to be adjacent to the radial inner or outer side, respectively, of the rotor;
- wherein the permanent magnets are arranged according to an Halbach array so as to maximize the magnetic field on the radial side of the rotor adjacent to the arms of the at least one yoke.
Dependencies are inferred from the claim text.