Superconductor electromagnet
AssigneeTokamak Energy Ltd
InventorTony Langtry
Life of this patent
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Abstract
An electromagnet comprising having one or more channels. Each channel has provided therein a conductor element comprising one or more layers of superconductor material for conducting electrical current along an axis of the channel. The conductor element is arranged to contact sidewalls of the channel through first and second wedge surfaces that are inclined with respect to one another such that a force biasing the conductor element in a direction perpendicular to the axis generates opposing contact forces on the wedge surfaces that act to compress the conductor element along a direction with a component perpendicular to the force.
Claims20
An electromagnet comprising one or more channels, each channel having provided therein:
- a conductor element including one or more layers of superconductor material for conducting electrical current along an axis of the channel, the conductor element being arranged to contact first and second sidewalls of the channel through respective first and second wedge surfaces that are inclined with respect to one another such that a Lorentz force biasing the conductor element in a direction perpendicular to the axis generates opposing contact forces on the first and second wedge surfaces that act to compress the conductor element along a direction with a component perpendicular to the Lorentz force.
A central column for a toroidal field coil of a tokamak plasma chamber, the central column comprising a support member having a plurality of channels spaced around a central axis, each channel having provided therein a conductor element including one or more layers of superconductor material for conducting electrical current parallel to the central axis, the conductor element being arranged to contact first and second sidewalls of the channel through respective first and second wedge surfaces that are inclined with respect to one another such that a radial force biasing the conductor element towards the central axis generates opposing contact forces on the first and second wedge surfaces that act to compress the conductor element along a direction with a component perpendicular to the radial force.
Dependencies are inferred from the claim text.