Linear brushless D.C. motor with stationary armature and field and with integratable magnetic suspension
First Claim
1. A device for causing motion of an object along a set of rails comprising a first rail and a second rail, the device comprising:
- a first conductor attached to the object and a second conductor attached to the object, wherein the first and second conductors are configured to carry electrical currents; and
a source of magnetic flux attached to the object at a position between the first and second conductor, wherein the source of magnetic flux is configured to be positioned between the first and second rail and to provide a suspensive force by inducing a magnetic flux in at least a portion of the first and second rail,wherein an interaction of the magnetic flux and the electric currents causes the object to move along the rails.
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Accused Products
Abstract
This disclosure describes an electromagnetic system for efficient propulsion, suspension, and guidance. The track is inexpensive totally passive steel. This linear form of the D.C. motor provides traction motor characteristics without physical contact, The moveable element (vehicle) comprises both the integrated armature and field magnet flux source which induces magnetizing flux into pairs of rails each energizing a set of interdigitated poles of alternating polarity in the track against which its own armature conductors interact for thrust and braking. This source of magnetic flux requires no power and provides passive suspension at any speed and, with control, guidance. The permanent magnet and control flux in common airgaps multiply the effectiveness of lateral control for magnetic stabilization and to restrain external forces.
26 Citations
16 Claims
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1. A device for causing motion of an object along a set of rails comprising a first rail and a second rail, the device comprising:
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a first conductor attached to the object and a second conductor attached to the object, wherein the first and second conductors are configured to carry electrical currents; and a source of magnetic flux attached to the object at a position between the first and second conductor, wherein the source of magnetic flux is configured to be positioned between the first and second rail and to provide a suspensive force by inducing a magnetic flux in at least a portion of the first and second rail, wherein an interaction of the magnetic flux and the electric currents causes the object to move along the rails. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A levitating propulsion system comprising:
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a first and second rail; a frame; a first conductor attached to the frame and a second conductor attached to the frame, wherein the first and second conductors carries electrical currents; and a source of magnetic flux attached to the frame at a position between the first and second conductor and between the first and second rail, wherein the source of magnetic flux provides a suspensive force by inducing a magnetic flux in at least a portion of the first and second rail, wherein an interaction of the magnetic flux and the electric currents causes the object to move along the rails.
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Specification