Eddy current brake
AssigneeMagnetar Technologies, Inc.
InventorEdward M. Pribonic
Life of this patent
Estimating the term…
Abstract
An eddy current brake includes a diamagnetic member, a first support wall and a second support wall with the first and second linear arrays of permanent magnets disposed on the walls facing one another. Apparatus is provided for moving at least one of the walls in order to control eddy current induced in the member in the passage of the member therepast to adjust the braking force between the magnets and the member. Apparatus is also provided for causing the velocity of the member to change the braking force between the magnets and the member.
Claims10
An eddy current brake comprising:
- a diamagnetic or non-magnetic member;
- a first support wall;
- a separate second support wall disposed in a spaced apart relationship with said first support wall for enabling the member to pass therebetween;
- a first linear array of permanent magnets disposed on the first wall on a side of the first wall facing the second wall;
- a second linear array of permanent magnets disposed on the second wall on a side of the second wall facing the first wall, the first and second arrays being parallel with one another;
- and
- apparatus for adjusting eddy current induced in the member, and braking force, as a function of velocity of the member between the arrays, said apparatus including linkages for enabling movement of the member therepast to change the spaced apart relationship between the first and second walls.
Eddy current braking apparatus comprising:
- a diamagnetic or non-magnetic member;
- a linear array of permanent magnets including a channel and a plurality of magnets disposed therein, the magnets being arranged within said channel in two adjacent rows, each magnet in each row being arranged with a magnetic field at a 90° angle to another adjacent magnets in each row along the channel, each magnet in each row also being arranged with a magnetic field at an angle to another adjacent magnet in the adjacent row;
- and;
- means, mounting the linear array with respect to the member, for enabling passage past one another at a distance sufficient to cause eddy currents to be induced in the member resulting in a braking force between the linear array and the member.
An eddy current brake comprising:
- a diamagnetic or non-magnetic member;
- a first linear array of permanent magnets;
- a second linear array of permanent magnets disposed in a spaced apart relationship with said first linear array for enabling the member to pass therebetween, the first and second arrays being parallel with one another;
- and
- apparatus for adjusting eddy current induced in the member, and braking force, as a function of velocity of the member between the arrays, said apparatus including linkages for enabling movement of the member therepast to change the spaced apart relationship between the first and second arrays.
Dependencies are inferred from the claim text.