Passive magnetic bearing element with minimal power losses

Patent · Thu Jan 01 00:00:00 EST 1998

OSTI ID:872032

Post, Richard F ^[1]

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1. Walnut Creek, CA

Systems employing passive magnetic bearing elements having minimal power losses are provided. Improved stabilizing elements are shown, employing periodic magnet arrays and inductively loaded circuits, but with improved characteristics compared to the elements disclosed in U.S. Patent No. 5,495,221 entitled "Dynamically Stable Magnetic Suspension/Bearing System." The improvements relate to increasing the magnitude of the force derivative, while at the same time reducing the power dissipated during the normal operation of the bearing system, to provide a passive bearing system that has virtually no losses under equilibrium conditions, that is, when the supported system is not subject to any accelerations except those of gravity.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5847480
• OSTI ID: 872032
• Country of Publication: United States
• Language: English

Related Subjects

passive
magnetic
bearing
element
minimal
power
losses
systems
employing
elements
provided
improved
stabilizing
shown
periodic
magnet
arrays
inductively
loaded
circuits
characteristics
compared
disclosed
495
221
entitled
dynamically
stable
suspension
improvements
relate
increasing
magnitude
force
derivative
time
reducing
dissipated
normal
operation
provide
virtually
equilibrium
conditions
supported
subject
accelerations
gravity
bearing element
improved characteristics
passive magnetic
power loss
bearing elements
magnetic bearing
normal operation
magnet arrays
power dissipated
power losses
minimal power
systems employing
stable magnetic
passive bearing
systems employ
inductively loaded
periodic magnet
stabilizing element
dynamically stable
magnetic suspension
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