Mixed-mu superconducting bearings

Hull, John R; Mulcahy, Thomas M

Title: Mixed-mu superconducting bearings

Abstract

A mixed-mu superconducting bearing including a ferrite structure disposed for rotation adjacent a stationary superconductor material structure and a stationary permanent magnet structure. The ferrite structure is levitated by said stationary permanent magnet structure.

Inventors:

Hull, John R ^[1]; Mulcahy, Thomas M ^[2]

Hinsdale, IL
Western Springs, IL

Issue Date:: 1998-03-03

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

OSTI Identifier:: 871390

Patent Number(s):: 5722303

Assignee:: University of Chicago (Chicago, IL)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16F - SPRINGS

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

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F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16F - SPRINGS
F16F15/3156 - {Arrangement of the bearings}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T74/212 - Containing fiber or filament

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16C - SHAFTS
F16C2361/55 - Flywheel systems
F16C32/0438 - {with a superconducting body, e.g. a body made of high temperature superconducting material such as YBaCuO}

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16F - SPRINGS
F16F15/315 - characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T74/2119 - Structural detail, e.g., material, configuration, superconductor, discs, laminated, etc.

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DOE Contract Number:: W-31109-ENG-38

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: mixed-mu; superconducting; bearings; bearing; including; ferrite; structure; disposed; rotation; adjacent; stationary; superconductor; material; permanent; magnet; levitated; superconducting bearing; superconducting bearings; stationary permanent; permanent magnet; structure disposed; superconductor material; rotation adjacent; stationary superconductor; bearing including; material structure; mixed-mu superconducting; magnet structure; ferrite structure; /74/310/505/

Citation Formats


                    Hull, John R, and Mulcahy, Thomas M. Mixed-mu superconducting bearings.  United States: N. p., 1998. 
        Web.

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                    Hull, John R, & Mulcahy, Thomas M. Mixed-mu superconducting bearings.  United States.

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                    Hull, John R, and Mulcahy, Thomas M. Tue .  
        "Mixed-mu superconducting bearings".  United States.  https://www.osti.gov/servlets/purl/871390.

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@article{osti_871390,

  title        = {Mixed-mu superconducting bearings},

  author       = {Hull, John R and Mulcahy, Thomas M},

  abstractNote = {A mixed-mu superconducting bearing including a ferrite structure disposed for rotation adjacent a stationary superconductor material structure and a stationary permanent magnet structure. The ferrite structure is levitated by said stationary permanent magnet structure.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1998},

  month        = {3}

}

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Works referenced in this record:

Levitation force and magnetic stiffness in bulk high‐temperature superconductors
journal, May 1990

Chang, P. ‐ Z.; Moon, F. C.; Hull, J. R.
Journal of Applied Physics, Vol. 67, Issue 9
https://doi.org/10.1063/1.344927

Levitation Forces, Relaxation and Magnetic Stiffness of Melt-Quenched YBa ₂ Cu ₃ O _x
journal, July 1990

Moon, F. C.; Chang, P. -Z.; Hojaji, H.
Japanese Journal of Applied Physics, Vol. 29, Issue Part 1, No. 7
https://doi.org/10.1143/JJAP.29.1257

Low friction in high temperature superconductor bearings
journal, August 1991

Weinberger, B. R.; Lynds, L.; Hull, J. R.
Applied Physics Letters, Vol. 59, Issue 9
https://doi.org/10.1063/1.106367

High‐speed rotation of magnets on high T _c superconducting bearings
journal, January 1990

Moon, F. C.; Chang, P. ‐Z.
Applied Physics Letters, Vol. 56, Issue 4
https://doi.org/10.1063/1.102795

Rotor Dynamics of Flywheel Energy Storage Systems
journal, February 1991

Jayaraman, C. P.; Kirk, J. A.; Anand, D. K.
Journal of Solar Energy Engineering, Vol. 113, Issue 1
https://doi.org/10.1115/1.2929944

Stability projections for high temperature superconductors
journal, March 1989

Laquer, H. L.; Edeskuty, F. J.; Hassenzahl, W. V.
IEEE Transactions on Magnetics, Vol. 25, Issue 2
https://doi.org/10.1109/20.92584

Stable levitation of steel rotors using permanent magnets and high‐temperature superconductors
journal, July 1994

Hull, J. R.; Passmore, J. L.; Mulcahy, T. M.
Journal of Applied Physics, Vol. 76, Issue 1
https://doi.org/10.1063/1.357115

Satellite power using a magnetically suspended flywheel stack
journal, March 1988

Kirk, James A.; Anand, Davinder K.
Journal of Power Sources, Vol. 22, Issue 3-4
https://doi.org/10.1016/0378-7753(88)80025-9

Amplitude dependence of magnetic stiffness in bulk high‐temperature superconductors
journal, December 1990

Basinger, S. A.; Hull, J. R.; Mulcahy, T. M.
Applied Physics Letters, Vol. 57, Issue 27
https://doi.org/10.1063/1.104205

Magnetic bearings using high-temperature superconductors: some practical considerations
journal, July 1990

Weinberger, B. R.; Lynds, L.; Hull, J. R.
Superconductor Science and Technology, Vol. 3, Issue 7
https://doi.org/10.1088/0953-2048/3/7/010

A New Process with the Promise of High J _c in Oxide Superconductors
journal, July 1989

Murakami, Masato; Morita, Mitsuru; Doi, Kenji
Japanese Journal of Applied Physics, Vol. 28, Issue Part 1, No. 7
https://doi.org/10.1143/JJAP.28.1189

Characterization of composite high temperature superconductors for magnetic bearing applications
journal, March 1991

Weinberger, B. R.; Lynds, L.; Van Valzah, J.
IEEE Transactions on Magnetics, Vol. 27, Issue 2
https://doi.org/10.1109/20.133706

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Title: Mixed-mu superconducting bearings

Abstract

Citation Formats

Levitation force and magnetic stiffness in bulk high‐temperature superconductors journal, May 1990

Levitation Forces, Relaxation and Magnetic Stiffness of Melt-Quenched YBa 2 Cu 3 O x journal, July 1990

Low friction in high temperature superconductor bearings journal, August 1991

High‐speed rotation of magnets on high T c superconducting bearings journal, January 1990

Rotor Dynamics of Flywheel Energy Storage Systems journal, February 1991

Stability projections for high temperature superconductors journal, March 1989

Stable levitation of steel rotors using permanent magnets and high‐temperature superconductors journal, July 1994

Satellite power using a magnetically suspended flywheel stack journal, March 1988

Amplitude dependence of magnetic stiffness in bulk high‐temperature superconductors journal, December 1990

Magnetic bearings using high-temperature superconductors: some practical considerations journal, July 1990

A New Process with the Promise of High J c in Oxide Superconductors journal, July 1989

Characterization of composite high temperature superconductors for magnetic bearing applications journal, March 1991

Levitation force and magnetic stiffness in bulk high‐temperature superconductors
journal, May 1990

Levitation Forces, Relaxation and Magnetic Stiffness of Melt-Quenched YBa ₂ Cu ₃ O _x
journal, July 1990

Low friction in high temperature superconductor bearings
journal, August 1991

High‐speed rotation of magnets on high T _c superconducting bearings
journal, January 1990

Rotor Dynamics of Flywheel Energy Storage Systems
journal, February 1991

Stability projections for high temperature superconductors
journal, March 1989

Stable levitation of steel rotors using permanent magnets and high‐temperature superconductors
journal, July 1994

Satellite power using a magnetically suspended flywheel stack
journal, March 1988

Amplitude dependence of magnetic stiffness in bulk high‐temperature superconductors
journal, December 1990

Magnetic bearings using high-temperature superconductors: some practical considerations
journal, July 1990

A New Process with the Promise of High J _c in Oxide Superconductors
journal, July 1989

Characterization of composite high temperature superconductors for magnetic bearing applications
journal, March 1991