CA2475481A1 - Dynamic magnet system for generating electric power - Google Patents

Dynamic magnet system for generating electric power Download PDF

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Publication number
CA2475481A1
CA2475481A1 CA002475481A CA2475481A CA2475481A1 CA 2475481 A1 CA2475481 A1 CA 2475481A1 CA 002475481 A CA002475481 A CA 002475481A CA 2475481 A CA2475481 A CA 2475481A CA 2475481 A1 CA2475481 A1 CA 2475481A1
Authority
CA
Canada
Prior art keywords
magnets
support structure
magnet system
dynamic magnet
electric power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002475481A
Other languages
French (fr)
Other versions
CA2475481C (en
Inventor
Jeffrey T. Cheung
Hao Xin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teledyne Scientific and Imaging LLC
Original Assignee
Rockwell Scientific Licensing, Llc
Jeffrey T. Cheung
Hao Xin
Innovative Technology Licensing, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rockwell Scientific Licensing, Llc, Jeffrey T. Cheung, Hao Xin, Innovative Technology Licensing, Llc filed Critical Rockwell Scientific Licensing, Llc
Publication of CA2475481A1 publication Critical patent/CA2475481A1/en
Application granted granted Critical
Publication of CA2475481C publication Critical patent/CA2475481C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
    • H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems

Abstract

A dynamic magnet system, particularly useful for electrical generation, employs multiple magnets (2, 4) in polar opposition to each for individual movement relative to a support structure (6). The magnets (2, 4) have a critical angle of displacement from a horizontal static position of less than 1 degree, with at least some of the magnets (2, 4) having mutually different properties. With different magnetic strengths, a greater movement is produced for both magnets in response to movements of the support structure, for particular ranges of magnetic strength ratios, than would be the case with equal magnets. The magnet movement can be translated into an electrical signal to power an operating system. Ultra low friction ferrofluid bearings can be used to establish static coefficients of friction between the magnets and support structure less than 0.02, enabling useful power generation from only slight movements of the support structure.
CA002475481A 2002-02-19 2003-02-18 Dynamic magnet system for generating electric power Expired - Fee Related CA2475481C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/078,176 US6812598B2 (en) 2002-02-19 2002-02-19 Multiple magnet transducer with differential magnetic strengths
US10/078,176 2002-02-19
PCT/US2003/005057 WO2003071665A1 (en) 2002-02-19 2003-02-18 Multiple magnet transducer with differential magnetic strengths

Publications (2)

Publication Number Publication Date
CA2475481A1 true CA2475481A1 (en) 2003-08-28
CA2475481C CA2475481C (en) 2009-06-30

Family

ID=27732792

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002475481A Expired - Fee Related CA2475481C (en) 2002-02-19 2003-02-18 Dynamic magnet system for generating electric power

Country Status (12)

Country Link
US (3) US6812598B2 (en)
EP (2) EP1732196A3 (en)
JP (1) JP4315811B2 (en)
KR (1) KR100671363B1 (en)
CN (1) CN1647353B (en)
AT (1) ATE420484T1 (en)
AU (1) AU2003216327A1 (en)
CA (1) CA2475481C (en)
DE (1) DE60325708D1 (en)
MX (1) MXPA04007927A (en)
RU (1) RU2294589C2 (en)
WO (1) WO2003071665A1 (en)

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Also Published As

Publication number Publication date
KR20040082442A (en) 2004-09-24
AU2003216327A1 (en) 2003-09-09
DE60325708D1 (en) 2009-02-26
RU2004127921A (en) 2005-05-10
JP2005518774A (en) 2005-06-23
USRE41626E1 (en) 2010-09-07
WO2003071665A1 (en) 2003-08-28
EP1490954A1 (en) 2004-12-29
CA2475481C (en) 2009-06-30
US20040164626A1 (en) 2004-08-26
JP4315811B2 (en) 2009-08-19
EP1490954B1 (en) 2009-01-07
CN1647353B (en) 2011-06-29
MXPA04007927A (en) 2005-05-16
US6812598B2 (en) 2004-11-02
ATE420484T1 (en) 2009-01-15
RU2294589C2 (en) 2007-02-27
US20030155828A1 (en) 2003-08-21
CN1647353A (en) 2005-07-27
KR100671363B1 (en) 2007-01-22
EP1732196A3 (en) 2008-07-30
EP1732196A2 (en) 2006-12-13
US6861772B2 (en) 2005-03-01

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Effective date: 20150218