Title:
FLUX FOCUSING ARRANGEMENT FOR PERMANENT MAGNETS, METHODS OF FABRICATING SUCH ARRANGEMENTS, AND MACHINES INCLUDING SUCH ARRANGEMENTS
Document Type and Number:
WIPO Patent Application WO/2012/141932
Kind Code:
A3
Abstract:
Numerous arrangements for permanent magnets are disclosed that can focus the flux produced by the magnets. Depending on the particular application in which the disclosed designs and techniques are used, efficiency and reliability may be increased by minimizing flux leakage, increasing peak flux density, and shaping the flux fields to improve the effective coercivity of the flux focusing permanent magnet arrangement when loaded, and to achieve customized voltage and current waveforms. The disclosed magnet assemblies may be incorporated into a machine, such as a motor / generator, having windings and may be disposed for movement relative to the windings. The magnet assembly may be mounted on a support formed of one or more ferromagnetic materials, such as a back iron The disclosed flux focusing magnet assemblies may be formed using a variety of manufacturing methods.
Inventors:
SMITH JAMES S (US)
PILLSBURY ROBERT (US)
SULLIVAN BRIAN (US)
PILLSBURY ROBERT (US)
SULLIVAN BRIAN (US)
Application Number:
PCT/US2012/031867
Publication Date:
November 28, 2013
Filing Date:
April 02, 2012
Export Citation:
Assignee:
BOULDER WIND POWER INC (US)
SMITH JAMES S (US)
PILLSBURY ROBERT (US)
SULLIVAN BRIAN (US)
SMITH JAMES S (US)
PILLSBURY ROBERT (US)
SULLIVAN BRIAN (US)
International Classes:
H01F7/02; H02K1/27; H02K21/12; H02K21/14; H02K21/24
Domestic Patent References:
| WO2010036747A2 | 2010-04-01 |
Foreign References:
| US20090097003A1 | 2009-04-16 |
Attorney, Agent or Firm:
TALBOT, C. Scott et al. (777 6th St NW,Suite 110, Washington District of Columbia, US)
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