Title:
磁気回路用金属層部材
Document Type and Number:
Japanese Patent JP4231025
Kind Code:
B2
Abstract:
A magnetic circuit, a method of forming a magnetic circuit, a stator (10) or rotor (20) for an electric motor or generator, and an electric motor are disclosed. A magnetic circuit comprises a low reluctance magnetic flux path comprising a plurality of stacked metallic laminations (60,62) (each lamination having an edge (68,74)), and an air gap in operational relationship to at least a portion of the edges (68,74) of the stacked metallic laminations (60,62) (wherein magnetic flux flows at least partially through the stacked metallic laminations (60,62) and the air gap). Adjacent edges (60,62) of the stacked metallic laminations are intentionally offset (H L -H S ).
Inventors:
Greg P. Selvenka
Forest M Martino
Forest M Martino
Application Number:
JP2005141421A
Publication Date:
February 25, 2009
Filing Date:
May 13, 2005
Export Citation:
Assignee:
National-Oilwell, L.P.
International Classes:
H02K1/18; H01F3/02; H02K1/00; H02K1/06; H01F
Domestic Patent References:
| JP2000341913A | ||||
| JP2000060037A | ||||
| JP54158607A | ||||
| JP2000197286A |
Attorney, Agent or Firm:
Hidehiko Okada
Tetsuo Fukuda
Tatsuhiko Inukai
Takashi Ishioka
Mitsuyoshi Hattori
Tetsuo Fukuda
Tatsuhiko Inukai
Takashi Ishioka
Mitsuyoshi Hattori