Title:
MAGNETIC SHAFT BEARING ASSEMBLY AND SYSTEM INCORPORATING SAME
Document Type and Number:
WIPO Patent Application WO/2011/158382
Kind Code:
A1
Abstract:
Disclosed is a magnetic shaft bearing assembly which can provide a strong repulsion in the outward direction of rotation and in the axial direction of rotation and prevents a magnetic shaft from vibrating in the axial direction of rotation. The magnetic shaft bearing assembly includes an integral magnetic shaft (20) which bears magnetism on the entire shaft and is made of a magnetic substance to have the N pole and the S pole appearing on both the end portions; and a magnetic bearing (30) which bears the magnetism of the same pole as that of the opposing end portion (22) of the magnetic shaft (20) to magnetically levitate and rotatably support the magnetic shaft (20) by magnetic repulsion. The end portion (22) of the magnetic shaft (20) is shaped to have an outer circumferential surface in the outer circumferential direction of the axis of rotation and an axial surface in the axial direction of the axis of rotation, with a magnetic pole developed integrally on the outer circumferential surface and the axial surface at the end portion (22). The bearing surface of the magnetic bearing (30) is shaped to have an inner circumferential surface opposed to the outer circumferential surface of the magnetic shaft (20) and an axially opposing surface opposed to the axial surface of the magnetic shaft, with a magnetic pole developed integrally on the inner circumferential surface and the axially opposing surface.
Inventors:
IKEDA, Kazuhiro (3694-48, KaratoArino-cho,Kita-ku, Kobe-sh, Hyogo 31, 〒6511331, JP)
Application Number:
JP2010/060591
Publication Date:
December 22, 2011
Filing Date:
June 16, 2010
Export Citation:
Assignee:
IKEDA, Kazuhiro (3694-48, KaratoArino-cho,Kita-ku, Kobe-sh, Hyogo 31, 〒6511331, JP)
International Classes:
F16C32/04; H02K7/09
Attorney, Agent or Firm:
NAGAI, Michiaki (8th Floor, Kobe Industry Promotion Center 1-8-4, Higashikawasaki-cho, Chuo-ku, Kobe-sh, Hyogo 44, 〒6500044, JP)
Claims: