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Patent Searching and Data


Title:
MAGNETIC GEAR DEVICE
Document Type and Number:
Japanese Patent JP2018123960
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a magnetic gear device that allows two rotors to be disposed such that respective rotary axial centers are positioned not coaxially, and separately, and has less leakage magnetic flux.SOLUTION: A magnetic gear device includes: two rotors 1, 2 that allow a plurality of respective permanent magnets 1a, 2a to be disposed side by side in a circumferential direction and include mutually different rotary axial centers O1, O2; and a stator 3 including a plurality of pole pieces 3a, 3b that are magnetically positioned between the two rotors 1, 2 and are made of a magnetic body. In the two rotors 1, 2, the respective outer peripheral surfaces oppose the respective pole pieces 3a, 3b of the stator 3 via a radial gap RG. The plurality of permanent magnets 1a, 2a in the respective rotors are disposed at an equal interval on the same circumference. The plurality of pole pieces 3a, 3b are disposed such that positions in a circumferential direction of opposite faces 3aa, 3ba of the rotors 1, 2 are mutually at an equal interval.SELECTED DRAWING: Figure 1

Inventors:
YAMADA HIROYUKI
SUGIURA AKIRA
Application Number:
JP2017102389A
Publication Date:
August 09, 2018
Filing Date:
May 24, 2017
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16H49/00
Attorney, Agent or Firm:
Masashi Noda
Shuji Sugimoto