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Patent Searching and Data


Title:
CENTRIFUGAL PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/158162
Kind Code:
A1
Abstract:
In the present invention, a drive unit (9) includes a plurality of air core coils (20) for generating a rotating magnetic field, and which are provided so as to face a plurality of first permanent magnets (17). A ring-shaped fourth permanent magnet (16a) is provided in a partition wall (6) and faces a second permanent magnet (15a). A ring-shaped fifth permanent magnet (16b) is provided to the inner wall of a pump chamber (7) and faces a third permanent magnet (15b). The second permanent magnet (15a) and the fifth permanent magnet (16a) are arranged so that the opposing surfaces thereof have different magnetic poles. The third permanent magnet (15b) and the fifth permanent magnet (16b) are arranged so that the opposing surfaces thereof have different magnetic poles. Thus, it is possible to provide a centrifugal pump device capable of simultaneously achieving the prevention of pollution and the prevention of deterioration in efficiency and performance.

Inventors:
YAMADA, Hiroyuki (1578 Higashikaizuka, Iwata-sh, Shizuoka 10, 〒4388510, JP)
SUGIURA, Ken (1578 Higashikaizuka, Iwata-sh, Shizuoka 10, 〒4388510, JP)
Application Number:
JP2016/056219
Publication Date:
October 06, 2016
Filing Date:
March 01, 2016
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
F04D13/06; F04D29/00; F04D29/047; F04D29/048; H02K7/08; H02K21/24
Domestic Patent References:
WO2013108681A12013-07-25
Foreign References:
JP2010261394A2010-11-18
JP2008132131A2008-06-12
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (Nakanoshima Central Tower, 2-7 Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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