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Title:
LOW-TEMPERATURE FLUID PUMP AND LOW-TEMPERATURE FLUID TRANSFER DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/181281
Kind Code:
A1
Abstract:
Provided are a low-temperature fluid pump and a low-temperature fluid transfer device with which vaporization of the low-temperature fluid can be reduced. The low-temperature fluid pump is equipped with an impeller, a rotary shaft (9), a case, and a magnetic bearing (11). The rotary shaft (9) is connected to the impeller. The rotary shaft (9) is held inside the case. The magnetic bearing (11) supports the rotary shaft (9) so as to be capable of rotating with respect to the case. The magnetic bearing (11) includes a yoke and one or more coils (11b). The yoke constitutes at least a part of a magnetic circuit (11e). The one or more coils (11b) surround a portion of the yoke. The yoke includes one or more permanent magnets (11c) arranged at a position constituting a portion of the magnetic circuit (11e).

Inventors:
YAMADA, Hiroyuki (1578 Higashikaizuka, Iwata-sh, Shizuoka 10, 〒4388510, JP)
Application Number:
JP2018/012376
Publication Date:
October 04, 2018
Filing Date:
March 27, 2018
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
F16C32/04; F04D7/02; F04D29/048
Domestic Patent References:
WO2009050767A12009-04-23
Foreign References:
JP2013057250A2013-03-28
JP2001041238A2001-02-13
JP2010106908A2010-05-13
JP2007120635A2007-05-17
CN106402159A2017-02-15
KR101343879B12013-12-20
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (Nakanoshima Festival Tower West, 2-4 Nakanoshima 3-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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