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Title:
SLIDING BEARING DEVICE AND PUMP COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2019/107292
Kind Code:
A1
Abstract:
Provided are: a sliding bearing device for a radial bearing used in a water pump, wherein the sliding bearing device comprises a sliding bearing in which, while wear resistance equivalent to that achieved in the past is maintained during operation under water that contains foreign objects such as sand (slurry), the wear resistance is stably maintained at a low friction coefficient even in a comparatively high PV value range in a dry lubrication condition when sliding in air; and a pump comprising the sliding bearing device. A sliding bearing device comprising a sliding bearing, wherein the sliding bearing includes an aromatic polyether ketone, talc, carbon fibers, and unavoidable impurities, the talc content in the sliding bearing being 7-18% by mass, and the surface ratio of the carbon fibers in the sliding surface of the sliding bearing being 27-35%.

Inventors:
KIM, Sungha (11-1 Haneda Asahi-cho, Ota-k, Tokyo 10, 〒1448510, JP)
SUGIYAMA, Kenichi (11-1 Haneda Asahi-cho, Ota-k, Tokyo 10, 〒1448510, JP)
SUGIYAMA, Kazuhiko (11-1 Haneda Asahi-cho, Ota-k, Tokyo 10, 〒1448510, JP)
KOMIYA, Makoto (11-1 Haneda Asahi-cho, Ota-k, Tokyo 10, 〒1448510, JP)
NISHITANI, Yosuke (1-24-2 Nishi-shinjuku, Shinjuku-k, Tokyo 77, 〒1638677, JP)
Application Number:
JP2018/043312
Publication Date:
June 06, 2019
Filing Date:
November 26, 2018
Export Citation:
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Assignee:
EBARA CORPORATION (11-1, Haneda Asahi-cho Ota-k, Tokyo 10, 〒1448510, JP)
KOGAKUIN UNIVERSITY (1-24-2, Nishi-shinjuku Shinjuku-k, Tokyo 77, 〒1638677, JP)
International Classes:
F16C33/20; F04D13/00; F04D29/046; F16C17/14
Foreign References:
JP2012251616A2012-12-20
JP2016205545A2016-12-08
JPH05262976A1993-10-12
JP2015113810A2015-06-22
Attorney, Agent or Firm:
ONO, Shinjiro et al. (YUASA AND HARA, Section 206 Shin-Otemachi Bldg., 2-1, Otemachi 2-chome, Chiyoda-k, Tokyo 04, 〒1000004, JP)
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