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Title:
JOURNAL BEARING AND ROTARY MACHINE
Document Type and Number:
WIPO Patent Application WO/2017/150500
Kind Code:
A1
Abstract:
A journal bearing that comprises: a carrier ring; a plurality of bearing pads that are provided on the inner circumferential side of a lower half region of the carrier ring and that are configured to support a rotor shaft from below; a pair of side plates that are provided on both sides of the plurality of bearing pads with respect to the axial direction of the rotor shaft; and at least one oil supply unit for supplying lubricating oil to the plurality of bearing pads. A gap that allows a bearing internal space that is surrounded by the pair of side plates to communicate with the outside is provided between an inner circumferential surface of each side plate and an outer circumferential surface of the rotor shaft. Of the at least one oil supply units, a first oil supply unit that is provided on the downstream side of a furthest downstream pad that, of the plurality of bearing pads, is located furthest downstream is configured to supply the lubricating oil toward a region that is below a corner part of the furthest downstream pad that, of a trailing edge end surface of the furthest downstream pad, is formed by the line of intersection between a pad surface of the furthest downstream pad and the trailing edge end surface.

Inventors:
SHINOHARA, Tanehiro (C/O MITSUBISHI HEAVY INDUSTRIES LTD, 16-5, Konan 2-Chome, Minato-k, Tokyo 15, 〒1088215, JP)
KAIKOGI, Takaaki (C/O MITSUBISHI HEAVY INDUSTRIES LTD, 16-5, Konan 2-Chome, Minato-k, Tokyo 15, 〒1088215, JP)
NAKANO, Takashi (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
WAKI, Yuichiro (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
OZAWA, Yutaka (C/O Sanyo Techno-Service Ltd, 1-7, Araicho Higashihonmachi, Takasago-sh, Hyogo 17, 〒6760017, JP)
TOCHITANI, Naoto (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
Application Number:
JP2017/007678
Publication Date:
September 08, 2017
Filing Date:
February 28, 2017
Export Citation:
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Assignee:
MITSUBISHI HITACHI POWER SYSTEMS, LTD. (3-1 Minatomirai 3-Chome, Nishi-ku Yokohama-sh, Kanagawa 01, 〒2208401, JP)
International Classes:
F16C17/03; F16C33/10
Foreign References:
JP2013204651A2013-10-07
JP2006112499A2006-04-27
US20140270607A12014-09-18
JP2004197890A2004-07-15
JP2011038605A2011-02-24
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (Mita 43MT Building 13th Floor, 13-16 Mita 3-Chome, Minato-k, Tokyo 73, 〒1080073, JP)
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