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1. (WO2017150500) JOURNAL BEARING AND ROTARY MACHINE

Pub. No.:    WO/2017/150500    International Application No.:    PCT/JP2017/007678
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: F16C 17/03
F16C 33/10
Applicants: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
三菱日立パワーシステムズ株式会社
Inventors: SHINOHARA, Tanehiro
篠原 種宏
KAIKOGI, Takaaki
貝漕 高明
NAKANO, Takashi
中野 隆
WAKI, Yuichiro
脇 勇一朗
OZAWA, Yutaka
小澤 豊
TOCHITANI, Naoto
杼谷 直人
Title: JOURNAL BEARING AND ROTARY MACHINE
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.