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Patent Searching and Data


Title:
BEARING DEVICE AND EXHAUST TURBINE SUPERCHARGER
Document Type and Number:
WIPO Patent Application WO/2017/149678
Kind Code:
A1
Abstract:
The present invention relates to a bearing device comprising: a rotary shaft (14); journal bearings (21, 22) in each of which the outer circumferential surface and the inner circumferential surface do not communicate with one another, the journal bearings being provided to the rotary shaft (14) and rotatably supporting the rotary shaft (14) at at least two sites in the axial direction; a bearing housing (16) that forms a space (16A) for housing the journal bearings (21, 22); a third supply passage (43) and a fourth supply passage (44) which are outer circumferential surface-side lubricating oil supply passages that respectively communicate, in the space (16A), with locations of the outer circumferential surface of the respective journal bearings (21, 22); and a sixth supply passage (46) which is an intermediate-section lubricating oil supply passage that communicates, in the space (16A), with a location between the journal bearings (21, 22). Thus, the invention is capable of supplying an appropriate amount of lubricating oil.

Inventors:
FUTAE, Takaya (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
NAMBU, Takashi (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
ISHIZAKI, Tatsuya (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
KOJIMA, Yuya (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
NISHIOKA, Tadasuke (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
Application Number:
JP2016/056306
Publication Date:
September 08, 2017
Filing Date:
March 01, 2016
Export Citation:
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Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-chome Minato-k, Tokyo 15, 〒1088215, JP)
International Classes:
F16C17/18; F02B39/14
Foreign References:
JP2004301258A2004-10-28
JPS606838U1985-01-18
JPH01159132U1989-11-02
JP2004324460A2004-11-18
JPS566917A1981-01-24
JPH02305326A1990-12-18
JP2015028328A2015-02-12
Other References:
See also references of EP 3425220A4
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (Toranomon Mitsui Building, 8-1 Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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