BEARING DEVICE AND EXHAUST TURBINE SUPERCHARGER

Title:

BEARING DEVICE AND EXHAUST TURBINE SUPERCHARGER

Document Type and Number:

WIPO Patent Application WO/2017/149679

Kind Code:

A1

Abstract:

The purpose of the invention is to reduce bearing loss due to lubricating oil. This invention comprises: a rotary shaft (14); a journal bearing (22) that is provided to the rotary shaft (14) and that rotatably supports the rotary shaft (14); a flange part (17b) having an opposing surface part (17bb) that is arranged so as to oppose a side surface part (22d) of the journal bearing (22) with a gap (D) therebetween in the axial direction in which the rotary shaft (14) extends; and a recess part (22e) provided in the side surface part (22d) or the opposing surface part (17bb). In the projected area of the journal bearing (22) in the axial direction, the area of a section including the recess part (22e) and not forming the gap (D) is larger than the area in which the side surface part (22d) and the opposing surface part (17bb) form the gap (D).

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Inventors:

FUTAE TAKAYA (JP)
NAMBU TAKASHI (JP)
ISHIZAKI TATSUYA (JP)
YANO SEIGI (JP)

Application Number:

PCT/JP2016/056307

Publication Date:

September 08, 2017

Filing Date:

March 01, 2016

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)

International Classes:

F16C17/04; F02B39/00; F16C33/10

Foreign References:

JP2005155894A	2005-06-16
JP2014080890A	2014-05-08
JP2001140888A	2001-05-22

Other References: