Title:
MULTI-ARC BEARING, AND SUPERCHARGER
Document Type and Number:
WIPO Patent Application WO/2021/075155
Kind Code:
A1
Abstract:
According to the present invention, a semi-floating bearing (multi-arc bearing) 13 comprises: a radial bearing surface 13d including a plurality of circular arc surfaces 37 that are formed on the inner peripheral surface of a main body 13a, have mutually different centers A of curvature, and are disposed adjacent to each other in the circumferential direction of the main body 13a; and axial-direction grooves 39 that are formed in the radial bearing surface 13d, extend in the axial direction of a shaft 15, and, in a range from boundary portions BP of the plurality of circular arc surfaces 37 to a central position in the circumferential direction of the circular arc surfaces 37, the axial-direction grooves are disposed in positions where a center position Cp of the grooves in the circumferential direction is offset rearward in the rotational direction of the shaft 15 from the boundary portions BP.
Inventors:
UNEURA YUTAKA (JP)
NISHII SHUNSUKE (JP)
MOCHIZUKI HIROKI (JP)
NISHII SHUNSUKE (JP)
MOCHIZUKI HIROKI (JP)
Application Number:
PCT/JP2020/032066
Publication Date:
April 22, 2021
Filing Date:
August 25, 2020
Export Citation:
Assignee:
IHI CORP (JP)
International Classes:
F02B39/00; F16C17/02; F16C17/10; F16C33/10; F16C33/14
Domestic Patent References:
| WO2017010450A1 | 2017-01-19 | |||
| WO2017203880A1 | 2017-11-30 |
Foreign References:
| JP2019065934A | 2019-04-25 |
Attorney, Agent or Firm:
AOMI PATENT (JP)
Download PDF: