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Patent Searching and Data


Title:
BEARING AND SUPERCHARGER
Document Type and Number:
WIPO Patent Application WO/2017/203880
Kind Code:
A1
Abstract:
The bearing 7 comprises: an insertion hole 7b into which a shaft is inserted; a bearing surface 7d which is formed on the inner peripheral surface 7c of the insertion hole 7b; a plurality of arc-shaped portions 30 which are formed on the bearing surface 7d and which have centers of curvature A at different positions inside of the bearing surface 7d when viewed in a cross-section perpendicular to the central axis O of the insertion hole 7b, and which are spaced apart in the rotation direction of the shaft 8; connection surfaces 31 which are formed on the bearing surface 7d, and, in cross section, connect adjacent arc-shaped portions 30; a common tangent line Vb of two virtual arcs Va which are formed by extending two adjacent arc-shaped portions 30; and connection points X of the arc-shaped portions 30 and the connection surface 31 which are positioned at the same position as connection points Y of the virtual arc Va, or, with one of the connection points Y as a reference, positioned further therefrom than the other connection point Y.

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Inventors:
UNEURA, Yutaka (1-1 Toyosu 3-chome, Koto-k, Tokyo 10, 〒1358710, JP)
KANEDA, Shinichi (1-1 Toyosu 3-chome, Koto-k, Tokyo 10, 〒1358710, JP)
SUGIURA, Tomomi (1-1 Toyosu 3-chome, Koto-k, Tokyo 10, 〒1358710, JP)
KOJIMA, Hideyuki (1-1 Toyosu 3-chome, Koto-k, Tokyo 10, 〒1358710, JP)
NISHII, Shunsuke (1-1 Toyosu 3-chome, Koto-k, Tokyo 10, 〒1358710, JP)
Application Number:
JP2017/015101
Publication Date:
November 30, 2017
Filing Date:
April 13, 2017
Export Citation:
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Assignee:
IHI CORPORATION (1-1 Toyosu 3-chome, Koto-ku Tokyo, 10, 〒1358710, JP)
International Classes:
F16C17/02; F02B39/00; F02B39/14
Foreign References:
JP2009256696A2009-11-05
JP2007187257A2007-07-26
JP2004052845A2004-02-19
JP2016056782A2016-04-21
Attorney, Agent or Firm:
AOMI PATENT (1-8-8, Kanda-ogawamachi Chiyoda-k, Tokyo 52, 〒1010052, JP)
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