Title:
BEARING ATTACHMENT STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2022/201558
Kind Code:
A1
Abstract:
Provided is a bearing attachment structure for attaching bearings 71, 72 that support a rotating shaft 3 passing through a housing, wherein: the bearings 71, 72 are embedded in bearing cases 61, 62 respectively having roughly cylindrical base sections 612, 622 and flange sections 611, 621 that are formed so as to widen from one end in the axial direction of the base sections 612, 622 to the outside; the bearing cases 61, 62 are disposed so that the flange sections 611, 621 follow the housing; and the bearing cases 61, 62 are welded to the housing at the flange sections 611, 621. Damage caused by welding heat on the bearings is greatly reduced, and breakage of the bearings, deterioration of the lubricant of the housing, and a decrease in the lifetimes of the bearings can be reliably prevented.
Inventors:
NOMURA TETSUAKI (JP)
Application Number:
PCT/JP2021/013158
Publication Date:
September 29, 2022
Filing Date:
March 26, 2021
Export Citation:
Assignee:
SANKEI GIKEN KOGYO CO LTD (JP)
International Classes:
F01N13/08; F02D9/10
Foreign References:
| JP2008169797A | 2008-07-24 | |||
| JP2008274895A | 2008-11-13 | |||
| JP2004353635A | 2004-12-16 |
Attorney, Agent or Firm:
MOTOI Shigeyuki (JP)
Download PDF: