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Title:
BEARING STRUCTURE OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2012197779
Kind Code:
A
Abstract:

To efficiently raise temperature of lubricating oil at low temperature, when a rotating shaft of an internal combustion engine is supported by a radial sliding bearing via the lubricating oil.

A lubricating oil supply passage 41 for supplying the lubricating oil into a gap between the radial sliding bearing 30 and a crank journal 18 is formed in a bearing holding part 13, and a lubricating oil outlet 43 through which the lubricating oil flows out of the gap between the radial sliding bearing 30 and the crank journal 18 is formed in the radial sliding bearing 30. A bearing back oil path 42 which communicates to the lubricating oil outlet 43 is formed between the bearing holding part 13 and the radial sliding bearing 30, and a heat exchange oil path 44 which communicates with the bearing back oil path 42 is formed in the bearing holding part 13, and the lubricating oil passing through the heat exchange oil path 44 exchanges heat with the lubricating oil passing through the lubricating oil supply passage 41.


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Inventors:
Shinagawa, Tsutomu
Shimazu, Takashi
Mita, Shuzo
Application Number:
JP2011000064141
Publication Date:
October 18, 2012
Filing Date:
March 23, 2011
Export Citation:
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Assignee:
TOYOTA CENTRAL R&D LABS INC
International Classes:
F01M5/00; F01M1/06; F01M5/02; F16C9/02; F16C17/02; F16C33/10; F16C35/02
Attorney, Agent or Firm:
特許業務法人YKI国際特許事務所