| 摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently raise a temperature of lubricating oil at low temperature, when a rotary shaft of an internal combustion engine is supported by a radial sliding bearing via the lubricating oil. <P>SOLUTION: In a radial sliding bearing 30, a lubricating oil outlet port 43 allowing a lubricating oil to flow from a clearance between the radial sliding bearing 30 and a crank journal 18 is formed, and between a bearing holding portion 13 and the radial sliding bearing 30, a bearing back oil path 42 communicating with the lubricating oil outlet port 43 is formed. In the bearing holding portion 13, a lubricating oil reservoir 45 communicating with the bearing back oil path 42 is formed, and in the radial sliding bearing 30, a lubricating oil inlet port 46 allowing the lubricating oil within the lubricating oil reservoir 45 to flow into the clearance between the radial sliding bearing 30 and the crank journal 18 is formed. The lubricating oil within the lubricating oil reservoir 45 is circulated via a lubricating oil inlet port 46, a clearance between the radial sliding bearing 30 and the crank journal 18, the lubricating oil outlet port 43, and the bearing back oil path 42. <P>COPYRIGHT: (C)2013,JPO&INPIT |
