| 摘要 |
PROBLEM TO BE SOLVED: To increase lubricating performance by maintaining a lubricating oil within a specified temperature range to supply the lubricating oil with an optimum viscosity and increase exhaust emission control performance by securely cooling exhaust recirculation gas in the lubricating device of an internal combustion engine. SOLUTION: This lubricating device of the internal combustion engine comprises a lubricating oil passage 33 supplying an engine oil to the portions of the engine 11 to be lubricated through an oil cooler 31 and an EGR cooler 32 by an oil pump 29 and a bypass passage 34 bypassing the oil cooler 31 and connected to the EGR cooler 32. A selector valve 35 is installed at the branch part of the lubricating oil passage 33 from the bypass passage 34, and a control part 38 switchingly control the selector valve 35 according to the operating state of the engine 11. COPYRIGHT: (C)2006,JPO&NCIPI
|
