| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing device of an engine, in which thermal deterioration in an oil seal can be suppressed. <P>SOLUTION: The bearing device of the engine is configured in such a manner that a bearing 2 is supported by a crank case 1, a journal part 4 of a crank shaft 3 is supported by the bearing, an annular oil seal 5 is arranged outside the bearing, and engine oil 7 is supplied from an oil feeding port 6 to the oil seal. A rolling bearing 8 is used as the bearing, the oil feed port is arranged in the crank arm 9 of the crank shaft. The oil feed port is directed to the rolling bearing, and engine oil 7 immediately after being jetted from the oil feed port is fed to the circumferential-direction entire area of the rolling bearing by the rotation of the crank shaft, and the engine oil is fed to the circumferential-direction entire area of the oil seal via a space 10 of the rolling bearing. <P>COPYRIGHT: (C)2013,JPO&INPIT |
