| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance combustibility in an engine and to reduce Pf when the engine is cooled, in an engine oiling device having an oil adjusting device controlling oil pressure and an oil amount of oil supplied to each part of the engine by an oil pump. <P>SOLUTION: A pressure regulation device 3 is constituted in such a way that oil pressure of the oil is controlled to be a low pressure setting value when temperature of an engine cooling water is a prescribed temperature or below and to be a high pressure setting value higher than the low pressure setting value when the temperature of the engine cooling water is higher than the prescribed temperature. A valve opening pressure of an oil jet 21 for piston cooling is set to be larger than the low pressure setting value and lower than the high pressure setting value. <P>COPYRIGHT: (C)2012,JPO&INPIT |
