| 摘要 |
<p>PURPOSE:To control properly discharging pressure characteristic of an oil pump according to operating condition of an engine. CONSTITUTION:In the lubricating oil supplying device for an engine, which is provided with a cam switching mechanism 6 in response to lubricating oil pressure, an oil pressure regulating valve 5 for regulating lubricating oil pressure led to the cam switching mechanism 6 according to engine operating condition, and a relief valve 7 for opening a low pressure relief port 31 and a high pressure relief port 32 in order in association with increasing of discharging pressure in an oil pump 1, a spool valve 35 is provided to close the low pressure relief port 31 while interlocking the oil pressure regulating valve 5 with operation for increasing oil pressure led to the cam switching mechanism 6.</p> |
