| 摘要 |
PURPOSE:To prevent oil deterioration by partitioning the upper and low chambers of an oil rotary pump with a partition plate having a communicating hole and communicating the above chambers through oil cleaning piping having an oil filter and an oil pump on its midway. CONSTITUTION:The oil case 1 of an oil rotary pump is partitioned into two chambers with a partition plate 5 having a communicating hole to communicate upper and lower chambers. The upper chamber is equipped with an oil drain hole 2, and the lower chamber is done with an oil return port 4. The hole 2 and the port 4 are coupled through an oil cleaning piping having an oil filter 3 and an oil pump 7 on its midway. Thus dust contained in oil can be always removed from the oil. |
