| 摘要 |
PURPOSE: An oil filter is provided to increase the flow rate of oil which flows into the venturi pipe after filtered through the first and second filters, thereby enhancing the filtering performance. CONSTITUTION: An oil filter comprises a cylindrical housing(100), a first filter(200), a second filter(300), a discharge pipe(400), and a venture pipe(500). The housing has an inlet hole(111) and an outlet hole(112) through which oil containing contaminants flows in and out. The first filter and the second filter are installed inside the housing, with different permeability. The discharge pipe guides the oil filtered through the second filter to the outlet hole. The venturi pipe is installed on the top of the discharge pipe and connected to the outlet hole. The flow rate of the oil flowing into the venturi pipe is higher than that of the oil filtered through the first filter and of the oil flowing through the discharge pipe. The internal pressure of the venturi pipe is lowed than those of the housing and the discharge pipe so that the oil filtered through the first and second filters is discharged easily through the outlet hole.
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