| 摘要 |
PURPOSE: A filtering medium for an oil filter is provided to reduce the entire height of an oil circuit based on the oil filter while keeping the performance of the oil circuit and to reduce pressure loss. CONSTITUTION: An oil circuit includes a filtering medium(4). The filtering medium includes a first filtering layer, a second filtering layer, and a frame element. The frame element defines a plurality of intermediate chambers(5) arranged between the first filtering layer and the second filtering layer. Respective through holes are arranged in the second filtering layer with respect to the intermediate chambers. Oil from the oil circuit successively flows through the second filtering layer and the first filtering layer.
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