| 摘要 |
A filter device includes a filtering member having a rough part, which is comparatively low in a density of flow pores for flowing fluid, and a dense part, which is comparatively high in the density of the flow pores. The filter device further includes a support member that supports the filtering member and has an inflow passage and a discharge passage. The dense part supports the rough part, and is located between the rough part and the discharge passage, and is supported by a mechanical pressure applied by the support members. The filter device is capable of supporting the filtering member easily in a case member and securing a filtering area to enhance the performance of removing a foreign matter.
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