| 摘要 |
A filter element having flow passing from upstream to downstream through the filter element, comprising: Filter media comprising s plurality of flutes extending in longitudinal direction; wherein the filter media is coiled in a spiralling configuration having an outer surface and a first and second face. First ends of the flutes extend to the first face and second ends of the flutes extend to the second face, and alternating ends of the flutes are closed, and a portion of the first face of the coil slopes outward and toward the second face, wherein the flow passes substantially parallel to the flute direction from the first face to the second face, wherein a center potion of the first face has a substantially conical configuration, and wherein the filter element is structurally self-supporting in the substantially conical configuration. <IMAGE> |
