| 摘要 |
To provide a filter element for an air cleaner unit for an engine including an elongated rectangular contour as seen in a plan view and having a corrugate sectional contour as seen from the front side, the one end side of the corrugated sectional contour is collected on the central side of the filter element, the other end side of the same is expanded to exhibit a substantially circular contour, the opposite ends of the filter element as seen in the circular contour are connected to each side by the side-by-side relationship to exhibit a substantially annular contour as seen in a plan view, and subsequently, a cover member designed to have a conical-shaped or a spinner-shaped contour is attached to the upper surface side and/or the lower surface side at the central part of the filter element main body.
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