| 摘要 |
PROBLEM TO BE SOLVED: To easily and quickly wipe up lubrication oil spilt in removal of an oil filter by arranging a pair of left and right oil guide parts integrally between an oil filter mounting seat part and an oil pan connecting flange. SOLUTION: On the outside face of a skirt part 2 in a cylinder block 1 in an internal combustion engine, a flange 4 is integrally arranged in the lateral direction, while above the flange 4, a reinforcing lateral rib 5 is arranged integrally. A seat part 7 for an oil filter 6 is integrally arranged above the lateral rib 5, and a pair of left and right oil guide parts 8 extending downward while putting the seat part 7 between them are integrally arranged between the seat part 7 and the lateral rib 5. In addition, a pair of left and right oil guide parts 9 are also arranged integrally so as to extend downward between the lateral rib 5 and the flange 4. In this way, lubrication oil spilt in removal of the oil filter 6 from the seat part 7 can be guided by means of both of the guide parts 8, 9.
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