| 摘要 |
An internal combustion engine is provided having at least one cylinder bore for slidingly supporting a piston, the cylinder bore wall of the at least one cylinder of the engine having pockets formed therein for retaining lubricant to reduce friction between the cylinder bore wall and piston. The pockets are elongate and have axes which are substantially parallel to the axis of the cylinder bore. The pockets are located at a first region supporting the piston when the piston is at its top dead center position. A method of making the cylinder is also provided.
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