公开(公告)号：EP3657000A1

公开(公告)日：2020-05-27

申请号：EP19840704.1

申请日：2019-07-05

申请人： TPR CO., LTD. ,  TPR INDUSTRY CO., LTD.

发明人： KAWAI Kiyoyuki ,  AMAIKE Shinji ,  NANGO Tetsuya ,  TAMAKI Seiji ,  HOSHINO Seeroku ,  SUZUKI Wataru ,  OIZUMI Takashi ,  YAGUCHI Hiroshi ,  SUZUKI Takashi

IPC分类号： F02F1/00 ,  F02F5/00 ,  F16J10/00

摘要： To reduce a friction, and to provide an excellent seizing resistance. Provided is a cast iron cylinder liner including an inner peripheral sliding surface made of cast iron, and an internal combustion engine including a cylinder bore including an inner peripheral sliding surface made of cast iron, wherein the inner peripheral sliding surface includes a region satisfying Expression (1) to Expression (3), Rvk / Rk ≥ 1.0 0.08 μ ⁢ m ≤ Rk ≤ 0.3 μm Rk − Rpk > 0 [Rk is the core roughness depth based on JIS B0671-2:2002, Rpk is the reduced peak height based on JIS B0671-2:2002, and Rvk is the reduced valley depth based on JIS B0671-2:2002 in Expression (1) to Expression (3)].