摘要 |
A cylinder liner for insert casting used in a cylinder block is disclosed. The cylinder liner has an outer circumferential surface, and upper, middle, and lower portions with respect to an axial direction of the cylinder liner. A high thermal conductive film is formed in a section of the outer circumferential surface that corresponds to the upper portion, and a low thermal conductive film is formed in a section of the outer circumferential surface that corresponds to the lower portion. The high thermal conductive film and the low thermal conductive film are laminated in a section of the outer circumferential surface that corresponds to the middle portion, thereby forming a laminated film portion. As a result, temperature difference along the axial direction of the cylinder is reduced. |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA;MIYAMOTO, NORITAKA;TAKAMI, TOSHIHIRO;HIRANO, MASAKI;SHIBATA, KOUHEI;YAMASHITA, NOBUYUKI;MIHARA, TOSHIHIRO;SAITO, GIICHIRO;HORIGOME, MASAMI;SATO, TAKASHI |
发明人 |
MIYAMOTO, NORITAKA;TAKAMI, TOSHIHIRO;HIRANO, MASAKI;SHIBATA, KOUHEI;YAMASHITA, NOBUYUKI;MIHARA, TOSHIHIRO;SAITO, GIICHIRO;HORIGOME, MASAMI;SATO, TAKASHI |