公开(公告)号：EP4234896A1

公开(公告)日：2023-08-30

申请号：EP20958682.5

申请日：2020-10-21

申请人： NISSAN MOTOR CO., LTD.

发明人： NOGAMI, Moriyuki ,  INOGUCHI, Masatoshi ,  MATSUYAMA, Hidenobu ,  SHIBAYAMA, Hirohisa ,  NOSHI, Yoshitsugu ,  KAMADA, Koukichi ,  TAINAKA, Naoya

IPC分类号： F01L3/02 ,  F01L3/04 ,  C23C24/04

摘要： A film formation portion is formed on an annular edge portion along an opening portion (16a) of an intake port (16) or an opening portion (17a) of an exhaust port (17). The cross section, along the radial direction of the intake port (16) or the exhaust port (17), of the film formation portion, on which a metal film (5) is formed by spraying a raw material powder using a cold spray method, is formed in a groove shape that includes a flat bottom surface (G1) and a pair of side surfaces (G2) adjacent to the bottom surface.