COMPRESSION SELF-IGNITED INTERNAL COMBUSTION ENGINE

    公开(公告)号:US20190257266A1

    公开(公告)日:2019-08-22

    申请号:US16223640

    申请日:2018-12-18

    Abstract: A heat shield film M1 is formed on entire are of the side surface 20b. A heat shield film M2 is formed entire area of the top surface 12a and the bottom surface 20c. The heat shield films M1 and M2 are mainly composed of porous alumina. The difference between the heat shield films M1 and M2 is in film thickness. The film thickness of the heat shield film M1 is from 20 to 60 μm and that of the heat shield film M2 is from 60 to 150 μm.

    COMPRESSION SELF-IGNITED INTERNAL COMBUSTION ENGINE

    公开(公告)号:US20190218958A1

    公开(公告)日:2019-07-18

    申请号:US16195937

    申请日:2018-11-20

    Inventor: Isamu GOTO

    Abstract: A porous alumina layer with a sealer (i.e., a coating layer) is formed on a top surface or a piston (i.e., a second cavity surface and a second squish surface) and a surface of a bottom surface of a cylinder which forms a cavity area CA (i.e., a first cavity surface). The porous alumina layer without the sealer (i.e., an exposed layer) is formed on a surface of the bottom surface which forms a squish area SA (i.e., a first squish surface).

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