ASSEMBLING METHOD OF CORES
    2.
    发明申请

    公开(公告)号:US20170241370A1

    公开(公告)日:2017-08-24

    申请号:US15438143

    申请日:2017-02-21

    CPC classification number: F02F1/14 B22C9/103 B22C9/108 F02F1/24 F02F2200/06

    Abstract: An intake-port core includes a body part having the same outer shape as that of the intake port, a port-injector part having the same outer shape as that of a port-injector insertion part, and an extending part. A cooling-water flow-passage core includes a water-jacket core having the same outer shape as that of a water jacket. The intake-port core is inserted from the extending part thereof into the water-jacket core so as to join the cooling-water flow-passage core to the intake-port core. Thereafter, a core print part that is a separate body from the intake-port core is joined to the intake-port core.

    PISTON
    3.
    发明申请
    PISTON 有权

    公开(公告)号:US20210189995A1

    公开(公告)日:2021-06-24

    申请号:US17079881

    申请日:2020-10-26

    Abstract: A piston includes: a piston head; and a piston skirt connected to the piston head, wherein the piston skirt includes wall portions protruding outward from a surface of the piston skirt, the wall portions adjacent to each other in a circumferential direction of the piston skirt are inclined in directions opposite to each other with respect to a direction of movement of the piston in a bore for the piston, and define a tapered portion, and the tapered portions are spaced away from each other in the circumferential direction of the piston skirt.

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