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    REDUCED COMPRESSION HEIGHT PISTON AND PISTON ASSEMBLY THEREWITH AND METHODS OF CONSTRUCTION THEREOF
    1.
    发明授权
    REDUCED COMPRESSION HEIGHT PISTON AND PISTON ASSEMBLY THEREWITH AND METHODS OF CONSTRUCTION THEREOF 有权

    公开(公告)号：EP2900993B1

    公开(公告)日：2018-07-25

    申请号：EP13779962.3

    申请日：2013-09-27

    申请人： Federal-Mogul LLC

    发明人： AZEVEDO, Miguel ,  WEINENGER, Michael

    IPC分类号： F02F3/00 ,  F16J1/16 ,  F16C7/00 ,  F16C9/04

    CPC分类号： B23P15/08 ,  F02F3/00 ,  F02F3/0069 ,  F02F3/16 ,  F02F2200/00 ,  F16J1/005 ,  F16J1/09 ,  F16J1/16 ,  F16J7/00 ,  Y10T29/49249 ,  Y10T29/49268

    摘要： A piston assembly for an internal combustion engine, comprises: a piston head having an upper combustion wall with an undercrown surface and a ring belt region depending from said upper combustion wall, a floor having an upper surface and a bottom surface, said floor being spaced beneath said upper combustion wall in radial alignment with said ring belt region, a substantially enclosed, annular cooling gallery bounded by said undercrown surface and said floor, said cooling gallery extending radially inwardly from said ring belt region; a pair of pin bores depending directly from the floor of the cooling gallery; a pin having ends configured for oscillating receipt in the pin bores; a pin bearing surface extending within said pin bores and between said pin bores in said lower surface of said floor; a connecting rod having an end fixed to the pin for conjoint oscillation therewith; and a plurality of support members extending radially outwardly from a central longitudinal axis of said piston head, said support members extending between said undercrown surface and said upper surface of said floor.

    PISTON ASSEMBLY WITH WELD SUPPORT
    8.
    发明公开
    PISTON ASSEMBLY WITH WELD SUPPORT 审中-公开
    KOLBENANORDNUNG MITSCHWEISSTRÄGER

    公开(公告)号：EP2958703A1

    公开(公告)日：2015-12-30

    申请号：EP14710122.4

    申请日：2014-02-21

    申请人： Mahle International GmbH ,  Lapp, Michael, T.

    发明人： LAPP, Michael, T. ,  GABRIEL, Dieter

    IPC分类号： B23K26/32 ,  B23K26/28 ,  F02F3/16

    CPC分类号： F02F3/16 ,  B23K26/28 ,  B23K26/32 ,  B23K2201/003 ,  B23K2203/10 ,  F02F3/003 ,  F02F3/22 ,  F02F2003/0061 ,  Y10T29/49249

    摘要： Exemplary piston assemblies and methods of making the same are disclosed. An exemplary piston may include a piston body defining a piston axis, the piston body having a skirt and forming a lower surface of a cooling gallery. The body may include radially inner and outer body mating surfaces. The piston may further include a cooling gallery ring cooperating with the piston body to form the cooling gallery. The piston body and cooling gallery ring may be joined together along radially inner and radially outer interface regions to form a generally one-piece piston assembly. In some exemplary approaches, mating surfaces of the body and ring may be positioned adjacent a support surface configured to inhibit or prevent weld spatter formed in a process joining the ring and body from the cooling gallery.

    摘要翻译： 公开了示例性活塞组件及其制造方法。 示例性活塞可以包括限定活塞轴线的活塞主体，活塞主体具有裙部并形成冷却库的下表面。 主体可以包括径向内部和外部配合表面。 活塞还可以包括与活塞体协作以形成冷却槽的冷却槽环。 活塞体和冷却槽环可以沿着径向内部和径向外部界面区域连接在一起以形成大致一体式的活塞组件。 在一些示例性方法中，主体和环的配合表面可以被定位成邻近支撑表面，该支撑表面被配置为抑制或防止在从冷却库连接环和主体的过程中形成的焊接飞溅。