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    Engine Piston
    2.
    发明申请
    Engine Piston 有权
    发动机活塞

    公开(公告)号：US20160138520A1

    公开(公告)日：2016-05-19

    申请号：US14546674

    申请日：2014-11-18

    Applicant: Caterpillar Inc.

    Inventor： James A. Subatch, Jr. ,  Matthew I. Rowan ,  Scott P. Coulier ,  Ashutosh Katari ,  Nikhil O. Lulla ,  James C. Weber ,  Steven C. Zoz

    IPC: F02F3/28 ,  F02F3/00

    CPC classification number: F02F3/28 ,  F02B3/06 ,  F02B23/06 ,  F02B23/0621 ,  F02B23/0696 ,  F02B23/101 ,  F02F3/00 ,  F02F3/0015 ,  F02F3/22 ,  F05C2201/021 ,  F05C2201/0448 ,  Y02T10/125

    Abstract: A piston for an internal combustion engine includes a piston body forming a crown portion and a skirt portion. The skirt portion includes a bore that receives a pin for connecting the piston to a connecting rod, and the crown portion forms a bowl surrounded by a flat crown surface having an annular shape and disposed along a plane. The bowl and the flat crown surface meet along a circular edge surrounding a rim of the bowl. The piston further includes an annular protrusion disposed within the bowl adjacent the rim. The annular protrusion has a generally convex shape in cross section created by an upper, inwardly extending surface and a lower, inwardly extending surface that meet along a convex apex. The piston further includes an airfoil surface formed in the flat crown surface. The airfoil surface has a convex shape and extends annularly around the rim of the bowl.

    Abstract translation: 用于内燃机的活塞包括形成冠部和裙部的活塞体。 裙部包括容纳用于将活塞连接到连接杆的销的孔，并且冠部形成由具有环形形状并且沿着平面设置的平坦冠状表面包围的碗。 碗和平冠表面围绕碗的边缘周围的圆形边缘相交。 活塞还包括邻近边缘设置在碗内的环形突起。 环形突起具有由上部向内延伸的表面和沿着凸起顶点相交的下部向内延伸的表面形成的横截面的大致凸形形状。 活塞还包括形成在平坦冠面中的翼型面。 翼型表面具有凸形并围绕碗的边缘环形地延伸。

    Engine Piston
    3.
    发明申请
    Engine Piston 审中-公开
    发动机活塞

    公开(公告)号：US20160138519A1

    公开(公告)日：2016-05-19

    申请号：US14546655

    申请日：2014-11-18

    Applicant: Caterpillar Inc.

    Inventor： James A. Subatch, Jr. ,  Matthew I. Rowan ,  Scott P. Coulier ,  Ashutosh Katari ,  Nikhil O. Lulla ,  James C. Weber ,  Steven C. Zoz

    IPC: F02F3/28 ,  F02F3/02

    CPC classification number: F02F3/28 ,  F02B23/06 ,  F02B23/0621 ,  F02B23/0624 ,  F02B23/0684 ,  F02B23/0696 ,  F02B23/101 ,  F02F3/02 ,  Y02T10/125

    Abstract: A piston for an internal combustion engine includes a piston body forming a crown portion and a skirt portion. The skirt portion includes a bore that is arranged to receive a pin for connecting the piston to a connecting rod. The crown portion forms a bowl surrounded by a flat crown surface having an annular shape. The bowl and the flat crown surface meet along a circular edge surrounding a rim of the bowl. The piston further includes an annular protrusion disposed within the bowl adjacent the rim. The annular protrusion has a generally convex shape in cross section created by an upper, inwardly extending surface and a lower, inwardly extending surface that meet along a convex apex. The piston further includes a recirculation surface formed within the bowl adjacent the annular protrusion. The recirculation surface meets the lower, inwardly extending surface along an inflection edge.

    Abstract translation: 用于内燃机的活塞包括形成冠部和裙部的活塞体。 裙部包括孔，该孔被布置成接收用于将活塞连接到连接杆的销。 冠部形成由具有环形形状的平坦的冠表面包围的碗。 碗和平冠表面围绕碗的边缘周围的圆形边缘相交。 活塞还包括邻近边缘设置在碗内的环形突起。 环形突起具有由上部向内延伸的表面和沿着凸起顶点相交的下部向内延伸的表面形成的横截面的大致凸形形状。 活塞还包括邻近环形突起形成在碗内的再循环表面。 再循环表面沿着弯曲边缘与下部向内延伸的表面相接触。

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