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    PISTON FOR AXIAL PISTON PUMP MOTOR, CYLINDER BLOCK FOR AXIAL PISTON PUMP MOTOR, AND AXIAL PISTON PUMP MOTOR
    42.
    发明公开
    PISTON FOR AXIAL PISTON PUMP MOTOR, CYLINDER BLOCK FOR AXIAL PISTON PUMP MOTOR, AND AXIAL PISTON PUMP MOTOR 有权
    用于轴向柱塞泵马达的活塞，用于轴向柱塞泵马达的缸柱塞和轴向柱塞泵马达

    公开(公告)号：EP2988003A1

    公开(公告)日：2016-02-24

    申请号：EP14785582.9

    申请日：2014-02-20

    申请人： Kawasaki Jukogyo Kabushiki Kaisha

    发明人： YOSHIMURA, Isamu ,  NOMURA, Ryo ,  WADA, Hisao ,  SAKAI, Ryuji

    IPC分类号： F04B1/22 ,  F03C1/253 ,  F04B53/14 ,  F04B53/16

    CPC分类号： F16J1/09 ,  F01B3/007 ,  F03C1/0605 ,  F04B1/124 ,  F04B1/22 ,  F04B27/0878 ,  F04B39/122 ,  F04B53/14

    摘要： An end part of a piston (5) on a front edge side is formed so as to have a crowning of a 1.2-order to 2.5-order curve where a length is 10% or more and 80% or less of a length of a cylindrical part (20) and a height is 10% or more and 160% or less of a clearance. An end part of the piston (5) on a rear edge side is formed so as to have a crowning of a 1.2-order to 2.5-order curve where a length is 10% or more and 60% or less of the length of the cylindrical part (20) and a height is 10% or more and 160% or less of the clearance. An end part of a cylinder block (3) on a front edge side is formed so as to have a crowning of a 1.2-order to 2.5-order curve where a length is 8% or more and 60% or less of the length of a cylindrical part (20) and a height is 12% or more and 125% or less of the clearance.

    摘要翻译： 活塞（5）的前端侧的端部形成为长度为长度的10％以上且80％以下的1.2阶〜2.5阶曲线的隆起 圆筒部20的高度为间隙的10％以上且160％以下。 活塞（5）的后端侧的端部形成为长度为长度的10％以上且60％以下的1.2阶〜2.5阶曲线的隆起 圆筒部20的高度为该间隙的10％以上且160％以下。 前缘侧的缸体（3）的端部形成为长度为长度的8％以上且60％以下的1.2阶〜2.5阶曲线的隆起 圆柱形部分（20）和高度为间隙的12％或更大和125％或更小。

    PISTON ASSEMBLY FOR A RECIPROCATING ENGINE
    43.
    发明公开
    PISTON ASSEMBLY FOR A RECIPROCATING ENGINE 审中-公开
    KOLBENANORDNUNGFÜREINEN HUBKOLBENMOTOR

    公开(公告)号：EP2982886A1

    公开(公告)日：2016-02-10

    申请号：EP15179639.8

    申请日：2015-08-04

    申请人： General Electric Company

    发明人： DONAHUE, Richard John

    IPC分类号： F16J1/09 ,  F02F3/00 ,  F16J9/08

    CPC分类号： F16J9/08 ,  F02F3/24 ,  F02F3/28 ,  F16J1/09 ,  F16J9/064

    摘要： A power cylinder system for a reciprocating engine (10) includes a piston (20) configured to move within a cylinder (26). A top-most groove (42) extends circumferentially about the piston and is configured to support a first ring (44), and a space is defined between a portion of the top-most groove and an inner circumferential face of the first ring while the first ring is disposed within the top-most groove. A bottom-most groove (46) extends circumferentially about the piston (20) and is axially spaced apart from the top-most groove (42). A second ring (48) positioned in the bottom-most groove is configured to exert a pressure of less than approximately 1 MPa against an inner annular wall of the cylinder while the piston is positioned within the cylinder. One or more channels formed in the top land are configured to transfer combustion gases to the space while the first ring is disposed within the top-most groove.

    摘要翻译： 用于往复式发动机（10）的动力缸系统包括构造成在气缸（26）内移动的活塞（20）。 最外面的凹槽（42）围绕活塞周向延伸并且被构造成支撑第一环（44），并且在最顶部凹槽的一部分和第一环的内圆周面之间限定空间，而 第一环设置在最上面的凹槽内。 最底部的凹槽（46）围绕活塞（20）周向延伸并且与最顶部凹槽（42）轴向间隔开。 定位在最下面凹槽中的第二环（48）构造成当活塞位于气缸内时，相对于气缸的内环壁施加小于约1MPa的压力。 在顶部区域中形成的一个或多个通道构造成将燃烧气体转移到空间，同时第一环设置在最上面的凹槽内。

    KOLBEN FÜR EINEN VERBRENNUNGSMOTOR
    44.
    发明公开
    KOLBEN FÜR EINEN VERBRENNUNGSMOTOR 有权
    KOLBENFÜREINEN VERBRENNUNGSMOTOR

    公开(公告)号：EP2681469A1

    公开(公告)日：2014-01-08

    申请号：EP12712568.0

    申请日：2012-03-02

    申请人： Mahle International GmbH

    发明人： SCHARP, Rainer

    IPC分类号： F16J1/09 ,  F02F3/22

    CPC分类号： F16J1/09 ,  F02F3/003 ,  F02F3/22

    摘要： The present invention relates to a piston (10) for an internal combustion engine, having an outer circumferential cooling channel (19) and an inner cooling cavity (21), the cooling cavity bottom (22) of which has an opening (23) that is closed off with a separate closure element (33) that has at least one cooling oil opening (35), whereby the closure element (33) is held, in clamped manner, by means of two engagement elements (37) disposed on the outer edge, in at least one engagement groove (34) provided in the region of the opening (23) of the cooling cavity bottom (22). According to the invention, it is provided that the closure element (33) has at least two spring tabs (38) that support themselves on a contact surface (39) provided in the piston interior, in each instance, in such a manner that the closure element (33) is held in the engagement groove (34) under axial bias.

    摘要翻译： 本发明涉及一种用于内燃机的活塞（10），其具有外圆周冷却通道（19）和内冷却腔（21），其冷却腔底部（22）具有开口（23），该开口 通过具有至少一个冷却油开口（35）的单独的封闭元件（33）封闭，其中封闭元件（33）通过布置在外部的两个接合元件（37）以夹紧的方式被保持， 在设置在冷却腔底部（22）的开口（23）的区域中的至少一个接合槽（34）中接合。 根据本发明提出，封闭元件（33）具有至少两个弹簧片（38），这些弹簧片分别以这样的方式支撑在设置在活塞内部的接触表面（39）上： 封闭元件（33）在轴向偏置下保持在接合槽（34）中。