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    EXHAUST VALVE FOR AN INTERNAL COMBUSTION ENGINE, AND A METHOD OF STRENGTHENING AN ANNULAR VALVE SEAT AREA IN AN EXHAUST VALVE
    1.
    发明申请
    EXHAUST VALVE FOR AN INTERNAL COMBUSTION ENGINE, AND A METHOD OF STRENGTHENING AN ANNULAR VALVE SEAT AREA IN AN EXHAUST VALVE 审中-公开
    用于内燃机的排气阀以及在排气阀中加强安全阀座椅区域的方法

    公开(公告)号：US20150285109A1

    公开(公告)日：2015-10-08

    申请号：US14678057

    申请日：2015-04-03

    申请人： MAN Diesel & Turbo, Filial af MAN Diesel & Turbo SE, Tyskland

    发明人： Harro Andreas HOEG ,  Christian SKAANING

    IPC分类号： F01L3/02 ,  C21D1/18

    CPC分类号： F01L3/02 ,  B21K1/22 ,  B23P15/002 ,  C21D1/18 ,  C22C19/058 ,  C22C38/00 ,  F01L2103/00

    摘要： An exhaust valve for an internal combustion engine comprises a valve disc having a first side (14) and a second side (16), a valve stem extending from the first side of the valve disc, and an annular valve seat area (11) located at the first side of the valve disc. The annular valve seat area (11) is of a nickel-base alloy or a chromium-base alloy and has a valve seat surface. The annular valve seat area has at least a first annular portion (43) located in between two second annular portions (42). The first annular portion has lower hardness than the two second annular portions.

    摘要翻译： 用于内燃机的排气阀包括具有第一侧（14）和第二侧（16）的阀盘，从阀盘的第一侧延伸的阀杆和位于阀座的环形阀座区域（11） 在阀盘的第一侧。 环形阀座区域（11）为镍基合金或铬基合金，并具有阀座面。 环形阀座区域具有位于两个第二环形部分（42）之间的至少第一环形部分（43）。 第一环形部分具有比两个第二环形部分低的硬度。

    Method for stabilizing a piston ring and means for carrying out said method and use of same
    2.
    发明申请
    Method for stabilizing a piston ring and means for carrying out said method and use of same 审中-公开
    用于稳定活塞环的方法和用于执行所述方法和使用其的装置

    公开(公告)号：US20110260410A1

    公开(公告)日：2011-10-27

    申请号：US12997065

    申请日：2009-06-12

    申请人： Jorgen Meier

    发明人： Jorgen Meier

    IPC分类号： F16J15/16 ,  F02F5/00 ,  F02F3/00

    CPC分类号： F16J9/20 ,  F16J9/22

    摘要： A piston ring (6) which is arranged with radial and axial play in an associated piston ring groove (5) in a piston (1) of a reciprocating internal combustion engine can be stabilized to prevent tilting on and contact with the radially outer edge of the piston ring groove (5) by the cross section of the piston ring (6) and/or the piston ring groove (5) being designed in such a manner that a gap is formed between the lower side of the piston ring (6) and the lower supporting surface of the associated piston ring groove (5), said gap opening vertically radially outwards in the radial direction and, when the piston ring (6) is not subjected to a load, remaining open to the outside irrespective of the temperature of the piston (1) for as long as the piston ring (6) is not loaded by pressure on the top side. The effect achieved by this is that, when a piston (1) is deformed under the action of heat during operation, the initial contact between the lower side of the piston ring (6) and the opposite, lower supporting surface of the piston ring groove (5) begins at least in a region of the lower side of the piston ring (6), which region faces the piston axis, and rubbing of the piston ring (6) on the radially outer edge of the piston ring groove (5) is prevented.

    摘要翻译： 在往复式内燃机的活塞（1）中的相关联的活塞环槽（5）中以径向和轴向方式布置的活塞环（6）可以被稳定，以防止倾斜和接触径向外边缘 通过活塞环（6）的横截面和/或活塞环槽（5）的活塞环槽（5）以在活塞环（6）的下侧之间形成间隙的方式设计， 和相关联的活塞环槽（5）的下支撑表面，所述间隙在径向方向上垂直向外垂直，并且当活塞环（6）不受负载时，不管温度如何，都保持向外开放 只要活塞环（6）没有通过顶部的压力来加载活塞（1）。 这样做的效果是，当活塞（1）在运行期间在热作用下变形时，活塞环（6）的下侧与活塞环槽的相对的下支撑表面之间的初始接触 （5）至少在活塞环（6）的下侧的区域中开始，该区域面向活塞轴线，并且在活塞环槽（5）的径向外边缘上摩擦活塞环（6） 被阻止

    Exhaust valve spindle for an exhaust valve in an internal combustion engine
    7.
    发明授权
    Exhaust valve spindle for an exhaust valve in an internal combustion engine 有权
    用于内燃机排气阀的排气阀主轴

    公开(公告)号：US09464730B2

    公开(公告)日：2016-10-11

    申请号：US13915034

    申请日：2013-06-11

    申请人： MAN DIESEL & TURBO, FILIAL OF MAN DIESEL & TURBO SE, TYSKLAND

    发明人： Uffe Bihlet

    IPC分类号： F16K41/00 ,  F01L3/04 ,  C22C19/05 ,  C22F1/08 ,  B22F3/15 ,  B22F5/00 ,  C22C1/04

    CPC分类号： F16K41/00 ,  B22F3/15 ,  B22F5/008 ,  C22C1/0433 ,  C22C19/05 ,  C22C19/058 ,  C22F1/08 ,  F01L3/04 ,  Y10T29/493

    摘要： An exhaust valve spindle for an exhaust valve in an internal combustion engine has a shaft and a valve disc at the lower end of the shaft, which valve disc at its upper surface has a seat area. The seat area is of a seat material comprising at least from 34.0 to 44.0% Cr, an aggregate amount of Nb and Ta in the range from at least 2.8 to 6.1%, from 0.3 to 2.0% Ti, at the most 0.2% Al, at the most 0.04% B, at the most 0.8% Fe, at the most 0.04% C, at the most 0.4% Si, and a balance of Ni, where the amount of Ti+Nb+0.5×Ta is in the range from 3.4 to 6.6%, and where the amount of Nb+0.5×Ta is less than 3.0% if the amount of Ti is larger than 1.5%.

    摘要翻译： 用于内燃机中的排气阀的排气门主轴在轴的下端具有轴和阀盘，其上表面上的该阀盘具有座位区域。 座椅区域为座椅材料，其包含至少34.0至44.0％的Cr，Nb和Ta的总量在至少2.8至6.1％，0.3至2.0％Ti，最多0.2％的Al， 最多0.04％的B，最多0.8％的Fe，最多0.04％的C，最多0.4％的Si和余量的Ni，其中Ti + Nb + 0.5×Ta的量在 3.4〜6.6％，如果Ti的量大于1.5％，则Nb + 0.5×Ta的量小于3.0％。

    EXHAUST VALVE SPINDLE FOR AN EXHAUST VALVE IN AN INTERNAL COMBUSTION ENGINE
    8.
    发明申请
    EXHAUST VALVE SPINDLE FOR AN EXHAUST VALVE IN AN INTERNAL COMBUSTION ENGINE 审中-公开
    用于内燃机排气阀的排气阀主轴

    公开(公告)号：US20150337694A1

    公开(公告)日：2015-11-26

    申请号：US14819655

    申请日：2015-08-06

    申请人： MAN DIESEL & TURBO, FILIAL AF MAN DIESEL & TURBO SE, TYSKLAND

    发明人： Uffe BIHLET

    IPC分类号： F01L3/04 ,  B22F5/00

    CPC分类号： F16K41/00 ,  B22F3/15 ,  B22F5/008 ,  C22C1/0433 ,  C22C19/05 ,  C22C19/058 ,  C22F1/08 ,  F01L3/04 ,  Y10T29/493

    摘要： An exhaust valve spindle for an exhaust valve in an internal combustion engine has a shaft and a valve disc at the lower end of the shaft, which valve disc at its upper surface has a seat area. The seat area is of a seat material comprising at least from 34.0 to 44.0% Cr, an aggregate amount of Nb and Ta in the range from at least 2.8 to 6.1%, from 0.3 to 2.0% Ti, at the most 0.2% Al, at the most 0.04% B, at the most 0.8% Fe, at the most 0.04% C, at the most 0.4% Si, and a balance of Ni, where the amount of Ti+Nb+0.5×Ta is in the range from 3.4 to 6.6%, and where the amount of Nb+0.5×Ta is less than 3.0% if the amount of Ti is larger than 1.5%.

    摘要翻译： 用于内燃机中的排气阀的排气门主轴在轴的下端具有轴和阀盘，其上表面上的该阀盘具有座位区域。 座椅区域为座椅材料，其包含至少34.0至44.0％的Cr，Nb和Ta的总量在至少2.8至6.1％，0.3至2.0％Ti，最多0.2％的Al， 最多0.04％的B，最多0.8％的Fe，最多0.04％的C，最多0.4％的Si和余量的Ni，其中Ti + Nb + 0.5×Ta的量在 3.4〜6.6％，如果Ti的量大于1.5％，则Nb + 0.5×Ta的量小于3.0％。