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    METHOD OF MANUFACTURING A CRANKSHAFT FROM A HIGH SHRINK METAL ALLOY
    2.
    发明申请
    METHOD OF MANUFACTURING A CRANKSHAFT FROM A HIGH SHRINK METAL ALLOY 审中-公开
    从高密度金属合金制造起重机的方法

    公开(公告)号：US20160084295A1

    公开(公告)日：2016-03-24

    申请号：US14492714

    申请日：2014-09-22

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Dale Edward Murrish ,  Edward R. Romblom ,  Brian J. McClory ,  Ronald M. Tkac ,  Donald J. Perella

    IPC分类号： F16C3/08 ,  B22C9/22 ,  F16F15/28 ,  B22D25/02 ,  C22C38/00 ,  B22C9/10 ,  B22D29/00

    CPC分类号： F16C3/08 ,  B22C9/10 ,  B22C9/103 ,  B22C9/22 ,  B22D25/02 ,  B22D29/001 ,  C22C38/00 ,  F16F15/283

    摘要： A crankshaft includes a pin bearing journal, and a counterweight. The pin bearing journal defines a hollow pin core. The hollow pin core includes a first pin core section and a second pin core section, and an enlarged central section disposed between the first pin core section and the second pin core section. The first and second pin core sections each define a cross section having a first and second cross sectional area respectively, and the enlarged central section defines a third cross section defining a third cross sectional area, with the third cross sectional area larger than the first and second cross sectional areas. An isolation window extends through the counterweight. The crankshaft is cast from a high shrink steel alloy having a shrinkage factor equal to or greater than 1%. The enlarged central section and the isolation window improve the castability of the high shrink steel alloy.

    摘要翻译： 曲轴包括销轴承轴颈和配重。 销轴承轴颈定义了空心销芯。 中空销芯包括第一销芯部分和第二销芯部分，以及设置在第一销芯部分和第二销钉部分之间的扩大中心部分。 第一和第二销芯部分分别限定具有第一和第二横截面面积的横截面，并且扩大的中心部分限定限定第三横截面积的第三横截面，第三横截面积大于第一横截面积 第二横截面。 隔离窗延伸穿过配重。 曲轴由收缩率等于或大于1％的高收缩钢合金铸造。 扩大的中心部分和隔离窗提高了高收缩钢合金的铸造性能。

    Core for cast crankshaft
    3.
    发明授权
    Core for cast crankshaft 有权
    铸造曲轴的芯

    公开(公告)号：US09388846B2

    公开(公告)日：2016-07-12

    申请号：US14489568

    申请日：2014-09-18

    申请人： GM Global Technology Operations LLC

    发明人： Ronald M. Tkac ,  Edward R. Romblom

    IPC分类号： F16C3/04 ,  B22C9/10 ,  F16C3/08

    CPC分类号： F16C3/08 ,  B22C9/10 ,  B22C9/103 ,  B22C9/108 ,  F16C2220/02

    摘要： A core structure for a cast crankshaft is provided which eliminates the need to machine and install plugs in one or more of the main bearing lightening holes. This is achieved by configuring the core structure to take out all but a thin wall of material in the center of the main bearing journals.

    摘要翻译： 提供了一种用于铸造曲轴的芯结构，其不需要在一个或多个主轴承减轻孔中加工和安装插头。 这可以通过配置核心结构来取出主轴承轴颈中心的材料薄壁。

    ENGINE ASSEMBLY INCLUDING A THERMAL BARRIER
    4.
    发明申请
    ENGINE ASSEMBLY INCLUDING A THERMAL BARRIER 有权
    发动机总成包括一个热障碍物

    公开(公告)号：US20160090937A1

    公开(公告)日：2016-03-31

    申请号：US14499889

    申请日：2014-09-29

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Edward R. Romblom

    IPC分类号： F02F1/40 ,  F02M63/02 ,  F02F7/00 ,  F02F1/42 ,  F02F1/14 ,  F02M61/14 ,  F02F1/24

    CPC分类号： F02F1/40 ,  F01N2260/20 ,  F02F1/14 ,  F02F1/242 ,  F02F1/4285 ,  F02F2001/106 ,  F02M53/043 ,  F02M61/14 ,  F02M63/0275 ,  F02M2200/03

    摘要： An engine assembly includes a cylinder block having at least one cylinder. The engine assembly includes at least one cylinder head coupled to the cylinder block, and at least one intake port coupled to the cylinder head, at least one exhaust port coupled to the cylinder head, and at least one fuel injector coupled to the cylinder head. The engine assembly includes a head cooling extension protruding from the cylinder head. The head cooling extension includes at least one extension wall and defines an extension cooling passageway at least partially enclosed by the at least one extension wall. The extension cooling passageway is at least partly disposed between the exhaust port and the fuel injector in order to create a thermal barrier between the fuel injector and the exhaust port when the coolant flows through the extension cooling passageway.

    摘要翻译： 发动机组件包括具有至少一个气缸的气缸体。 发动机组件包括联接到气缸体的至少一个气缸盖和联接到气缸盖的至少一个进气口，联接到气缸盖的至少一个排气口和联接到气缸盖的至少一个燃料喷射器。 发动机组件包括从气缸盖突出的头部冷却延伸部。 头部冷却延伸部包括至少一个延伸壁并且限定至少部分地被至少一个延伸壁包围的延伸冷却通道。 延伸冷却通道至少部分地布置在排气口和燃料喷射器之间，以便当冷却剂流过延伸冷却通道时在燃料喷射器和排气口之间产生热障碍。