公开(公告)号：US20160084295A1

公开(公告)日：2016-03-24

申请号：US14492714

申请日：2014-09-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

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

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20180334958A1

公开(公告)日：2018-11-22

申请号：US15600166

申请日：2017-05-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jessica L. Krajenke ,  Ronald M. Tkac ,  Vincent J. Tylutki

IPC: F02C6/12 ,  F01D25/30

Abstract: A turbocharger assembly is provided which prevents liquid moisture 82 from damaging an air fuel ratio sensor affixed to the exhaust pipe. The turbocharger assembly includes a turbine housing, a turbine wheel, a volute defined in the turbine housing, and an upwardly extending exhaust pipe. The turbine housing may be affixed to a center turbocharger housing member. The turbine housing includes an anterior region and a posterior region having the volute. The turbine wheel may be disposed in the turbine housing. A liquid moisture 82 pathway may be defined in the turbine housing and is configured to provide liquid fluid communication from the anterior region toward the volute.

公开(公告)号：US09388846B2

公开(公告)日：2016-07-12

申请号：US14489568

申请日：2014-09-18

Applicant: GM Global Technology Operations LLC

Inventor： Ronald M. Tkac ,  Edward R. Romblom

IPC: F16C3/04 ,  B22C9/10 ,  F16C3/08

CPC classification number: F16C3/08 ,  B22C9/10 ,  B22C9/103 ,  B22C9/108 ,  F16C2220/02

Abstract: 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.

Abstract translation: 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。