公开(公告)号：US08967112B2

公开(公告)日：2015-03-03

申请号：US13679118

申请日：2012-11-16

Applicant: GM Global Technology Operations LLC

Inventor： Dale Edward Murrish ,  Donald J. Perella ,  Keith Hart

IPC: F16J15/26

CPC classification number: F16C3/06 ,  F02B75/06 ,  F02B75/22 ,  F02B2075/1824 ,  F16C3/08 ,  F16C3/20 ,  F16C2360/22 ,  F16F15/283

Abstract: A crankshaft includes first, second, third, and fourth main journals, each coaxially disposed along a crankshaft axis. A first, second, third, fourth, fifth, and sixth crank pin are each parallel with the crankshaft axis, and radially offset from the crankshaft axis. A first crank arm includes a first counterweight, and connects the first main journal and the first crank pin. A third crank arm includes a second counterweight, and connects the second crank pin and the second main journal. A seventh crank arm includes a third counterweight, and connects the third main journal and the fifth crank pin. A ninth crank arm includes a fourth counterweight, and connects the sixth crank pin and the fourth main journal. The first, second, third, and fourth counterweights are the only counterweights of the crankshaft.

Abstract translation: 曲轴包括沿着曲轴轴线同轴设置的第一，第二，第三和第四主轴颈。 第一，第二，第三，第四，第五和第六曲柄销各自与曲轴轴线平行，并且从曲轴轴线径向偏移。 第一曲柄臂包括第一配重，并且连接第一主轴颈和第一曲柄销。 第三曲柄臂包括第二配重，并且连接第二曲柄销和第二主轴颈。 第七曲柄臂包括第三配重，并连接第三主轴颈和第五曲柄销。 第九曲柄臂包括第四配重，并连接第六曲柄销和第四主轴颈。 第一，第二，第三，第四个配重是曲轴的唯一配重。

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：US20140137835A1

公开(公告)日：2014-05-22

申请号：US13679118

申请日：2012-11-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dale Edward Murrish ,  Donald J. Perella ,  Keith Hart

IPC: F16C3/06

CPC classification number: F16C3/06 ,  F02B75/06 ,  F02B75/22 ,  F02B2075/1824 ,  F16C3/08 ,  F16C3/20 ,  F16C2360/22 ,  F16F15/283

Abstract: A crankshaft includes first, second, third, and fourth main journals, each coaxially disposed along a crankshaft axis. A first, second, third, fourth, fifth, and sixth crank pin are each parallel with the crankshaft axis, and radially offset from the crankshaft axis. A first crank arm includes a first counterweight, and connects the first main journal and the first crank pin. A third crank arm includes a second counterweight, and connects the second crank pin and the second main journal. A seventh crank arm includes a third counterweight, and connects the third main journal and the fifth crank pin. A ninth crank arm includes a fourth counterweight, and connects the sixth crank pin and the fourth main journal. The first, second, third, and fourth counterweights are the only counterweights of the crankshaft.

Abstract translation: 曲轴包括沿着曲轴轴线同轴设置的第一，第二，第三和第四主轴颈。 第一，第二，第三，第四，第五和第六曲柄销各自与曲轴轴线平行，并且从曲轴轴线径向偏移。 第一曲柄臂包括第一配重，并且连接第一主轴颈和第一曲柄销。 第三曲柄臂包括第二配重，并且连接第二曲柄销和第二主轴颈。 第七曲柄臂包括第三配重，并连接第三主轴颈和第五曲柄销。 第九曲柄臂包括第四配重，并连接第六曲柄销和第四主轴颈。 第一，第二，第三，第四个配重是曲轴的唯一配重。