公开(公告)号：US20180238263A1

公开(公告)日：2018-08-23

申请号：US15439076

申请日：2017-02-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Garrold A. DeGrace ,  Maurice G. Meyer ,  Paul Boone ,  Gregory T. Naismith

IPC: F02F1/00

CPC classification number: F02F1/14 ,  F02F2001/008 ,  F02F2200/06

Abstract: A cylinder liner for an engine block that includes an inter-bore saw cut includes a first engine block bonding surface, and a second engine block bonding surface that has a lower level of bonding between the cylinder liner and an engine block than the first engine block bonding surface. The second engine block bonding surface extending from an axial end portion of the liner a distance greater than a depth of the saw cut in inter-bore section of the engine block.

公开(公告)号：US10247129B2

公开(公告)日：2019-04-02

申请号：US15439076

申请日：2017-02-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Garrold A DeGrace ,  Maurice G Meyer ,  Paul Boone ,  Gregory T Naismith

IPC: F02F1/00 ,  F02F1/14

Abstract: A cylinder liner for an engine block that includes an inter-bore saw cut includes a first engine block bonding surface, and a second engine block bonding surface that has a lower level of bonding between the cylinder liner and an engine block than the first engine block bonding surface. The second engine block bonding surface extending from an axial end portion of the liner a distance greater than a depth of the saw cut in inter-bore section of the engine block.

公开(公告)号：US20240191326A1

公开(公告)日：2024-06-13

申请号：US18064980

申请日：2022-12-13

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Liang Wang ,  Daniel J. Wilson ,  Dale A. Gerard ,  Devin R. Hess ,  Paul Boone

IPC: C22C21/02 ,  B22D17/00 ,  B22D21/00

CPC classification number: C22C21/02 ,  B22D17/00 ,  B22D21/007

Abstract: An aluminum alloy for high pressure die casting of ultra-large vehicle body structures. The aluminum alloy includes about 4.00 to about 12.00 weight percent silicon (Si); about 0.20 weight percent maximum (Max) copper (Cu); about 0.40 weight percent Max magnesium (Mg); about 0.20 to about 0.60 weight percent iron (Fe); about 1.00 weight percent Max manganese (Mn); about 0.50 weight percent Max zinc (Zn); about 0.02 weight percent Max strontium (Sr); about 0.50 weight percent Max cerium (Ce); about 0.01 weight Max percent boron (B); and a remaining weight percent aluminum (Al). The aluminum alloy provides an as-cast yield strength of greater than 130 Megapascals (MPa), ultimate tensile strength of greater than 260 MPa, and elongation of greater than 6% without the need for heat treatment.