公开(公告)号：US20200182188A1

公开(公告)日：2020-06-11

申请号：US16214739

申请日：2018-12-10

Applicant: GM Global Technology Operations LLC

Inventor： Lokesh Choudhary ,  Su Jung Han ,  Martin S. Kramer ,  Brian W. Geiser ,  Brian Christopher Leuenhagen

IPC: F02F1/10 ,  B22D19/00 ,  F02F7/00 ,  F02F1/00 ,  B22D15/02

Abstract: A cylinder block for use in an internal combustion engine includes a first and second cylinder bores, a first and second cylinder bore liners, and a Siamese insert. The first and second cylinder bores are disposed adjacent to each other. The first and second cylinder bores each comprise a first cylinder bore wall and a second cylinder bore wall, respectively, and a shared cylinder bore wall. The first cylinder bore liner is disposed on a first inner surface of the first cylinder bore wall and the second cylinder bore liner is disposed on a second inner surface of the second cylinder bore wall. The Siamese insert is disposed in a top portion of the shared cylinder bore wall.

公开(公告)号：US10781769B2

公开(公告)日：2020-09-22

申请号：US16214739

申请日：2018-12-10

Applicant: GM Global Technology Operations LLC

Inventor： Lokesh Choudhary ,  Su Jung Han ,  Martin S. Kramer ,  Brian W. Geiser ,  Brian Christopher Leuenhagen

IPC: F02F1/04 ,  F02F1/10 ,  B22D19/00 ,  F02F7/00 ,  B22D15/02 ,  F02F1/00 ,  F02B75/18

Abstract: A cylinder block for use in an internal combustion engine includes a first and second cylinder bores, a first and second cylinder bore liners, and a Siamese insert. The first and second cylinder bores are disposed adjacent to each other. The first and second cylinder bores each comprise a first cylinder bore wall and a second cylinder bore wall, respectively, and a shared cylinder bore wall. The first cylinder bore liner is disposed on a first inner surface of the first cylinder bore wall and the second cylinder bore liner is disposed on a second inner surface of the second cylinder bore wall. The Siamese insert is disposed in a top portion of the shared cylinder bore wall.

公开(公告)号：US20200173317A1

公开(公告)日：2020-06-04

申请号：US16208615

申请日：2018-12-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Edward J. Keating ,  Brian W. Geiser

IPC: F01L3/02 ,  F01L3/22 ,  B22F7/06

Abstract: A cylinder head assembly for an internal combustion engine includes a main body, a valve seat insert, and at least one flow passage extending through the main body. The main body may be formed from a first material and defines a recess configured to cooperate with an associated cylinder bore and piston to form a combustion chamber. The flow passage may extend through the main body from the recess. The valve seat insert may be disposed within the recess proximate to an end of the flow passage. The valve seat insert includes a thermally conductive layer of powdered metal having an upper side disposed adjacent to the main body, a hardness layer of powdered metal, and a machining layer of powdered metal.