公开(公告)号：US20170274456A1

公开(公告)日：2017-09-28

申请号：US15465683

申请日：2017-03-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michael J. Walker ,  Jason R. Traub ,  Peter P. Andruskiewicz, IV

IPC: B22F5/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  B22F1/02 ,  F02F1/18 ,  B22F3/105 ,  B22F3/24 ,  B22F7/00 ,  B23K26/342 ,  B23K26/00 ,  B33Y10/00 ,  B22F1/00

Abstract: A method of manufacturing a highly insulating three-dimensional (3D) structure is provided. The method includes depositing a first layer of hollow microspheres onto a base. The hollow microspheres have a metallic coating formed thereon. A laser beam is scanned over the hollow microspheres so as to sinter the metallic coating of the hollow microspheres at predetermined locations. At least one layer of the hollow microspheres is deposited onto the first layer. Scanning by the laser beam is repeated for each successive layer until a predetermined 3D structure is constructed. The 3D structure includes a composite thermal barrier coating (TBC), which may be applied to a surface of components within an internal combustion engine, and the like. The composite TBC is bonded to the components of the engine to provide low thermal conductivity and low heat capacity insulation that is sealed against combustion gasses.

公开(公告)号：US20230234095A1

公开(公告)日：2023-07-27

申请号：US17586037

申请日：2022-01-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas J. Chapaton ,  Peter P. Andruskiewicz, IV

IPC: B05D3/10 ,  B05D3/12

CPC classification number: B05D3/102 ,  B05D3/12

Abstract: A method for preparing a metallic surface of a device includes executing iterations of a first cleaning regimen and executing iterations of a second cleaning regimen. The first cleaning regimen includes applying a hydrocarbon solvent, e.g., an iso-octane solution, to the metallic surface of the device, executing a first sonication event on the device, and rinsing the metallic surface of the device. The second cleaning regimen includes applying a solution of chlorinated solvent to the metallic surface of the device, executing a second sonication event on the device, and rinsing the metallic surface of the device.

公开(公告)号：US11220977B2

公开(公告)日：2022-01-11

申请号：US16539517

申请日：2019-08-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anthony M. Coppola ,  Peter P. Andruskiewicz, IV ,  Bradley A. Newcomb ,  Su Jung Han ,  Seongchan Pack

IPC: F02B75/08 ,  F02F1/00 ,  B05D7/22 ,  B05D3/12 ,  B05D7/00

Abstract: A linerless engine block includes a polymer matrix composite having an internal surface that defines a bore. The polymer matrix composite has a first thermal conductivity at the internal surface of at least 5 W/m·° C. The linerless engine block also includes a first bond coating disposed on the internal surface within the bore, and a second wear-resistant coating disposed on the first bond coating within the bore such that the second wear-resistant coating is adhered to the polymer matrix composite by the first bond coating. A method of forming the linerless engine block is also described.

公开(公告)号：US20210372345A1

公开(公告)日：2021-12-02

申请号：US16888511

申请日：2020-05-29

Applicant: GM Global Technology Operations LLC

Inventor： Peter P. Andruskiewicz, IV ,  Russell P. Durrett ,  Michael A. Potter ,  Paul M. Najt ,  Tobias A. Schaedler

IPC: F02F1/42 ,  F02F11/00 ,  B05D1/12 ,  B28B23/02 ,  B05D3/02 ,  B22D19/00

Abstract: An insulated exhaust port liner of a cylinder head assembly for fluidly connecting to an internal combustion engine of a motor vehicle includes a sealing layer. The sealing layer has a first surface defining a passage for fluidly connecting to the internal combustion engine and receiving exhaust gas. The sealing layer further includes a second surface opposite to the first surface. The liner further includes a thermal barrier layer coated onto the second surface of the sealing layer. The thermal barrier layer is a porous non-woven material for supporting the sealing layer on the cylinder head and reducing a transfer of heat from the sealing layer to the cylinder head.

公开(公告)号：US20180037510A1

公开(公告)日：2018-02-08

申请号：US15230675

申请日：2016-08-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Russell P. Durrett ,  Paul M. Najt ,  Peter P. Andruskiewicz, IV ,  Gary P. Hill ,  Tobias A. Schaedler

IPC: C04B35/622 ,  C23C16/56

CPC classification number: C04B35/62222 ,  C03C17/3411 ,  C03C2217/452 ,  C03C2217/475 ,  C04B38/00 ,  C04B2235/528 ,  C23C16/56 ,  C23C24/08 ,  C23C24/085 ,  C23C24/103 ,  C23C28/00 ,  C23C28/04 ,  C23C28/321 ,  C23C28/345

Abstract: A thermal barrier coating for a component includes an insulating layer applied to a surface of a substrate. The insulating layer comprises a plurality of ceramic microspheres. A sealing layer is bonded to the insulating layer. The sealing layer is non-permeable such that the sealing layer seals against the insulating layer. A method for applying a thermal barrier coating to a surface of a substrate of a component includes providing a plurality of ceramic microspheres and applying the plurality of ceramic microspheres to the surface of the substrate. At least one heat treatment is applied to the plurality of ceramic microspheres on the surface of the component to create an insulating layer on the surface of the substrate.

公开(公告)号：US20170234216A1

公开(公告)日：2017-08-17

申请号：US15433285

申请日：2017-02-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Russell P. Durrett ,  Paul M. Najt ,  Peter P. Andruskiewicz, IV ,  Jason R. Traub ,  Michael J. Walker

IPC: F02B77/11 ,  C23C4/129 ,  F02F3/10 ,  C25D3/12 ,  C25D15/00 ,  B23K1/00 ,  C23C18/16 ,  C25D7/00

Abstract: A composite thermal barrier coating (TBC) may be applied to a surface of components within an internal combustion engine. The composite TBC provides low thermal conductivity and low heat capacity insulation that is sealed against combustion gasses. The composite TBC includes three layers, bonded to one another, i.e., a first (bonding) layer, a second (insulating) layer, and a third (sealing) layer. The insulating layer is disposed between the bonding layer and the sealing layer. The bonding layer is bonded to the component and to the insulating layer. The insulating layer includes hollow microspheres that are sintered together to form insulation that provides a low effective thermal conductivity and low effective heat capacity. The sealing layer is a thin film that is configured to resist the high temperatures, present within the engine. The sealing layer is impermeable to gasses and presents a smooth surface.

公开(公告)号：US20200025238A1

公开(公告)日：2020-01-23

申请号：US16037663

申请日：2018-07-17

Applicant: GM Global Technology Operations LLC

Inventor： Anthony M. Coppola ,  Hamid G. Kia ,  Peter P. Andruskiewicz, IV ,  Paul M. Najt

IPC: F16C7/02 ,  B29C70/86 ,  B29C70/38 ,  F16C9/04

Abstract: A connecting rod includes a shank formed of a composite. The connecting rod also includes a first end portion coupled to the shank and a second end portion coupled to the shank. The first end portion has an annular shaped portion, and the second end portion has an annular shaped portion. The shank defines a channel coupled to the first and second end portions.A method of manufacturing a connecting rod includes placing a plurality of fibers in a predetermined arrangement, and adding a resin to the plurality of fibers to connect the fibers together and form a composite of at least a shank. The method also includes disposing a component inside the shank, and the component is utilized to define a channel in the shank. The method further includes coupling a first end portion to the shank, and coupling a second end portion to the shank.

公开(公告)号：US20190194812A1

公开(公告)日：2019-06-27

申请号：US15849883

申请日：2017-12-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michael J. Walker ,  Paul M. Najt ,  Russell P. Durrett ,  Peter P. Andruskiewicz, IV

IPC: C23C28/02 ,  C23C30/00 ,  C22C19/00 ,  C22C9/04 ,  B32B3/10 ,  B32B3/26 ,  B32B5/30 ,  B32B15/01

CPC classification number: C23C28/028 ,  B32B3/10 ,  B32B3/26 ,  B32B5/30 ,  B32B15/01 ,  B32B2305/026 ,  B32B2307/304 ,  B32B2311/12 ,  B32B2311/20 ,  B32B2311/22 ,  B32B2311/30 ,  C01P2004/34 ,  C01P2004/61 ,  C01P2006/32 ,  C22C9/04 ,  C22C19/002 ,  C23C28/021 ,  C23C28/023 ,  C23C30/005

Abstract: A multi-layer thermal barrier coating is provided that includes an insulating layer having an outer surface defining a plurality of crevices therein and a sealing layer bonded to the outer surface of the insulating layer. The sealing layer is substantially non-permeable and is configured to seal against the insulating layer. The sealing layer fills in at least a portion of the crevices. A method of forming a thermal barrier coating is also provided, which includes a step of providing a plurality of hollow round microstructures bonded together, each having a diameter in the range of 10 to 100 microns to create an insulating layer. The method further includes depositing a plurality of metal particles onto the insulating layer and heating the plurality of metal particles to form a substantially non-permeable sealing layer over the insulating layer.

公开(公告)号：US20190170082A1

公开(公告)日：2019-06-06

申请号：US15829441

申请日：2017-12-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anthony M. Coppola ,  Hamid G. Kia ,  Peter P. Andruskiewicz, IV ,  Michael A. Potter ,  Paul M. Najt ,  Russell P. Durrett

IPC: F02F1/16 ,  F02F1/00

Abstract: A cylinder liner assembly includes an inner wear cylinder, a shell disposed radially outside of an outer surface of the inner wear cylinder, and a central layer disposed between the inner wear cylinder and the shell. The inner wear cylinder is a metal or ceramic, the central layer is a porous material, and the shell is a fiber reinforced polymer. The cylinder liner assembly may include a coolant passage disposed adjacent to the outer surface of the inner wear cylinder, between the inner wear cylinder and the shell. The coolant passage is operable to circulate a coolant therethrough for cooling the inner wear cylinder.

公开(公告)号：US10190533B2

公开(公告)日：2019-01-29

申请号：US15230701

申请日：2016-08-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Russell P. Durrett ,  Paul M. Najt ,  Peter P. Andruskiewicz, IV ,  Tobias A. Schaedler ,  Gary P. Hill ,  John H. Martin ,  Christopher J. Ro

IPC: B22C3/00 ,  B22D25/02 ,  F02F1/42 ,  B29C39/02 ,  B29C39/38 ,  F01L3/04 ,  F02F3/10 ,  F02B77/02 ,  F02B77/11 ,  B29L31/30

Abstract: An internal combustion engine includes a component configured to be subjected to combustion gasses, the component includes a substrate presenting a surface and a coating applied to the surface of the substrate. The coating includes an insulating layer applied to the surface having a plurality of microspheres and a sealing layer bonded to the insulating layer and seals against the insulating layer.