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公开(公告)号：US20250079956A1
公开(公告)日：2025-03-06
申请号：US18467159
申请日：2023-09-14
Applicant: GM Global Technology Operations LLC
Inventor： Yiwu Xu , Hongyi Zhan , Wenying Yang , Qigui Wang
Abstract: A die cast part, such as an electric drive unit, a high pressure die casting system, and a method of forming a die cast part. The high pressure die casting system includes a shot sleeve including a pour hole, a launder connected to the pour hole, a furnace connected to the launder, a mold cavity connected to the shot sleeve by a sprue post, and a heating system including at least one proximal channel located under the pour hole under the shot sleeve. The feedstock is melted in the furnace and transferred by a launder into the preheated shot sleeve through a pour hole. The feedstock is injected into a mold cavity, wherein the temperature of the feedstock is above the solidus temperature of the feedstock upon entering the mold cavity.
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公开(公告)号：US20240421645A1
公开(公告)日：2024-12-19
申请号：US18337192
申请日：2023-06-19
Applicant: GM Global Technology Operations LLC
Inventor： Yi Liu , Qigui Wang , Huaxin Li , Kestutis A. Sonta , Daniel J. Wilson
Abstract: A conductive composite stator unit for an electric motor of a vehicle is provided. The stator unit comprises a stator core comprising a body having a first core end and an opposing second core end. The stator unit further comprises a plurality of conductive bars extending from the first core end to the second core end. Each conductive bar comprises a straight portion disposed in one of the slots such that the respective conductive bar is in contact with the stator core. Each conductive bar comprising a central portion and an outer layer disposed thereabout for electrical current to flow therethrough relative to the longitudinal axis, the outer layer comprises at least two copper-graphene (Cu-Gr) layers. Each Cu-Gr layer comprises a copper layer and a graphene layer. The stator unit further comprises an insulator layer disposed about each of the plurality of conductive bars.
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3.发明公开公开(公告)号：US20240181523A1
公开(公告)日：2024-06-06
申请号：US18060741
申请日：2022-12-01
Applicant: GM Global Technology Operations LLC
Inventor： Dale A. Gerard , Qigui Wang , Paul J. Boone
IPC: B22D17/20
CPC classification number: B22D17/203 , B22D17/2061
Abstract: A system and method of using a smart insert pin for making a casting for a vehicle, in which the casting includes a boss having internal threads. The system includes a mold and an insert pin insertable into the mold. The mold includes a portion of a mold cavity defining a boss shaped cavity and a bore in communication with the boss shaped cavity. The insert pin includes a first portion having external threads and a second portion extending from the first portion. The second portion of the insert pin is insertable into the bore with the first portion extending into the portion of the mold cavity defining the boss shaped cavity. The mold cavity is fill with a molten metal. The molten metal is cooled into a solidified casting. The insert pin is unfastened from the casting leaving a cast boss with an internal threaded bore.
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公开(公告)号：US11992874B2
公开(公告)日：2024-05-28
申请号：US17307295
申请日：2021-05-04
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Andrew Thomas Cunningham , Zach Steffes , Jeffrey B. Harris , Brennon L. White , Liang Wang
CPC classification number: B22C9/086 , B01D39/2075 , B01D39/2093 , B28B1/001 , B01D2239/12 , B33Y10/00 , B33Y80/00
Abstract: A method to manufacture a ceramic foam filter includes: sintering a filter body to a temperature greater than a molten metal to be filtered through the body; creating multiple tortuous path channels extending through the filter body individually having a repeated and controlled passage geometry creating a continuously changing diameter and area of a flow path through the multiple tortuous path channels causing localized increases and decreases in molten metal flow rate through the multiple tortuous path channels; and applying a mixture of at least one ceramic powder and at least one binder using additive manufacturing to shape the filter body including the multiple tortuous path channels.
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公开(公告)号：US20240123494A1
公开(公告)日：2024-04-18
申请号：US18045947
申请日：2022-10-12
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Liang Wang , Daniel J. Wilson , Dale A. Gerard , Devin R. Hess , Paul J. Boone
Abstract: A high pressure die casting (HPDC) system for casting ultra-large single-piece castings for vehicles. The HPDC system includes a clear feeding path from at least one ingate to a predetermined thicker section of a mold cavity, a last to solidify ingate having an equivalent or larger feeding modulus than the highest feeding modulus of the other ingates, and thermal management elements. The clear feeding path, last to solidify ingate, and thermal management elements ensure sufficient supplemental molten metal flow to the thicker portion of the mold cavity to accommodate for shrinkage of the thicker portion of an ultra large casting during the casting and solidification process.
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Patent Agency Ranking
公开(公告)号：US20230417203A1
公开(公告)日：2023-12-28
申请号：US17809421
申请日：2022-06-28
Applicant: GM Global Technology Operations LLC
Inventor： Ronald John Petrus , Jared Matthew Satkowiak , Hsiao F. Wong , Kenneth E. Schroeder , Qigui Wang , Richard D. Ricchi
CPC classification number: F02F3/0084 , F02F3/00 , B33Y80/00 , B33Y40/10 , B22F1/142 , C22C21/00 , F02F2003/0007 , B33Y10/00
Abstract: An additive manufactured piston having a crown portion and a skirt portion form of an aluminum-cerium-silicon alloy. The piston includes a least one recess pocket in an unstressed region located at an interface between an inner surface of the crown portion and an outer surface of the skirt portion. The skirt portion includes an outer panel surface defining an external rib adjacent a peripheral end surface, at least one stiffening rib extending from a pin boss to a skirt end, and a wall thickness of between 0.2 mm and 1.0 mm in a region between the external rib and the at least one stiffening rib. The skirt portion further includes an internal first rib having a width W1 on a thrust side portion and an internal second rib having a width W2 located on an anti-thrust side portion, in which W1 is greater than W2.
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7.发明公开公开(公告)号：US20230349342A1
公开(公告)日：2023-11-02
申请号：US17731365
申请日：2022-04-28
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Jeffrey B. Harris , Ante Tony Lausic , Paul J. Wolcott , Dale A. Gerard , Tyson Whittier Brown
CPC classification number: F02F3/0084 , B22F10/28 , B33Y10/00 , B33Y80/00 , F16J9/00 , F02F2200/00
Abstract: A method to manufacture an automobile vehicle engine aluminum piston, comprises: printing an aluminum piston crown portion including an additive manufacturing (AM) piston crown work piece using initial aluminum powders defining an initial aluminum powder bed; removing the aluminum piston crown portion from the initial aluminum powder bed; fixedly joining a cast iron ring carrier to the AM piston crown work piece; placing the aluminum piston crown portion together with the cast iron ring carrier into a secondary and a tertiary aluminum powder bed; and printing a piston skirt integrally connected to the AM piston crown work piece and to the cast iron ring carrier.
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公开(公告)号：US11772156B2
公开(公告)日：2023-10-03
申请号：US17153049
申请日：2021-01-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Qigui Wang , Thomas W. Gustafson , Steven L Burkholder , Daniel J. Wilson , Gregory Melekian
Abstract: Methods and systems are provided for continuously producing cast metal components. An exemplary method includes feeding molten metal into a first mold at a fill station; maintaining a pressurized chamber at an elevated pressure; moving the first mold into the pressurized chamber, wherein the molten metal solidifies in the first mold under the elevated pressure; and removing the first mold from the pressurized chamber.
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公开(公告)号：US11655776B1
公开(公告)日：2023-05-23
申请号：US17704535
申请日：2022-03-25
Applicant: GM Global Technology Operations LLC
Inventor： Ronald John Petrus , Richard M. Nichols, III , Brian C. Leuenhagen , William A. Berry , Qigui Wang , James T. Singer
CPC classification number: F02F1/16 , B22C9/10 , F02F2200/06
Abstract: An automobile vehicle engine includes multiple water jackets individually formed in a cast engine block proximate to successive ones of multiple cylinder bores. Multiple cast-in place transition regions are individually formed during a casting operation of the cast engine block at entrances to individual ones of the multiple water jackets. Individual ones of multiple sawcuts open into individual ones of the multiple cast-in place transition regions.
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公开(公告)号：US11618937B2
公开(公告)日：2023-04-04
申请号：US16657146
申请日：2019-10-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jianghuai Yang , Qigui Wang , Dale A. Gerard , James D. Cremonesi , Daniel J. Wilson
Abstract: A nodular iron alloy and automotive components, such as a crankshaft, are provided. The nodular iron alloy may include iron, about 2.2-3.2 wt % carbon, about 1.7-2.3 wt % silicon, about 0.2-0.6 wt % manganese, a maximum of 0.03 wt % phosphorus, a maximum of 0.02 wt % sulfur, about 0.2-0.6 wt % copper, about 0.1-0.4 wt % chromium, about 0.4-0.8 wt % nickel, about 0.15-0.45 wt % molybdenum, about 0.2-1.0 wt % cobalt, about 0.02-0.06 wt % magnesium, and a maximum of 0.002 wt % rare earth element(s). The nodular iron alloy may have a Young's modulus in the range of 175-195 GPa and an as-cast ultimate tensile strength in the range of 750-950 MPa. This alloy possesses favorable strength, stiffness and noise/vibration/harshness qualities, making it suitable in crankshaft applications. A method of forming the nodular iron alloy includes feeding a magnesium-based material into a molten iron alloy through a continuous system at a constant amount.
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