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公开(公告)号：US20220241851A1
公开(公告)日：2022-08-04
申请号：US17163926
申请日：2021-02-01
Applicant: GM Global Technology Operations LLC
Inventor： Ronald J. Petrus , Qigui Wang , Richard M. Nichols, III , Brian C. Leuenhagen
Abstract: A system for making a hybrid cam bore sand core with metal chills for an engine block includes an engine block cast of an aluminum material. A camshaft bore extends through the engine block. A cam bore sand core with at least one metal chill is positioned within the camshaft bore. A body portion of the at least one metal chill is positioned in direct contact with a cam bearing surface of at least one cam bearing member during casting of the engine block to increase a cooling rate of the at least one cam bearing member and create a crystalline material depth of the cam bearing member having enhanced mechanical properties.
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公开(公告)号：US20220203468A1
公开(公告)日：2022-06-30
申请号：US17134986
申请日：2020-12-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Lokesh Choudhary , Qigui Wang , Tiruttani Munikamal , David A. Wulbrecht , Gregory Melekian , Anil K. Sachdev
IPC: B23G1/18
Abstract: A method of manufacturing a threaded hole in a workpiece includes providing the workpiece having a region with a hole. The method also includes cutting a threading for the hole. Furthermore, the method includes, independent of cutting the threading, densifying the region proximate the hole to reduce material porosity in the region.
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公开(公告)号：US11313015B2
公开(公告)日：2022-04-26
申请号：US15938186
申请日：2018-03-28
Inventor： Qigui Wang , Wenying Yang , Bing Ye
Abstract: Aluminum alloys having improved properties are provided. The alloy includes about 13 to about 17 weight percent silicon, about 0.3 to about 0.6 weight percent magnesium, and at least 75 weight percent aluminum. The alloy may include copper up to about 2.0 weight percent; iron up to about 0.8 weight percent; manganese up to about 1.0 weight percent; nickel up to about 1.0 weight percent; zinc up to about 0.8 weight percent; titanium up to about 0.5 weight percent; zirconium up to about 0.5 weight percent; vanadium up to about 0.5 weight percent; and other trace elements up to about 0.1 weight percent. In addition, the alloy may contain about 50 to about 1000 ppm of strontium and about 10 about 100 ppm phosphorus. Also disclosed is a die cast article, such as transmission clutch housing.
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公开(公告)号：US20220099114A1
公开(公告)日：2022-03-31
申请号：US17038501
申请日：2020-09-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jeffrey Harris , Andrew T. Cunningham , Zachary P. Steffes , Thomas Curtis , Qigui Wang , David C. Caples
IPC: F15D1/04
Abstract: A flow conditioning device includes a body portion having first and second ends and an interior surface defining a channel extending from the first end to the second end, and one or more flow conditioning elements disposed within the channel. Each of the one or more flow conditioning elements is integrally formed with the interior surface of the body portion, and may be a respective flow straightening tube, a flow straightening vane, a hole array plate, a turning vane, a swirling vane, a helical ridge formed along a respective longitudinal segment of the interior surface, or another configuration. The body portion and the one or more flow conditioning elements may be formed by an additive manufacturing process, and may optionally be made of the same material.
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公开(公告)号：US20220097130A1
公开(公告)日：2022-03-31
申请号：US17032518
申请日：2020-09-25
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Wenying Yang , John M. Kremer , Daniel J. Wilson , Dale A. Gerard , Thomas W. Gustafson
IPC: B22D41/62
Abstract: A ladle, process, and system for casting an aluminum-based alloy includes a casting ladle. The casting ladle includes a cup and the cup defines an opening. The ladle also includes an ultrasonic transducer including an end immersed in the cup, wherein the cup exhibits a first depth and the ultrasonic transducer is immersed in the cup at a second depth in a range of 5 percent to 100 percent of the first depth. An aluminum-based alloy melt is introduced into an opening of a casting ladle, an ultrasonic transducer immersed in the aluminum-based alloy melt is activated, and the aluminum-based alloy melt is transferred onto a casting surface.
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Patent Agency Ranking
公开(公告)号：US20220074325A1
公开(公告)日：2022-03-10
申请号：US17014526
申请日：2020-09-08
Applicant: GM Global Technology Operations LLC
Inventor： Devin R. Hess , Qigui Wang , Thomas W. Gustafson , Dale A. Gerard
Abstract: A cylinder head having a cast-in-place valve seat for an automobile vehicle includes a valve seat having an inner wall. At least one retaining feature integrally and homogeneously extends from the inner wall. The valve seat when positioned into a casting mold has the at least one retaining feature assisting in retaining the valve seat in the casting mold. A metal in a molten form is received in the casting mold. A cast component formed after cooling of the metal has the valve seat cast-in-place.
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公开(公告)号：US11098672B2
公开(公告)日：2021-08-24
申请号：US16539269
申请日：2019-08-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jianghuai Yang , Qigui Wang , Dale A. Gerard
Abstract: A method of forming an engine component includes providing a cylinder liner main body having a curved interior wall forming a cylinder bore extending along a bore axis and a curved exterior wall formed circumferentially about the curved interior wall. The method includes disposing a coating layer onto the interior wall and the exterior wall. A cylinder liner is provided that includes a main body and a coating layer disposed on an exterior wall and on an interior wall of the main body.
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公开(公告)号：US20210087645A1
公开(公告)日：2021-03-25
申请号：US17114961
申请日：2020-12-08
Applicant: GM Global Technology Operations LLC
Inventor： Jianghuai Yang , James D. Cremonesi , Paul J. Gelazin , Qigui Wang , Daniel J. Wilson
Abstract: A method for manufacturing a crankshaft for an internal combustion engine with a plurality of journals having a hardened case with a first microstructure. The crankshaft is comprised of a steel comprising between about 0.3 wt % and 0.77 wt % Carbon. The first microstructure of the hardened case of the journals comprises between about 15% and 30% ferrite and a balance of martensite and the resultant subsurface residual stress between 310 MPa and 620 MPa.
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169.发明申请公开(公告)号：US20210037665A1
公开(公告)日：2021-02-04
申请号：US16528848
申请日：2019-08-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Qigui Wang , Song He , Seongchan Pack , Angela P. Willis
Abstract: A damping cover for an integrated power electronics module (IPEM), the damping cover generally defined by a top side and a bottom side, wherein the bottom side is configured to mate adjacent with or contiguous to a power inverter module (PIM) of the IPEM. The damping cover can include an aluminum foam core including a top surface generally corresponding to the top side of the damping cover and a bottom surface generally corresponding to the bottom side of the damping cover and a polymeric over-molding or non-porous aluminum outer layer covering the top surface and/or a polymeric over-molding or non-porous aluminum outer layer covering the bottom surface. The bottom side of the damping cover can mate adjacent with or contiguous to the PIM. The polymeric material over-molding can completely impregnate the aluminum foam core. The aluminum foam core can have a density of about 0.15 g/cm3 to about 1.0 g/cm3.
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公开(公告)号：US20200316676A1
公开(公告)日：2020-10-08
申请号：US16376667
申请日：2019-04-05
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Christopher D. Cogan , Michael J. Walker , Garrold DeGrace , Thomas Gustafson , Dale Gerard
Abstract: A method of manufacturing an aluminum alloy cylinder head includes providing a precision sand core and mold assembly, a liquid aluminum alloy delivery system, and a mold manipulator system. The precision sand core and mold assembly is disposed in the mold manipulator system and the liquid aluminum alloy delivery system includes an in-furnace ultrasonic actuator and a launder tube having at least an ultrasonic actuator. The liquid aluminum alloy delivery system is sealed to the precision sand core and mold assembly and provides liquid aluminum alloy into a gating system of the precision sand core and mold assembly. The precision sand core and mold assembly is rotated approximately 180°. The precision sand core and mold assembly is vibrated.
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