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公开(公告)号：US20150060003A1
公开(公告)日：2015-03-05
申请号：US14011070
申请日：2013-08-27
Applicant: GM Global Technology Operations LLC
Inventor： Dale Edward Murrish , Keith Hart , Maurice G. Meyer
Abstract: A method of simultaneously manufacturing a plurality of crankshafts includes positioning a core system having a plurality of individual cores within a cavity of a mold having first and second halves forming an exterior shape of the crankshafts. The crankshafts' exterior shape includes a plurality of pin bearing journals and a plurality of main bearing journals. Each of the cores passes through each of the crankshafts. At least one core passes through at least one of the pin bearing journals and at least one other core passes through at least one of the main bearing journals. The method also includes introducing into the cavity molten metal to form the crankshafts. As the metal flows into the cavity and around the plurality of cores, a hollow section extending through at least one of the pin bearing journals and at least one of the main bearing journals of each crankshaft is formed.
Abstract translation: 同时制造多个曲轴的方法包括将具有多个单独芯的芯体定位在具有形成曲轴的外部形状的第一和第二半部的模具的空腔内。 曲轴的外形包括多个销轴承轴颈和多个主轴承轴颈。 每个芯通过每个曲轴。 至少一个芯通过至少一个销轴承轴颈，并且至少一个其它芯穿过至少一个主轴承轴颈。 该方法还包括将腔熔融金属引入以形成曲轴。 当金属流入空腔并围绕多个芯时，形成延伸穿过每个曲轴的至少一个销轴承轴颈和至少一个主轴承轴颈的中空部分。
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公开(公告)号：US20180320259A1
公开(公告)日：2018-11-08
申请号：US15584554
申请日：2017-05-02
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Jianghuai Yang , Maurice G. Meyer , William L. Miller , Dale A. Gerard
Abstract: A multiple step method increases net tensile strengths of high pressure die cast (HPDC) aluminum components through an alloy- and process-dependent thermal treatment. The highest temperature feasible for solution treatment of an HPDC casting is determined by computational thermodynamics, kinetics and the gas laws based on the alloy composition and gas pressure in the finally solidified parts. Determining the maximum solution temperature involves mapping pressure in the bubbles of solidified material to avoid the formation of blisters by surface adjacent bubbles in the casting. To reduce residual tensile stress, the HPDC parts are air cooled after the solution treatment. Finally, a specific, multiple temperature aging cycle is utilized to improve the aging response of air cooled HPDC parts and increase net tensile strength.
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公开(公告)号：US09403209B2
公开(公告)日：2016-08-02
申请号：US13746558
申请日：2013-01-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Christopher D. Cogan , James T. Singer , Stephen M. Fitch , Maurice G. Meyer , David D. Goettsch
Abstract: Methods, systems, and apparatus for reduction of gas pressure within a core, such as a sand casting core package, during a casting process in order to reduce bubble defects. Some embodiments may comprise a mold configured to receive a molten metal to create a metal casting, such as an engine block casting. The mold may comprise a mold core configured to create a cavity within the metal casting. The system may further comprise a filling device configured for delivering a molten metal into the mold for creating the metal casting. The mold core may comprise a material that is permeable to certain gases known to often result in bubble defects. The system may further comprise a vacuum configured to be coupled with the mold to reduce gas pressure within a permeable portion of the mold in order to reduce the incidence of bubble defects within the casting.
Abstract translation: 为了减少气泡缺陷，在铸造过程期间降低芯体内的气体压力的方法，系统和装置，例如砂铸芯包装。 一些实施例可以包括被配置为接收熔融金属以形成金属铸件（例如发动机缸体铸件）的模具。 模具可以包括配置成在金属铸件内形成空腔的模芯。 该系统还可以包括填充装置，其被配置为将熔融金属输送到模具中以形成金属铸件。 模芯可以包括对已知通常导致气泡缺陷的某些气体是可渗透的材料。 该系统还可以包括被配置为与模具联接以减小模具的可渗透部分内的气体压力的真空，以便减少铸件内的气泡缺陷的发生。
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公开(公告)号：US11549549B2
公开(公告)日：2023-01-10
申请号：US17304120
申请日：2021-06-15
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Dale E. Murrish , Scott A. Hucker , Maurice G. Meyer
Abstract: Presented are crankshaft assemblies with internal stiffening structures, methods for making/using such crankshaft assemblies, and internal combustion engines equipped with such crankshaft assemblies. A crankshaft body, which is formed with a first material, includes multiple bearing journals that are mutually coaxial to rotate on a crankshaft axis and spaced from each other along the length of the crankshaft. Each bearing journal has an internal journal cavity. Multiple crankpins are longitudinally spaced from each and axially offset from the crankshaft's rotational axis. Each crankpin has an internal crankpin cavity. Multiple crank webs project radially from the crankshaft axis and interconnect the bearing journals with the crankpins. Each crank web has an internal web cavity. Disposed within the journal cavities, crankpin cavities, and/or web cavities is a stiffening bar formed with a second material having a modulus of elasticity that is greater than the modulus of elasticity of the first material.
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Patent Agency Ranking
公开(公告)号：US09186720B2
公开(公告)日：2015-11-17
申请号：US14011070
申请日：2013-08-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Dale Edward Murrish , Keith Hart , Maurice G. Meyer
Abstract: A method of simultaneously manufacturing a plurality of crankshafts includes positioning a core system having a plurality of individual cores within a cavity of a mold having first and second halves forming an exterior shape of the crankshafts. The crankshafts' exterior shape includes a plurality of pin bearing journals and a plurality of main bearing journals. Each of the cores passes through each of the crankshafts. At least one core passes through at least one of the pin bearing journals and at least one other core passes through at least one of the main bearing journals. The method also includes introducing into the cavity molten metal to form the crankshafts. As the metal flows into the cavity and around the plurality of cores, a hollow section extending through at least one of the pin bearing journals and at least one of the main bearing journals of each crankshaft is formed.
Abstract translation: 同时制造多个曲轴的方法包括将具有多个单独芯的芯体定位在具有形成曲轴的外部形状的第一和第二半部的模具的空腔内。 曲轴的外形包括多个销轴承轴颈和多个主轴承轴颈。 每个芯通过每个曲轴。 至少一个芯通过至少一个销轴承轴颈，并且至少一个其它芯穿过至少一个主轴承轴颈。 该方法还包括将腔熔融金属引入以形成曲轴。 当金属流入空腔并围绕多个芯时，形成延伸穿过每个曲轴的至少一个销轴承轴颈和至少一个主轴承轴颈的中空部分。
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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.
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公开(公告)号：US20180080107A1
公开(公告)日：2018-03-22
申请号：US15267673
申请日：2016-09-16
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Maurice G. Meyer , Qigui Wang , Jianghuai Yang
CPC classification number: C22F1/04 , C21D1/30 , C21D1/42 , C21D1/613 , F02F1/004 , F02F1/18 , F02F7/0085 , F02F2200/06 , H05B6/06 , H05B6/101 , Y02P10/253
Abstract: A method for relieving residual stress in cast-in-place liners of high pressure die cast (HPDC) engine blocks to prevent cracking in the liners during the machining process. The method includes locally heating up the liners and the surrounding engine block material through rapid induction heating and then cooling down the liners and surrounding engine block material with still ambient air to a predetermined temperature after the residual stress has been reduced to a desired threshold.
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公开(公告)号：US20180016666A1
公开(公告)日：2018-01-18
申请号：US15212905
申请日：2016-07-18
Applicant: GM Global Technology Operations LLC
Inventor： Christopher D. Cogan , Qigui Wang , Maurice G. Meyer
IPC: C22F1/04 , F02F7/00 , F02F1/24 , B22C9/10 , B22C9/08 , B22D15/02 , B22C9/24 , B22D21/00 , B22D29/00
Abstract: A method of manufacturing an aluminum alloy cylinder head includes providing a mold assembly including a gating system, a head deck mold, and a mold cavity. Liquid aluminum alloy is pumped at low pressure into the gating system of the mold assembly filling the mold cavity. Next, the head deck mold is removed from the mold assembly and the head deck and combustion chambers of the cylinder head are quenched.
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公开(公告)号：US20140367064A1
公开(公告)日：2014-12-18
申请号：US13916763
申请日：2013-06-13
Applicant: GM Global Technology Operations LLC
Inventor： Dale Edward Murrish , Keith Hart , Maurice G. Meyer
CPC classification number: B22D25/02 , B22C9/108 , B22C9/22 , F16C3/08 , F16C2220/02
Abstract: A method of simultaneously manufacturing a plurality of crankshafts includes positioning a single core within a cavity of a mold having a first half and a second half together forming an exterior shape of the plurality of crankshafts. The exterior shape of each of the plurality of crankshafts produced thereby includes a plurality of pin bearing journals and a plurality of main bearing journals. The method also includes introducing via a mechanism into the cavity a molten metal to form the plurality of crankshafts. As the molten metal flows into the cavity and around the single core, a hollow section extending through at least one of the plurality of pin bearing journals and at least one of the plurality of main bearing journals of each of the plurality of crankshafts is formed. A system for simultaneously manufacturing a plurality of reduced mass crankshafts using the above method is also disclosed.
Abstract translation: 同时制造多个曲轴的方法包括将单个芯体定位在具有第一半和第二半部的模具的空腔内，形成多个曲轴的外部形状。 由此制造的多个曲轴的外形形状包括多个销轴承轴颈和多个主轴承轴颈。 该方法还包括通过机构将熔融金属引入腔中以形成多个曲轴。 当熔融金属流入空腔并围绕单个芯时，形成延伸穿过多个销轴承轴颈中的至少一个并且多个曲轴中的每一个的多个主轴承轴颈中的至少一个的中空部分。 还公开了一种使用上述方法同时制造多个减小曲轴的系统。
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