Patents by Inventor C Bing Rong
C Bing Rong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11024458Abstract: A method for printing a three-dimensional (3D) article is provided by the present disclosure. The method includes induction heating, by an induction head assembly, a magnetic material to form an alloy melt. The induction head assembly includes a nozzle and an induction heater that heats the magnetic material. The method further includes including the alloy melt from the nozzle onto a base, and tracing a predetermined pattern on the base with the alloy melt to form a three-dimensional article.Type: GrantFiled: October 11, 2017Date of Patent: June 1, 2021Assignee: Ford Global Technologies, LLCInventors: C. Bing Rong, Feng Liang, Leyi Zhu, Michael W. Degner
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Patent number: 10734848Abstract: Magnetic cores and method and fixtures for forming the same are disclosed. The magnetic core may comprise a magnetic body including magnetic grains and a magnetic flux path, the magnetic grains aligned in a plurality of distinct directional alignments to conform to the magnetic flux path. The grain orientation of the cores may be provided by fixtures including electrical circuits and/or permanent magnets. The fixtures may be configured to produce magnetic fields that approximate, mimic, or correspond to a magnetic flux path in the magnetic core, once it is consolidated and in use. The magnetic fields may orient the grains of the magnetic core when they are in an unconsolidated state, such that the grains are aligned in a plurality of directional alignments that approximate, mimic, or correspond to a magnetic flux path in the magnetic core.Type: GrantFiled: April 25, 2018Date of Patent: August 4, 2020Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Michael W. Degner, Feng Liang, C Bing Rong
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Patent number: 10629341Abstract: A composite permanent magnet comprises a first phase including a magnetically hard material and a second phase including a magnetic material. Each of the materials has an anisotropy value selected such that a ratio of the values falls within a predefined range and a resulting grain size of the magnetic material is greater than a predefined threshold defined by the predefined range.Type: GrantFiled: August 22, 2016Date of Patent: April 21, 2020Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventor: C Bing Rong
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Patent number: 10518624Abstract: A hybrid powertrain utilizes a motor with a permanent magnet rotor. The rotor is formed by inserting parallelepiped magnets into slots. To reduce the likelihood of demagnetization, the net magnetization of each magnet is oriented parallel to a sidewards surface of the magnet and not perpendicular to an outwards surface of the magnet. The magnets may be arranged in multiple rows. The magnets in each row may be perpendicular to a rotor radial or diagonal to a rotor diagonal.Type: GrantFiled: June 15, 2017Date of Patent: December 31, 2019Assignee: Ford Global Technologies, LLCInventors: Feng Liang, C Bing Rong, Michael W. Degner, Lusu Guo
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Patent number: 10290407Abstract: In at least one embodiment, a single sintered magnet is provided having a concentration profile of heavy rare-earth (HRE) elements within a continuously sintered rare-earth (RE) magnet bulk. The concentration profile may include at least one local maximum of HRE element concentration within the bulk such that a coercivity profile of the magnet has at least one local maximum within the bulk. The magnet may be formed by introducing alternating layers of an HRE containing material and a magnetic powder into a mold, pressing the layers into a green compact, and sintering the green compact to form a single, unitary magnet.Type: GrantFiled: September 7, 2017Date of Patent: May 14, 2019Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Feng Liang, C Bing Rong, Michael W. Degner
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Publication number: 20190131066Abstract: A grain boundary diffusion method for a rare-earth (RE) magnet is provided. The method includes coating particles of the RE magnet with a coating material. Each RE magnet particle includes a plurality of grains. The coated particles are then simultaneously heat treated and compacted. The heat treated, compacted, and coated particles are then formed into a rare earth magnet. In a form of the method, the heat treated, compacted, and coated particles are hot deformed prior to being formed into a rare earth magnet. Another form of the method achieves the grain boundary diffusion without first sintering the rare earth magnet.Type: ApplicationFiled: October 26, 2017Publication date: May 2, 2019Applicant: Ford Global Technologies, LLCInventors: C. Bing Rong, Feng Liang, Michael Degner, Wanfeng Li
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Publication number: 20190108941Abstract: A method for printing a three-dimensional (3D) article is provided by the present disclosure. The method includes induction heating, by an induction head assembly, a magnetic material to form an alloy melt. The induction head assembly includes a nozzle and an induction heater that heats the magnetic material. The method further includes including the alloy melt from the nozzle onto a base, and tracing a predetermined pattern on the base with the alloy melt to form a three-dimensional article.Type: ApplicationFiled: October 11, 2017Publication date: April 11, 2019Applicant: Ford Global Technologies, LLCInventors: C. Bing Rong, Feng Liang, Leyi Zhu, Michael W. Degner
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Patent number: 10199910Abstract: Methods for forming a motor core having separately processed stator and rotor laminations are disclosed. The stator and rotor laminations may be formed from a single electrical steel source, such as a sheet or coil. The methods may include forming and heat treating a first portion of the steel source to form stator laminations having a first microstructure (e.g., mean grain size) and magnetic and mechanical properties (e.g., core loss). They may further include forming and heat treating a second portion of the steel source to form rotor laminations having a second microstructure that is different from the first and magnetic and mechanical properties that are different from the stator laminations. The stator laminations may have improved core loss and permeability performance and the rotor laminations may have improved mechanical properties. By separating the processing, each core may have properties tailored to conditions that they will experience in operation.Type: GrantFiled: October 3, 2014Date of Patent: February 5, 2019Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Feng Liang, Leyi Zhu, C Bing Rong
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Publication number: 20180361842Abstract: A hybrid powertrain utilizes a motor with a permanent magnet rotor. The rotor is formed by inserting parallelepiped magnets into slots. To reduce the likelihood of demagnetization, the net magnetization of each magnet is oriented parallel to a sidewards surface of the magnet and not perpendicular to an outwards surface of the magnet. The magnets may be arranged in multiple rows. The magnets in each row may be perpendicular to a rotor radial or diagonal to a rotor diagonal.Type: ApplicationFiled: June 15, 2017Publication date: December 20, 2018Inventors: Feng Liang, C Bing Rong, Michael W. Degner, Lusu Guo
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Publication number: 20180241260Abstract: Magnetic cores and method and fixtures for forming the same are disclosed. The magnetic core may comprise a magnetic body including magnetic grains and a magnetic flux path, the magnetic grains aligned in a plurality of distinct directional alignments to conform to the magnetic flux path. The grain orientation of the cores may be provided by fixtures including electrical circuits and/or permanent magnets. The fixtures may be configured to produce magnetic fields that approximate, mimic, or correspond to a magnetic flux path in the magnetic core, once it is consolidated and in use. The magnetic fields may orient the grains of the magnetic core when they are in an unconsolidated state, such that the grains are aligned in a plurality of directional alignments that approximate, mimic, or correspond to a magnetic flux path in the magnetic core.Type: ApplicationFiled: April 25, 2018Publication date: August 23, 2018Inventors: MICHAEL W. DEGNER, FENG LIANG, C BING RONG
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Publication number: 20180053586Abstract: A composite permanent magnet comprises a first phase including a magnetically hard material and a second phase including a magnetic material. Each of the materials has an anisotropy value selected such that a ratio of the values falls within a predefined range and a resulting grain size of the magnetic material is greater than a predefined threshold defined by the predefined range.Type: ApplicationFiled: August 22, 2016Publication date: February 22, 2018Inventor: C Bing RONG
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Publication number: 20170372822Abstract: In at least one embodiment, a single sintered magnet is provided having a concentration profile of heavy rare-earth (HRE) elements within a continuously sintered rare-earth (RE) magnet bulk. The concentration profile may include at least one local maximum of HRE element concentration within the bulk such that a coercivity profile of the magnet has at least one local maximum within the bulk. The magnet may be formed by introducing alternating layers of an HRE containing material and a magnetic powder into a mold, pressing the layers into a green compact, and sintering the green compact to form a single, unitary magnet.Type: ApplicationFiled: September 7, 2017Publication date: December 28, 2017Inventors: Feng Liang, C Bing Rong, Michael W. Degner
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Patent number: 9818516Abstract: In at least one embodiment, a hybrid permanent magnet is disclosed. The magnet may include a plurality of anisotropic regions of a Nd—Fe—B alloy and a plurality of anisotropic regions of a MnBi alloy. The regions of Nd—Fe—B alloy and MnBi alloy may be substantially homogeneously mixed within the hybrid magnet. The regions of Nd—Fe—B and MnBi may have the same or a similar size. The magnet may be formed by homogeneously mixing anisotropic powders of MnBi and Nd—Fe—B, aligning the powder mixture in a magnetic field, and consolidating the powder mixture to form an anisotropic hybrid magnet. The hybrid magnet may have improved coercivity at elevated temperatures, while still maintaining high magnetization.Type: GrantFiled: September 25, 2014Date of Patent: November 14, 2017Assignee: Ford Global Technologies, LLCInventors: Wanfeng Li, C Bing Rong, Leyi Zhu, Feng Liang, Michael W. Degner, Jun Yang
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Patent number: 9786419Abstract: In at least one embodiment, a single sintered magnet is provided having a concentration profile of heavy rare-earth (HRE) elements within a continuously sintered rare-earth (RE) magnet bulk. The concentration profile may include at least one local maximum of HRE element concentration within the bulk such that a coercivity profile of the magnet has at least one local maximum within the bulk. The magnet may be formed by introducing alternating layers of an HRE containing material and a magnetic powder into a mold, pressing the layers into a green compact, and sintering the green compact to form a single, unitary magnet.Type: GrantFiled: October 9, 2013Date of Patent: October 10, 2017Assignee: Ford Global Technologies, LLCInventors: Feng Liang, C Bing Rong, Michael W. Degner
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Publication number: 20160133364Abstract: Magnetic cores and method and fixtures for forming the same are disclosed. The magnetic core may comprise a magnetic body including magnetic grains and a magnetic flux path, the magnetic grains aligned in a plurality of distinct directional alignments to conform to the magnetic flux path. The grain orientation of the cores may be provided by fixtures including electrical circuits and/or permanent magnets. The fixtures may be configured to produce magnetic fields that approximate, mimic, or correspond to a magnetic flux path in the magnetic core, once it is consolidated and in use. The magnetic fields may orient the grains of the magnetic core when they are in an unconsolidated state, such that the grains are aligned in a plurality of directional alignments that approximate, mimic, or correspond to a magnetic flux path in the magnetic core.Type: ApplicationFiled: November 7, 2014Publication date: May 12, 2016Inventors: Michael W. DEGNER, Feng LIANG, C Bing RONG
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Publication number: 20160099635Abstract: Methods for forming a motor core having separately processed stator and rotor laminations are disclosed. The stator and rotor laminations may be formed from a single electrical steel source, such as a sheet or coil. The methods may include forming and heat treating a first portion of the steel source to form stator laminations having a first microstructure (e.g., mean grain size) and magnetic and mechanical properties (e.g., core loss). They may further include forming and heat treating a second portion of the steel source to form rotor laminations having a second microstructure that is different from the first and magnetic and mechanical properties that are different from the stator laminations. The stator laminations may have improved core loss and permeability performance and the rotor laminations may have improved mechanical properties. By separating the processing, each core may have properties tailored to conditions that they will experience in operation.Type: ApplicationFiled: October 3, 2014Publication date: April 7, 2016Inventors: Feng LIANG, Leyi ZHU, C Bing RONG
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Publication number: 20160093425Abstract: In at least one embodiment, a hybrid permanent magnet is disclosed. The magnet may include a plurality of anisotropic regions of a Nd—Fe—B alloy and a plurality of anisotropic regions of a MnBi alloy. The regions of Nd—Fe—B alloy and MnBi alloy may be substantially homogeneously mixed within the hybrid magnet. The regions of Nd—Fe—B and MnBi may have the same or a similar size. The magnet may be formed by homogeneously mixing anisotropic powders of MnBi and Nd—Fe—B, aligning the powder mixture in a magnetic field, and consolidating the powder mixture to form an anisotropic hybrid magnet. The hybrid magnet may have improved coercivity at elevated temperatures, while still maintaining high magnetization.Type: ApplicationFiled: September 25, 2014Publication date: March 31, 2016Inventors: Wanfeng LI, C Bing RONG, Leyi ZHU, Feng LIANG, Michael W. DEGNER, Jun YANG
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Publication number: 20150099104Abstract: In at least one embodiment, a single sintered magnet is provided having a concentration profile of heavy rare-earth (HRE) elements within a continuously sintered rare-earth (RE) magnet bulk. The concentration profile may include at least one local maximum of HRE element concentration within the bulk such that a coercivity profile of the magnet has at least one local maximum within the bulk. The magnet may be formed by introducing alternating layers of an HRE containing material and a magnetic powder into a mold, pressing the layers into a green compact, and sintering the green compact to form a single, unitary magnet.Type: ApplicationFiled: October 9, 2013Publication date: April 9, 2015Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Feng Liang, C Bing Rong, Michael W. Degner