Patents by Inventor Harold Huimin Sun
Harold Huimin Sun 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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Publication number: 20140060009Abstract: A vehicle system operation method is provided. The method comprises, during a first operating condition, increasing back pressure in a first exhaust conduit positioned upstream of a turbine and downstream of a first emission control device and during a second operating condition, reducing back pressure in the first exhaust conduit and flowing boosted air from downstream of a compressor into a second exhaust conduit positioned upstream of a second emission control device and downstream of the turbine.Type: ApplicationFiled: April 22, 2013Publication date: March 6, 2014Applicant: Ford Global Technologies, LLCInventors: Xiaogang Zhang, Jianwen James Yi, Wen Dai, Paul M. Laing, John Hedges, Julia Helen Buckland, Harold Huimin Sun
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Patent number: 8631648Abstract: A system for treating exhaust gases from an engine is described. The system includes, the exhaust gases routed from the engine to atmosphere through an exhaust passage, the system comprising: an injector directing a spray of reductant into the exhaust gases routed from the engine to atmosphere; an exhaust separation passage that separates an exhaust gas flow received from the engine into a plurality of separate exhaust gas flows; a plurality of oxidation catalysts, each of which receives one of the plurality of separate exhaust gas flows; a flow combining passage that receives the plurality of separate exhaust gas flows and combines them into a re-combined exhaust gas flow; a turbocharger that receives the re-combined exhaust gas flow from the flow combining passage; and a selective catalytic reduction catalyst positioned downstream of the turbocharger.Type: GrantFiled: June 24, 2011Date of Patent: January 21, 2014Assignee: Ford Global Technologies, LLCInventors: Christine Kay Lambert, Yinyan Huang, Harold Huimin Sun, Christopher Oberski
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Patent number: 8516815Abstract: A method for responding to an existing or incipient surge condition of a turbocharger coupled to an engine of a motor vehicle is provided. The method comprises receiving a signal responsive to an operating condition of the turbocharger and adjusting one or more operating parameters of the motor vehicle when a power of the signal, integrated over a pre-selected range of non-zero frequencies, exceeds a pre-selected threshold. Other embodiments provide related systems for responding to an existing or incipient surge condition of a turbocharger.Type: GrantFiled: September 14, 2012Date of Patent: August 27, 2013Assignee: Ford Global Technologies, LLCInventors: Yong Shu, Michiel J. Van Nieuwstadt, Brien Lloyd Fulton, Frank M. Korpics, Harold Huimin Sun
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Patent number: 8517664Abstract: In one example, a turbocharger for an internal combustion engine is described. The turbocharger comprises a casing containing an impeller having a full blade coupled to a hub that rotates about an axis of rotation. The casing includes a bleed port and an injection port. The full blade includes a hub edge, a casing edge, and a first distribution of angles, each angle measured between the axis of rotation and a mean line at the hub edge at a meridional distance along the hub edge. The full blade includes a second distribution of angles, each angle measured between the axis of rotation and a mean line at the casing edge at a meridional distance along the casing edge. Further, various systems are described for affecting the aerodynamic properties of the compressor and turbine components in a way that may extend the operating range of the turbocharger.Type: GrantFiled: January 19, 2010Date of Patent: August 27, 2013Assignee: Ford Global Technologies, LLCInventors: Harold Huimin Sun, Dave Hanna, Jizhong Zhang, Liangjun Hu, Eric M. Krivitzky, Louis M. Larosiliere, Nicholas C. Baines
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Publication number: 20130042608Abstract: Various systems and methods are described for a variable geometry turbine. In one example, a turbine nozzle comprises a central axis and a nozzle vane. The nozzle vane includes a stationary vane and a sliding vane. The sliding vane is positioned to slide in a direction substantially tangent to an inner circumference of the turbine nozzle and in contact with the stationary vane.Type: ApplicationFiled: August 16, 2011Publication date: February 21, 2013Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Harold Huimin Sun, Jizhong Zhang, Liangjun Hu, Dave R. Hanna
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Publication number: 20130013168Abstract: A method for responding to an existing or incipient surge condition of a turbocharger coupled to an engine of a motor vehicle is provided. The method comprises receiving a signal responsive to an operating condition of the turbocharger and adjusting one or more operating parameters of the motor vehicle when a power of the signal, integrated over a pre-selected range of non-zero frequencies, exceeds a pre-selected threshold. Other embodiments provide related systems for responding to an existing or incipient surge condition of a turbocharger.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Yong Shu, Michiel J. Van Nieuwstadt, Brien Lloyd Fulton, Frank M. Korpics, Harold Huimin Sun
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Publication number: 20130004292Abstract: A method for operation of an engine including a turbocharger system is provided. The method includes adjusting turbocharger rotational acceleration or deceleration in response to one or more resonant frequencies. Additionally in some examples, the method may further include increasing turbocharger rotation in response to one or more resonant frequencies during a first condition, and increasing turbocharger deceleration in response to one or more resonant frequencies during a second condition, the second condition different from the first condition. In this way, it is possible to enhance the useful life cycle of the turbocharger and associated engine by limiting the operating time in a resonant frequency band.Type: ApplicationFiled: September 12, 2012Publication date: January 3, 2013Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Harold Huimin Sun, Yong Shu, Dave Hanna, Tim Schram
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Patent number: 8312718Abstract: A method for operating a turbocharged engine includes adjusting turbocharger rotational acceleration or deceleration in response to one or more resonant frequencies. Additionally in some examples, the method may further include increasing turbocharger rotation in response to one or more resonant frequencies during a first condition, and increasing turbocharger deceleration in response to one or more resonant frequencies during a second condition, the second condition different from the first condition. In this way, it is possible to enhance the useful life cycle of the turbocharger and associated engine by limiting the operating time in a resonant frequency band.Type: GrantFiled: July 29, 2009Date of Patent: November 20, 2012Assignee: Ford Global Technologies, LLCInventors: Harold Huimin Sun, Yong Shu, Dave Hanna, Tim Schram
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Patent number: 8272215Abstract: A method for responding to an existing or incipient surge condition of a turbocharger coupled to an engine of a motor vehicle is provided. The method comprises receiving a signal responsive to an operating condition of the turbocharger and adjusting one or more operating parameters of the motor vehicle when a power of the signal, integrated over a pre-selected range of non-zero frequencies, exceeds a pre-selected threshold. Other embodiments provide related systems for responding to an existing or incipient surge condition of a turbocharger.Type: GrantFiled: February 12, 2009Date of Patent: September 25, 2012Assignee: Ford Global Technologies, LLCInventors: Yong Shu, Michiel J. Van Nieuwstadt, Brien Lloyd Fulton, Frank M. Korpics, Harold Huimin Sun
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Publication number: 20120198843Abstract: A turbocharged internal combustion engine having an engine control unit and apparatus coupled to the turbocharger, to assist in acceleration of the turbocharger in response to an acceleration signal from the engine control system and to decelerate the turbocharger in response a deceleration signal from the engine control unit. The apparatus absorbs energy from the turbocharger in response to the deceleration signal from the engine control unit to decelerate the turbocharger. The apparatus includes one or more hydraulic wheels on the same shaft of, and between, the turbine and compressor of the turbocharger, the one or more hydraulic wheels being driven in response to the acceleration signal to assist in acceleration of the turbocharger or absorb energy from the turbocharger shaft in response the deceleration signal.Type: ApplicationFiled: February 3, 2011Publication date: August 9, 2012Inventors: Harold Huimin Sun, David R. Hanna, Michael Levin, Eric Warren Curtis, F. Zafar Shaikh
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Publication number: 20110247327Abstract: A system for treating exhaust gases from an engine is described. The system includes, the exhaust gases routed from the engine to atmosphere through an exhaust passage, the system comprising: an injector directing a spray of reductant into the exhaust gases routed from the engine to atmosphere; an exhaust separation passage that separates an exhaust gas flow received from the engine into a plurality of separate exhaust gas flows; a plurality of oxidation catalysts, each of which receives one of the plurality of separate exhaust gas flows; a flow combining passage that receives the plurality of separate exhaust gas flows and combines them into a re-combined exhaust gas flow; a turbocharger that receives the re-combined exhaust gas flow from the flow combining passage; and a selective catalytic reduction catalyst positioned downstream of the turbocharger.Type: ApplicationFiled: June 24, 2011Publication date: October 13, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Christine Kay Lambert, Yinyan Huang, Harold Huimin Sun, Christopher Oberski
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Patent number: 8001778Abstract: A method of operating an engine having a turbocharger and a high pressure EGR system is provided. A recirculation valve of the turbocharger's compressor is adjusted along with the throttle at different airflow conditions.Type: GrantFiled: September 25, 2007Date of Patent: August 23, 2011Assignee: Ford Global Technologies, LLCInventor: Harold Huimin Sun
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Publication number: 20110173975Abstract: In one example, a turbocharger for an internal combustion engine is described. The turbocharger comprises a casing containing an impeller having a full blade coupled to a hub that rotates about an axis of rotation. The casing includes a bleed port and an injection port. The full blade includes a hub edge, a casing edge, and a first distribution of angles, each angle measured between the axis of rotation and a mean line at the hub edge at a meridional distance along the hub edge. The full blade includes a second distribution of angles, each angle measured between the axis of rotation and a mean line at the casing edge at a meridional distance along the casing edge. Further, various systems are described for affecting the aerodynamic properties of the compressor and turbine components in a way that may extend the operating range of the turbocharger.Type: ApplicationFiled: January 19, 2010Publication date: July 21, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Harold Huimin Sun, Dave Hanna, Jizhong Zhang, Liangjun Hu, Eric M. Krivitzky, Louis M. Larosiliere, Nicholas C. Baines
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Patent number: 7971430Abstract: A system for treating exhaust gases from an engine is described. The system includes, the exhaust gases routed from the engine to atmosphere through an exhaust passage, the system comprising: an injector directing a spray of reductant into the exhaust gases routed from the engine to atmosphere; an exhaust separation passage that separates an exhaust gas flow received from the engine into a plurality of separate exhaust gas flows; a plurality of oxidation catalysts, each of which receives one of the plurality of separate exhaust gas flows; a flow combining passage that receives the plurality of separate exhaust gas flows and combines them into a re-combined exhaust gas flow; a turbocharger that receives the re-combined exhaust gas flow from the flow combining passage; and a selective catalytic reduction catalyst positioned downstream of the turbocharger.Type: GrantFiled: April 4, 2008Date of Patent: July 5, 2011Assignee: Ford Global Technologies, LLCInventors: Christine Kay Lambert, Yinyan Huang, Harold Huimin Sun, Christopher Oberski
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Publication number: 20110023479Abstract: A method for operation of an engine including a turbocharger system is provided. The method includes adjusting turbocharger rotational acceleration or deceleration in response to one or more resonant frequencies. Additionally in some examples, the method may further include increasing turbocharger rotation in response to one or more resonant frequencies during a first condition, and increasing turbocharger deceleration in response to one or more resonant frequencies during a second condition, the second condition different from the first condition. In this way, it is possible to enhance the useful life cycle of the turbocharger and associated engine by limiting the operating time in a resonant frequency band.Type: ApplicationFiled: July 29, 2009Publication date: February 3, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Harold Huimin Sun, Yong Shu, Dave Hanna, Tim Schram
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Publication number: 20090293477Abstract: A method for responding to an existing or incipient surge condition of a turbocharger coupled to an engine of a motor vehicle is provided. The method comprises receiving a signal responsive to an operating condition of the turbocharger and adjusting one or more operating parameters of the motor vehicle when a power of the signal, integrated over a pre-selected range of non-zero frequencies, exceeds a pre-selected threshold. Other embodiments provide related systems for responding to an existing or incipient surge condition of a turbocharger.Type: ApplicationFiled: February 12, 2009Publication date: December 3, 2009Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Yong Shu, Michiel J. Van Nieuwstadt, Brien Lloyd Fulton, Frank M. Korpics, Harold Huimin Sun
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Publication number: 20090249773Abstract: A system for treating exhaust gases from an engine is described. The system includes, the exhaust gases routed from the engine to atmosphere through an exhaust passage, the system comprising: an injector directing a spray of reductant into the exhaust gases routed from the engine to atmosphere; an exhaust separation passage that separates an exhaust gas flow received from the engine into a plurality of separate exhaust gas flows; a plurality of oxidation catalysts, each of which receives one of the plurality of separate exhaust gas flows; a flow combining passage that receives the plurality of separate exhaust gas flows and combines them into a re-combined exhaust gas flow; a turbocharger that receives the re-combined exhaust gas flow from the flow combining passage; and a selective catalytic reduction catalyst positioned downstream of the turbocharger.Type: ApplicationFiled: April 4, 2008Publication date: October 8, 2009Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Christine Kay Lambert, Yinyan Huang, Harold Huimin Sun, Christopher Oberski
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Publication number: 20090077968Abstract: A method of operating an engine having a turbocharger and a high pressure EGR system is provided. In one example, a compressor of the turbocharger may have a recirculation passage with a recirculation valve coupled therein. The method may include during a first engine airflow condition: delivering at least some high pressure un-cooled EGR to the intake, downstream of the compressor, operating the throttle at a first throttle amount, and operating the compressor bypass valve at a first bypass amount to increase exhaust gas temperature; and during a second engine airflow condition higher than the first engine airflow: delivering at least some high pressure cooled EGR to the intake, downstream of the compressor, operating the throttle at a second throttle amount more open than the first amount, and operating the compressor bypass valve at a second bypass amount more closed than the first amount.Type: ApplicationFiled: September 25, 2007Publication date: March 26, 2009Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventor: Harold Huimin Sun