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).
-
Patent number: 11143207Abstract: Methods and systems are provided for a turbocharger system to reduce and balance axial thrust load on the turbine shaft and the associated bearing system and sealing. In one example, a partial back plate compressor may be used in combination with an axial turbine to reduce axial thrust load and to improve turbocharger transient response time. In another example, a regenerative turbocharger system with back-to-back turbo pump may be used to reduce and balance axial thrust load.Type: GrantFiled: July 16, 2019Date of Patent: October 12, 2021Assignee: Ford Global Technologies, LLCInventors: Harold Huimin Sun, Leon Hu, Dave R. Hanna, Jianwen James Yi, Eric Warren Curtis
-
Patent number: 10519799Abstract: Various systems and methods are described for a variable geometry turbine. In one example, a nozzle vane includes a stationary having a first cambered sliding surface and a sliding vane having a second cambered sliding surface where the second cambered sliding surface includes a flow disrupting feature in contact with the first sliding cambered surface. The sliding vane may be positioned to slide in a direction from substantially tangent along a curved path to an inner circumference of the turbine nozzle and selectively uncover the flow disrupting feature.Type: GrantFiled: December 1, 2017Date of Patent: December 31, 2019Assignee: Ford Global Technologies, LLCInventors: Harold Huimin Sun, Ben Zhao, Leon Hu, Jianwen James Yi, Eric Warren Curtis, Jizhong Zhang
-
Publication number: 20190338787Abstract: Methods and systems are provided for a turbocharger system to reduce and balance axial thrust load on the turbine shaft and the associated bearing system and sealing. In one example, a partial back plate compressor may be used in combination with an axial turbine to reduce axial thrust load and to improve turbocharger transient response time. In another example, a regenerative turbocharger system with back-to-back turbo pump may be used to reduce and balance axial thrust load.Type: ApplicationFiled: July 16, 2019Publication date: November 7, 2019Inventors: Harold Huimin Sun, Leon Hu, Dave R. Hanna, Jianwen James Yi, Eric Warren Curtis
-
Patent number: 10428727Abstract: A system for increasing temperature in an exhaust aftertreatment system upstream of an exhaust aftertreatment device, such as a selective catalyst reduction (SCR) device, is provided. In one form, the system includes a component within an exhaust stream being exposed to exhaust flow and temperatures of at least 200° C. At least one surface of the component includes an adhered ceramic coating that functions as a catalyst to accelerate heating of the exhaust flow. In another form, a secondary catalyst is adhered to the ceramic coating. The component may be a part or parts of a turbocharger, such as nozzles, vanes, runners, and blades.Type: GrantFiled: April 14, 2017Date of Patent: October 1, 2019Assignee: Ford Motor CompanyInventors: Deren Wang, Harold Huimin Sun, Xin Liu, Douglas Allen Dobson
-
Patent number: 10415599Abstract: Methods and systems are provided for a turbocharger system to reduce and balance axial thrust load on the turbine shaft and the associated bearing system and sealing. In one example, a partial back plate compressor may be used in combination with an axial turbine to reduce axial thrust load and to improve turbocharger transient response time. In another example, a regenerative turbocharger system with back-to-back turbo pump may be used to reduce and balance axial thrust load.Type: GrantFiled: October 30, 2015Date of Patent: September 17, 2019Assignee: Ford Global Technologies, LLCInventors: Harold Huimin Sun, Leon Hu, Dave R. Hanna, Jianwen James Yi, Eric Warren Curtis
-
Patent number: 10107296Abstract: Systems and methods are provided for a turbocharger compressor, where the system may comprise: an actuatable annular disk comprising choke slots therein; an outer annular disk comprising choke slots therein; and an actuator to rotate the actuatable annular disk relative to the outer annular disk to vary alignment of the choke slots of the actuatable annular disk and the outer annular disk. The actuator may be controlled by an engine controller responsive to operating conditions of the compressor and actuated to align choke slots. Alignment of the choke slots allows air to be drawn into the impeller effectively expanding the compressor flow capacity to prevent compressor choke.Type: GrantFiled: June 25, 2013Date of Patent: October 23, 2018Assignee: Ford Global Technologies, LLCInventors: Harold Huimin Sun, Dave R. Hanna, Thomas Polley, Liangjun Hu, Daniel William Kantrow
-
Publication number: 20180298804Abstract: A system for increasing temperature in an exhaust aftertreatment system upstream of an exhaust aftertreatment device, such as a selective catalyst reduction (SCR) device, is provided. In one form, the system includes a component within an exhaust stream being exposed to exhaust flow and temperatures of at least 200° C. At least one surface of the component includes an adhered ceramic coating that functions as a catalyst to accelerate heating of the exhaust flow. In another form, a secondary catalyst is adhered to the ceramic coating. The component may be a part or parts of a turbocharger, such as nozzles, vanes, runners, and blades.Type: ApplicationFiled: April 14, 2017Publication date: October 18, 2018Applicant: Ford Motor CompanyInventors: Deren Wang, Harold Huimin Sun, Xin Liu, Douglas Allen Dobson
-
Patent number: 9945258Abstract: Systems are provided for a reinforcement element coupled to a sheet metal turbine housing that imparts desirable thermal-protective and structurally strengthening characteristics to the housing layers. In one example, a system may include a turbine comprising a housing surrounding a turbine rotor, the housing having an outer layer surrounding an inner layer at a distance to form an intermediate space between the inner and outer layers. Moreover, disposed in the intermediate space is a reinforcement element coupled to the inner and outer layers, providing strength and consistent rigidity without a significant increase in weight to the housing.Type: GrantFiled: October 10, 2014Date of Patent: April 17, 2018Assignee: Ford Global Technologies, LLCInventors: Harold Huimin Sun, Leon Hu, David R Hanna
-
Publication number: 20180087453Abstract: Various systems and methods are described for a variable geometry turbine. In one example, a nozzle vane includes a stationary having a first cambered sliding surface and a sliding vane having a second cambered sliding surface where the second cambered sliding surface includes a flow disrupting feature in contact with the first sliding cambered surface. The sliding vane may be positioned to slide in a direction from substantially tangent along a curved path to an inner circumference of the turbine nozzle and selectively uncover the flow disrupting feature.Type: ApplicationFiled: December 1, 2017Publication date: March 29, 2018Inventors: Harold Huimin Sun, Ben Zhao, Leon Hu, Jianwen James Yi, Eric Warren Curtis, Jizhong Zhang
-
Patent number: 9890700Abstract: Various systems and methods are described for a variable geometry turbine. In one example, a nozzle vane includes a stationary having a first cambered sliding surface and a sliding vane having a second cambered sliding surface where the second cambered sliding surface includes a flow disrupting feature in contact with the first sliding cambered surface. The sliding vane may be positioned to slide in a direction from substantially tangent along a curved path to an inner circumference of the turbine nozzle and selectively uncover the flow disrupting feature.Type: GrantFiled: May 11, 2015Date of Patent: February 13, 2018Assignee: Ford Global Technologies, LLCInventors: Harold Huimin Sun, Ben Zhao, Leon Hu, Jianwen James Yi, Eric Warren Curtis, Jizhong Zhang
-
Publication number: 20170122339Abstract: Methods and systems are provided for a turbocharger system to reduce and balance axial thrust load on the turbine shaft and the associated bearing system and sealing. In one example, a partial back plate compressor may be used in combination with an axial turbine to reduce axial thrust load and to improve turbocharger transient response time. In another example, a regenerative turbocharger system with back-to-back turbo pump may be used to reduce and balance axial thrust load.Type: ApplicationFiled: October 30, 2015Publication date: May 4, 2017Inventors: Harold Huimin Sun, Leon Hu, Dave R. Hanna, Jianwen James Yi, Eric Warren Curtis
-
Publication number: 20160146100Abstract: Various systems and methods are described for a variable geometry turbine. In one example, a nozzle vane includes a stationary having a first cambered sliding surface and a sliding vane having a second cambered sliding surface where the second cambered sliding surface includes a flow disrupting feature in contact with the first sliding cambered surface. The sliding vane may be positioned to slide in a direction from substantially tangent along a curved path to an inner circumference of the turbine nozzle and selectively uncover the flow disrupting feature.Type: ApplicationFiled: May 11, 2015Publication date: May 26, 2016Inventors: Harold Huimin Sun, Ben Zhao, Leon Hu, Jianwen James Yi, Eric Warren Curtis, Jizhong Zhang
-
Publication number: 20160102579Abstract: Systems are provided for a reinforcement element coupled to a sheet metal turbine housing that imparts desirable thermal-protective and structurally strengthening characteristics to the housing layers. In one example, a system may include a turbine comprising a housing surrounding a turbine rotor, the housing having an outer layer surrounding an inner layer at a distance to form an intermediate space between the inner and outer layers. Moreover, disposed in the intermediate space is a reinforcement element coupled to the inner and outer layers, providing strength and consistent rigidity without a significant increase in weight to the housing.Type: ApplicationFiled: October 10, 2014Publication date: April 14, 2016Inventors: Harold Huimin Sun, Leon Hu, David R. Hanna
-
Patent number: 9267427Abstract: Embodiments may provide variable geometry turbine, a nozzle vane for a variable geometry turbine, and a method. The variable geometry turbine that may include a turbine wheel and a plurality of adjustable vanes radially positioned around the turbine wheel. The turbine may also include a flow disrupting feature on one or more outside surfaces of one or more of the plurality of adjustable vanes.Type: GrantFiled: June 11, 2013Date of Patent: February 23, 2016Assignee: Ford Global Technologies, LLCInventors: Harold Huimin Sun, Liangjun Hu, Ben Zhao, Dave R. Hanna
-
Patent number: 9243551Abstract: 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: GrantFiled: September 12, 2012Date of Patent: January 26, 2016Assignee: Ford Global Technologies, LLCInventors: Harold Huimin Sun, Yong Shu, Dave Hanna, Tim Schram
-
Patent number: 9151200Abstract: 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: GrantFiled: April 22, 2013Date of Patent: October 6, 2015Assignee: Ford Global Technologies, LLCInventors: Xiaogang Zhang, Jianwen James Yi, Wen Dai, Paul M. Laing, John Hedges, Julia Helen Buckland, Harold Huimin Sun
-
Patent number: 8919119Abstract: 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: GrantFiled: August 16, 2011Date of Patent: December 30, 2014Assignee: Ford Global Technologies, LLCInventors: Harold Huimin Sun, Jizhong Zhang, Liangjun Hu, Dave R. Hanna
-
Publication number: 20140377051Abstract: Systems and methods are disclosed for a turbocharger compressor, the system comprising: an actuatable annular disk comprising choke slots therein; an outer annular disk comprising choke slots therein; and an actuator to rotate the actuatable annular disk relative to the outer annular disk to vary alignment of the choke slots of the actuatable annular disk and the outer annular disk. The actuator may be controlled by an engine controller responsive to operating conditions of the compressor and actuated to align choke slots. Alignment of the choke slots allows air to be drawn into the impeller effectively expanding the compressor flow capacity to prevent compressor choke.Type: ApplicationFiled: June 25, 2013Publication date: December 25, 2014Inventors: Harold Huimin Sun, Dave R. Hanna, Thomas Polley, Liangjun Hu, Daniel William Kantrow
-
Patent number: 8915082Abstract: An engine is described having an engine control unit and two or more hydraulically operated wheels, wherein a fluid is flowed from an accumulator to the engine via the first wheel to assist in acceleration of the turbocharger in response to an acceleration signal from the engine control system and wherein the fluid is flowed from the engine to the accumulator via the second wheel to decelerate the turbocharger in response to a deceleration signal from the engine control unit. In one particular embodiment, the second wheel absorbs energy from the turbocharger in response to the deceleration signal from the engine control unit to decelerate the turbocharger. In some embodiments, the hydraulically operated wheels may be positioned on the same shaft of, and between, the turbine and compressor of the turbocharger.Type: GrantFiled: February 3, 2011Date of Patent: December 23, 2014Assignee: Ford Global Technologies, LLCInventors: Harold Huimin Sun, David R. Hanna, Michael Levin, Eric Warren Curtis, F. Zafar Shaikh
-
Publication number: 20140360160Abstract: Embodiments may provide variable geometry turbine, a nozzle vane for a variable geometry turbine, and a method. The variable geometry turbine that may include a turbine wheel and a plurality of adjustable vanes radially positioned around the turbine wheel. The turbine may also include a flow disrupting feature on one or more outside surfaces of one or more of the plurality of adjustable vanes.Type: ApplicationFiled: June 11, 2013Publication date: December 11, 2014Inventors: Harold Huimin Sun, Liangjun Hu, Ben Zhao, Dave R. Hanna