Patents by Inventor Yong Gyu Noh
Yong Gyu Noh 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: 8997771Abstract: An integrated pressure control actuator assembly of a hydrogen supply system includes: a start/stop solenoid valve, a bypass valve, and a pressure control actuator, which are integrally formed in a single body; a normal flow path formed on the body, through which hydrogen gas is transferred from the start/stop solenoid valve to the pressure control actuator; an auxiliary flow path formed on the body, through which hydrogen gas is transferred according to opening and closing of the bypass valve connected to the normal flow path; and a control means for controlling the opening and closing of the bypass valve by detecting a failure of the pressure control actuator. The assembly enables the fuel cell vehicle to be driven in a limp home mode in the event of an emergency by adjustment of the pressure of hydrogen.Type: GrantFiled: September 19, 2008Date of Patent: April 7, 2015Assignee: Hyundai Motor CompanyInventors: Hyun Joon Lee, Yong Gyu Noh
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Publication number: 20150079489Abstract: A fuel cell system with an ejector is provided. In particular, the system includes a stack, fuel injection nozzle and a water injection nozzle. In particular, the stack produces electricity via an electrochemical reaction using fuel and air. The fuel injection nozzle injects fuel into the stack and the water injection nozzle injects water into the fuel injection nozzle. In particular, water is supplied from the water injection nozzle into the fuel injection nozzle due to a vacuum within the fuel injection nozzle.Type: ApplicationFiled: September 15, 2014Publication date: March 19, 2015Inventors: Yong Gyu Noh, Sekwon Jung
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Publication number: 20140377673Abstract: A fuel cell including a stack in which a plurality of cells are stacked includes an air manifold and a hydrogen manifold on a first side and a second side of the stack, respectively, a jet array including a tubular body inserted in the air manifold or the hydrogen manifold and a plurality of orifices formed in the tubular body and arranged in a longitudinal direction of the tubular body, a pump or a valve for supplying air or hydrogen to the jet array; and a controller that operates the pump or the valve.Type: ApplicationFiled: October 28, 2013Publication date: December 25, 2014Applicant: Hyundai Motor CompanyInventors: Yong Gyu Noh, Dong Jo Oh, Bu Kil Kwon
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Publication number: 20140369861Abstract: A jet pump unit, including: a nozzle housing having a vacuum chamber formed therein and connected with a recirculation line; a jet nozzle in which a front end is placed in the vacuum chamber of the nozzle housing, a nozzle aperture injecting fluid to the outside is formed on the front end, a slanted surface is formed on an exterior with an outer diameter gradually decreasing toward the nozzle aperture, and a concave notch is concave toward a rear end of the nozzle aperture; and a mixture pipe in which the fluid injected from the nozzle aperture of the jet nozzle and recirculation fluid that is sucked into the vacuum chamber are mixed.Type: ApplicationFiled: December 30, 2013Publication date: December 18, 2014Applicant: HYUNDAI MOTOR COMPANYInventors: Yong Gyu Noh, Sekwon Jung
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Publication number: 20140370410Abstract: A fuel cell using a synthetic jet array has a structure in which a plurality of cells are superposed in series and share a manifold for inflow and outflow of air, hydrogen, and coolant. The fuel cell includes an air inflow manifold formed passing through the plurality of cells, a synthetic jet array made up of a plurality of jet generators that are disposed on the air inflow manifold at regular intervals and generate a synthetic jet toward a cathode, and a controller configured to selectively operate the jet generators of the synthetic jet array.Type: ApplicationFiled: October 4, 2013Publication date: December 18, 2014Applicant: HYUNDAI MOTOR COMPANYInventors: Yong Gyu NOH, Dong Jo OH
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Publication number: 20140287334Abstract: A fuel cell system includes an air manifold through which air is supplied or exhausted, a fuel gas manifold through which fuel gas is supplied or exhausted, a stack portion that generates electricity by using air and fuel that are supplied by the air manifold and the fuel gas manifold, and an injection array that is disposed along an inside of the air manifold or the fuel gas manifold to inject air or fuel gas.Type: ApplicationFiled: December 30, 2013Publication date: September 25, 2014Applicant: HYUNDAI MOTOR COMPANYInventors: Yong Gyu Noh, Dong Jo Oh, Bu Kil Kwon
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Publication number: 20140205920Abstract: The present invention relates to a fuel cell system for vehicles and a method for controlling the same which stably maintains an output of a fuel cell by precisely estimating a recirculated hydrogen amount to a stack. A fuel cell system according to the present invention may include: a stack comprising a plurality of unit cells for generating electrical energy by electrochemical reaction of a fuel and an oxidizing agent; a blower for recirculating a gas exhausted from the stack so as to supply the gas back to the stack; an ejector for recirculating the gas exhausted from the stack, receiving hydrogen so as to mix the hydrogen to the recirculated gas, and supplying the mixture to the stack; a sensor module for detecting a driving condition of the vehicle; and a control portion for controlling operations of the blower and the ejector by using the driving condition of the vehicle and performance maps of the blower and the ejector.Type: ApplicationFiled: March 25, 2014Publication date: July 24, 2014Applicant: Hyundai Motor CompanyInventors: Hyun Joon Lee, Yong Gyu Noh, Bu Kil Kwon
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Publication number: 20140193726Abstract: A method of humidifying and cooling a fuel cell system is provided. The method of humidifying and cooling a fuel cell system includes: exhausting, by a fuel supply unit, a hydrogen gas to a reservoir in which condensed water of an anode is stored. Additionally, a hydrogen gas and condensed water are pumped and the hydrogen gas and the condensed water are exhausted to the humidifier. Additionally, compressed air of an air compressor is delivered to the humidifier heat is exchanged with compressed air in the humidifier. The hydrogen gas and compressed air in which a heat is exchanged in a humidified state is delivered to an anode and a cathode, respectively.Type: ApplicationFiled: December 11, 2013Publication date: July 10, 2014Applicant: HYUNDAI MOTOR COMPANYInventors: Yong Gyu Noh, Hyuck Roul Kwon, Hyo Sub Shim
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Publication number: 20140166121Abstract: A hydrogen supply apparatus of the fuel cell system includes a hydrogen tank and a pressure discharge line. The hydrogen tank is configured to store high-pressure hydrogen. A hydrogen supply line connected with a stack is disposed in the hydrogen tank. A pressure control valve configured to control hydrogen pressure of an anode of the stack is disposed in the hydrogen supply line. The pressure discharge line has a pressure relief valve and is disposed at the anode of the stack and a path connected thereto. The pressure discharge line is connected to an air supply line of the stack.Type: ApplicationFiled: December 5, 2013Publication date: June 19, 2014Applicant: Hyundai Motor CompanyInventors: Sekwon JUNG, Hyeonseok BAN, Hyun Joon LEE, Bu Kil KWON, Yong Gyu NOH
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Publication number: 20140138060Abstract: A compressed air cooling apparatus of a fuel cell system is provided that includes i) a heat absorber installed at a first part of an air supplying system which supplies compressed air of a first compressed by an air compressor to a fuel cell stack, ii) a heat radiator installed at a second part of a stack cooling system which cools a coolant circulating to the fuel cell stack, iii) a heat pipe which connects the heat absorber and the heat radiator and is filled with the refrigerant therein, wherein the heat absorber is disposed at a lower position than the heat radiator for the refrigerant to flow from the heat radiator to the heat absorber.Type: ApplicationFiled: October 31, 2013Publication date: May 22, 2014Applicant: HYUNDAI MOTOR COMPANYInventors: Yong Gyu Noh, Minkyu Lee, Sekwon Jung
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Patent number: 8709669Abstract: The present invention relates to a fuel cell system for vehicles and a method for controlling the same which stably maintains an output of a fuel cell by precisely estimating a recirculated hydrogen amount to a stack. A fuel cell system according to the present invention may include: a stack comprising a plurality of unit cells for generating electrical energy by electrochemical reaction of a fuel and an oxidizing agent; a blower for recirculating a gas exhausted from the stack so as to supply the gas back to the stack; an ejector for recirculating the gas exhausted from the stack, receiving hydrogen so as to mix the hydrogen to the recirculated gas, and supplying the mixture to the stack; a sensor module for detecting a driving condition of the vehicle; and a control portion for controlling operations of the blower and the ejector by using the driving condition of the vehicle and performance maps of the blower and the ejector.Type: GrantFiled: December 6, 2010Date of Patent: April 29, 2014Assignee: Hyundai Motor CompanyInventors: Hyun Joon Lee, Yong Gyu Noh, Bu Kil Kwon
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Patent number: 8580444Abstract: The present invention provides a hydrogen discharge system for a fuel cell system, which can ensure safety of a fuel cell vehicle by optimizing the dilution of hydrogen discharged from a fuel cell during discharge and ensure silence of the vehicle by reducing noise generated during discharge. For this purpose, the present invention provides a hydrogen discharge system for a fuel cell system including a purge valve for purging hydrogen discharged from a fuel electrode of a fuel cell stack, the hydrogen discharge system including: an ejector mounted to a hydrogen purge line extending from the purge valve to introduce air from the outside; and a post-treatment system connected to an exhaust line of the ejector to remove hydrogen discharged therethrough.Type: GrantFiled: August 19, 2008Date of Patent: November 12, 2013Assignee: Hyundai Motor CompanyInventors: Hyun Joon Lee, Yong Gyu Noh, Bu Kil Kwon
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Publication number: 20130295482Abstract: Disclosed is a hydrogen supply system for a fuel cell, which has an integrated manifold block in which components for hydrogen supply are integrated and modulated. In particular, a hydrogen supply line, a hydrogen discharge line, and a hydrogen recirculation line are formed in a manifold block mounted on the outside of a plurality of stack modules of a fuel cell stack. Additionally, components of the hydrogen supply system including components for supplying and discharging hydrogen and components for recirculating hydrogen are integrally mounted in predetermined positions of the hydrogen supply line, the hydrogen discharge line, and the hydrogen recirculation line to modularize the manifold block and the components of the hydrogen supply system.Type: ApplicationFiled: October 16, 2012Publication date: November 7, 2013Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANYInventors: Duck Whan Kim, Sae Hoon Kim, Young Bum Kum, Yong Gyu Noh, Se Kwon Jung, Hyun Joon Lee
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Publication number: 20120315559Abstract: The present invention provides an apparatus for controlling hydrogen supply of a fuel cell system and a method for controlling the same. The apparatus includes a jet pump, a proportional control solenoid valve, and a controller. The jet pump is disposed at the side of an inlet of a fuel cell stack and performs supply and recirculation of hydrogen into the fuel cell stack. The proportional control solenoid valve is connected to a hydrogen supply line and fluidly communicates with a nozzle inlet of the jet pump to control the hydrogen supply to the jet pump. The controller controls an operation of the proportional control solenoid valve according to a power of the fuel cell system. Here, the controller controls the operation of the proportional control solenoid valve according to a pulse flow control method at a low power section in which a current power is lower than a predetermined reference power.Type: ApplicationFiled: November 8, 2011Publication date: December 13, 2012Applicant: HYUNDAI MOTOR COMPANYInventors: Yong Gyu Noh, Se Kwon Jung, Ho June Bae
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Patent number: 8323840Abstract: Disclosed is a hydrogen recirculation apparatus for a fuel cell vehicle. More specifically, the apparatus described herein includes a humidifier/heat exchanger humidifies and heat-exchanges dry hydrogen flowing through a low-pressure regulator and recirculated hydrogen flowing through a hydrogen recirculation blower. The humidifier/heat exchanger utilizes the condensed water flowing from a water separator as a source of humidity. The water heat-exchanged with hydrogen by the humidifier/heat exchanger is reused for cooling the hydrogen recirculation blower, and the water used in the hydrogen recirculation blower. The temperature increased by the operation of the hydrogen recirculation blower, is mixed with water flowing from the water separator before introduction into humidifier/heat exchanger.Type: GrantFiled: November 16, 2007Date of Patent: December 4, 2012Assignee: Hyundai Motor CompanyInventors: Hyun Joon Lee, Yong Gyu Noh
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Publication number: 20120028146Abstract: The present invention relates to a fuel cell system for vehicles and a method for controlling the same which stably maintains an output of a fuel cell by precisely estimating a recirculated hydrogen amount to a stack. A fuel cell system according to the present invention may include: a stack comprising a plurality of unit cells for generating electrical energy by electrochemical reaction of a fuel and an oxidizing agent; a blower for recirculating a gas exhausted from the stack so as to supply the gas back to the stack; an ejector for recirculating the gas exhausted from the stack, receiving hydrogen so as to mix the hydrogen to the recirculated gas, and supplying the mixture to the stack; a sensor module for detecting a driving condition of the vehicle; and a control portion for controlling operations of the blower and the ejector by using the driving condition of the vehicle and performance maps of the blower and the ejector.Type: ApplicationFiled: December 6, 2010Publication date: February 2, 2012Applicant: HYUNDAI MOTOR COMPANYInventors: Hyun Joon Lee, Yong Gyu Noh, Bu Kil Kwon
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Patent number: 7687171Abstract: Multi-stage in-line cartridge ejectors for a fuel cell system provided herein comprise: at least one ejector main body for supplying hydrogen, each ejector main body including a plurality of nozzles arranged in line with a predetermined gap, in which the diameters of the respective nozzles become larger from an inlet side of the ejector main body toward an outlet side thereof, and a plurality of sub-inlets formed on an outer surface of the ejector main body to be connected to the gap or gaps between the nozzles; and a housing accommodating the eject main body and including a main inlet for intake of recirculated hydrogen. The multi-stage in-line cartridge ejectors can improve the system performance by increasing the amount of recirculated hydrogen. Moreover, at least one check valve is provided at an intake position of the cartridge ejectors to effectively prevent reverse flow of recirculation hydrogen gas and at least one heater is provided around the cartridge ejectors to improve cold startability.Type: GrantFiled: May 29, 2008Date of Patent: March 30, 2010Assignee: Hyundai Motor CompanyInventors: Hyeon Seok Ban, Hae Weon Lee, Yong Gyu Noh, Yong Sun Park
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Publication number: 20090233133Abstract: The present invention provides a hydrogen discharge system for a fuel cell system, which can ensure safety of a fuel cell vehicle by optimizing the dilution of hydrogen discharged from a fuel cell during discharge and ensure silence of the vehicle by reducing noise generated during discharge. For this purpose, the present invention provides a hydrogen discharge system for a fuel cell system including a purge valve for purging hydrogen discharged from a fuel electrode of a fuel cell stack, the hydrogen discharge system including: an ejector mounted to a hydrogen purge line extending from the purge valve to introduce air from the outside; and a post-treatment system connected to an exhaust line of the ejector to remove hydrogen discharged therethrough.Type: ApplicationFiled: August 19, 2008Publication date: September 17, 2009Applicant: Hyundai Motor CompanyInventors: Hyun Joon Lee, Yong Gyu Noh, Bu Kil Kwon
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Publication number: 20090155668Abstract: Multi-stage in-line cartridge ejectors for a fuel cell system provided herein comprise: at least one ejector main body for supplying hydrogen, each ejector main body including a plurality of nozzles arranged in line with a predetermined gap, in which the diameters of the respective nozzles become larger from an inlet side of the ejector main body toward an outlet side thereof, and a plurality of sub-inlets formed on an outer surface of the ejector main body to be connected to the gap or gaps between the nozzles; and a housing accommodating the eject main body and including a main inlet for intake of recirculated hydrogen. The multi-stage in-line cartridge ejectors can improve the system performance by increasing the amount of recirculated hydrogen. Moreover, at least one check valve is provided at an intake position of the cartridge ejectors to effectively prevent reverse flow of recirculation hydrogen gas and at least one heater is provided around the cartridge ejectors to improve cold startability.Type: ApplicationFiled: May 29, 2008Publication date: June 18, 2009Applicant: Hyundai Motor CompanyInventors: Hyeon Seok Ban, Hyun Joon Lee, Yong Gyu Noh, Yong Sun Park
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Publication number: 20090032756Abstract: An integrated pressure control actuator assembly of a hydrogen supply system includes: a start/stop solenoid valve, a bypass valve, and a pressure control actuator, which are integrally formed in a single body; a normal flow path formed on the body, through which hydrogen gas is transferred from the start/stop solenoid valve to the pressure control actuator; an auxiliary flow path formed on the body, through which hydrogen gas is transferred according to opening and closing of the bypass valve connected to the normal flow path; and a control means for controlling the opening and closing of the bypass valve by detecting a failure of the pressure control actuator. The assembly enables the fuel cell vehicle to be driven in a limp home mode in the event of an emergency by adjustment of the pressure of hydrogen.Type: ApplicationFiled: September 19, 2008Publication date: February 5, 2009Applicant: Hyundai Motor CompanyInventors: Hyun Joon Lee, Yong Gyu Noh