Patents by Inventor Jung Do Suh
Jung Do Suh 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: 8765326Abstract: The present invention features a fuel cell stack that preferably includes an electricity generating assembly having a plurality of unit cells that are suitably disposed one after another; a pair of end plates pressedly disposed respectively at upper and lower ends of the electricity generating assembly; and a joining device suitably engaging the end plates by a rope, where pressure is applied to the electricity generating assembly by means of tension of the rope, and the length and tension of the rope is suitably controlled.Type: GrantFiled: March 25, 2013Date of Patent: July 1, 2014Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea Advanced Institute of Science and TechnologyInventors: Haeng Jin Ko, Young Bum Kum, Young Woo Noh, Sae Hoon Kim, Sang Hyun Cho, Jung Do Suh, Kwi Seong Jeong, Junghan Yu, Byung Ki Ahn, Duck Whan Kim, Sung Keun Lee, Dai Gil Lee, Ha Na Yu
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Composite separator for polymer electrolyte membrane fuel cell and method for manufacturing the same
Patent number: 8748055Abstract: The present invention provides a composite separator for a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same. The inventive method involves allowing graphite foil layers to be brought into direct contact with each other when graphite foils are stacked on both sides of a carbon fiber reinforced composite material prepreg, thereby improving electrical conductivity in the thickness direction of the separator.Type: GrantFiled: November 19, 2010Date of Patent: June 10, 2014Assignees: Hyundai Motor Company, Korea Advanced Institute of Science and TechnologyInventors: Dai Gil Lee, Ha Na Yu, Byoung Chul Kim, Bu Gi Kim, Jun Woo Lim, Jung Do Suh -
Patent number: 8673516Abstract: The present invention provides a surface pressure controlling device for a fuel cell stack, in which an inflator capable of being expanded by pneumatic or hydraulic pressure is mounted in an end plate so as to control the surface pressure required for the assembly of the fuel cell stack to be maintained above a predetermined level.Type: GrantFiled: June 25, 2010Date of Patent: March 18, 2014Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sae Hoon Kim, Duck Whan Kim, Jung Do Suh, Haeng Jin Ko
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Patent number: 8404397Abstract: The present invention features a fuel cell stack that preferably includes an electricity generating assembly having a plurality of unit cells that are suitably disposed one after another; a pair of end plates pressedly disposed respectively at upper and lower ends of the electricity generating assembly; and a joining device suitably engaging the end plates by a rope, where pressure is applied to the electricity generating assembly by means of tension of the rope, and the length and tension of the rope is suitably controlled.Type: GrantFiled: July 14, 2010Date of Patent: March 26, 2013Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea Advanced Institute of Science and TechnologyInventors: Haeng Jin Ko, Young Bum Kum, Young Woo Noh, Sae Hoon Kim, Sang Hyun Cho, Jung Do Suh, Kwi Seong Jeong, Junghan Yu, Byung Ki Ahn, Duck Whan Kim, Sung Keun Lee, Dai Gil Lee, Ha Na Yu
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Publication number: 20130065157Abstract: The present disclosure provides an end plate for a fuel cell including a sandwich insert, in which a metal insert has a sandwich insert structure including a plurality of stacked plates, thereby securing strength and achieving a lightweight structure. The sandwich insert is manufactured by staking two or more plates, each having a specific shape, followed by injection molding the sandwich insert with a plastic injection molded body, thereby securing strength and also achieving a lightweight structure, contrary to a conventional integral metal insert.Type: ApplicationFiled: December 6, 2011Publication date: March 14, 2013Applicants: HYUNDAI MOTOR COMPANY, DAEWON KANG UP CO., LTD., KIA MOTORS CORPORATIONInventors: Jung Do Suh, Sae Hoon Kim, Byung Ki Ahn, Jin Yong Park, Ji Yong Kim
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Publication number: 20130059227Abstract: Disclosed is an end plate for a fuel cell including an anti-bending plate, in which an anti-bending plate is assembled with an insert having a sandwich structure and the insert is injection molded, thereby easily preventing the insert from being bent due to an injection molding pressure. In the disclosed end plate, a sandwich insert including two or more stacked plates each having a specific shape is manufactured, and an anti-bending plate is coupled to the sandwich insert and then is injection molded, thereby easily preventing the sandwich insert from being bent due to a resin pressure in the injection molding process, contrary to a conventional integral metal insert.Type: ApplicationFiled: December 6, 2011Publication date: March 7, 2013Applicants: HYUNDAI MOTOR COMPANY, DAEWON KANG UP CO., LTD., KIA MOTORS CORPORATIONInventors: Jung Do Suh, Sae Hoon Kim, Byung Ki Ahn, Jin Yong Park, Ji Yong Kim
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Publication number: 20120135327Abstract: A technique is described herein for monitoring the operational state of a fuel cell stack by the detection of nonlinearity in such a manner that an external test signal for frequency response is generated and applied to the fuel cell stack during operation, the resulting signal output from the fuel cell stack is measured, and the harmonic content of the measured signal is analyzed, the method including: applying a multiple frequency test signal comprising at least two sinusoidal waves as the test signal for frequency response to the fuel cell stack; and analyzing the resulting current or voltage signal output from the fuel cell stack.Type: ApplicationFiled: May 17, 2011Publication date: May 31, 2012Applicants: Kangnam University Industry-Academia Cooperation Foundation, HYUNDAI MOTOR COMPANYInventors: Kwi Seong Jeong, Seung Chan Oh, Young Bum Kum, Sae Hoon Kim, Jung Do Suh, Duck Whan Kim, Young Hyun Lee, Seung Ryeol Yoo, Myung Ju Jung, Jong Guen Yoon
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COMPOSITE SEPARATOR FOR POLYMER ELECTROLYTE MEMBRANE FUEL CELL AND METHOD FOR MANUFACTURING THE SAME
Publication number: 20120077107Abstract: The present invention provides a composite separator for a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same. The inventive method involves allowing graphite foil layers to be brought into direct contact with each other when graphite foils are stacked on both sides of a carbon fiber reinforced composite material prepreg, thereby improving electrical conductivity in the thickness direction of the separator.Type: ApplicationFiled: November 19, 2010Publication date: March 29, 2012Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, HYUNDAI MOTOR COMPANYInventors: Dai Gil Lee, Ha Na Yu, Byoung Chul Kim, Bu Gi Kim, Jun Woo Lim, Jung Do Suh -
Publication number: 20110281203Abstract: The present invention provides a method for manufacturing a composite separator for a fuel cell, which can reduce the electrical contact resistance by performing an additional post-treatment to remove residual resin remaining on the surface of the composite separator by plasma etching. In certain preferred embodiments, the present invention provides a method for manufacturing a composite separator for a fuel cell, in which a liquid phase resin for gasket is applied to the surface of the composite separator along a predetermined gasket pattern, or a semi-cured resin for gasket in the form of a film with a predetermined gasket pattern is stacked on the surface of the composite separator, and then plasma etching is performed to remove the residual resin and, at the same time, cure the resin for gasket, thus reducing the overall processing time to improve the productivity and preventing a composite material of the separator from being damaged.Type: ApplicationFiled: September 7, 2010Publication date: November 17, 2011Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, HYUNDAI MOTOR COMPANYInventors: Dai Gil Lee, Ha Na Yu, Byoung Chul Kim, Bu Gi Kim, Jun Woo Lim, Jung Do Suh, Byung Ki Ahn, Sae Hoon Kim
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COMPOSITE SEPARATOR FOR POLYMER ELECTROLYTE MEMBRANE FUEL CELL AND METHOD FOR MANUFACTURING THE SAME
Publication number: 20110129737Abstract: The present invention provides a composite separator for a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same, in which a graphite foil prepared by compressing expanded graphite is stacked on a carbon fiber-reinforced composite prepreg or a mixed solution prepared by mixing graphite flake and powder with a resin solvent is applied to the cured composite prepreg such that a graphite layer is integrally molded on the outermost end of the separator.Type: ApplicationFiled: June 25, 2010Publication date: June 2, 2011Applicants: HYUNDAI MOTOR COMPANY, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Dai Gil Lee, Ha Na Yu, Jun Woo Lim, Sae Hoon Kim, Jung Do Suh, Byung Ki Ahn -
Publication number: 20110123882Abstract: The present invention provides a surface pressure controlling device for a fuel cell stack, in which an inflator capable of being expanded by pneumatic or hydraulic pressure is mounted in an end plate so as to control the surface pressure required for the assembly of the fuel cell stack to be maintained above a predetermined level.Type: ApplicationFiled: June 25, 2010Publication date: May 26, 2011Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Sae Hoon Kim, Duck Whan Kim, Jung Do Suh, Haeng Jin Ko
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Publication number: 20110086292Abstract: The present invention features a fuel cell stack that preferably includes an electricity generating assembly having a plurality of unit cells that are suitably disposed one after another; a pair of end plates pressedly disposed respectively at upper and lower ends of the electricity generating assembly; and a joining device suitably engaging the end plates by a rope, where pressure is applied to the electricity generating assembly by means of tension of the rope, and the length and tension of the rope is suitably controlled.Type: ApplicationFiled: July 14, 2010Publication date: April 14, 2011Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Haeng Jin Ko, Young Bum Kum, Young Woo Noh, Sae Hoon Kim, Sang Hyun Cho, Jung Do Suh, Kwi Seong Jeong, Junghan Yu, Byung Ki Ahn, Duck Whan Kim, Sung Keun Lee, Dai Gil Lee, Ha Na Yu
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Patent number: 7867656Abstract: The present invention provides a fuel cell separator formed of a continuous carbon-fiber composite, and a method for manufacturing the same.Type: GrantFiled: August 19, 2008Date of Patent: January 11, 2011Assignees: Hyundai Motor Company, Korea Advanced Institute of Science and TechnologyInventors: Sae Hoon Kim, Sung Ho Lee, Jung Do Suh, Byung Ki Ahn, Tae Won Lim, Dai Gil Lee, Seong Su Kim, Ha Na Yu, In Uk Hwang
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Patent number: 7776489Abstract: A clamping device includes an oblique device and a unidirectional load control plate disposed on the outside of the fuel cell stack, not on the inside of the fuel cell stack. The device can automatically compensating the surface pressure in the fuel cell stack to be maintained constant, and provide a large clamping load with a small force using the load of the fuel cell stack.Type: GrantFiled: August 14, 2008Date of Patent: August 17, 2010Assignees: Hyundai Motor Company, Pohang University of Science and TechnologyInventors: Young Bum Kum, Sae Hoon Kim, Yoo Chang Yang, Sung Ho Lee, Jung Do Suh, Chul Ho Yim, Ji Hoon Jeon, Woon Bong Hwang, Sang Min Lee, Chang Woo Lee, Seong Jin Cho
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Publication number: 20090311566Abstract: The present invention provides a separating plate for a fuel cell stack and method of manufacturing the same, and more particularly, to a separating plate for a fuel cell stack and method of manufacturing the same, in which the separating plate constituting the fuel cell stack is formed in such a fashion as to interpose an array of metal pipes between two sheets of composite material, and a gasket abutting against the separating plate is formed in such a fashion as to define hydrogen and air flow channels, thereby removing a contact resistance between two adjoining separating plates constituting unit cells to improve the efficiency of the fuel cell.Type: ApplicationFiled: February 27, 2009Publication date: December 17, 2009Applicants: Hyundai Motor Company, Korea Advanced Institute of Science and TechnologyInventors: Sae Hoon Kim, Yoo Chang Yang, Sung Ho Lee, Jung Do Suh, Byung Ki Ahn, Tae Won Lim, Dai Gil Lee, Seong Su Kim, Ha Na Yu, In Uk Hwang, Byoung Chul Kim, Kwan Ho Lee, Soon Ho Yoon
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Publication number: 20090286134Abstract: The present invention provides an end plate for fuel cell stack and a method for manufacturing an end plate, which can increase flexural rigidity per weight, and improve strain at break, and reduce heat transmission by applying hybrid core element having honeycomb and form structures to an end plate having sandwich structure combined to both end portions of a fuel cell stack.Type: ApplicationFiled: November 24, 2008Publication date: November 19, 2009Applicants: HYUNDAI MOTOR COMPANY, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Sae Hoon Kim, Sung Ho Lee, Jung Do Suh, Byung Ki Ahn, Tae Won Lim, Dai Gil Lee, Seong Su Kim, Ha Na Yu, In Uk Hwang
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Publication number: 20090269671Abstract: The present invention provides a fuel cell separator formed of a continuous carbon-fiber composite, and a method for manufacturing the same.Type: ApplicationFiled: August 19, 2008Publication date: October 29, 2009Applicants: Hyundai Motor Company, Korea Advanced Institute of Science and TechnologyInventors: Sae Hoon Kim, Sung Ho Lee, Jung Do Suh, Byung Ki Ahn, Tae Won Lim, Dai Gil Lee, Seong Su Kim, Ha Na Yu, In Uk Hwang
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Publication number: 20090226793Abstract: A fuel cell stack assembly includes a wire for assembling a fuel cell stack, which can maintain a constant surface pressure on the fuel cell by utilizing a wide elasticity range of the wire and ensure a high fastening force even with a small amount of material, thus making the fuel cell lightweight and maximizing the package efficiency. For this purpose, the present invention provides a fuel cell stack assembly including: at least one wire for fastening end plates mounted on both end portions of a fuel cell stack; at least one tensioner mounted on at least one portion of the top surface of an upper end plate; at least one tension guide each of which includes a central guide for guiding up and down movement of the tensioner and surrounds the tensioner; at least one upper guide mounted on both sides of the top surface of the upper end plate for guiding the wire; and at least one lower guide mounted on both sides of the bottom surface of a lower end plate for guiding the wire.Type: ApplicationFiled: July 11, 2008Publication date: September 10, 2009Applicants: Hyundai Motor Company, Korea Advanced Institute of Science and TechnologyInventors: Jung Do Suh, Dai Gil Lee
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Publication number: 20090226794Abstract: A clamping device includes an oblique device and a unidirectional load control plate disposed on the outside of the fuel cell stack, not on the inside of the fuel cell stack. The device can automatically compensating the surface pressure in the fuel cell stack to be maintained constant, and provide a large clamping load with a small force using the load of the fuel cell stack.Type: ApplicationFiled: August 14, 2008Publication date: September 10, 2009Applicants: Hyundai Motor Company, Pohang University of Science and TechnologyInventors: Young Bum Kum, Sae Hoon Kim, Yoo Chang Yang, Sung Ho Lee, Jung Do Suh, Chul Ho Yim, Ji Hoon Jeon, Woon Bong Hwang, Sang Min Lee, Chang Woo Lee, Seong Jin Cho
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Publication number: 20090117416Abstract: The present invention provides an end plate for a fuel cell stack and a method of manufacturing the same, in which the end plate connected to each of both ends of a fuel cell stack is manufactured in a hybrid structure using two kinds of materials having different coefficients of thermal expansion, thus providing a uniform surface pressure in the fuel cell stack.Type: ApplicationFiled: December 31, 2007Publication date: May 7, 2009Applicant: Hyundai Motor CompanyInventor: Jung Do Suh