Liquid Cooling Patents (Class 429/437)
  • Patent number: 11515547
    Abstract: Provided is a fuel cell separator precursor that is obtained by impregnating a porous sheet, which contains a conductive filler, with a resin composition that contains a thermoplastic resin and a conductive filler.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: November 29, 2022
    Assignee: NISSHINBO HOLDINGS INC.
    Inventors: Kosuke Yasuda, Takehiro Okei, Shoya Ashizaki
  • Patent number: 11508982
    Abstract: A fuel cell stack comprising stacked unit cells, each comprising a membrane electrode assembly comprising an electrolyte membrane and a pair of electrodes disposed on both surfaces thereof, two separators sandwiching the membrane electrode assembly, and a frame-shaped resin sheet disposed between the two separators and around the membrane electrode assembly to attach the separators, wherein the resin sheet comprises a first protrusion protruding in the planar direction of the resin sheet and occupying a part of a first region occupied by a reaction gas inlet manifold, and a second protrusion protruding in the planar direction of the resin sheet and occupying a part of a second region occupied by a reaction gas outlet manifold; and wherein the resin sheet comprises at least one water discharge hole at a predetermined position of at least one protrusion selected from the group consisting of the first protrusion and the second protrusion.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: November 22, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroki Okabe
  • Patent number: 11495808
    Abstract: Various designs and configurations of and methods of operating fuel cell units, fuel cell systems and combined heat and power systems are provided that permit efficient thermal management of such units and systems to improve their operation.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: November 8, 2022
    Assignee: WATT Fuel Cell Corp.
    Inventors: Caine Finnerty, Paul DeWald
  • Patent number: 11489170
    Abstract: A fuel cell separator includes a separator main body having a first surface and a second surface, and a first seal member disposed on the first surface. When a region on the first surface of the separator main body corresponding to an electrode member disposed on the second surface is defined as a power generation region, and a region on the first surface of the separator main body corresponding to an in-cell seal member is defined as a seal region, a displacement/vibration reducing member made of polymer is disposed at a part of the seal region. The displacement/vibration reducing member includes multiple protrusions and a coupling portion. When viewed in plan view, an axis line connecting the centers of the figures of the adjacent protrusions does not coincide with a center line passing through the widthwise center of the coupling portion. The coupling portion has a gate cut mark.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: November 1, 2022
    Assignees: Sumitomo Riko Company Limited, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideya Kadono, Shigeo Nakanishi, Shinobu Yamaguchi, Hitoshi Tamura, Shinichi Haga, Motohiro Mizuno, Kenji Sato, Takuya Kurihara, Tomohiro Mazaki
  • Patent number: 11387474
    Abstract: A cooling control system includes: a fuel cell stack formed with a cooling flow path in which hydrogen and oxygen are received and reacted, respectively, and coolant flows between separators; a coolant circulation line connected with the cooling flow path of the fuel cell stack, and having the coolant flowing therein; a cooling pump connected to the coolant circulation line to circulate the coolant to cool the fuel cell stack; a heat generation amount estimator for estimating the heat generation amount of the fuel cell stack; a coolant estimator for estimating an amount of the coolant to cool the fuel cell stack based on the heat generation amount of the fuel cell stack; and a driving controller for controlling the operation of the cooling pump based on the estimated amount of the coolant.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: July 12, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Hyun Jae Lee, Seong Cheol Jeong, Hyo Seop Kim
  • Patent number: 11349134
    Abstract: According to the present invention, electrolyte membrane electrode structures have a staggered arrangement wherein a part of an anode electrode faces a part of one of two adjacent cathode electrodes, with an electrolyte membrane being interposed therebetween, and another part of the anode electrode faces a part of the other cathode electrode, with an interconnect part being interposed therebetween, said interconnect part being formed in the electrolyte membrane. A fuel cell according to the present invention is additionally provided with a fuel gas supply layer that is provided with a fuel gas supply path in which a fuel gas to be supplied to the anode electrode flows. A wall part between fuel gas supply paths in the fuel gas supply layer is superposed on the interconnect part, with the anode electrode being interposed therebetween.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: May 31, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takehiro Mugishima, Hitoshi Nagasaki, Akio Fujimoto
  • Patent number: 11289721
    Abstract: The present invention relates to a gas diffusion layer including a porous carbonaceous film layer for a fuel cell, in which the average pore diameter of the porous carbonaceous film layer is 0.1 ?m to 100 ?m, a membrane-electrode assembly including the gas diffusion layer, and a fuel cell including the membrane-electrode assembly.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: March 29, 2022
    Assignee: GUARDNEC CO., LTD.
    Inventors: Ki Ho Park, Bu Gon Kim
  • Patent number: 11199432
    Abstract: In a urea injection system of a vehicle, to detect the shortage of the cooling water by using an electric water pump (EWP) to cool a dosing injector during the running of the vehicle engine, the apparatus for detecting shortage of the cooling water in the vehicle includes a urea injector that injects urea into an exhaust pipe of the vehicle, a pump that cools the urea injector, and a controller that applies a reference current to the pump, measures a time taken until a revolutions per minute (RPM) of the pump reaches a reference RPM, and detects the shortage of the cooling water in the pump by comparing the measured time and a reference time.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: December 14, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Sun Dong Kwun
  • Patent number: 11145877
    Abstract: A fuel cell includes: an electrolyte membrane; first and second catalyst layers respectively formed on first and second surface of the electrolyte membrane; and a separator disposed opposite to the electrolyte membrane with respect to the first catalyst layer.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: October 12, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Nobuaki Nonoyama, Norishige Konno, Masayuki Ito
  • Patent number: 11092393
    Abstract: This disclosure relates to heat transfer fluids for use in heat transfer systems. The heat transfer fluids comprise at least one non-aqueous dielectric heat transfer fluid. The non-aqueous dielectric heat transfer fluid has density (?), specific heat (cp), and dynamic viscosity (?) properties.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: August 17, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Gary Christensen, Kevin J. Kelly, Shuji Luo, Heinrich R. Braun, Tobias Klande, Behrouz Engheta, Jorg F. W. Weber, Andrew E. Taggi
  • Patent number: 11093167
    Abstract: According to one embodiment, a controller acquires temperature data periodically while receiving a first mode designating signal, writes the temperature data into a nonvolatile storage while or after the first mode designating signal, acquires temperature data after a lapse of a predetermined time from designation of the second mode, writes the temperature data into the nonvolatile storage while or after a lapse of a predetermined time since the designation of the second mode, acquires temperature data at a timing of changing from the second mode to the first mode, and write the acquired temperature data into the nonvolatile storage at or after the timing of changing from the second mode to the first mode.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: August 17, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventor: Hayato Masubuchi
  • Patent number: 11081743
    Abstract: Disclosed herein, is a battery module that comprises an encapsulant material exhibiting improved thermal transfer and heat dissipation characteristics. In one example embodiment, the battery module comprises a “stack” of cells, wherein at least some of the cells, and optionally each cell, is not separated by a metal plate or tab-shaped heat sink layer, and instead, the cells are substantially surrounded by an encapsulant material and stacked directly upon one another.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: August 3, 2021
    Assignee: A123 SYSTEMS LLC
    Inventors: Yang Chen, Jonathan Hostler, Dylan Propst
  • Patent number: 11069934
    Abstract: An air-metal battery utilizes a magnesium anode, a carbon cathode, and a conductive fluid including glycol and water. The anode and cathode are provided in a fuel card assembly that is replaceable as a unit.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: July 20, 2021
    Inventor: Dan Curfew
  • Patent number: 11069915
    Abstract: A spring member is used in a fuel cell stack. The spring member includes a planar portion and a spring portion. The planar portion is joined to a separator in a state of surface contact with the separator. The spring portion extends from the planar portion and generates an elastic force for pressing the separator toward a power generation cell by receiving force in a stacking direction of a cell unit and undergoing bending deformation.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: July 20, 2021
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Motoki Yaginuma, Akira Yasutake, Norihiro Tajima, Koichi Kawasaki
  • Patent number: 11050065
    Abstract: The present disclosure provides a separator for a fuel cell, including a central part with a rectangular shape, and a surrounding part disposed to surround the central part, wherein the surrounding part includes an outlet manifold positioned at a pair of edges of the central part, which are opposed each other, and an inlet manifold positioned along a side of the central part to be adjacent to another edge except for the pair of edges at which the outlet manifold is positioned, and the central part includes a plurality of guide patterns that are spaced apart from each other to guide fluids introduced through the inlet manifold toward the outlet manifold.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: June 29, 2021
    Assignees: Korea Institute of Science and Technology, Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Jong Ho Lee, Kyung Joong Yoon, Sang Hyeok Lee, Dong Hwan Kim, Jong Sup Hong, Yong Gyun Bae
  • Patent number: 11040629
    Abstract: A fuel cell vehicle according to the present disclosure includes, in a front room: a fuel cell stack fixed to an upper part of a stack frame; a high voltage element fixed to an upper part of the fuel cell stack; and an ion exchanger that is arranged in front of the fuel cell stack and the high voltage element. The stack frame is provided with an inclined part, and when the ion exchanger is displaced rearward at the time of a frontal crash of the fuel cell vehicle, a rear part in a lower end of the ion exchanger is slid along an inclined surface of the inclined part and the ion exchanger is displaced in a diagonally upward direction, whereby the cap part of the ion exchanger is positioned on the upper side in the vertical direction with respect to the high voltage element.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: June 22, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideaki Sakakibara
  • Patent number: 11018360
    Abstract: The fuel cell system includes a fuel cell, a hydrogen circulation pump, heating portion, and a controller. The hydrogen circulation pump is configured to circulate hydrogen to the fuel cell and includes a cylinder and a rotor accommodated in the cylinder. The heating portion is configured to heat the cylinder. The controller is configured to control an operation of the heating portion. The controller is configured to cause the heating portion to heat the cylinder in a case where a driving state of the hydrogen circulation pump is higher than or equal to a standard driving state.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: May 25, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Tomoyuki Kozuka
  • Patent number: 11018359
    Abstract: Various designs and configurations of and methods of operating fuel cell units, fuel cell systems and combined heat and power systems are provided that permit efficient thermal management of such units and systems to improve their operation.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: May 25, 2021
    Assignee: WATT Fuel Cell Corp.
    Inventors: Caine Finnerty, Paul DeWald
  • Patent number: 10998570
    Abstract: A fuel cell vehicle includes a fuel cell system and an exhaust gas pipe. The fuel cell system includes a fuel cell stack, an oxygen-containing gas supply line, an oxygen-containing gas discharge line, and an air pump. The air pump includes a compressor provided in an oxygen-containing gas supply line, and an expander provided in an oxygen-containing gas discharge line. An air cleaner is provided upstream of the compressor. An exhaust gas pipe is connected to an expander. The air compressor is closer to the air cleaner than the expander is.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: May 4, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Takuma Kanazawa
  • Patent number: 10964964
    Abstract: A method and a system for controlling hydrogen supply for a fuel cell are provided. The method includes calculating a target hydrogen supply pressure, which is a target pressure value of hydrogen supplied to a fuel cell stack based on a required output. A fuel supply valve (FSV) duty is then adjusted based on the calculated target hydrogen supply pressure and modes are determined based on the FSV duty or actual hydrogen supply pressure measurements of a sensor. A hydrogen supply pressure measurement is calculated according to each of the determined modes and the FSV duty is corrected based on the calculated target hydrogen supply pressure and the hydrogen supply pressure measurement.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: March 30, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Boung Ho Min, Kyung Won Suh, Kyu Il Lee
  • Patent number: 10930963
    Abstract: A fuel cell stack in which unit cells are stacked, wherein the unit cell includes: a membrane electrode assembly; an insulating member; a first separator; a second separator; and a gasket, a hole penetrates through the insulating member and the first and second separators, the gasket extends around the hole on the insulating member, a flow path portion is formed in at least one of the first and second separators, the first and second separators define a communicating portion, one of the first and second separators includes: first and second protruding portions; and a recessed portion, at least a part of the communicating portion is defined by the first and second protruding portions, the recessed portion, and the other of the first and second separators, and the first separator includes a support portion contacting and supporting the insulating member on a back side of the gasket.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: February 23, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Kajiwara, Haruyuki Aono
  • Patent number: 10930939
    Abstract: A manufacturing method for a fuel cell separator includes preparing a separator member in which an uncured thermosetting resin layer is provided on a surface of a core member, as a preparation step; and pressing the separator member while heating the separator member so that a gas flow passage is formed in the separator member while the uncured thermosetting resin layer is cured, as a hot-press step.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: February 23, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yasuhiro Nobata
  • Patent number: 10916792
    Abstract: A fuel cell stack includes a load receiver provided in a first separator, and a contact portion. The load receiver includes a protrusion protruding outward from an outer peripheral portion of the first separator. The protrusion includes a protrusion body positioned at the center in a width direction of the protrusion, and a pair of expansions expanded in the width direction from both ends of the protrusion body in the width direction. When the load receiver contacts the contact portion, only a top portion of the expansion contacts the contact portion.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: February 9, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Suguru Ohmori, Kosuke Takagi
  • Patent number: 10847831
    Abstract: An end plate of a fuel cell stack includes a metal plate body including a plurality of through holes and a resin cover that covers a wall surface defining each of the through holes. The cover includes a body, a flange projecting outward in a radial direction from an outer end of the body, an annular rim extending toward the inner side from an outer edge of the flange, and a coupling rib that couples an inner circumferential surface of the rim to an outer circumferential surface of the body. The plate body further includes an outer end surface including a recess. The recess is filled with the flange, the rim, and the coupling rib.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: November 24, 2020
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Kunihiro Yamaura
  • Patent number: 10847816
    Abstract: A fuel cell includes a power-generation channel provided on a surface of a cathode-side separator which faces a MEA and a cooling channel provided on a surface of the cathode-side separator opposite to the MEA. Air flows through the power-generation channel and the cooling channel. The cooling channel is separated from the power-generation channel by a side wall. The cross-sectional area of the power-generation channel on the air outlet side is smaller than that of the power-generation channel at a position upstream of the air outlet side, and the cross-sectional area of the cooling channel on the air outlet side is larger than that of the cooling channel at a position upstream of the air outlet side. A through-hole is provided in a side wall that separates the power-generation channel from the cooling channel.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: November 24, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki Takehiro, Makoto Adachi
  • Patent number: 10840534
    Abstract: The fuel cell FC includes a discharge manifold AMe for discharging anode offgas from inside the fuel cell to outside the fuel cell. In the discharge manifold AMe, discharge pipe 45 is placed, and a support mechanism 400 is provided, the support mechanism including one or plural supporting portions 41 for supporting the discharge pipe 45 as well as an engaging portion 43 for placing a distal end portion 45a of the discharge pipe 45 at a position apart from a closed end E2 of the discharge manifold AMe.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: November 17, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nobuaki Nonoyama, Masaya Kobayashi
  • Patent number: 10811702
    Abstract: The invention relates to a fuel cell (10) comprising a membrane electrode assembly (16) and two gas diffusion layers (14) co-operating with the assembly to form a unit cell (12). The fuel cell (10) also has a two-phase thermal diffuser (24) having a condensation zone and an evaporation zone, the evaporation zone being arranged between the bipolar plates (14) of two adjacent unit cells (12). The two-phase thermal diffuser (24) also has a heating element arranged in the condensation zone. The invention also provides a system comprising the fuel cell and a controller, and it also provides a method of regulating the temperature of the fuel cell.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: October 20, 2020
    Assignee: Safran Power Units
    Inventors: Antoine Verdier, Théophile Horde, Fabien Boudjemaa
  • Patent number: 10801117
    Abstract: Disclosed herein are ion exchange membranes, electrochemical systems, and methods that relate to various configurations of the ion exchange membranes and other components of the electrochemical cell.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: October 13, 2020
    Assignee: Calera Corporation
    Inventors: Ryan J Gilliam, Michael Kostowskyj, Thomas H McWaid, Samaresh Mohanta, Hong Zhao
  • Patent number: 10788034
    Abstract: A system for cooling a mobile phone and method for using the system are described. The system includes an active piezoelectric cooling system, a controller and an interface. The active piezoelectric cooling system is configured to be disposed in a rear portion of the mobile phone distal from a front screen of the mobile phone. The controller is configured to activate the active piezoelectric cooling system in response to heat generated by heat-generating structures of the mobile phone. The interface is configured to receive power from a mobile phone power source when the active piezoelectric cooling system is activated.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: September 29, 2020
    Assignee: Frore Systems Inc.
    Inventors: Suryaprakash Ganti, Seshagiri Rao Madhavapeddy
  • Patent number: 10720611
    Abstract: A non-electrical battery can include a backing plate; a plurality of strings disposed in parallel relation on the backing plate, each string comprising a first end and a second end, wherein the first end of each string is attached to the backing plate and each string extends away from the backing plate; and a charging mechanism attached to the second end of each string to apply a force to the strings to increase a potential energy stored by the strings.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 21, 2020
    Assignee: PHYSICAL OPTICS CORPORATION
    Inventors: Andrew Kostrzewski, Tomasz Jannson, Kang Lee, Richard Koziol, Kevin Walter
  • Patent number: 10712105
    Abstract: This disclosure relates to heat transfer fluids for use in heat transfer systems. The heat transfer fluids comprise at least one non-aqueous dielectric heat transfer fluid. The non-aqueous dielectric heat transfer fluid has density (?), specific heat (cp), and dynamic viscosity (?) properties.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: July 14, 2020
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Gary Christensen, Kevin J. Kelly, Shuji Luo, Heinrich R. Braun, Tobias Klande, Behrouz Engheta, Jorg F. W. Weber, Andrew E. Taggi
  • Patent number: 10711355
    Abstract: A spacer for an electrolyzer cell of substantially annular shape comprises: a peripheral part having two parallel principal faces opposite each other, the distance separating the two principal faces defining a thickness of the spacer, and an internal part having a thickness strictly less than the thickness of the spacer, the peripheral part and the internal part being in one piece and connected to each other forming an internal annular shoulder so that the internal part has a substantially annular intermediate face extending in a plane parallel to the two principal faces of the peripheral part and situated between the two principal faces.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: July 14, 2020
    Assignee: AREVA H2GEN
    Inventors: Francois Laridant, Eric Gernot, Fabien Aupretre
  • Patent number: 10700367
    Abstract: A coolant storage tank (1) for storing coolant in a fuel cell system (2), the coolant storage tank comprising a plurality of individually controllable heater elements (7, 8a, 8b). A coolant storage tank comprising a first heater element (7) located at a base of the coolant storage tank and a second heater element (8a) is also disclosed. A coolant storage tank comprising a first coolant storage compartment (50) in fluid communication with a second coolant storage compartment (51), the first coolant storage compartment including at least a first heater element (54) and wherein the second coolant storage compartment is unheated is also disclosed. A method of melting frozen coolant in a coolant storage tank is also disclosed.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: June 30, 2020
    Assignee: Intelligent Energy Limited
    Inventors: Daniel Ninan, Nathaniel Palmer, Sophie Charlotte Harris, Phillip Wardle, Jonathan Cole, Iain Fraser, Peter David Hood, Paul Leonard Adcock
  • Patent number: 10680255
    Abstract: A flow-guiding plate for a fuel cell, including a conductive sheet including a relief: defining alternating flow channels on first and second faces, two successive channels on the first face being separated by walls; defining first and second access holes at ends of each of the flow channels on the second face and of a first group of flow channels on the first face; defining a flow restriction in each flow channel of a second group of flow channels on the first face, the cross-section of the flow restrictions being smaller than the cross-section of the access holes to the flow channels of the first group, the first face including alternating flow channels of the first group and alternating flow channels of the second group.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: June 9, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Jean-Philippe Poirot-Crouvezier
  • Patent number: 10662539
    Abstract: Systems and methods for controlling heat loss from an electrolytic cell in a smelting process using an adjustable fluid passage to control the heat loss from a preferred area of the electrolytic cell side walls based on operating conditions in the electrolytic cell, and to direct the waste heat from the electrolytic cell side walls back into the electrolytic cell.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: May 26, 2020
    Assignee: Bechtel Mining and Metals, Inc.
    Inventor: Robert F. Baxter
  • Patent number: 10658681
    Abstract: An object is to equalize the level of cooling along a top-bottom direction of a fuel cell stack. A fuel cell stack has an anode-side separator placed between a plurality of membrane electrode assemblies. The anode-side separator comprises a separator center area that is arranged to face a power generation area of the membrane electrode assembly; an outer peripheral portion that is extended from the separator center area to outer periphery and has a plurality of openings for cooling medium supply manifolds; and a rib that is firmed from a beam portion provided to separate the adjacent openings for cooling medium supply manifolds from each other, over an area between the openings for cooling medium supply manifolds and the separator center area.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: May 19, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuya Kurihara, Kenji Sato
  • Patent number: 10553881
    Abstract: Provided is a fuel cell, the output voltage of which is improved by making a membrane moist state uniform. An anode-side gas diffusion layer and a cathode-side gas diffusion layer are joined to a membrane electrode assembly, and a separator is joined to the anode-side gas diffusion layer. The separator has a recess portion and a protrusion portion formed to constitute a gas flow path and a refrigerant flow path, respectively. The cross-sectional area of the recess portion is made relatively small at the downstream side in comparison with that at the upstream side, and the cross-sectional area of the protrusion portion is made relatively large at the downstream side in comparison with that at the upstream side, thereby improving the moist state.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: February 4, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shigetaka Hamada
  • Patent number: 10547061
    Abstract: A fuel cell stack includes a structural endplate having an exterior surface. An insulator plate contacts an interior surface of the structural endplate located on an opposite surface of the endplate relative to the exterior surface. A collector plate contacts the insulator plate on an opposite side of the insulator plate relative to the structural endplate. A pocket plate is located on an interior side of the collector plate located on an opposite side of the insulator plate relative to the structural endplate. The collective plate is received in a pocket of an exterior side of the pocket plate. The exterior side is adjacent the collector plate and closer to the structural endplate than an opposite side of the pocket plate.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: January 28, 2020
    Assignee: PLUG POWER INC.
    Inventors: James D'Aleo, Charles Russell Elder
  • Patent number: 10547066
    Abstract: A cooling system is provided for use with a fuel cell. The cooling system comprises a first heat exchanger fluidly connected to an outlet passage of the fuel cell. The first heat exchanger can be configured to condense at least a portion of a fluid passing through the outlet passage of the fuel cell into liquid water. The cooling system can also comprise a second heat exchanger fluidly connected to an outlet passage of the first heat exchanger and an inlet passage of the fuel cell. The second heat exchanger can be configured to cool a fluid passing into the inlet passage of the fuel cell. In addition, the outlet passage of the fuel cell and the inlet passage of the fuel cell can be fluidly connected to a cathode of the fuel cell, and the inlet passage of the fuel cell can be configured to supply water to the cathode.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: January 28, 2020
    Assignee: Nuvera Fuel Cells, LLC
    Inventors: Brian J. Bowers, Steven Fiore, Ware Fuller, Greg Hickey, Changsik Kim
  • Patent number: 10535887
    Abstract: A fuel cell system includes: a first line provided with a fuel cell stack and allowing a coolant to be circulated therethrough; and a second line provided with an air conditioning system and connected to the first line to allow a portion of the coolant to be selectively circulated therethrough, wherein the air conditioning system includes: a first flow path including a first inlet through which first air is introduced; a second flow path including a second inlet through which second air is introduced, and one or more communication holes communicating with the first flow path; an opening and closing device independently opening and closing the second inlet and the communication holes; a cooler disposed in the first flow path and cooling the air passing through the first flow path; and a heater core disposed in the second flow path and exchanging heat between the coolant passing through the second line and the air passing through the second flow path.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: January 14, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Nam Woo Lee, Hyuck Roul Kwon, Sung Wook Na
  • Patent number: 10505164
    Abstract: The invention provides for a high occupancy or heavy-duty vehicle with a battery propulsion power source, which may include lithium titanate batteries. The vehicle may be all-battery or may be a hybrid, and may have a composite body. The vehicle battery system may be housed within the floor of the vehicle and may have different groupings and arrangements.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: December 10, 2019
    Assignee: Proterra Inc.
    Inventors: Dale Hill, Michael Walker, Shaun Onorato, Donald Morris, Stephen Misencik, John Winkel
  • Patent number: 10478903
    Abstract: A metal plate includes a machining subject surface. The metal plate includes a first holding portion designed to be held by a chuck and a second holding portion located at a position separated from the first holding portion and designed to be held by the chuck. The method for manufacturing the metal plate includes performing reference surface machining that machines a surface of the second holding portion that is to be held by the chuck into a predetermined shape in a state in which the first holding portion is held by the chuck. The method includes releasing the first holding portion from the chuck and holding the second holding portion with the chuck. The method also includes machining the machining subject surface in a state in which the second holding portion is held by the chuck.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: November 19, 2019
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Kunihiro Yamaura, Hiroshi Morita
  • Patent number: 10468707
    Abstract: A fuel cell stack assembly for a vehicle is provided which includes a first end plate, a second end plate; and a first plurality of fuel cells disposed between the first and second end plates. The first plurality of fuel cells may define a repeating pattern of a thick fuel cell adjacent to a thin fuel cell. Each fuel cell in the first plurality of fuel cells having an active area thickness. The fuel cell stack assembly of the present disclosure may further include a second plurality of nominal fuel cells.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: November 5, 2019
    Assignee: GM Global Technology Operations LLC.
    Inventors: Xi Yang, Liang Xi, Jeffrey A Rock, Siguang Xu, Yeh-Hung Lai
  • Patent number: 10461353
    Abstract: A fuel cell stack includes a stack of fuel cells, a first end plate, a second end plate, a fluid manifold member, and a protrusion. In the stack of fuel cells, the fuel cells are stacked in a stacking direction. The first end plate is disposed on a first end of the stack of fuel cells in the stacking direction. The second end plate is disposed on a second end of the stack of fuel cells in the stacking direction. The fluid manifold member is disposed on at least one of the first and second end plates. The fluid manifold member allows a fluid to flow through the fuel cells. The protrusion is disposed around a joint region at which the fluid manifold member is joined to the at least one of the first and second end plates. The protrusion protrudes outward in the stacking direction.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: October 29, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Hideharu Naito
  • Patent number: 10422481
    Abstract: In one aspect, a system for controlling the temperature within a gas adsorbent storage vessel of a vehicle may include an air conditioning system forming a continuous flow loop of heat exchange fluid that is cycled between a heated flow and a cooled flow. The system may also include at least one fluid by-pass line extending at least partially within the gas adsorbent storage vessel. The fluid by-pass line(s) may be configured to receive a by-pass flow including at least a portion of the heated flow or the cooled flow of the heat exchange fluid at one or more input locations and expel the by-pass flow back into the continuous flow loop at one or more output locations, wherein the by-pass flow is directed through the gas adsorbent storage vessel via the by-pass line(s) so as to adjust an internal temperature within the gas adsorbent storage vessel.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: September 24, 2019
    Assignee: Savannah River Nuclear Solutions, LLC
    Inventors: David A. Tamburello, Donald L. Anton, Bruce J. Hardy, Claudio Corgnale
  • Patent number: 10403918
    Abstract: A system has a fuel cell. The fuel cell has a source of hydrogen and a source of oxygen containing gas. The hydrogen is connected for passage across the anode. The source of oxygen containing gas is connected to pass across a cathode. The fuel cell produces electricity. A catalytic oxidizer oxidizes hydrogen within the system. A cooling water circuit passes across cooling water passages in the fuel cell and cools the cathode. Cooling water downstream of the cooling water passages passes across the catalytic oxidizer to heat the catalytic oxidizer. An enclosed vehicle is also disclosed.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: September 3, 2019
    Assignee: Hamilton Sundstrand Corporation
    Inventors: David G. Converse, Ping Yu
  • Patent number: 10396368
    Abstract: A fuel cell includes a cathode flow field plate, an anode flow field plate, and a membrane electrode assembly (MEA) sandwiched between the cathode and anode flow field plate. The cathode flow field plate has a flat side and an opposed channel side that the MEA is sandwiched between the anode flow field plate and the flat side of the cathode flow field plate. The cathode flow field plate further has a plurality of flow channels formed at the channel side for enabling fluid flowing along the flow channels to promote electrochemical reaction through the MEA so as to generate electrical energy.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: August 27, 2019
    Assignee: WUHAN TROOWIN POWER SYSTEM TECHNOLOGY CO., LTD.
    Inventor: Xiao Li
  • Patent number: 10396369
    Abstract: A fuel cell stack FS includes: a plurality of cell modules M each including an integrally stacked plurality of single cells C; a sealing plate P intervened between each of the plurality of cell modules M; a manifold M3 that penetrates the plurality of cell modules M and the sealing plate(s) P in a stacking direction to distribute reaction gas, wherein the sealing plate P includes a sealing member S4 that surrounds and seals the manifold M3 between the sealing plate P and each of the plurality of cell modules M, and the sealing member S4 includes an extended portion E that extends toward the manifold M3 so that an end face F4 of the extended portion E is flush with an inner wall of the manifold M3. Generated water is suitably discharged through the manifold M3 without a decrease of the flowability of the reaction gas and an increase of the production cost.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: August 27, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Motoki Yaginuma, Akira Yasutake
  • Patent number: 10355291
    Abstract: The fuel cell system is provided with a radiator, a first flow passage in which refrigerant flows from a fuel cell stack towards a radiator, a second flow passage in which refrigerant flows from the radiator towards a fuel cell stack, a bypass flow passage that connects the radiator with a position in the second flow passage at which refrigerant flows into the fuel cell stack, and a control part. In the bypass flow passage, an on-off valve and a reserve tank are provided from the upstream side. The control part feeds refrigerant to the fuel cell stack by opening the on-off valve and allowing refrigerant previously stored in the reserve tank to join the second flow passage in a case where refrigerant temperature detected by an inflowing refrigerant temperature detection part exceeds previously set base temperature.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: July 16, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hideaki Sakakibara
  • Patent number: 10351747
    Abstract: The invention relates to a method for operating a system at an operating temperature of between 300° C. and 500° C., using a heat transfer fluid comprising branched siloxanes of general formula (I) (R3SiO1/2), (SiO4/2) in which w represents integral values of between 4 and 20, z represents integral values of between 1 and 15, and R represents a methyl group, the sum of the fractions of all siloxanes of general formula (1) being at least 95 mass %, in relation to the whole heat transfer fluid.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: July 16, 2019
    Assignee: Wacker Chemie AG
    Inventors: Steffen Doerrich, Richard Weidner, Sven Heidsieck, Bernhard Rieger