Purification Patents (Class 429/410)
  • Patent number: 10923745
    Abstract: A fuel cell system has a gas delivery-means that circulates the anode exhaust gas back to the anode compartment of the fuel cell for further reaction.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: February 16, 2021
    Assignee: Nuvera Fuel Cells, LLC
    Inventors: Christopher Ainscough, David Henderson
  • Patent number: 10910838
    Abstract: An energy management device comprises a first supply/demand information acquisition unit, a second supply/demand information acquisition unit, and a supply/demand management unit configured to determine, based on the first supply/demand information and the second supply/demand information, at least one of (i) an upper limit value of a power amount that the hydrogen generation system can receive from a power grid during a certain period, (ii) a target value of an amount of hydrogen that the hydrogen generation system generates during the certain period, (iii) an upper limit value of a power amount that each of the one or plurality of tri-generation systems can transmit to the power grid during the certain period, and (iv) a target value of a power amount that each of the one or plurality of tri-generation systems generates during the certain period.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: February 2, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yutaka Tsuji, Yuji Yamamoto, Jun Ishikawa, Kazuyoshi Miyajima, Takayuki Yamada, Yuiko Koga, Shigeaki Esaka
  • Patent number: 10892507
    Abstract: A high temperature electrolyzer assembly comprising at least one electrolyzer fuel cell including an anode and a cathode separated by an electrolyte matrix, and a power supply for applying a reverse voltage to the at least one electrolyzer fuel cell, wherein a gas feed comprising steam and one or more of CO2 and hydrocarbon fuel is fed to the anode of the at least one electrolyzer fuel cell, and wherein, when the power supply applies the reverse voltage to the at least one electrolyzer fuel cell, hydrogen-containing gas is generated by an electrolysis reaction in the anode of the at least one electrolyzer fuel cell and carbon dioxide is separated from the hydrogen-containing gas so that the at least one electrolyzer fuel cell outputs the hydrogen-containing gas and separately outputs an oxidant gas comprising carbon dioxide and oxygen.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: January 12, 2021
    Assignee: FuelCell Energy, Inc.
    Inventors: Fred C. Jahnke, Matthew Lambrech, Pinakin Patel, Mohammad Farooque, Chao-Yi Yuh
  • Patent number: 10854907
    Abstract: A permanent magnet is expressed by a composition formula: RpFeqMrCusCo100-p-q-r-s. M is at least one element selected from the group consisting of Zr, Ti, and Hf. The magnet includes a crystal grain having a main phase including a TbCu7 crystal phase, and a volume ratio of the TbCu7 crystal phase to the main phase is 95% or more.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: December 1, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kimiharu Mizusaki, Hideharu Naito, Kosuke Takagi, Masahiro Sato
  • Patent number: 10847817
    Abstract: The invention relates to a method to determine a content of a gas component in a gas mixture delivered recirculating through an anode chamber (12) or a cathode chamber (13) of a fuel cell (10), wherein the delivery takes place via a delivery device (26) functioning according to the positive displacement principle. The invention also relates to a fuel cell system (100) configured to execute the method. According to the invention, the content of the gas component is determined depending on geometric parameters (V, ?) and operating parameters (n, U, I) of the delivery device (26), as well as on thermodynamic state variables (p, T) of the gas mixture. The sought target quantity, for example a hydrogen component of an anode gas, can thus be determined in a simple and robust manner from quantities that are already known or measured.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: November 24, 2020
    Assignees: VOLKSWAGEN AG, AUDI AG
    Inventors: Harald Heinrich, Wolfgang Hable, Torsten Schwarz
  • Patent number: 10828992
    Abstract: A fuel cell unit includes a fuel cell stack, a reactor, and a case housing the fuel cell stack and the reactor. The case is provided with an intermediate plate that partitions a space inside the case into an upper space and a lower space. The fuel cell stack is housed in the lower space, with a predetermined clearance provided between the intermediate plate and the fuel cell stack. The reactor is housed in the upper space above the fuel cell stack, with an upper portion of the reactor fixed to the case. A through-hole that is provided in the intermediate plate at a position below the reactor. The lower portion of the reactor faces the through-hole.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: November 10, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ikuhiro Nakamura, Shuji Kawamura
  • Patent number: 10826089
    Abstract: The invention relates to a measuring method for determining the recirculation rate (RR) in the anode gas circuit (50) of a fuel cell system (1) with fuel cell (10), wherein an anode gas (52) from an anode chamber (13) is supplied to the fuel cell (10) by means of a gas conveying device (70) via an anode gas recirculation line (51) and thermostated in an anode gas heat exchanger (60) arranged in the anode gas recirculation line (51).
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: November 3, 2020
    Assignee: AVL List GmbH
    Inventor: Martin Hauth
  • Patent number: 10811704
    Abstract: A fuel cell system includes a fuel cell, a first supply flow path, a second supply flow path, a recycle flow path, a circulator, a discharge flow path, a reservoir, a valve, and a controller. The controller opens the valve, determines an open time, for which the valve is opened to discharge the anode off gas, on the basis of the amount of water stored in the reservoir, the discharge time of water that flows through the discharge flow path to be discharged, and the discharge amount of the anode off gas that flows through the discharge flow path to be discharged, and closes the valve when an elapsed time for which the valve is opened reaches the open time.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: October 20, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Miki Abe, Akinori Yukimasa, Junji Morita, Takehiko Ise, Yoshito Usuki
  • Patent number: 10792589
    Abstract: Examples of gas liquid separators include a chamber, a fluid mixture inlet, a gas outlet and a liquid outlet. The fluid mixture inlet and the gas and liquid outlets are in fluid communication with the chamber. A fluid mixture received at the fluid mixture inlet diffuses inside the chamber and is separated into a liquid and a gas. The separated liquid is gravity-fed to the liquid outlet. The gas liquid separators have reduced dispersion and increased liquid recovery in comparison to conventional gas liquid separators used for chromatographic separations. The reduced dispersion yields an improvement in the shape of chromatographic peaks.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: October 6, 2020
    Assignee: WATERS TECHNOLOGIES CORPORATION
    Inventors: Emily J. Berg, Joshua A. Shreve, Edwin H. Denecke
  • Patent number: 10797514
    Abstract: A fuel cell system having a power module including at least one fuel cell segment, an input output module including at least one inverter, a rectifier, and an electric distribution module having at least a first electrical connector and a second electrical connector. The at least one fuel cell segment may be electrically connected to the at least one inverter and may be electrically connected to an information technology (IT) load via a split bus. The at least one inverter may be electrically connected to an alternating current (AC) source via the first electrical connector of the electric distribution module.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: October 6, 2020
    Assignee: BLOOM ENERGY CORPORATION
    Inventors: Peter Gross, Carl Cottuli, Arne Ballantine
  • Patent number: 10790561
    Abstract: The disclosed embodiments relate to the design of a portable and cost-effective fuel cell system for a portable computing device. This fuel cell system includes a fuel cell stack which converts fuel into electrical power. It also includes a fuel source for the fuel cell stack and a controller which controls operation of the fuel cell system. The fuel system also includes an interface to the portable computing device, wherein the interface comprises a power link that provides power to the portable computing device, and a bidirectional communication link that provides bidirectional communication between the portable computing device and the controller for the fuel cell system.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: September 29, 2020
    Assignee: Apple Inc.
    Inventors: Bradley L. Spare, Vijay M. Iyer, Jean L. Lee, Gregory L. Tice, Michael D. Hillman, David I. Simon
  • Patent number: 10790529
    Abstract: Provided is an oxygen reduction catalyst element including a water impermeable, gas permeable membrane coated on at least one a portion thereof with a porous layer including a mixture of a non-ionic polymer and at least one oxygen reduction catalytic particulate material. Also provided herein is a method of producing the oxygen reduction catalyst element, a cathode including the same and a fuel cell making use of such cathode.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: September 29, 2020
    Assignee: EMEFCY LTD.
    Inventors: Ronen-Itzhak Shechter, Yair Haim Wijsboom, Lior Eshed
  • Patent number: 10741868
    Abstract: A vehicle may include an engine compartment and a fuel cell stack arranged in the engine compartment. The fuel cell stack may include an enclosure having an interior space and a cell disposed in the interior space of the enclosure configured to generate electrical energy. The enclosure may include an enclosure inlet guiding air from an exterior of the enclosure to the interior space, and an enclosure outlet guiding air from the interior space to the exterior. The fuel cell stack may also include a filter preventing foreign matter from being introduced into the interior space of the enclosure arranged in the enclosure inlet. The filter may include a filter member covering the enclosure inlet and a filter cover covering the filter member. The filter cover may include a filter cover inlet guiding air to the filter member. The filter cover inlet may fluidically communicate with the engine compartment.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: August 11, 2020
    Assignees: MAHLE DONGHYUN FILTER SYSTEMS CO., LTD., MAHLE INTERNATIONAL GMBH
    Inventor: Chanjung Jung
  • Patent number: 10625198
    Abstract: A desulfurization apparatus according to the present invention includes: a first desulfurizer filled with a first desulfurization agent that removes a first sulfur compound from a hydrocarbon fuel; and a second desulfurizer filled with a second desulfurization agent that removes a second sulfur compound from the hydrocarbon fuel, the second desulfurizer being provided downstream of the first desulfurizer in a flow direction of the hydrocarbon fuel. The second desulfurization agent is constituted by a porous coordination polymer having a polymeric structure that is a combination of copper ions and organic ligands. A sulfur compound adsorption ability of the second desulfurization agent to adsorb the second sulfur compound is different from a sulfur compound adsorption ability of the first desulfurization agent to adsorb the first sulfur compound. A temperature of the second desulfurization agent is kept to 100° C. or lower.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: April 21, 2020
    Assignees: PANASONIC CORPORATION, KYOTO UNIVERSITY
    Inventors: Masashi Morita, Jin Zhang, Hidenobu Wakita, Yoichiro Tsuji, Susumu Kitagawa, Masakazu Higuchi
  • Patent number: 10622653
    Abstract: A system comprising: a solid oxide fuel cell having an anode and a cathode; an anode recycle loop; and an adiabatic steam reformer positioned in the anode recycle loop.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: April 14, 2020
    Assignee: Battelle Memorial Institute
    Inventors: Greg A. Whyatt, Lawrence A. Chick
  • Patent number: 10622654
    Abstract: A system, method, and apparatus for fuel cell utilizing hydrogen from reforming propane fuel include a propane fuel reformer, controlling operating parameters of O2/C ratio, pressure, and catalyst temperature, and a high temperature proton exchange membrane fuel cell (HT-PEMFC) controlling operating parameters of pressure and temperature. For mobile application, the system includes a 3D printed reformer for generation of hydrogen rich gas.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: April 14, 2020
    Assignee: Rochester Insitute of Technology
    Inventors: Michael Waller, Mark Walluk, Thomas Trabold, Michael Bradley
  • Patent number: 10608272
    Abstract: A carbon dioxide capture system for capturing carbon dioxide from an exhaust stream. The system may include a fuel cell configured to output a first exhaust stream comprising carbon dioxide and water. The system may further include an electrolyzer cell configured to receive a first portion of the first exhaust stream and output a second exhaust stream comprising oxygen and carbon dioxide. The fuel cell may be a solid oxide fuel cell. The electrolyzer cell may be a molten carbonate electrolysis cell.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: March 31, 2020
    Assignee: FuelCell Energy, Inc.
    Inventor: Fred C. Jahnke
  • Patent number: 10584052
    Abstract: Disclosed are methods for operating a glass furnace, the method comprises the steps of feeding a non-pre-reformed hydrocarbon fuel gas stream to a pre-reformer forming a pre-reformed hydrocarbon fuel gas stream, feeding the pre-reformed hydrocarbon fuel gas stream to burners of the furnace, combusting oxidant and the pre-reformed hydrocarbon fuel gas with the burners to produce flue gas, heating air through heat exchange with the flue gas at a recuperator, and transferring heat from heated air to pre-reformer tubes of the pre-reformer. A glass furnace system is also disclosed.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: March 10, 2020
    Assignee: American Air Liquide, Inc.
    Inventors: Taekyu Kang, Robert A. Gagliano, Pavol Pranda, Ashkan Iranshahi
  • Patent number: 10581097
    Abstract: A vehicle includes a body, a fuel cell stack supported by the body for tilting relative thereto, a pivoting system and at least one control module. The fuel cell stack includes a fuel cell operable to generate electrical energy using fuel and exhaust water as a byproduct, and an exhaust water drainage port in fluid communication with the fuel cell. The pivoting system is mechanically connected between the body and the fuel cell stack, and operable to selectively tilt the fuel cell stack relative to the body. The at least one control module is communicatively connected to the pivoting system, and configured to operate the pivoting system in response to an inclination event associated with the body being tilted away from the exhaust water drainage port. By the operation of the pivoting system, the fuel cell stack is tilted relative to the body toward the exhaust water drainage port.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: March 3, 2020
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Christopher Lee Rovik
  • Patent number: 10553887
    Abstract: A fuel cell system of controlling a valve assembly to maintain a feed flow rate while avoiding a vibration generation range in order to reduce noise due to vibrations generated in the valve assembly is provided. The fuel cell system includes a fuel cell stack that receives fuel and generates electric energy and a valve assembly that adjusts a flow rate of fuel that is supplied to the fuel cell stack. A controller then oscillates the flow rate of the fuel to alternately have a first value that is equal to or greater than a upper limit value of a first vibration generation range and a second value that is equal to or less than a lower limit value of the first vibration generation range, in response to determining that the flow rate of the fuel supplied through the valve assembly is included in the first vibration generation range.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: February 4, 2020
    Assignee: Hyundai Motor Company
    Inventors: GunHyung Park, JunYoung Park
  • Patent number: 10483574
    Abstract: A fuel cell system having a fuel cell using a fuel gas containing a combustible gas and an oxidant gas to generate power includes an exhaust gas route for an exhaust gas from the fuel cell to circulate, an air supplier absorbing air within the fuel cell system and supplying the air to the exhaust gas, an air supply route for the air to circulate, a merging part where the exhaust gas and the air merge, a discharge route discharging a mixed gas composed of the merged exhaust gas and the air to the atmosphere, and a combustible gas detector that detects the concentration of a combustible gas in the mixed gas. With respect to flow of the air circulating in the air supply route and the discharge route, from the upstream side, the air supplier, the merging part, and the combustible gas detector are disposed in this order.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: November 19, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Akinori Yukimasa, Takehiko Ise, Yoshito Usuki
  • Patent number: 10465849
    Abstract: A hydrogen gas filling method includes: a step for acquiring a pre-supply upstream pressure that is a pressure in a station side of a piping at time t0, a step for starting the supply of hydrogen gas from the station at time t1 that is after the pre-supply upstream pressure is acquired, a step for acquiring a post-supply upstream pressure at time t2 that is immediate after the supply of hydrogen gas starts, a step for acquiring a start-time flowrate that is a flowrate of hydrogen gas at the same period as the step for starting, a step for estimating the pressure loss generated in the piping at the time of the supply by using the pre-supply upstream pressure, post-supply upstream pressure, and the start-time flowrate, and a step for stopping the supply of hydrogen gas so that a tank pressure conforms with a predetermined target pressure.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: November 5, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Kiyoshi Handa
  • Patent number: 10465304
    Abstract: A compound green-energy purification device includes a casing having a water inlet port and a gas outlet port, a filtration module arranged in the casing and includes a first filtration assembly and a second filtration assembly, an electrolysis unit arranged in the casing, and a separation base arranged in the casing and located between the filtration module and the electrolysis unit. The separation base includes a pipe and at least one hole formed therein such that the hole is located in a bottom of the separation base. Water is supplied through the water inlet port and flows through the hole of the separation base into the electrolysis unit to allow the electrolysis unit to heat and convert the water into steam, which moves through the pipe, the first filtration assembly, and the second filtration assembly so as to separate the water and the gas from each other.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: November 5, 2019
    Inventors: Bo-Yu Huang, Bing-Hua Huang
  • Patent number: 10461346
    Abstract: A power generator includes a power generator cavity adapted to receive a fuel cartridge, a protrusion disposed with in the cavity to engage a check valve of the fuel cartridge, a fuel cell to convert hydrogen and oxygen to electricity and to generate water vapor, and a passage to transport hydrogen from the cavity to the fuel cell and water vapor to the cavity.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: October 29, 2019
    Assignee: Honeywell International Inc.
    Inventor: Steven J. Eickhoff
  • Patent number: 10454119
    Abstract: A fuel cell includes: a membrane electrode assembly; cathode and anode-side water-repellent layers; a cathode-side separator that includes a cathode gas passage and an air exhaust manifold communicated to the cathode gas passage. The cathode gas passage includes a water exhaust inhibiting portion and a water storage portion. The water exhaust inhibiting portion is provided on a lowermost passage positioned on a lowermost side in a gravity direction. The water storage portion is provided upstream of the water exhaust inhibiting portion such that liquid water is stored in the water storage portion by the water exhaust inhibiting portion. A liquid water connection portion is provided in the water-repellent layer so as to pass through the water-repellent layer such that liquid water flows between the catalyst layer and the water storage portion.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: October 22, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki Matsusue, Yasushi Araki, Kohsei Yoshida, Hiromi Tanaka
  • Patent number: 10439241
    Abstract: A method for reducing fuel cell voltage loss in a fuel cell that includes an anode catalyst layer including an anode catalyst and a cathode catalyst layer including a cathode catalyst with a proton exchange layer interposed between the anode catalyst layer and the cathode catalyst layer. The method includes a step of initiating shutdown of the fuel cell. Carbon monoxide or carbon monoxide-like species contaminating the anode catalyst is oxidized during shutdown such that carbon monoxide or carbon monoxide-like species is removed from the anode catalyst.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: October 8, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jingxin Zhang, Paul Taichiang Yu, Balasubramanian Lakshmanan
  • Patent number: 10424807
    Abstract: A fuel cell system includes a fuel cell stack including an air electrode and a fuel electrode, a stack housing having a hollow therein to accommodate the fuel cell stack in the hollow, an air compressor configured to pump air to supply the air to the air electrode, a ventilation pipe connecting an entrance of the air compressor and the hollow, and at least one vent hole provided on an outer wall of the stack housing such that the hollow and an outside of the stack housing communicate with each other. An interior of the stack housing is ventilated by lowering of a pressure at the entrance of the air compressor, which is generated as the air compressor is operated, while air outside the stack housing is suctioned into the entrance of the air compressor after passing through the vent hole, the hollow, and the ventilation pipe.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: September 24, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jung Han Yu, Yong Suk Heo, Duck Whan Kim, Kwi Seong Jeong
  • Patent number: 10388971
    Abstract: Fuel-cell thermal management systems and control schemes therefore are disclosed. In one embodiment, the system may include a fuel-cell stack, a heat-exchanger, a thermal battery including a material having a melting temperature of 50-120° C., a first coolant loop including the fuel-cell stack and the thermal battery and excluding the heat-exchanger, and a second coolant loop including the fuel-cell stack, the thermal battery, and the heat-exchanger. The first and second coolant loops may be configured to heat and cool the fuel-cell stack, respectively. The system may include a controller or processor configured to direct coolant to transfer heat from the thermal battery to the fuel-cell stack based on a negative heat rejection status of the fuel-cell stack and to transfer heat from the fuel-cell stack to the thermal battery based on a positive heat rejection status of the fuel-cell stack when the thermal battery is below a target temperature.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: August 20, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Furqan Zafar Shaikh, Sunil Katragadda, W. Cary Cole, Colby Jason Buckman, Phillip Bonkoski
  • Patent number: 10381698
    Abstract: A metal air battery includes an air purification module which communicates fluid to a battery cell module, purifies air flowing from an outside, and supplies the purified air to the battery cell module. The air purification module includes: a first air purifier which filters a first impurity of a plurality of impurities in the air flowing from the outside; and a second air purifier which filters a second impurity of the plurality of impurities, which is different from the first impurity.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: August 13, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeongsik Ko, Hyukjae Kwon
  • Patent number: 10381666
    Abstract: A control device of a fuel cell system includes a sensor state determining unit and a power generation control unit. A sensor state determining unit performs sensor state determining control before a first startup of the fuel cell after supply complete timing into a first tank and a second tank based on first pressure detected by a first pressure sensor at the supply complete timing, and second pressure detected by a second pressure sensor after a valve is opened. A power generation control unit starts up the fuel cell only when the sensor state determining unit determines that the first pressure sensor and the second pressure sensor are normal.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: August 13, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshihiro Ohkuwa, Taiki Ikeda
  • Patent number: 10283789
    Abstract: A fuel cell stack includes a stack body, a stack casing, and an exhaust duct. The stack body includes a first end, a second end, a bottom, a top, a side, and a downwardly inclined portion. The top has a substantially flat portion with an end point. The side extends between the top and the bottom and between the first end and the second end. The downwardly inclined portion connects the end point of the substantially flat portion and the side. The stack casing accommodates the stack body. The stack casing includes an upper wall and a side wall. The side wall is opposite to the side of the stack body. The exhaust duct is connected to the upper wall of the stack casing. The exhaust duct has an opening on the upper wall. The opening is arranged between the end point and the side wall.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: May 7, 2019
    Assignee: HONDA MOTOR CO., LTD..
    Inventor: Hideharu Naito
  • Patent number: 10280852
    Abstract: A control apparatus for an internal combustion engine according to the invention is applied to an internal combustion engine in which EGR gas and condensed water generated by an EGR cooler are supplied into a cylinder. The control apparatus calculates an equivalence ratio of the internal combustion engine, and controls an EGR valve and a condensed water supply valve such that, when the equivalence ratio is high, a supply rate of the condensed water increases and a supply rate of the EGR gas decreases relative to when the equivalence ratio is low.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: May 7, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masaaki Katayama, Takeshi Hashizume
  • Patent number: 10283802
    Abstract: Systems and methods are provided for incorporating molten carbonate fuel cells into a heat recovery steam generation system (HRSG) for production of electrical power while also reducing or minimizing the amount of CO2 present in the flue gas exiting the HRSG. An optionally multi-layer screen or wall of molten carbonate fuel cells can be inserted into the HRSG so that the screen of molten carbonate fuel cells substantially fills the cross-sectional area. By using the walls of the HRSG and the screen of molten carbonate fuel cells to form a cathode input manifold, the overall amount of duct or flow passages associated with the MCFCs can be reduced.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: May 7, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Paul J. Berlowitz, Timothy Andrew Barckholtz, Frank Hershkowitz
  • Patent number: 10256487
    Abstract: A method of accelerating activation of a fuel cell stack includes repeating, a plurality of times, a process including: applying a specific cyclic voltammetric pulse of high current to the fuel cell stack for a designated time and maintaining shutdown of the fuel cell stack.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: April 9, 2019
    Assignee: Hyundai Motor Company
    Inventor: Hyun Suk Choo
  • Patent number: 10249894
    Abstract: A fuel cell system includes: a first fuel cell stack; and a second fuel cell stack with lower output voltage than the first fuel cell stack, a pre-switching stack configured by the first fuel cell stack or the second fuel cell stack, a step-up stack configured by the first fuel cell stack or the second fuel cell stack, a post-switching stack configured by at least the first fuel cell stack, and steps up voltage of the step-up stack with the pre-switching stack connected to the load and then switches to a connection state where the post-switching stack is connected to the load.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: April 2, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Daiki Tanaka, Tatsuya Yaguchi
  • Patent number: 10236521
    Abstract: A fuel cell system is provided that can operate continuously and appropriately when a water self-sustaining operation of the fuel cell system is difficult due to environmental conditions and operating conditions, etc. When a first water level corresponding to a water shortage in a condensed water tank is detected using a water level detector, a controller implements a water-saving mode where the output of a fuel cell is decreased regardless of the external power load and the amount of reforming water used is reduced. When it is determined using a cooling determination device during the water-saving mode that the exhaust gas cooling capability in a condenser brought about by a cooling medium is at least a prescribed value, the controller implements a water recovery mode where the output of the fuel cell is increased regardless of the external power load and the amount of condensed water recovered is increased.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: March 19, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Junji Morita, Akinori Yukimasa
  • Patent number: 10193177
    Abstract: A fuel cell system and method that enables warm-up power generation corresponding to the residual water volume in the fuel cell stack without using auxiliary devices for measuring the residual water volume in the fuel cell stack. A controller computes total generated electrical energy Q by integrating of the generated current detected by current sensor during the period from start-up to shutting down of the fuel cell system, and stores the result in total generated electrical energy storage part. Also, controller measures fuel cell temperature Ts at the last shutting down cycle with temperature sensor, and stores it in power generation shutting down temperature storage part.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: January 29, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takahiro Kaito, Keigo Ikezoe
  • Patent number: 10188992
    Abstract: Disclosed are polybenzimidazoles containing sulfonyl groups. The polymers can be synthesized in Eaton's reagent from 3,3?,4,4?-tetraaminodiphenylsulfone, which itself can be synthesized from 4,4?-dichlorodiphenylsulfone. Methods of synthesizing the polymers are disclosed. The disclosed polymers can be used for high temperature H2/CO2 separation membranes and other uses.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: January 29, 2019
    Assignees: Board of Regents, The University of Texas System, Virginia Tech Intellectual Properties, Inc.
    Inventors: James E. McGrath, Judy S. Riffle, Benny D. Freeman
  • Patent number: 10183592
    Abstract: An exhaust-air guide of a fuel cell stack having a cooling structure, in particular in a motor vehicle, is provided. The cooler structure belongs to the functional environment of the fuel cell stack and is in form through which ambient air flows. The exhaust air of the fuel cell stack is guided to a point upstream of the cooler structure such that the exhaust air flows through the cooler structure in a throughflow direction and, in so doing, entrains ambient air in accordance with the jet pump principle. The exhaust air of the fuel cell stack may be cooled before being guided to the cooler structure. The exhaust air of the fuel cell stack is guided to a point upstream of the cooler structure in multiple pipes that are oriented at least approximately parallel to the inflow surface of the cooler structure, from which pipes the exhaust air emerges via outlet openings in the pipe wall. The outlet openings are situated at a suitable angle with respect to the throughflow direction.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: January 22, 2019
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Stefan Haase, Andreas Buchner, Michael Bauer
  • Patent number: 10158133
    Abstract: A fuel cell system is provided. The system includes a fuel cell stack, a plurality of valves operated to be selectively opened or closed to supply fuel to the fuel cell stack and remove impurities, and a pressure sensor that detects a state of pressure of fuel supplied to the fuel cell stack. A fuel cell controller then determines whether the pressure sensor or the plurality of valves are faulty by comparing increase or decrease time of the pressure detected by the pressure sensor with a reference range of time delay, as the plurality of valves are operated to be opened or closed.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: December 18, 2018
    Assignee: Hyundai Motor Company
    Inventors: Sungsuk Ok, Kyuil Lee
  • Patent number: 10158139
    Abstract: One embodiment of the present invention is a unique fuel cell system. Another embodiment is a unique desulfurization system. Yet another embodiment is a method of operating a fuel cell system. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for fuel cell systems and desulfurization systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: December 18, 2018
    Assignee: LG FUEL CELL SYSTEMS INC.
    Inventor: John R. Budge
  • Patent number: 10122038
    Abstract: A hydrogen generator includes a reformer that generates a hydrogen-containing gas from a source gas and reforming water, a condensed water channel through which condensed water flows, a circulating water channel through which circulating water flows, an ion exchange resin filter provided to the circulating water channel and deionizing the circulating water, a reservoir tank including a first reservoir provided to the condensed water channel and a second reservoir provided to the circulating water channel, a first communicator through which the first and second reservoirs are in communication with each other, and a reforming water channel that extends from a junction of the circulating water channel and supplies the circulating water as reforming water to the reformer. The pressure in the inner space of the first reservoir is maintained to be the same as the pressure in the inner space of the second reservoir.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: November 6, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jun Yoshida, Akinori Yukimasa
  • Patent number: 10090547
    Abstract: The present invention is directed to a fuel cell system with various features for optimal operations of an electronic device, a battery charger or a fuel refilling device. The fuel cell system includes an information storage device associated with the fuel supply, pump and/or refilling device. The information storage device can be any electronic storage device including, but not limited to, an EEPROM or a PLA. The information storage device can include encrypted information. The information storage device can include software code for confirming the identification of the cartridge before operation of the electronic device and/or refilling device. The information storage device can include instructions for a hot swap operation to shut down properly when the fuel supply is ejected while the electronic device is in operation. The present invention is also directed to system architecture for a fuel cell system that utilizes information storage devices.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: October 2, 2018
    Assignee: Intelligent Energy Limited
    Inventors: Paul Adams, Andrew J. Curello, Floyd Fairbanks
  • Patent number: 10038208
    Abstract: When a current value is not greater than a reference value, a control unit estimates a discharge amount of a fuel gas based on a lost amount of the fuel gas and a consumed amount by electrical generation of the fuel gas, the lost amount being calculated based on a decrease rate of pressure in a supply passage during an opening period of a discharge valve, the consumed amount by electrical generation being calculated based on the current value during the opening period, and when the current value is greater than the reference value, the control unit estimates the discharge amount based on the differential pressure during the opening period.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: July 31, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuo Yamamoto, Hiroyuki Imanishi
  • Patent number: 10026978
    Abstract: A method of generating electricity with a fuel cell includes a phase in which the cell is primed; and a phase in which the cell functions at a stable rate, during which the cell, fed with a hydrogenated gas, generates electricity and heat. In order to prime the cell, it is fed with a hydrogenated gas including at least 70 vol. % hydrogen, generated by self-sustaining combustion of at least one hydrogenated gas-generating solid pyrotechnic charge; and while it is operating at a stable rate, the cell is fed with a hydrogenated gas containing at least 85 vol. % hydrogen, generated by thermal decomposition of at least one hydrogenated gas-generating solid pyrotechnic charge; a portion of the heat produced by the operating cell being transferred to the at least one solid charge in order to start and maintain the thermal decomposition thereof.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: July 17, 2018
    Assignees: AIRBUS SAFRAN LAUNCHERS SAS, SAFRAN POWER UNITS
    Inventors: Jean-Philippe Goudon, Arnaud Fournet, Pierre Yvart, Philippe Gautier, Laurent Soulie, Fabien Boudjema
  • Patent number: 10014536
    Abstract: A fuel cell system includes: a reformer generating a reformed gas using a raw material; a fuel cell generating electric power; a raw material supply passage; a hydro-desulfurizer operative to remove sulfur component in the raw material; a recycle passage through which the reformed gas is supplied to the raw material supply passage provided upstream of the hydro-desulfurizer; a temperature detector detecting a temperature of the hydro-desulfurizer; and a controller, wherein: when the temperature of the hydro-desulfurizer reaches a predetermined temperature, the controller increases a flow rate of the raw material from a predetermined flow rate by a flow rate corresponding to a flow rate of the recycled gas, and then, the controller starts supplying the recycled gas to the recycle passage; and after the recycled gas reaches an upstream end of the recycle passage, the controller returns the flow rate of the raw material to the predetermined flow rate.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: July 3, 2018
    Assignees: Panasonic Corporation, TOTO LTD.
    Inventors: Shigenori Onuma, Noboru Taniguchi, Yasushi Kaneko, Toru Sukawa, Osamu Sakai, Yuichi Mikami, Hiroshi Shirahama, Toshiharu Otsuka
  • Patent number: 9985302
    Abstract: A fuel cell system includes a hydro-desulfurizer that removes sulfur compounds in power generation material, a fuel cell unit that generates electric power using the power generation material, a recycle channel that supplies a part of hydrogen-containing gas from the fuel cell unit to the power generation material before the power generation material enters the hydro-desulfurizer, and an ejector which is provided in a power generation material channel upstream of the hydro-desulfurizer and into which hydrogen-containing gas from the recycle channel flows, in which the ejector is heated by exhaust gas discharged from the fuel cell unit.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: May 29, 2018
    Assignee: PANASONIC CORPORATION
    Inventor: Yuuichi Yakumaru
  • Patent number: 9979040
    Abstract: A redox device, in particular a hydrogen-oxygen redox device, includes at least one redox unit which is provided for carrying out at least one redox reaction with consumption and/or production of a first gas, in particular hydrogen gas, and/or of a second gas, in particular oxygen gas. The redox device includes at least one gas purification unit for freeing the hydrogen gas of contamination by oxygen gas and/or freeing the oxygen gas of contamination by hydrogen gas.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: May 22, 2018
    Assignee: Airbus DS GmbH
    Inventors: Walter Jehle, Sebastian Markgraf, Willigert Raatschen, Joachim Lucas
  • Patent number: 9972853
    Abstract: Disclosed herein is a fuel cell system. The fuel cell system includes: a turbocharger configured to receive and pressurize air discharged from an outlet of a fuel cell and supply the pressurized air to an inlet of the fuel cell; a plurality of valves configured to be provided at an inlet and an outlet of the turbocharger to control an amount of air supplied to the turbocharger in the air discharged from the outlet of the fuel cell and control a pressure of air supplied from the turbocharger to the inlet of the fuel cell; and a controller configured to calculate an air pressure required for the fuel cell and control an opening of the valves based on the calculated air pressure required for the fuel cell.
    Type: Grant
    Filed: May 10, 2015
    Date of Patent: May 15, 2018
    Assignee: Hyundai Motor Company
    Inventors: Min Su Kang, Chang Seok Ryu, Sung Do Kim, Dong Hun Lee
  • Patent number: 9966620
    Abstract: A hydrogen generator has: a reformer that produces hydrogen-containing gas from raw material gas through reforming; a temperature detector that detects the temperature of the reformer; a hydro-desulfurizer that removes sulfur from the raw material gas through hydrodesulfurization; a recycle flow passage through which recycle gas as a portion of the hydrogen-containing gas is supplied to the hydro-desulfurizer; a raw material gas flow detector that detects the flow rate of the raw material gas, the raw material gas flow detector located somewhere in a flow passage for the raw material gas upstream of a junction of the recycle gas and the raw material gas; and a controller that controls the flow rate of the recycle gas in accordance with the temperature of the reformer, the flow rate of the raw material gas, and the flow rate of the recycle gas.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: May 8, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Miki Abe, Akinori Yukimasa