Patents by Inventor Tatsuya Yaguchi

Tatsuya Yaguchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11233255
    Abstract: The present invention concerns a starting burner (100a; 100b) for a fuel cell system (1000a; 1000b), having a catalyst (10) with a catalyst inlet (11) and a catalyst outlet (12), a catalyst area (13) being formed between the catalyst inlet (11) and the catalyst outlet (12), and the catalyst area (13) being surrounded by a catalyst wall (14) in a passage direction (D) from the catalyst inlet (11) to the catalyst outlet (12), and an operating fluid guide section (20) for supplying an operating fluid (F1) to the catalyst inlet (11), wherein the operating fluid guide section (20) is arranged outside the catalyst (10) at least in sections along the catalyst wall (14). The invention also concerns a fuel cell system (1000) with the starting burner (100a; 100b) and a method for heating a service fluid (F1) in the fuel cell system (1000a; 1000b).
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: January 25, 2022
    Assignees: AVL List GmbH, Nissan Motor Co., Ltd.
    Inventors: Jörg Mathé, Michael Reissig, Thomas Krauss, Julian Makinson, Bernd Reiter, Vincent Lawlor, Tatsuya Yaguchi, Tetsushi Noda, Takeshi Shiomi
  • Patent number: 11211620
    Abstract: A fuel cell system comprising: a fuel cell; a combustor configured to combust a fuel and an oxidizing gas to supply a combustion gas to a cathode inlet of the fuel cell; a combustion fuel supply device configured to supply a fuel to the combustor; a combustion oxidizing gas supply device configured to supply an oxidizing gas to the combustor; an anode-discharged-gas discharge passage configured to discharge an anode discharged gas from an anode outlet of the fuel cell; a cathode-discharged-gas discharge passage configured to discharge a cathode discharged gas from a cathode outlet of the fuel cell; and a controller configured to control a supply of the fuel to the combustor by the combustion fuel supply device and a supply of the oxidizing gas to the combustor by the combustion oxidizing gas supply device, wherein the controller includes a post-stop-request combustor-supply control unit configured to execute the supply of the fuel and the supply of the oxidizing gas to the combustor after a request for sto
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: December 28, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Tatsuya Yaguchi
  • Patent number: 11205785
    Abstract: A fuel cell system includes a fuel cell configured to be supplied with fuel and air to generate electricity, a reformer configured to reform the fuel to be supplied to the fuel cell, a heat source device configured to heat an off-gas discharged from the fuel cell to produce a heating gas and configured to heat the reformer, a fuel cell heating device configured to heat the air to be supplied to the fuel cell using the heating gas, a fuel cell temperature acquisition unit configured to acquire a temperature of the fuel cell, and a reformer temperature acquisition unit configured to acquire a temperature of the reformer.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: December 21, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Hayato Chikugo, Shinichi Miyazaki, Tatsuya Yaguchi, Masashi Sato
  • Patent number: 11196059
    Abstract: The invention relates to a fuel cell system (100) having a fuel supply unit (8) and fuel cells (1, 2) having a cathode (4, 4?) and an anode (3, 3?), wherein the cathode (4, 4?) features a cathode feed line (40), the anode (3, 3?) features an anode feed line (30), and the flow in the anode (3, 3?) is connected with the flow in the fuel supply unit (8) via the anode feed line (30), in which a reforming apparatus (13) is arranged, and having an anode exhaust line (6) provided with at least one burner apparatus (22, 23).
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: December 7, 2021
    Assignees: AVL List GmbH, Nissan Motor Co., Ltd.
    Inventors: Michael Reissig, Bernd Reiter, Jörg Mathé, Thomas Krauss, Stefan Planitzer, Vincent Lawlor, Jürgen Rechberger, Masanari Yanagisawa, Shinichi Miyazaki, Hayato Chikugo, Tadaki Mano, Tatsuya Yaguchi
  • Patent number: 11069907
    Abstract: A fuel cell system includes: a fuel cell; a fuel treating unit configured to treat a raw fuel and generate fuel gas for the fuel cell; an oxidant-gas heater configured to heat oxidant gas for the fuel cell; a combustor configured to combust the raw fuel and generate combustion gas to heat the fuel treating unit and the oxidant-gas heater; and a control unit configured to control supplying of the raw fuel to the fuel treating unit and the combustor at the time of warming-up of the fuel cell. The control unit supplies the raw fuel to both of the fuel treating unit and the combustor when the fuel treating unit is at an operable temperature of the fuel treating unit.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 20, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Tetsushi Noda, Hayato Chikugo, Tatsuya Yaguchi
  • Publication number: 20210202966
    Abstract: The fuel cell system includes a fuel cell, a first injection device associated with a supply of a fuel to the fuel cell, and a second injection device provided on an upstream side of the first injection device in a fuel flow passage from a fuel storage unit to the first injection device. The first and second injection devices switch a flow passage extending downstream from the fuel flow passage, between a first flow passage via the first injection device and second flow passage via the second injection device. The second injection device operates at a lower frequency than the first injection device during an operation of the fuel system.
    Type: Application
    Filed: May 30, 2018
    Publication date: July 1, 2021
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Susumu MAESHIMA, Akinobu MORIYAMA, Tatsuya YAGUCHI, Masashi SATO, Tadaki MANO, Hiroyuki WADA
  • Patent number: 11024863
    Abstract: According to a control method of controlling a fuel cell system, the fuel cell system including a solid oxide fuel cell that is supplied with an anode gas and a cathode gas to generate electric power, a fuel processor that at least reforms fuel to generate the anode gas and supplies the generated anode gas to the fuel cell, and a combustor that combusts the supplied fuel to perform warming of the fuel processor, the method is conducted when warming is performed at least at starting-up of the system.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: June 1, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Tatsuya Yaguchi, Hayato Chikugo
  • Patent number: 10985387
    Abstract: A fuel cell system comprises a fuel cell supplied with fuel and air to generate electricity, an evaporator evaporating the fuel, an off-gas heating device heating an off-gas discharged from the fuel cell to produce a heating gas, a fuel cell heating device heating the fuel cell using the heating gas, an evaporator heating device heating the evaporator using the heating gas, a fuel cell temperature acquisition unit, an evaporator temperature acquisition unit, and a controller configured to, in a warm-up operation to perform a warm-up of the evaporator and a warm-up of the fuel cell, control at least one of the evaporator heating device and the fuel cell heating device based on the temperature of the evaporator and the temperature of the fuel cell to adjust at least one of a heating amount of the evaporator and a heating amount of the air by the heating gas.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: April 20, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Shinichi Miyazaki, Hayato Chikugo, Masashi Sato, Tatsuya Yaguchi
  • Publication number: 20200388862
    Abstract: A fuel cell system comprises a fuel cell supplied with fuel and air to generate electricity, an evaporator evaporating the fuel, an off-gas heating device heating an off-gas discharged from the fuel cell to produce a heating gas, a fuel cell heating device heating the fuel cell using the heating gas, an evaporator heating device heating the evaporator using the heating gas, a fuel cell temperature acquisition unit, an evaporator temperature acquisition unit, and a controller configured to, in a warm-up operation to perform a warm-up of the evaporator and a warm-up of the fuel cell, control at least one of the evaporator heating device and the fuel cell heating device based on the temperature of the evaporator and the temperature of the fuel cell to adjust at least one of a heating amount of the evaporator and a heating amount of the air by the heating gas.
    Type: Application
    Filed: August 14, 2017
    Publication date: December 10, 2020
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Shinichi MIYAZAKI, Hayato CHIKUGO, Masashi SATO, Tatsuya YAGUCHI
  • Publication number: 20200365916
    Abstract: A fuel cell system includes a fuel cell configured to be supplied with fuel and air to generate electricity, a reformer configured to reform the fuel to be supplied to the fuel cell, a heat source device configured to heat an off-gas discharged from the fuel cell to produce a heating gas and configured to heat the reformer, a fuel cell heating device configured to heat the air to be supplied to the fuel cell using the heating gas, a fuel cell temperature acquisition unit configured to acquire a temperature of the fuel cell, and a reformer temperature acquisition unit configured to acquire a temperature of the reformer.
    Type: Application
    Filed: August 14, 2017
    Publication date: November 19, 2020
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Hayato CHIKUGO, Shinichi MIYAZAKI, Tatsuya YAGUCHI, Masashi SATO
  • Publication number: 20200266460
    Abstract: A fuel cell system is provided and the fuel cell system includes: a fuel cell; a fuel processing unit configured to process a raw fuel to produce a fuel gas for the fuel cell; an oxidant gas heating unit configured to heat an oxidant gas for the fuel cell; a combustor configured to combust the raw fuel to produce a combustion gas for use in heating the fuel processing unit and the oxidant gas heating unit; a supply control unit configured to, during a warm-up of the fuel cell, control supply of the raw fuel to the fuel processing unit and the combustor; and a power generation control unit configured to control a power generation state during the warm-up of the fuel cell. When the fuel cell has reached a power generation available temperature, the power generation control unit is configured to cause the fuel cell to perform power generation, and the supply control unit is configured to supply the raw fuel to both the fuel processing unit and the combustor.
    Type: Application
    Filed: September 29, 2017
    Publication date: August 20, 2020
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Tetsushi NODA, Tatsuya YAGUCHI, Hayato CHIKUGO
  • Publication number: 20200212458
    Abstract: A fuel cell system includes: a fuel cell; a fuel treating unit configured to treat a raw fuel and generate fuel gas for the fuel cell; an oxidant-gas heater configured to heat oxidant gas for the fuel cell; a combustor configured to combust the raw fuel and generate combustion gas to heat the fuel treating unit and the oxidant-gas heater; and a control unit configured to control supplying of the raw fuel to the fuel treating unit and the combustor at the time of warming-up of the fuel cell. The control unit supplies the raw fuel to both of the fuel treating unit and the combustor when the fuel treating unit is at an operable temperature of the fuel treating unit.
    Type: Application
    Filed: August 1, 2017
    Publication date: July 2, 2020
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Tetsushi NODA, Hayato CHIKUGO, Tatsuya YAGUCHI
  • Patent number: 10686204
    Abstract: A solid oxide fuel cell system includes a primary fuel supply passage for supplying fuel, plural fuel cell stacks each uses a solid oxide fuel cell and that are provided in line on the primary fuel supply passage and includes at least a first fuel cell stack and a second fuel cell stack, a first reformer that is provided on an upstream side from the first fuel cell stack on the primary fuel supply passage and reforms the fuel by utilizing endothermic reforming reactions, a second reformer that is provided between the first fuel cell stack and the second fuel cell stack on the primary fuel supply passage and reforms the fuel by utilizing endothermic reforming reactions and exothermic methanation reactions, and a secondary fuel supply passage connected between the first fuel cell stack and the second reformer.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: June 16, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Maki Hoshino, Tatsuya Yaguchi
  • Publication number: 20200168933
    Abstract: According to a control method of controlling a fuel cell system, the fuel cell system including a solid oxide fuel cell that is supplied with an anode gas and a cathode gas to generate electric power, a fuel processor that at least reforms fuel to generate the anode gas and supplies the generated anode gas to the fuel cell, and a combustor that combusts the supplied fuel to perform warming of the fuel processor, the method is conducted when warming is performed at least at starting-up of the system.
    Type: Application
    Filed: July 31, 2017
    Publication date: May 28, 2020
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Tatsuya YAGUCHI, Hayato CHIKUGO
  • Patent number: 10547068
    Abstract: A solid oxide fuel cell system includes a solid oxide fuel cell, a combustor disposed in a cathode gas supply line of the fuel cell, a fuel supply unit configured to supply a fuel to the combustor, and a cathode gas supply unit configured to supply a cathode gas to the cathode gas supply line. The system further includes a stop control unit configured to perform a stop control of the fuel cell, which includes a control that sets a cathode gas supply amount from the cathode gas supply unit to a predetermined amount and a control that supplies the fuel from the fuel supply unit in a supply amount corresponding to the cathode gas supply amount.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: January 28, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Tetsushi Yamazaki, Tatsuya Yaguchi, Takeshi Shiomi
  • Publication number: 20190379071
    Abstract: The present invention concerns a starting burner (100a; 100b) for a fuel cell system (1000a; 1000b), having a catalyst (10) with a catalyst inlet (11) and a catalyst outlet (12), a catalyst area (13) being formed between the catalyst inlet (11) and the catalyst outlet (12), and the catalyst area (13) being surrounded by a catalyst wall (14) in a passage direction (D) from the catalyst inlet (11) to the catalyst outlet (12), and an operating fluid guide section (20) for supplying an operating fluid (F1) to the catalyst inlet (11), wherein the operating fluid guide section (20) is arranged outside the catalyst (10) at least in sections along the catalyst wall (14). The invention also concerns a fuel cell system (1000) with the starting burner (100a; 100b) and a method for heating a service fluid (F1) in the fuel cell system (1000a; 1000b).
    Type: Application
    Filed: February 8, 2018
    Publication date: December 12, 2019
    Applicants: AVL List GmbH, Nissan Motor Co., Ltd.
    Inventors: Jörg MATHÉ, Michael REISSIG, Thomas KRAUS, Julian MAKINSON, Bernd BEITER, Vincent LAWLOR, Tatsuya YAGUCHI, Tetsushi NODA, Takeshi SHIOMI
  • Publication number: 20190379069
    Abstract: The invention relates to a fuel cell system (100) having a fuel supply unit (8) and fuel cells (1, 2) having a cathode (4, 4?) and an anode (3, 3?), wherein the cathode (4, 4?) features a cathode feed line (40), the anode (3, 3?) features an anode feed line (30), and the flow in the anode (3, 3?) is connected with the flow in the fuel supply unit (8) via the anode feed line (30), in which a reforming apparatus (13) is arranged, and having an anode exhaust line (6) provided with at least one burner apparatus (22, 23).
    Type: Application
    Filed: November 29, 2017
    Publication date: December 12, 2019
    Applicants: AVL List GmbH, Nissan Motor Co., Ltd.
    Inventors: Michael REISSIG, Bernd REITER, Jörg MATHÉ, Thomas KRAUSS, Stefan PLANITZER, Vincent LAWLOR, Jürgen RECHBERGER, Masanari YANAGISAWA, Shinichi MIYAZAKI, Hayato CHIKUGO, Tadaki MANO, Tatsuya YAGUCHI
  • Patent number: 10439237
    Abstract: a fuel cell system comprises a solid oxide fuel cell which generates a power by receiving a supply of an anode gas and a cathode gas, the system further comprising: a fuel tank to store a liquid fuel which is to become the anode gas, an anode gas supply path connecting the fuel tank and an anode electrode of the fuel cell, an exhaust gas burner to burn an anode off-gas and a cathode off-gas, both gases been discharged from the fuel cell, a collector which is communicated to the fuel tank and collects the fuel which is vaporized in the fuel tank, and a fuel supply path which connects the collector with the exhaust gas burner. When the fuel cell system is stopped, the fuel collected by the collector is supplied to the exhaust gas burner via the fuel supply path.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: October 8, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Tatsuya Yaguchi
  • Patent number: 10374241
    Abstract: The present invention comprises a plurality of fuel cells connected to each other in series, and a reformer configured to reform raw fuel, wherein reformed fuel by the reformer is supplied to a first stage of the plurality of fuel cells, and the fuel cell on the first stage is provided with a methane reaction suppressing function which suppresses reaction of methane included in the reformed fuel to a larger extent than at least one fuel cell on a second and later stages. Suppressing temperature drop due to endothermic reaction in the fuel cell on the first stage can improve the efficiency of electric power generation of the fuel cell system having the plurality of fuel cells arranged in series.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: August 6, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Tatsuya Yaguchi, Motohisa Kamijo
  • 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