Nissan Motor Company Limited

Canon Kabushiki Kaisha

Avl List Gmbh

Tatsuya Yaguchi

Keiko Kushibiki

Hayato Chikugo

Yasushi Nakajima

Shigeo Ibuka

Shinichi Miyazaki

Masashi Sato

Tetsushi Noda

Kazufumi Takeuchi

Taisuke Shiraishi

Takeshi Shiomi

Takehiro Yoshida

Hiroki Sakamoto

Hiroyuki Wada

Kenta Suzuki

Hirokazu Komatsu

Tadaki Mano

Koichi Tanaka

Michael Reissig

Jörg Mathé

Vincent Lawlor

Bernd Reiter

Thomas Krauss

Hiroshi Sakurai

Yutaka Inoue

Yoshiteru Yasuda

Masaharu Hatano

Mitsunori Kumada

Hiromichi Miwa

Kenji Ohara

Motohisa Kamijo

Susumu Maeshima

Daiki Tanaka

Masanari Yanagisawa

Akinobu Moriyama

Maki Hoshino

Julian Makinson

Yu Owada

Hirofumi Maeda

Yuko Ichikawa

Stefan Planitzer

Jürgen Rechberger

Tetsushi Yamazaki

Horoki Sakamoto

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.

Fuel cell system and method of operating the same

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.

Fuel cell system and fuel cell system control method

The present invention concerns a starting burner () for a fuel cell system (), having a catalyst () with a catalyst inlet () and a catalyst outlet (), a catalyst area () being formed between the catalyst inlet () and the catalyst outlet (), and the catalyst area () being surrounded by a catalyst wall () in a passage direction (D) from the catalyst inlet () to the catalyst outlet (), and an operating fluid guide section () for supplying an operating fluid (F) to the catalyst inlet (), wherein the operating fluid guide section () is arranged outside the catalyst () at least in sections along the catalyst wall (). The invention also concerns a fuel cell system () with the starting burner () and a method for heating a service fluid (F) in the fuel cell system ().

Starting burner for a fuel cell system

A fuel cell system comprising: a fuel cell;

Fuel cell system with anode degradation reduction control

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. The fuel cell system includes a controller configured to, in a warm-up operation to perform a warm-up of the reformer and a warm-up of the fuel cell, control at least one of the heat source device and the fuel cell heating device based on the temperature of the reformer and the temperature of the fuel cell to adjust at least one of a heating amount of the off-gas and a heating amount of the air by the heating gas.

Fuel cell system and method for warming up fuel cell system

The invention relates to a fuel cell system () having a fuel supply unit () and fuel cells () having a cathode (') and an anode (&#x2032;), wherein the cathode (&#x2032;) features a cathode feed line (), the anode (&#x2032;) features an anode feed line (), and the flow in the anode (&#x2032;) is connected with the flow in the fuel supply unit () via the anode feed line (), in which a reforming apparatus () is arranged, and having an anode exhaust line () provided with at least one burner apparatus (). According to the invention, a first heat exchanger () is provided in the cathode feed line (), and a second heat exchanger (), which is arranged upstream of the reforming apparatus (), is provided in the anode feed line (), wherein the anode exhaust line () divides downstream of the burner apparatus () into a first anode exhaust subsidiary line () and a second anode exhaust subsidiary line (), each of which is connected to an exhaust gas outlet (), and wherein the first anode exhaust subsidiary line () leads through a warm side of the first heat exchanger (), and the second anode exhaust subsidiary line () leads through a warm side of the second heat exchanger (), and the vaporizing arrangement () is able to be heated via the second anode exhaust subsidiary line ().

Fuel cell system

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.

Fuel cell system and method for controlling fuel cell system

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. The method comprising: a cathode gas supply step of supplying the cathode gas to the fuel processor; a determining step of determining whether a temperature of gas passing through the fuel processor is higher than a temperature at which reforming is possible; a cathode gas decreasing step of decreasing a supplied amount of the cathode gas to the fuel processor when it is determined that the temperature of the gas is higher than the temperature at which reforming is possible; and a fuel supply step of supplying the fuel to the fuel processor.

Fuel cell system control method and fuel cell system

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.

Fuel cell system and fuel cell system warm-up method

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.

Solid oxide fuel cell system

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.

Solid oxide fuel cell system and method of controlling the same

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.

Fuel cell system and control of collector and burner when stopped

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.

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.

In a fuel cell system, a preceding-stage fuel cell and a following-stage fuel cell are connected via a fuel flow path. The fuel cell system includes a reformer that supplies reformed gas to the preceding-stage fuel cell; an acquisition unit that acquires the amount of heat generation and the amount of heat absorption of the preceding-stage fuel cell; and a control unit that controls at least one of the amount of current of the preceding-stage fuel cell, the flow rate of air to be supplied to the reformer, and the temperature of the preceding-stage fuel cell if the amount of heat absorption acquired by the acquisition unit is larger than the amount of heat generation acquired by the acquisition unit.

Fuel cell system and fuel cell control method

Growing community of inventors

Yokohama, Japan

Tatsuya Yaguchi