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Including heat exchange means

Subclass of:

429 - Chemistry: electrical current producing apparatus, product, and process

429400000 - FUEL CELL, SUBCOMBINATION THEREOF, OR METHOD OF MAKING OR OPERATING

429428000 - Process or means for control of operation

429433000 - Arrangement or process including thermal control

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
429437000 Liquid cooling 36
429439000 Gas cooling 17
429435000 Plural heat exchangers 15
429436000 Heat exchange means external to fuel cell 8
429441000 Heating by combustion 6
429440000 Including use of waste heat from fuel cell or afterburner 5
20110053026FUEL CELL SYSTEM - A fuel cell system comprising: an anode gas flow path supplied with an anode gas; a cathode gas flow path supplied with a cathode gas; a fuel cell generating electricity by the anode gas being supplied to the anode gas flow path and the cathode gas being supplied to the cathode gas flow path; an anode gas supplying unit supplying the anode gas to the anode gas flow path; a blowdown valve ejecting fluid from inside the anode gas flow path towards an exterior; and a control unit which controls the anode gas supplying unit and the blowdown valve, supplies the anode gas from the anode gas supplying unit to the anode gas flow path, and performs a periodic fluid substitution by opening the blowdown valve periodically, wherein the control unit comprises a low temperature condition determination unit.03-03-2011
20110177416COOLING SYSTEM - A cooling system is provided. The cooling system includes: a fuel cell; a cooling circuit configured to circulate a coolant medium to cool the fuel cell; an air conditioning circuit configured to circulate the coolant medium, the air conditioning circuit having a heat exchanger to execute heat exchange between the coolant medium and air to be sent to a room; a switching unit configured to switch between a connected state and a disconnected state; and a controller configured to control operation of the cooling system, wherein when the controller switches a state of the cooling system from the disconnected state to the connected state, irrespective of conditions in the cooling system, the controller executes operation of the cooling system in a flow rate control mode whereby the ratio (L07-21-2011
20110053027Multi-Stream Heat Exchanger for a Fuel Cell System - A multi-stream heat exchanger includes at least one air preheater section, at least one cathode recuperator section, and at least one anode recuperator section, wherein each section is a plate type heat exchanger having two major surfaces and a plurality of edge surfaces, a plurality of risers through at least some of the plates, and a plurality of flow paths located between plates. The cathode recuperator section is located adjacent to a first edge surface of the anode recuperator, and the air preheater section is located adjacent to a second edge surface of the anode recuperator section.03-03-2011
20110159394FUEL CELL COGENERATION SYSTEM - A fuel cell cogeneration system includes: a heat recovery channel in which a first shutoff valve, a heat-recovery heat exchanger configured to recover exhaust heat of a fuel cell, a second shutoff valve and a hot water storage tank are sequentially and circularly connected by a heat recovery pipe. A heat recovery channel pressure release valve is provided in the heat recovery pipe connecting the first shutoff valve, the second shutoff valve and the heat-recovery heat exchanger. The heat recovery channel pressure release valve is configured to open when internal pressure of the heat recovery pipe closer to the heat-recovery heat exchanger than the first shutoff valve and the second shutoff valve exceeds predetermined pressure.06-30-2011
20130196243HIGH TEMPERATURE FUEL CELL SYSTEM - A fuel cell system for use with an endothermic fuel generator including a fuel cell stack having a primary fuel cell stack having a first thermal mass and a secondary fuel cell stack having a second thermal mass smaller than the first, the fuel cell system further including a first thermal coupling mechanism configured to thermally couple waste heat from the secondary fuel cell stack to the primary fuel cell stack, and a second thermal coupling mechanism configured to thermally couple waste heat from the fuel cell stack to the endothermic fuel generator.08-01-2013
Entries
DocumentTitleDate
20120183875FUEL CELL SYSTEM - Provided is a fuel cell system that is capable of suppressing temperature change of the fuel cell under a low temperature environment after the operation has stopped, suppressing freezing due to condensation and ensuring a preferable start thereafter. The fuel cell system comprises: a fuel cell that generates electric power through an electrochemical reaction between air and a hydrogen gas; a gas supply section that supplies air and the hydrogen gas to an air supply path, a fuel supply path and a hydrogen circulation path which are connected to the fuel cell by a compressor and a hydrogen pump; a cooling section that cools the fuel cell by making a cooling path connected to the fuel cell to circulate by a pump the cooling water that is cooled by a radiator; and a control section that performs a scavenging process that scavenges inside the air supply path, the fuel supply path and the hydrogen circulation path by the gas supply section and a cooling process that cools the fuel cell by the cooling section, when it is determined that the fuel cell would be below zero after generation of electric power by the fuel cell has stopped.07-19-2012
20110195329Variable Catalyst Loading Based On Flow Field Geometry - A fuel cell including a membrane electrode assembly composed of a ionically conductive member sandwiched between a pair of electrodes. At least one of the electrodes including a catalyst loading characterized by catalytic activity that varies in proportion to the catalyst loading. Moreover, the fuel cell includes a flow path for supplying gaseous reactants to the electrodes and the catalyst loading is varied according to the flow path geometry.08-11-2011
20120244449CONTAINER ARRANGEMENT FOR A FUEL CELL SYSTEM, AND METHOD FOR INTRODUCING AN ION EXCHANGE MODULE IN A COOLANT CONTAINER - A container arrangement (09-27-2012
20130034789BIPOLAR PLATE ASSEMBLY FOR USE IN A FUEL CELL - A bipolar plate assembly includes a first material and a second material. The second material has an in-plane thermal conductivity greater than the first material. The second material has a width and a thickness. A ratio of the width to the thickness of the second material is between 50 and 400.02-07-2013
20130164647FUEL CELL SYSTEM, MOTOR, AIR COMPRESSOR, PUMP, AND METHOD OF DESIGNING MOTOR - A fuel cell system includes a fuel gas supply/discharge mechanism, an oxidative gas supply/discharge mechanism, and a coolant circulation mechanism that cools a fuel cell. A motor employed in an air compressor of the fuel gas supply/discharge mechanism includes a generally circular cylindrical rotor. The axial length of the rotor is related to its diameter such that the ratio is approximately equal to a maximum value satisfying a relationship: Ta≦Tm, where Ta denotes a permissible torque of the motor, and that Tm denotes a maximum torque for which a request is to be made to the motor.06-27-2013
20130164646FUEL CELL STACK - A fuel cell stack includes a terminal plate, an insulating member, and an end plate at one end of a stack body formed by stacking a plurality of power generation cells. A heat insulating member and the terminal plate are placed in a recess of the insulating member. The heat insulating member is formed by stacking metal plates and metal plates together alternately. The metal plate is formed by cutting the outer end of a first metal separator of the power generation cell into a frame shape and the metal plate is formed by cutting the outer end of a second metal separator of the power generation cell into a frame shape.06-27-2013
20100297515SERIAL CONNECTED FUEL CELL STACK MODULE ASSEMBLY - A large, scalable SOFC system based on modules, which may be connected in series on the cathode gas side. This offers compactness, simple stack/system interface and improved system performance. The modules are designed for manufacturability, well-balanced heat management and high fuel utilisation.11-25-2010
20130022888FUEL CELL COOLING SYSTEM WITH COUPLING OUT OF HEAT - A cooling system (01-24-2013
20110287332END CELL THERMAL BARRIER HAVING VARIABLE PROPERTIES - A fuel cell assembly is disclosed, the fuel cell assembly including a plurality of fuel cell plates arranged in a stack, each fuel cell plate having reactant inlets and outlets and a coolant inlet and outlet; a first terminal plate disposed at a first end of the stack of the fuel cell plates; and a barrier layer disposed between one of the plurality of fuel cell plates and the first terminal plate to provide a thermal barrier therebetween, wherein the barrier layer includes a first portion having a first thermal conductivity and a second portion having a second thermal conductivity.11-24-2011
20110143247Fuel cell stack and fuel cell system including the same - A fuel cell stack and a fuel cell system, the fuel cell stack including a plurality of membrane electrode assemblies, the membrane electrode assemblies being configured to generate electrical energy by an electrochemical reaction of a fuel and an oxidizer; and a plurality of bipolar plates positioned adjacent to the membrane electrode assemblies and between the membrane electrode assemblies, the bipolar plates including a fuel channel at one side thereof and an oxidizer channel at a second, opposite side thereof, wherein the bipolar plates include a plurality of cooling channels penetrating therethrough, the cooling channels having a curvature along a length thereof.06-16-2011
20100279189Fuel cell system - A fuel cell system having uniform temperature field, includes at least one fuel cell stack. The fuel cell stack includes a housing, a fuel cell module, and an air guiding device. The housing defines an internal receiving space, and has an air outlet zone and at least two air inlet zones. The fuel cell module is disposed in the receiving space and includes a plurality of membrane electrode assemblies are disposed at intervals along a first sidewall toward a second sidewall on a plane of the receiving space of the housing. Each of the membrane electrode assemblies corresponds to at least one of the air inlet zones. The air guiding device is disposed on of the housing for generating airflows via the air inlet zones into the housing. The airflows flow along cathode surfaces of the membrane electrode assemblies and finally flow out of the housing via the air outlet zone.11-04-2010
20100143815FUEL CELL - A fuel cell system which provides stable cell outputs at startup. The fuel cell system comprises: a fuel cell stack including a laminate formed by combining a membrane electrode assembly composed of an electrolyte membrane, an anode jointed to one side of the electrolyte membrane, and a cathode joined to the other side of the electrolyte membrane, with a fuel channel plate having a fuel channel for supplying a fuel to the anode, an oxidant channel plate having an oxidant channel for supplying an oxidant to the cathode, and a coolant channel plate having a coolant channel for a coolant to flow through; piping and a circulation pump necessary for cooling the coolant exhausted from the fuel cell stack before putting the coolant into the fuel cell stack for circulation; a fuel humidifier which humidifies the fuel by heat exchange with the coolant; an air humidifier which humidifies the air by heat exchange with the coolant; and a control unit which continues the circulation of the coolant in a system stopping process until a predetermined cooling stop condition holds, and stops power generation of the fuel cell when the predetermined cooling stop condition holds.06-10-2010
20110171551FUEL CELL ASSEMBLY WITH A MODULAR CONSTRUCTION - There is disclosed a fuel cell assembly comprising: at least one horizontally arranged fuel cell stack that has numerous fuel cells, each comprising an anode, a cathode and an electrolyte situated between the anode and the cathode; combustible gas supply means for supplying combustible gas to the anodes of the fuel cells; anode gas withdrawal means for withdrawing the anode exhaust gas from the anodes; cathode gas supply means for supplying cathode gas to the cathodes of the fuel cells; cathode gas withdrawal means for withdrawing the cathode exhaust gas from the fuel cells; and recirculation means for recirculating at least one part of the anode exhaust gas and/or the cathode exhaust gas to cathodes of the fuel cells. The fuel cell assembly according to the invention is characterised in that the assembly consists of modular sub-assemblies that are independent of one another and that communicate with one another via standardised interfaces. A first sub-assembly comprises the fuel cell stack, the combustible gas supply means and the anode gas withdrawal means, a second sub-assembly comprises the cathode gas supply means together with a cathode gas distributor, a start-up heater and a heat exchanger, a third sub-assembly comprises a cathode exhaust gas collector, a cathode exhaust gas line, a gas mixer for mixing fresh air, the cathode exhaust gas and the anode exhaust gases, a catalytic burner and a collection line of the recirculation means, and a fourth sub-assembly comprises a delivery unit of the recirculation means.07-14-2011
20120295177FUEL CELL - A cell unit of a fuel cell includes a first membrane electrode assembly, a first metal separator, a second membrane electrode assembly, and a second metal separator. Resin frame members are provided at the outer ends of the first and second membrane electrode assemblies. Coolant connection channels including a plurality of grooves is formed in each of the resin frame members. The grooves of the coolant connection channels of the cell unit and grooves of coolant connection channels of a cell unit that is adjacent to the cell unit in the stacking direction are offset from each other, and are not overlapped with each other in the stacking direction.11-22-2012
20120295176FUEL CELL - A cell unit of a fuel cell includes a first membrane electrode assembly, a first metal separator, a second membrane electrode assembly, and a second metal separator. Resin frame members are provided at outer ends the first and second membrane electrode assemblies. A dual seal provided on the resin frame member includes an outer seal member and an inner seal member. A front end of the outer seal member contacts the resin frame member, and a front end of the inner seal member contacts the outer end of the first metal separator. The outer seal member and the outer seal member have the same height.11-22-2012
20110269042MULTIPLE STACK FUEL CELL SYSTEM WITH SHARED PLENUM - A multi-stack fuel cell system is disclosed where multiple fuel cell stacks can be efficiently connected together. The fuel cell system includes a plurality of fuel cell modules include a sealed planar fuel cell stack that has internal manifold channels for transport of fuel and air to fuel cells within the stack and transport of tail gas and spent air away from fuel cells within the stack. Each of the fuel cell stacks is mounted on a base manifold, and the base manifold has side openings in fluid communication with the stack internal manifold channels. The side openings on the base manifold are configured so that the modules can be efficiently connected together.11-03-2011
20110143248FUEL CELL - A fuel cell comprises: multiple unit cells stacked upright in a vertical direction or stacked in a vertically inclined orientation; an insulating plate arranged on a vertically upper-side end of the stacked multiple unit cells; a cooling medium supply manifold arranged to distribute a supply flow of a cooling medium into the multiple unit cells and a cooling medium discharge manifold arranged to join together discharged flows of the cooling medium from the multiple unit cells; and a de-airing passage formed to release a gas accumulated in either the cooling medium supply manifold or the cooling medium discharge manifold, wherein the cooling medium supply discharge manifold and the cooling medium discharge manifold are respectively connected to a cooling medium supply piping and a cooling medium discharge piping on a vertically lower-side end of the fuel cell, and the de-airing passage is formed such that a portion of the de-airing passage is made in the insulating plate wherein the portion of the de-airing passage extends in a direction perpendicular to a stacking direction of the unit cells, and the de-airing passage is connected to either the cooling medium discharge manifold or the cooling medium supply manifold on a vertically upper end side of the cooling medium discharge manifold or the cooling medium supply manifold.06-16-2011
20100167148TEMPERATURE CONTROL SYSTEM FOR FUEL CELL - Provided is a temperature control system which can suppress a cell voltage fluctuation even in the case of starting under a low-temperature environment. The temperature control system for a fuel cell according to the present invention circulates a heat transfer medium through the fuel cell to control the temperature of the fuel cell. The system is characterized by including circulation control means for circulating, through the fuel cell, the heat transfer medium having a flow rate larger than that for a normal operation during a low-temperature operation. According to such a constitution, the flow rate of the heat transfer medium (cooling water or the like) for low-temperature start is set to a flow rate larger than that of the heat transfer medium for normal start, so that a temperature fluctuation among cells can be suppressed even in the case of warm-up for the low-temperature start, and as a result, the cell voltage fluctuation can be suppressed.07-01-2010
20100178576Fuel Cell with Integrated Fluid Management - A fuel cell (FC) comprising a stack (A) of bipolar plates and ion exchange membranes arranged alternately, the stack (A) being clamped between two endplates (B and C), the stack (A) comprising feed and return ducts for the fluids required for the operation of the cell, said fluids comprising at least one fuel gas, the ducts communicating with a fluid management system comprising elements for controlling certain operating parameters, elements for recycling gases not consumed by the cell and elements for eliminating the water produced by the cell, said installation comprising connections for feeding gases to the cell, in which the fluid management system is at least partly integrated inside one of the endplates.07-15-2010
20100178577FUEL CELL SYSTEM - A fuel cell system (07-15-2010
20100167149FUEL CELL SYSTEM - A temperature sensor 07-01-2010
20100221629FUEL CELL SYSTEM - A fuel cell system including a PEFC stack in an inner space of a housing includes a sheathed heater, arranged in the inner space, for heating the inner space; the sheathed heater is placed on a bottom face side of the inner space of the housing, while a gap is provided between the bottom face and the sheathed heater; a mounting plate for mounting an inner device including the PEFC stack is provided in the inner space of the housing; and the sheathed heater is arranged between the mounting plate and the bottom face of the inner space of the housing.09-02-2010
20100239931FUEL CELL - A fuel cell includes a cathode side separator. An oxygen-containing gas flow field is formed on a surface of the cathode side separator. The oxygen-containing gas flow field includes an inlet channel having a plurality of flow grooves connected to the oxygen-containing gas supply passage, an outlet channel having a plurality of flow grooves connected to the oxygen-containing gas discharge passage, and an intermediate channel having flow grooves with both ends connected to the inlet channel and the outlet channel respectively. The flow grooves of the outlet channel are longer than the flow grooves of the inlet channel, and the flow grooves of the outlet channel are narrowed toward the oxygen-containing gas discharge passage.09-23-2010
20120196200SOLID OXIDE FUEL CELL DEVICE - A fuel cell device including an elongate ceramic substrate having an exterior surface defining an interior ceramic support structure having non-active end regions and an active zone therebetween that includes electrodes in opposing relation with an electrolyte therebetween for undergoing a fuel cell reaction when supplied with heat, fuel and oxidizer. The electrolyte is a ceramic co-fired with the interior ceramic support structure. The end regions lack opposing electrodes and extend away from the active zone to dissipate heat. Gas inlets are positioned in the end regions with respective outlets in either the active zone or opposite end region, and elongate passages are coupled therebetween at least partially extending in opposing relation through the active zone. The electrodes are positioned adjacent the gas passages in the active zone and are electrically connected to exterior contact surfaces on the exterior surface of the end regions for external connection to voltage nodes.08-02-2012
20100221628ATTACHMENT FOR A FUEL TANK OF A FUEL CELL POWERED SYSTEM AND ELECTRONIC PORTABLE DEVICE EQUIPPED THEREWITH - An attachment for a fuel tank of a fuel cell powered system is described. The attachment thermally conducts heat generated from an electronic component to the fuel tank. The attachment further affixes to the electronic component by a securing portion. In one aspect, the attachment is comprised in a fuel cell powered electronic device. In another aspect, the attachment is integral to the fuel tank.09-02-2010
20110117464FUEL CELL SYSTEM AND METHOD FOR INFLUENCING THE THERMAL BALANCE OF A FUEL CELL SYSTEM - The invention relates to a fuel cells system (05-19-2011
20110129752CONNECTION OF CHEMICAL OR THERMAL REACTORS - The invention relates to the connection of one or more thermal and/or chemical reactors, particularly fuel cells, to an adjacent component or between two reactors or between two components, the reactors having a preferred operating temperature range, particularly between 400 and 1100° C., characterized in that said connection is provided by a connecting element that hardens at room temperature (normal state, normal conditions) and becomes plastic at the operating temperature.06-02-2011
20100297516NOVEL STACK DESIGN AND ASSEMBLY OF HIGH TEMPERATURE PEM FUEL CELL - A current producing cell has anode flow plates 11-25-2010
20100310959FUEL CELL SYSTEM - A fuel cell system that can be maintained easily includes a base section fixed on an installation surface, support members installed on the base section, a partition wall attached on the base section and partitioning the space over the base section, and an outer panel detachably secured to the partition wall and the base section.12-09-2010
20100304261FUEL CELL DESIGN WITH AN INTEGRATED HEAT EXCHANGER AND GAS HUMIDIFICATION UNIT - A fuel cell assembly having a flow distribution subassembly that comprises four sets of flow channels, the first set facing an anode for distribution of a fuel reactant to said anode, the second set facing a cathode for distribution of an oxidant to said cathode, the third set in flow communication with said second set and in heat transfer relation with at least one of said anode and said cathode, and the fourth set receiving a coolant different from said oxidant.12-02-2010
20100310958FUEL CELL STACK - Coolant supply passages and coolant discharge passages, for example, two respectively thereof, are disposed on upper and lower side portions of a first end plate of a fuel cell stack. Grooves are formed on a surface of the first end plate for establishing communication between each of the coolant supply passages and the coolant discharge passages. Air, which is introduced upwardly of the coolant discharge passages, is discharged to the coolant supply passages.12-09-2010
20110033766METHOD FOR DETERMINING IF A FUEL CELL STACK IS OVERHEATING USING STACK END PLATE TEMPERATURE SENSORS - A method for determining whether a fuel cell stack is overheating. The method measures the temperature of end cells in the stack using end cell temperature sensors, and calculates an average end cell temperature based on the end cell temperature measurements. The method also measures the temperature of a cooling fluid being output from the fuel cell stack. The method determines if any of the measured end cell temperatures are outlying by comparing each end cell temperature measurement to the average. The method determines that the cooling fluid outlet temperature sensor has possibly failed if the cooling fluid outlet temperature is greater than the average end cell temperature and the cooling fluid outlet temperature minus the average end cell temperature is greater than a predetermined temperature value.02-10-2011
20100143814FUEL CELL STACK FLOW HOOD - The present invention is concerned with improved fuel cell stack assemblies, and methods of operation of a fuel cell stack assembly, particularly with improved gas flow and thermal management.06-10-2010
20100221627HEAT TRANSFER CONTROLLING MECHANISM AND FUEL CELL SYSTEM HAVING THE HEAT TRANSFER CONTROLLING MECHANISM - A heat transfer controlling mechanism and a fuel cell system, which allow working fluid to flow in a predetermined direction in a loop-shaped flow path without a back flow, having a simple structure independent of the orientation during use, low power consumption, and efficient heat transfer and size reduction. The mechanism includes a vaporizing portion, a condensing portion, and a loop-shaped flow path connecting the vaporizing and the condensing portions so as to seal working fluid. The mechanism transports heat by vaporizing the fluid in the vaporizing portion and condensing the fluid in the condensing portion to control heat transfer. The mechanism further includes a gas passage suppressing portion on one side in the flow path, for allowing liquid, but not gas, to pass therethrough and a liquid passage suppressing portion on the other side in the flow path, for allowing gas, but not liquid, to pass therethrough.09-02-2010
20110097638FUEL CELL AND FUEL CELL SYSTEM - A fuel cell includes: an electrolyte membrane; a first reactive gas channel that is provided on a first surface side of the electrolyte membrane; a second reactive gas channel that is provided on a second surface side of the electrolyte membrane; and a coolant channel. The coolant channel is configured such that a flow direction of the first reactive gas flowing in the first reactive gas channel is opposite to a flow direction of the second reactive gas flowing in the second reactive gas channel, and a downstream portion of the flow of at least one of the first and second reactive gases, in a plane of the electrolyte membrane, is cooled from the central portion within the plane.04-28-2011
20110097639Fuel cell coolant bubble control - To mitigate bubble blockage in water passageways (04-28-2011
20120148930Cooling Device for a Functional System - A cooling device (06-14-2012
20100310957FUEL CELL - An oxygen-containing gas flow field is formed on a surface of a cathode side metal separator of a fuel cell. The oxygen-containing gas flow field is connected between an oxygen-containing gas supply passage and an oxygen-containing gas discharge passage. A coolant flow field is formed on the other surface of the cathode side metal separator, on the back of the oxygen-containing gas flow field. The cathode side metal separator has linear guide ridges protruding from an intermediate height area toward the oxygen-containing gas flow field to form a continuous guide flow field, and bosses protruding from the intermediate height area toward the coolant flow field to form an embossed flow field.12-09-2010
20100304260FUEL CELL SYSTEM AND METHOD OF CONTROLLING FUEL CELL SYSTEM - A fuel cell stack includes a heat exchange unit that performs heat exchange between a gas mixture containing source hydrogen and a circulating gas and cooling water used for controlling the temperature of the fuel cell stack. A system controller adjusts the temperature of the cooling water by controlling a temperature control unit on the basis of the temperature of source hydrogen flowing into a junction at which the source hydrogen and a circulating gas are mixed such that the temperature of a source/recirculated hydrogen mixture that is mixed at the junction and that is supplied to the fuel cell stack is kept within a managed temperature range.12-02-2010
20100330448Fuel cell power plant having improved operating efficiencies - A fuel cell power plant (12-30-2010
20100330449FUEL CELL SYSTEM AND STACK THEREOF - A fuel cell system includes a fuel supply, an air supply, a plurality of unit cells being stacked, and a stack. The stack includes: a plurality of unit cells, each comprising separators and a membrane assembly (MEA) disposed between the separators; a fuel inlet configured to introduce a fuel to the unit cell; an unreacted fuel outlet configured to emit unreacted fuel from the stack; a fuel bypass path; a fuel distribution path configured to distribute the fuel to each of the unit cells; and an unreacted fuel inducing path configured to channel the unreacted fuel to the unreacted fuel outlet.12-30-2010
20100285380FUEL CELL SYSTEM - A cell stack pair (11-11-2010
20110136029FUEL CELL AND TEMPERATURE MEASUREMENT METHOD - A fuel cell and a temperature measurement method capable of directly measuring average temperature of a power generation unit and preventing dropout of a temperature detecting device are provided. A cathode plate for fixing the position of a power generation unit is set to be in contact with the power generation unit in a heat-transfer fashion and is made of an electric conductor or a semiconductor. When the temperature changes accompanying power generating operation of the power generation unit, the temperature of the cathode plate which is in contact with the power generation unit in a heat-transfer fashion changes. According to the temperature change, the resistance value changes. The resistance value is detected by using a resistance voltage dividing circuit having the cathode plate and resistors. By obtaining the temperature coefficient of the cathode plate in advance, the average temperature of the entire power generation unit is measured from the resistance value of the cathode plate.06-09-2011
20110117465FUEL CELL - Disclosed is a fuel cell (05-19-2011
20110189572FUEL CELL SYSTEM WITH FLAME PROTECTION MEMBER - A solid oxide fuel cell system includes a first fuel cell tube, a flame tip protection member and a current conduction member. The first fuel cell tube has a flame end. The flame end has exit opening. The fuel cell tube is configured to deliver combustible gas to the flame tip region generating a flame kernel. The flame protection member is configured to inhibit at least one of mass transfer and heat transfer between the fuel cell tube and the flame tip region. The current conduction member is disposed through the exit opening of the flame end of the first fuel cell tube.08-04-2011
20110070514Device and method for determining the operating parameters of individual fuel cells or short stacks of fuel cells - The invention relates to a device and a method for determining the operating parameters of individual cells or short stacks of fuel cells, preferably of medium-temperature or high-temperature fuel cells.03-24-2011
20120301805FUEL CELL FABRICATION USING PHOTOPOLYMER BASED PROCESSES - A fuel cell component is provided, including a substrate disposed adjacent at least one radiation-cured flow field layer. The flow field layer is one of disposed between the substrate and a diffusion medium layer, and disposed on the diffusion medium layer opposite the substrate. The flow field layer has at least one of a plurality of reactant flow channels and a plurality of coolant channels for the fuel cell. The fuel cell component may be assembled as part of a repeating unit for a fuel cell stack. A method for fabricating the fuel cell component and the associated repeating unit for the fuel cell is also provided.11-29-2012
20120003558FUEL CELL DEVICE AND SYSTEM - The present invention relates to a fuel cell system. A hot zone chamber has a wall thickness T and a heat source coupled thereto. An elongate fuel cell device is positioned with a first lengthwise portion within the hot zone chamber, a second lengthwise portion outside the hot zone chamber, and a third lengthwise portion of length T within the chamber wall. The third portion has a maximum dimension L in a plane transverse to the length where T≧½ L.01-05-2012
20110165488FUEL CELL SYSTEM AND HEATED PRESSURE SENSOR - A fuel cell system may include a fuel cell stack, a manifold in fluid communication with the stack, and a pressure sensor. The pressure sensor may include a housing defining a chamber in fluid communication with the manifold, a pressure sensing element disposed within the chamber, and a heating element disposed within the chamber.07-07-2011
20110091784FUEL CELL SYSTEM - An end plate is joined to a fuel cell stack. A first piping unit and a second piping unit are attached to the end plate. The first piping unit has a first attachment base, to which a fuel gas supply pipe, a first oxidation off-gas discharge pipe, and a coolant discharge pipe are coupled. The second piping unit has a second attachment base, to which an oxidation gas supply pipe, a coolant supply pipe, and a discharge pipe are coupled. The discharge pipe is joined to a discharge cylinder coupled to the first oxidation off-gas discharge pipe. The oxidation gas supply pipe and the coolant supply pipe are integrated with each other. Also, the first oxidation off-gas discharge pipe and the coolant discharge pipe are integrated with each other.04-21-2011
20110104581Heat Controllable Visualization Apparatus for Transparent PEMFC - Provided is a visualization apparatus for a transparent PEMFC using a transparent window having conditions approximating a real PEMFC. More specifically, the present invention includes a heat-exchange passage heat exchanging a transparent plate of a visualization apparatus with a current collector plate in order to control heat. In order to achieve the above object, the present invention includes: current collector plates each provided at both surfaces of a membrane electrode assembly of a fuel cell and formed with a channel in which reaction gas and products flow; transparent plates provided at an outer surface of the current collector plates and provided with a heat-exchange passage having a fluid flowing therein to be heat-exchanged with the current collector plates; and fixing frames having a visualization window for observing the current collector plates and provided at the outer side of the transparent plates.05-05-2011
20100248056FUEL CELL ASSEMBLY - A fuel cell apparatus (A09-30-2010
20120077103FUEL CELL, METHOD FOR OPERATING FULL CELL AND FUEL CELL SYSTEM - In a fuel cell stack, gas channels and heat medium channels are disposed on one surface and the other surface of one plate, respectively. Gas channels are disposed on the other plate such that they face the gas channels in the one plate. A gas inlet header is disposed at the upper part of the gas channel in the plate and a heat medium inlet header is disposed at the upper part of the heat medium channels such that they face the gas inlet header on the other side. Cooling water as a heat medium is supplied from a heat medium supply manifold hole to a heat medium inlet header. Water vapor in the reaction gas (wet fuel gas) is prevented from being condensed in the inlet area of the gas channels by heating the gas inlet header by heat conduction.03-29-2012
20120251913METHODS AND APPARATUS FOR REFUELING REVERSIBLE HYDROGEN-STORAGE SYSTEMS - A method for refilling a hydrogen reservoir comprising a first hydrogen-storing material comprises establishing a fluid connection between the hydrogen reservoir and a cartridge containing a second hydrogen-storing material. The second hydrogen-storing material releases hydrogen at a pressure sufficient to charge the first hydrogen-storing material. Some embodiments involve heating the second hydrogen-storing material and/or allowing heat to flow between the first and second hydrogen-storing materials.10-04-2012
20120251912HIGH EFFICIENCY, REVERSIBLE FLOW BATTERY SYSTEM FOR ENERGY STORAGE - The present invention relates to a reversible solid oxide electrochemical cell that may operate in two modes: a discharge mode (power generation) and a charge mode (electrolytic fuel production). A thermal system that utilizes a SOFB and is inclusive of selection of operating conditions that may enable roundtrip efficiencies exceeding about 80% to be realized is disclosed. Based on leverage of existing solid oxide fuel cell technology, the system concept is applicable to energy storage applications on the kW to MW scale.10-04-2012
20120178009FUEL CELL SEALING CONFIGURATION - A fuel cell plate includes a structure having opposing sides bounded by a periphery providing at least one edge. Gas flow channels are arranged on the one side and arranged within a perimeter that is spaced inboard from the periphery to provide a first gasket surface between the perimeter and the periphery. Inlet and outlet flow channels are arranged on the other side and extend to the periphery and are configured to provide gas at the at least one edge. Holes extend through the structure and fluidly interconnect the inlet and outlet flow channels to the gas flow channels. In one example, the fuel cell plate is a water transport plate in a fuel cell having external manifolds that supply fluid to the plate.07-12-2012
20120178008FUEL CELL SYSTEM AND METHOD OF CONTROLLING REACTION CONDITION OF FUEL IN FUEL CELL - A target value of each of factors in a fuel cell system is determined based on a correspondence relationship of a change in each of the factors determining reaction conditions of fuel in a fuel cell to a change in an external environment of the fuel cell system, and peripheral devices of the fuel cell affecting the reaction conditions of the fuel in the fuel cell are controlled according to a target value of each of the factors.07-12-2012
20100273077FUEL CELL, FUEL CELL SYSTEM, AND METHOD FOR OPERATING FUEL CELL - A fuel cell of the present invention includes cell blocks (10-28-2010
20100273076FUEL CELL TERMINAL PLATE, METHOD FOR MANUFACTURING THE PLATE, AND FUEL CELL INCORPORATING THE PLATE - A front terminal plate (10-28-2010
20100291455INTEGRATION OF AN ORGANIC RANKINE CYCLE WITH A FUEL CELL - An Organic Rankine Cycle system is combined with a fuel cell system, with the working fluid of the Organic Rankine Cycle system being integrated directly into the cooling system for the fuel cell. The waste heat from the fuel cell is therefore applied directly to preheat and evaporate the working fluid in the Organic Rankine Cycle system to thereby provide improved efficiencies in the system.11-18-2010
20100291456CIRCULATION CHECK FOR FUEL CELL COOLANT - Systems of checking thermal-induced circulation of a coolant in a fuel cell stack are disclosed. The system includes coolant inlet and outlet lines extending from a fuel cell stack. A pump and a radiator are confluently connected to the coolant inlet and coolant outlet lines. In one embodiment, a valve (either check type or automatic type) is provided in the coolant outlet line at the bottom of the fuel cell stack to prevent the flow of cold coolant from the coolant outlet line into the fuel cell stack upon start-up of the fuel cell stack. In another embodiment, a valve (either one-way flow control type or automatic type) is provided in the coolant inlet line at the top of the fuel cell stack. A method of checking thermal-induced circulation of a coolant in a fuel cell stack is also disclosed.11-18-2010
20100291454FORCED AIR FUEL CELL POWER SYSTEM - A portable electricity generation device comprises a plurality of fuel cells, each fuel cell having an anode end with a catalyst facilitating the separation of hydrogen atoms into electrons and protons, a cathode end facilitating the combination of the electrons and protons into water molecules in the presence of oxygen, and a current bearing portion providing a current path for the electrons to traverse. The electricity generation device also includes a fuel storage container for storing a supply of hydrogen and delivering the supply of hydrogen to an anode end of the plurality of fuel cells so as to initiate a flow of the electrons through the current bearing portion. In addition, the portable electricity generation device includes an air moving device configured to direct atmospheric air toward a cathode end of the plurality of fuel cells, wherein the air moving device is positioned to convectively cool the plurality of fuel cells as it supplies atmospheric air to the cathode end.11-18-2010
20100291453FUEL CELL SEPARATOR WITH HEAT CONDUCTING MEMBER OR COOLING FLUID PASSAGES IN A PERIPHERAL REGION OF THE CELL - A fuel cell (11-18-2010
20120258377FUEL CELL - A cell unit of a fuel cell includes a first membrane electrode assembly, a first metal separator, a second membrane electrode assembly, and a second metal separator. Frames are provided at outer circumferences of the first and second membrane electrode assemblies. An oxygen-containing gas supply passage and a fuel gas supply passage, and an oxygen-containing gas discharge passage and a fuel gas discharge passage are provided in one pair of opposite sides of the frames, and a pair of coolant supply passages and a pair of coolant discharge passages are provided in the other pair of opposite sides of the frames at distances from one another.10-11-2012
20100203410FUEL CELL SYSTEM WITH COOLING AND METHOD OF CONTROLLING THE SAME - A fuel cell system includes: a fuel cell that generates an electric power and heat by a reaction of a reaction gas; a heat exchanger; a coolant circuit for a coolant between the fuel cell and the heat exchanger; a coolant circulating pump for circulating the coolant in the coolant circuit; and a drive motor for driving the coolant circulating pump, the coolant receiving and carrying the heat to the heat exchanger by the coolant circuit, the coolant circulating pump, and the drive motor. A rotational speed of the drive motor is controlled according to an upper limit of the rotational speed of the drive motor which may be determined on the basis of a cooling capacity of the heat exchanger, a speed of the vehicle mounting the fuel cell system, a generated electric power, and a flow rate of the reaction gas.08-12-2010
20110003224EVAPORATIVELY COOLED FUEL CELL SYSTEM AND METHOD FOR OPERATING AN EVAPORATIVELY COOLED FUEL CELL SYSTEM - A fuel cell system (01-06-2011
20110045370Aircraft Fuel Cell System - An aircraft fuel cell system (02-24-2011
20120270129HEAT TRANSFER SYSTEM, FLUID, AND METHOD - Disclosed herein is a heat transfer system comprising a circulation loop defining a flow path for a heat transfer fluid, and a heat transfer fluid comprising a liquid coolant, a siloxane corrosion inhibitor of formula R3-Si—[O—Si(R)2]x-OSiR3, wherein R is independently an alkyl group or a polyalkylene oxide copolymer of 1 to 200 carbons, x is from 0 to 100, and further wherein at least one alkyl group and at least one polyalkylene oxide copolymer are present, and a non-conductive polydiorganosiloxane antifoam agent, wherein the conductivity of the heat transfer fluid is less than about 100 μS/cm, and wherein the heat transfer system comprises aluminum, magnesium, or a combination thereof, in intimate contact with the heat transfer fluid.10-25-2012
20100233560FUEL CELL SYSTEM - To quickly and optimally control the water condition and temperature of a fuel cell even when the fuel cell is at a low temperature and in a dry state. If it is determined that a fuel cell is in a dry state and is determined that the fuel cell is at a low temperature, a control device performs low-efficiency power generation. Performing the low-efficiency power generation makes it possible to quickly warm up the fuel cell and bring the cathode water balance of a fuel cell into a plus (wet) state, so that the water condition and temperature of the fuel cell can be quickly and optimally controlled.09-16-2010
20120288779FUEL CELL DEVICE AND SYSTEM - Fuel cell devices and fuel cell systems are provided. In certain embodiments, the fuel cell devices may include one or more active layers containing active cells that are connected electrically in series. In certain embodiments, the fuel cell devices include an elongate ceramic support structure the length of which is the greatest dimension such that the coefficient of thermal expansion has only one dominant axis coextensive with the length. In certain embodiments, a reaction zone is positioned along a first portion of the length for heating to a reaction temperature, and at least one cold zone is positioned along a second portion of the length for operating below the reaction temperature. There are one or more gas passages, each having an associated anode or cathode.11-15-2012
20100167150FUEL CELL SYSTEM - To provide a simple and compact fuel cell system that prevents degradation of the performance of a fuel cell stack due to accumulation of impurities and improves fuel efficiency by reducing discharge of a fuel gas.07-01-2010
20100167147REVERSIBLE FUEL CELL - An electricity storage system comprising a reversible fuel cell having a first electrode and a second electrode separated by an ionically conducting electrolyte, and at least two chambers adapted to hold fuel and/or a reaction product, wherein the system is substantially closed and at least one reactant for discharge is hydrogen or oxygen.07-01-2010
20130017466SOLID OXIDE FUEL CELL DEVICE AND SYSTEM - The invention provides tubular solid oxide fuel cell devices and a fuel cell system incorporating a plurality of the fuel devices, each device including an elongate tube having a reaction zone for heating to an operating reaction temperature, and at least one cold zone that remains at a low temperature below the operating reaction temperature when the reaction zone is heated. An electrolyte is disposed between anodes and cathodes in the reaction zone, and the anode and cathode each have an electrical pathway extending to an exterior surface in a cold zone for electrical connection at low temperature. In one embodiment, the tubular device is a spiral rolled structure, and in another embodiment, the tubular device is a concentrically arranged device. The system further includes the devices positioned with their reaction zones in a hot zone chamber and their cold zones extending outside the hot zone chamber. A heat source is coupled to the hot zone chamber to heat the reaction zones to the operating reaction temperature, and fuel and air supplies are coupled to the tubes in the cold zones.01-17-2013
20110159392COLORANT TREATED ION EXCHANGE RESINS, METHOD OF MAKING, HEAT TRANSFER SYSTEMS AND ASSEMBLIES CONTAINING THE SAME, AND METHOD OF USE - Disclosed is a colorant treated ion exchange resin comprising at least 15% of exchangeable groups comprising at least one of an ion, a Lewis acid, or a Lewis base resulting from a colorant having a pK06-30-2011
20130177827SEPARATOR FOR FUEL CELL, FUEL CELL AND METHOD OF MANUFACTURING FUEL CELL - A separator for fuel cell includes a corrugated portion formed to have a corrugated cross section where a first groove that is concave to a first surface to form a flow path for a first fluid on the first surface and a second groove that is concave to a second surface opposite to the first surface to form a flow path for a second fluid on the second surface are arranged alternately and repeatedly. Each of the second grooves has at least one shallower groove section formed to have a less depth from the second surface than depth of a remaining groove section and provided to form a communication flow channel on the first surface side, which is arranged to communicate between two flow path spaces for the first fluid that are adjacent to each other across the shallower groove section.07-11-2013
20130095406METHODS AND SYSTEMS FOR IMPROVING FUEL CELL EFFICIENCY - The disclosure is directed at a method and system for improving the efficiency of fuel cells by removing impediments within the fuel cell channel. The system includes at least one sensor and a processor for determining when a gas, such as carbon dioxide, concentration level has surpassed a maximum threshold. The processor then activates an impediment removing element to remove or release gas bubbles within the fuel cell channel which are blocking reaction sites or fuel flow.04-18-2013
20130115539FLUID FLOW ASSEMBLIES FOR, AND IN, FUEL CELL STACKS - Fuel cells and related assemblies involving directionally independent channels are provided. In this regard, a representative fuel cell stack (05-09-2013
20130130143Device for Connecting a Line Element to a Component - A device for connection of a line element to a component is provided. The line element ends in a connection housing or is connected to such a connection housing. A releasable fixing arrangement is configured between the connection housing and the component. A line section extending in the connection housing is heated by an electric heating wire. The heating wire externally surrounds the line section. The heated line section projects in the direction of the component so far over the region for releasable fixing of the connection housing on the component that it ends in the inner space of the component.05-23-2013
20130157159ATTACHMENT FOR A FUEL TANK OF A FUEL CELL POWERED SYSTEM AND ELECTRONIC PORTABLE DEVICE EQUIPPED THEREWITH - An attachment for a fuel tank of a fuel cell powered system is described. The attachment thermally conducts heat generated from an electronic component to the fuel tank. The attachment further affixes to the electronic component by a securing portion. In one aspect, the attachment is comprised in a fuel cell powered electronic device. In another aspect, the attachment is integral to the fuel tank.06-20-2013
20100310956Bipolar Plate for a Fuel Cell with a Polymer Membrane - A distribution plate for a fuel cell, comprising a first plate (12-09-2010
20100316924FUEL CELL - A fuel cell is formed by stacking first cell units and second cell units alternately. An inlet buffer and an outlet buffer are formed on a surface of a first metal separator of the first cell unit. Bosses are provided in the inlet buffer and the outlet buffer of the first metal separator. An inlet buffer and an outlet buffer are formed on a surface of the second metal separator of the first cell unit. Continuous guide ridges are formed in the inlet buffer and the outlet buffer of the second metal separator. The bosses and the continuous guide ridges are provided at positions overlapped with each other in the stacking direction.12-16-2010
20100316923FUEL CELL SYSTEM - The invention relates to a fuel cell stack (12-16-2010
20130157160POLYMER ELECTROLYTE FUEL CELL - A polymer electrolyte fuel cell comprises a plurality of stacked cells each having an ionic conductive electrolyte membrane, an anode placed on one side of the electrolyte membrane, a cathode placed on the other side of the electrolyte membrane, and a conductive separator on which a first refrigerant channel for flow of a refrigerant is formed in center part thereof. The separator comprises a penetration holes constituting a manifold which extend in a direction of stacking of the plurality of cells and through which the refrigerant flows, a second refrigerant channels for communication between the penetration holes and the first refrigerant channel, and a plurality of protrusions that protrude into the penetration holes from parts of wall surfaces of the penetration holes that located peripherally in connection parts between the penetration holes and the second refrigerant channels.06-20-2013
20120021319SOLID OXIDE FUEL CELL DEVICE - The SOFC of the present invention has a plurality of individual solid oxide fuel cells (01-26-2012
20120021318FUEL CELL, METHOD FOR OPERATING FULL CELL AND FUEL CELL SYSTEM - A fuel cell, a method for operating a fuel cell and a fuel cell system, which ensure no dew condensation for a wet reaction gas in the inlet area of gas channels in plates in a fuel cell stack, are provided. Gas channels 01-26-2012
20120028154FUEL CELL HAVING IMPROVED THERMAL CHARACTERISTICS - One exemplary embodiment includes a fuel cell comprising a polymer electrolyte membrane sandwiched between an anode and a cathode, a gas diffusion layer disposed over each of the cathode and the anode, a gas flow distributor layer disposed over the gas diffusion layer on both the anode and cathode sides, and optionally a coolant plate disposed over the gas flow distributor layer. The thermal resistance of the combined gas diffusion layer and gas flow distributor layer on the anode and/or cathode side is sufficient to allow the cathode catalyst layer to operate at an elevated temperature to effectively evaporate water produced at the cathode.02-02-2012
20120064426FUEL CELL SYSTEM AND FUEL-CELL VEHICLE - A fuel cell system includes fuel cells, a circulation channel of a coolant to cool the fuel cells, and an ion exchange resin provided on the circulation channel to maintain electrical conductivity of the coolant. The coolant contains an additive. The ion exchange resin is prepared so that adsorption of the additive on the ion exchange resin is in a saturated state. A fuel-cell vehicle includes the fuel cell system.03-15-2012
20130209909FUEL CELL - A cell unit constituting a fuel cell is provided with a first electrolyte membrane/electrode structure, a first separator, a second electrolyte membrane/electrode structure, and a second separator. The first and second electrolyte membrane/electrode structures respectively have a frame section on the outer periphery, and the frame sections are formed with a fluid communicating hole extending in the stacking direction. The first and second separators are disposed towards the inside of the fluid communication hole and are respectively provided with two metal plates which have the same shape and which are stacked on one another.08-15-2013

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