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| Application No. | Application Title | Issue Date |
| 20100159295 | ON-LINE REPLACEMENT OF DCFC TUBULAR ELEMENTS In one embodiment, the present invention relates generally to a method for replacing at least one direct carbon fuel cell (DCFC) tube of a plurality of DCFC tubes in a fuel cell on-line. In one embodiment, the method includes detecting a degradation in performance of th... | 06/24/2010 |
| 20100159296 | Fuel cell system and driving method thereof Disclosed are a fuel cell system, and a method of driving the system. The fuel cell system includes a fuel cell stack having a plurality of unit cells producing electricity, a switching unit connecting the plurality of unit cells to a discharge resistor, a switching con... | 06/24/2010 |
| 20100151285 | ANODE REACTIVE BLEED AND INJECTOR SHIFT CONTROL STRATEGY A system and method for correcting a large fuel cell voltage spread for a split sub-stack fuel cell system. The system includes a hydrogen source that provides hydrogen to each split sub-stack and bleed valves for bleeding the anode side of the sub-stacks. The system al... | 06/17/2010 |
| 20100136379 | APPARATUS FOR HIGH EFFICIENCY OPERATION OF FUEL CELL SYSTEMS AND METHOD OF MANUFACTURING SAME A drive circuit comprising a DC bus configured to supply power to a load, a first fuel cell coupled to the DC bus and configured to provide a first power output to the DC bus, and a second fuel cell coupled to the DC bus and configured to provide a second power output t... | 06/03/2010 |
| 20100119900 | FUEL CELL OUTPUT CHARACTERISTIC ESTIMATION APPARATUS AND OUTPUT CHARACTERISTIC ESTIMATION METHOD, FUEL CELL SYSTEM AND VEHICLE HAVING THE SAME, AND FUEL CELL OUTPUT CONTROL METHOD AND DATA STORAGE MEDIUM An output characteristic of a fuel cell is estimated by detecting an output current of the fuel cell and a voltage between terminals of the fuel cell, and then estimating the output characteristic of the fuel cell on the basis of the detected output current and the dete... | 05/13/2010 |
| 20100112402 | FUEL CELL SYSTEM An object of the present invention is to provide a fuel cell system suited for changing a drive operating point of a fuel cell at the time of low-efficiency power generation. The fuel cell system in accordance with the present invention includes a fuel cell which genera... | 05/06/2010 |
| 20100112401 | FUEL CELL SYSTEM, ELECTRODE CATALYST DEGRADATION JUDGMENT METHOD, AND MOVING BODY Output voltage of a fuel cell 2 is decreased by a converter 51 to conduct an activation treatment to catalyst of the fuel cell 2, while measuring reduction current by a current sensor 2a while scanning output voltage of the fuel cell <... | 05/06/2010 |
| 20100104907 | ELECTRONIC DEVICE In an electronic device, state detection elements are arranged at various locations of a fuel cell system supplies an electric power to a phone unit, the state detection elements detect states of the fuel cell system at the locations. A cell state detection unit detects... | 04/29/2010 |
| 20100098976 | FUEL CELL SYSTEM AND METHOD FOR CHECKING FOR HYDROGEN LEAKAGE IN FUEL CELLS THEREOF A fuel cell system and a method for checking for hydrogen leakage are provided. The fuel cell system includes a fuel cell module having at least one fuel cell. The fuel cell system further includes a valve coupled to the fuel cell module and a hydrogen source for allowi... | 04/22/2010 |
| 20100086816 | Electronic Device and Electronic Device Operating Control Method Described is an electronic device and an electronic device control method. If voltage generated by the fuel cell, acquired from the voltage detection part, is greater than a specified voltage reference value (VRV), a display part displays the fuel cell as normal. Howeve... | 04/08/2010 |
| 20100086815 | FUEL CELL SYSTEM A fuel cell system capable of reducing time spent before actual execution of low-temperature countermeasure processing is provided. At the time of activation, a control unit for the fuel cell system refers to, for example, a detected FC temperature and judges whether or... | 04/08/2010 |
| 20100081022 | FUEL CELL SYSTEM A fuel cell system includes: an AC impedance measuring unit which measures an AC impedance of a fuel cell at a scavenging start and which measures an AC impedance of the fuel cell when a predetermined time has elapsed from the scavenging start; a scavenging execution ti... | 04/01/2010 |
| 20100081018 | Increasing thermal dissipation of fuel cell stacks under partial electrical load A method of operating a high temperature fuel cell system containing a plurality of fuel cell stacks includes operating one or more of the plurality of fuel cell stacks at a first output power while operating another one or more of the plurality of the fuel cell stacks ... | 04/01/2010 |
| 20100081023 | HYDROGEN-PRODUCING FUEL PROCESSING SYSTEMS WITH A LIQUID LEAK DETECTION SYSTEM Liquid leak detection systems, and fuel cell systems and hydrogen-producing fuel processing systems containing the same. The liquid leak detection systems are adapted to detect liquid leaks from the fuel cell and/or fuel processing systems and to respond thereto, such a... | 04/01/2010 |
| 20100068564 | APPARATUS FOR STABILIZING FUEL CELL AND METHOD THEREFOR An apparatus for stabilizing the fuel cell comprises a converter, a direct voltage detector and a regulating module. The converter can transform direct current generated from the fuel cell into electric power output, wherein a voltage of the electric power output is sta... | 03/18/2010 |
| 20100068570 | FUEL CELL SYSTEM A fuel cell system is provided which efficiently performs a scavenging process for a fuel cell stack (10) constituted of a plurality of fuel cells (40) each of which generates electric power using reaction gas supplied. When the power generation of the fue... | 03/18/2010 |
| 20100068576 | FUEL CELL SYSTEM A fuel cell system determines whether an operation condition of a fuel cell corresponds to a fuel gas shortage or an oxidation gas shortage. Upon determining that the fuel gas is in shortage, the system sets a lower voltage limit to be higher than that set when the syst... | 03/18/2010 |
| 20100068567 | FUEL CELL SYSTEM A system voltage indicated by an intersection of a graph of an FC maximum output characteristic of the output voltage/output power characteristic of a fuel cell and a graph of a load device maximum output characteristic is output so as to obtain optimal output power, th... | 03/18/2010 |
| 20100068569 | FUEL CELL SYSTEM AND METHOD FOR CONTROLLING THE FUEL CELL SYSTEM A gas-supply passage (6) via which anode gas is supplied to a fuel cell unit (2) and a gas-discharge passage (12) via which anode gas is discharged from the fuel cell unit (2) are connected via a communication passage (30). Circulation... | 03/18/2010 |
| 20100068575 | FUEL CELL SYSTEM A fuel cell system includes: a fuel cell stack which receives a fuel gas and an oxidation gas to generate a power; an air compressor which supplies the oxidation gas to the fuel cell stack; and a controller which reduces the oxidation gas flow rate supplied from the air... | 03/18/2010 |
| 20100068577 | FUEL CELL SYSTEM, ELECTRODE CATALYST DEGRADATION JUDGMENT METHOD, AND MOVING BODY When an output voltage of a fuel cell is lowered to carry out a catalyst activation process so as to activate a catalyst during an intermittent operation of the fuel cell, if generated power P1 exceeds allowed battery charge power, while generated power P2... | 03/18/2010 |
| 20100055511 | FUEL CELL SYSTEM A fuel cell system calculates amount of fluid discharged from a fuel gas circulation path with water and fuel gas in accordance with an ordinary process map if inside an anode is not scavenged when a fuel cell stops electrochemical reaction; measures amount of water rem... | 03/04/2010 |
| 20100055522 | FUEL CELL SYSTEM When a power generation instruction value for a fuel cell is reduced during warm-up of the fuel cell by a low power generation efficiency operation as compared to a normal operation and when supply of a reactant gas to the fuel cell cannot be controlled so as to follow ... | 03/04/2010 |
| 20100055521 | FUEL CELL SYSTEM To provide a fuel cell system that can both improve power generation efficiency of a fuel cell and maintain durability of the fuel cell. A fuel cell system performs control such that when a power requirement for the fuel cell is lower than a predetermined value, a suppl... | 03/04/2010 |
| 20100047630 | FUEL CELL SYSTEM AND ITS OPERATION METHOD A fuel cell system includes: a fuel cell which generates electricity; and control means which supplies an output power from the fuel cell to a predetermined load power source while realizing a low-efficiency operation of the fuel cell, thereby driving and controlling th... | 02/25/2010 |
| 20100047644 | FUEL CELL SYSTEM A fuel cell system includes: an AC impedance measuring unit which measures an AC impedance of a fuel cell at a scavenging start and which measures an AC impedance of the fuel cell at a time when a predetermined time has elapsed from the scavenging start; a scavenging ex... | 02/25/2010 |
| 20100035098 | Using chemical shorting to control electrode corrosion during the startup or shutdown of a fuel cell A technique that is usable with a fuel cell includes providing a fuel and oxidant mixture to a reactant chamber of the fuel cell to regulate an electrode potential of the fuel cell during startup or shutdown of the fuel cell.... | 02/11/2010 |
| 20100028738 | FUEL CELL SYSTEM A fuel cell system includes a fuel cell stack for receiving a supplied reactant gas to generate a power; an air compressor for removing moisture remaining in the fuel cell stack during the stop of the power generation; a secondary cell for supplying an operative power t... | 02/04/2010 |
| 20100028732 | METHOD AN APPARATUS FOR OPERATING A SOLID-OXIDE FUEL CELL STACK WITH A MIXED IONIC/ELECTRONIC CONDUCTING ELECTROLYTE A method and apparatus for operating an intermediate-temperature solid-oxide fuel cell stack (10) with a mixed ionic/electronic conducting electrolyte in order to increase its efficiency. The required power output of the sold-oxide fuel cell stack (10) is ... | 02/04/2010 |
| 20100028729 | FUEL CELL POWER PLANT INCLUDING A VARIABLE RESISTIVE DEVICE A fuel cell power plant (20) includes a variable resistive device (30). In one example, the variable resistive device (30) is operationally associated directly with a cell stack assembly (22). The controller (32) selectively varies an ... | 02/04/2010 |
| 20100028739 | FUEL CELL Fuel cell of this invention generates electricity by supplying fuel fluid to one of a pair of electrodes forming an MEA 1, supplying oxidation fluid to the other electrode, at least one of the fuel and oxidation fluids being gas, comprising a gas supply device tr... | 02/04/2010 |
| 20100021781 | FUEL CELL POTENTIAL MEASURING APPARATUS AND MANUFACTURING METHOD THEREFOR A fuel cell potential measuring apparatus includes a first sheet member which is arranged on an anode side, and a second sheet member which is arranged on a cathode side. On the first sheet member, an anode potential-applying electrode and an anode potential-measuring e... | 01/28/2010 |
| 20100021782 | FUEL CELL SYSTEM To provide a fuel cell system that achieves both prevention of degradation of the performance of a fuel cell due to accumulation of an impurity in an anode gas flow channel and reduction of the amount of discharged fuel gas to the outside of the system. 01/28/2010 | |
| 20100009227 | Monitoring Apparatus for a Fuel Cell Stack A control apparatus for a fuel cell stack having an operation control module is provided. The operation control module is configured in terms of programming and circuitry in order to control a large number of sensor or actuator systems that are relevant to normal operat... | 01/14/2010 |
| 20100009220 | Fuel cell load controller A method for distributing power includes identifying a value of a variable in a fuel cell system, where the fuel cell system is configured to provide electrical power to a load. Based at least in part on the identified value of the variable, it is determined that the va... | 01/14/2010 |
| 20100003546 | SYSTEM AND METHOD FOR SHORTING A FUEL CELL STACK A fuel cell system is provided that includes a fuel cell stack with a plurality of fuel cells and a power converter in electrical communication with the fuel cell stack. The power converter is configured to selectively regulate a power of the fuel cell stack and short c... | 01/07/2010 |
| 20100003550 | FUEL CELL DEVICE AND METHOD FPR REGULATING FUEL SUPPLY TO FUEL CELL DEVICE A fuel cell device having a fuel cell, a pump, an inhalation/exhalation port and a controller is provided. The pump is configured to regulate fuel supply to the fuel cell. The inhalation/exhalation port is configured to inhale oxygen and exhale moisture into and from th... | 01/07/2010 |
| 20090325006 | FUEL CELL SYSTEM A fuel cell system is provided with a power generation unit including stacked cells. Cell voltage signals are output from predetermined ones of the cells. A load change is applied to the generation unit, wherein first connection in which the first load is connected to t... | 12/31/2009 |
| 20090325013 | FUEL CELL SYSTEM A fuel cell system includes a hydrogen path for supplying odorant-added hydrogen to the fuel cell, an estimating unit to estimate the depositing of the odorant in the fuel cell, and control unit to heat the fuel cell up to a temperature at which at least part of the odo... | 12/31/2009 |
| 20090325009 | Electric power supply apparatus and portable electronic device having the same An electric power supply apparatus and a portable electronic device equipped with the electric power supply apparatus are disclosed. The electric power supply apparatus can include: a replaceable cartridge that supplies hydrogen or electrical power; a housing that forms... | 12/31/2009 |
