| Patent application number | Description | Published |
|---|
| 20080311444 | Fuel Cell Power Generation System, and Method for Operating Fuel Cell Power Generation System - The fuel cell power generation system includes a fuel cell, a reformer, a carbon monoxide decreasing unit, a first raw material supply source, a first valve which is provided to a first raw material flow passage which is arranged between the first raw material supply sources and the reformer, a second valve which is provided downstream of the carbon monoxide decreasing unit, a second raw material supply source which supplies a raw material to the inside of a flow passage which is closed by the first valve and the second valve from a middle portion of the carbon monoxide decreasing unit or a downstream of the carbon monoxide decreasing unit, and a control unit which controls the first valve and the second valve, wherein the control unit, after the first valve and the second valve are closed, supplies the raw material fed from the second raw material supply source to the inside of the flow passage closed by the first valve and the second valve at the time of stopping the fuel cell power generation system. | 12-18-2008 |
| 20090092883 | FUEL CELL SYSTEM - A fuel cell system is provided, the system comprising: a fuel cell ( | 04-09-2009 |
| 20090117426 | Fuel Cell System - A fuel cell system ( | 05-07-2009 |
| 20090253004 | FUEL CELL ELECTRICITY-GENERATING DEVICE - A stable and high reliability fuel cell electricity-generating device capable of generating electricity even in the case of sudden drop of load power. A fuel cell generating electric power from a fuel and an oxidizer, a fuel processor producing fuel to be supplied into the fuel cell from an electricity-generating material, a combustion device combusting a residual fuel gas unconsumed in the fuel cell to raise the temperature of the fuel processor, and an electric power generation instructing means of determining the electric power generated by the fuel cell, wherein when the electric power generation instructing means decreases the electric power generated by the fuel cell depending on the decrease of load power to be supplied, the rate at which the generated electric power is decreased is made different depending on the change of the temperature of the fuel processor. | 10-08-2009 |
| 20090263686 | METHOD OF OPERATING A FUEL CELL SYSTEM - A method of operating a fuel cell system includes step a) of providing a package accommodating a fuel cell stack and a hydrogen-rich gas supply configured to supply hydrogen-rich gas, step b) of detecting leakage of a combustible gas, comprised of the hydrogen-rich gas or a raw fuel gas, using a combustible gas detector, step c) of injecting the combustible gas intermittently into the package through a combustible gas guide pipe, and step d) of determining whether or not detection sensitivity of the combustible gas is proper based on an output value of the combustible gas detector when step c) is preformed. | 10-22-2009 |
| 20090291339 | METHOD OF OPERATING A FUEL CELL SYSTEM - A method of operating a fuel cell system including stopping power generation of a fuel cell which generates electric power using a fuel gas and an oxidizing gas, filling and keeping a combustible gas in a cathode of the fuel cell after said step, supplying the oxidizing gas to the cathode, supplying the combustible gas discharged from the cathode in response to the previous step to a combustor capable of heating a fuel generator for generating the fuel gas or an exhaust pipe connected to the combustor via a branch passage branching from an oxidizing gas passage located downstream of the cathode, diluting the combustible gas supplied to the combustor or the exhaust pipe with air supplied to the combustor or exhaust gas supplied to the exhaust pipe such that the combustible gas has a concentration lower than a combustion lower limit, and discharging the diluted combustible gas to atmosphere. | 11-26-2009 |
| 20100047636 | HYDROGEN GENERATING APPARATUS, METHOD OF OPERATING HYDROGEN GENERATING APPARATUS, AND FUEL CELL SYSTEM - A hydrogen generating apparatus of the present invention includes a controller ( | 02-25-2010 |
| 20100047643 | FUEL CELL SYSTEM - A fuel cell system of the present invention includes: a fuel cell ( | 02-25-2010 |
| 20100074838 | HYDROGEN GENERATOR, METHOD FOR OPERATING HYDROGEN GENERATOR, AND FUEL CELL SYSTEM - A hydrogen generator includes: a reformer ( | 03-25-2010 |
| 20100136450 | FUEL CELL SYSTEM AND OPERATION METHOD OF FUEL CELL SYSTEM - A fuel cell system of the present invention comprises a fuel cell ( | 06-03-2010 |
| 20100183934 | FUEL CELL SYSTEM - A fuel cell system includes: a fuel cell ( | 07-22-2010 |
| 20100190070 | FUEL CELL SYSTEM - A fuel cell system of the present invention includes: a fuel cell configured to generate electric power using a fuel; a fuel processor configured to generate the fuel from a power generation material and supply the fuel to the fuel cell; composition-related information acquiring means ( | 07-29-2010 |
| 20110117461 | HYDROGEN GENERATION DEVICE AND FUEL CELL SYSTEM PROVIDED THEREWITH - A hydrogen generation device or a fuel cell system of the present invention can prevent deterioration or breakage of portions of the hydrogen generation device, which is caused by thermal stress attributable to repeated operation and halt. Thus, it is possible to increase the life and enhance the stability of the device and the system. | 05-19-2011 |
