Patent application number | Description | Published |
20080226957 | Fuel cell system - The present invention provides a technology related to a fuel cell system capable of adjusting a discharge amount of an odorant discharged to an outside of a moving body according to a state of the moving body. The fuel cell system mounted to a moving body includes: a fuel cell which generates electric power by electrochemically reacting a hydrogen gas with an oxidation gas; and a adjusting portion which adjusts an amount of an odorant to be discharged to an outside of the moving body according to a state of the moving body, the odorant being included in an anode off-gas discharged from an anode side of the fuel cell. | 09-18-2008 |
20090004520 | Heat Retention and Heating of Reaction Gas in Fuel Cell System - The invention provides a technique for reducing the adverse effects which can arise as a result of water freezing in the reaction gas channels of fuel cell systems. The fuel cell system comprises a fuel cell; a reaction gas channel in which flows reaction gas that is supplied to the fuel cell and that is discharged from the fuel cell; and a cooling water channel in which flows cooling water that has cooled the fuel cell. The cooling water channel is formed in such a way as to cover at least part of the reaction gas channel. This allows the reaction gas channel of the fuel cell system to be kept warm or heated by the cooling water. It is thus possible to reduce the adverse effects which can arise as a result of water freezing in the reaction gas channel in the fuel cell system. | 01-01-2009 |
20090096464 | Electrical leakage detecting device for a fuel cell system - An electrical leakage determining circuit determines the occurrence of electrical leakage at a negative electrode of a fuel cell when a potential difference V between a positive electrode of the fuel cell and ground, which is detected by a potential difference detecting circuit, exceeds a preset potential difference threshold Vth, and determines the occurrence of electrical leakage at the positive electrode of the fuel cell when an insulation resistance R between the positive electrode of the fuel cell and ground, which is detected by a resistance detection circuit, falls below a resistance threshold Rth preset to be equal to or smaller than a resistance value Rw of a coolant. Upon determination of the occurrence of electrical leakage, the electrical leakage determining circuit opens a switching contact provided on a power supply line to interrupt power supply from the fuel cell to various power consumption components. | 04-16-2009 |
20100101306 | ODORANT ADDITION DEVICE AND FUEL GAS SUPPLY SYSTEM - An odorant addition device for adding odorant to fuel gas in a gas system that consumes the fuel gas, the device including: an addition unit for adding the odorant to fuel gas to be consumed by the gas system; an environmental condition detection unit for detecting in the gas system an environmental condition regarding diffusion of odorant in fuel gas; and an addition adjustment unit for adjusting mode of odorant addition by the addition unit based on the environmental condition detected by the environmental condition detection unit. In this way, it is possible to detect leakage of fuel gas more reliably and improve safety dramatically, in a gas system that consumes the fuel gas as fuel. | 04-29-2010 |
20110053028 | Fuel cell system - The present invention provides a technology related to a fuel cell system capable of adjusting a discharge amount of an odorant discharged to an outside of a moving body according to a state of the moving body. The fuel cell system mounted to a moving body includes: a fuel cell which generates electric power by electrochemically reacting a hydrogen gas with an oxidation gas; and a adjusting portion which adjusts an amount of an odorant to be discharged to an outside of the moving body according to a state of the moving body, the odorant being included in an anode off-gas discharged from an anode side of the fuel cell. | 03-03-2011 |
Patent application number | Description | Published |
20090288713 | STORAGE TANK SYSTEM AND METHOD OF DECOMPRESSING THE STORAGE TANK SYSTEM - A tank system includes a high-pressure tank, a detection unit for detecting a temperature increase in at least a portion of the high-pressure tank, a decompression unit for decompressing the high-pressure tank, and a control unit for controlling the decompression unit to decompress the high-pressure tank when a temperature increase in at least a part of the high-pressure tank is detected by the detection unit. | 11-26-2009 |
20090308489 | IN-VEHICLE HYDROGEN STORAGE APPARATUS - An in-vehicle hydrogen storage apparatus has a hydrogen gas filling passage connected from a hydrogen gas filling port up to the storage device that stores a hydrogen gas to be supplied to a fuel cell, and an odorizing agent supplying device that supplies an odorizing agent to hydrogen gas in at least one of the inside of the storage device and the inside of the hydrogen gas filling passage. | 12-17-2009 |
20090317675 | FUEL CELL SYSTEM - It is an object of the present invention to provide a fuel cell system that is capable of sensing unintended gas leakage from a discharge control means based on odor. | 12-24-2009 |
20100003559 | HYDROGEN SUPPLYING APPARATUS AND METHOD FOR CONTROLLING HYDROGEN SUPPLYING APPARATUS - A hydrogen supply apparatus includes a hydrogen supply path by which hydrogen released from a hydrogen tank reaches a hydrogen supply target, a branching path from the hydrogen supply path, in which a part of hydrogen released from the hydrogen tank flows, addition means for adding an odorizing agent to the hydrogen flowing in the branching path, a buffer tank storing the hydrogen to which the odorizing agent is added by the addition means, and supplying means for supplying the odorizing agent treated hydrogen in the buffer tank to the hydrogen supply path. | 01-07-2010 |