Patent application number | Description | Published |
20110165481 | HYDROGEN GENERATOR AND FUEL CELL SYSTEM - A hydrogen generator of the present invention comprises a reformer ( | 07-07-2011 |
20110223099 | HYDROGEN GENERATOR AND METHOD FOR OPERATING THE SAME - A hydrogen generator of the present invention includes: a reformer ( | 09-15-2011 |
20110256460 | FUEL CELL POWER GENERATION SYSTEM AND METHOD FOR OPERATING THE SAME - A fuel cell power generation system of the present invention includes: a fuel cell ( | 10-20-2011 |
20110269038 | HYDROGEN GENERATOR, FUEL CELL SYSTEM, AND METHOD FOR OPERATING HYDROGEN GENERATOR - The possibility of carbon deposition from a raw material gas is made lower than before in a pressure compensating operation carried out after stopping the stop process of a hydrogen generator and a fuel cell system including the hydrogen generator. | 11-03-2011 |
20120021320 | FUEL CELL SYSTEM AND METHOD FOR OPERATING FUEL CELL SYSTEM - A fuel cell system ( | 01-26-2012 |
20120040260 | FUEL CELL SYSTEM AND WATER DRAINING METHOD FOR FUEL CELL SYSTEM - A fuel cell system of the present invention includes: a fuel cell ( | 02-16-2012 |
20120064421 | HYDROGEN GENERATION DEVICE AND FUEL CELL SYSTEM EQUIPPED WITH SAME - A hydrogen generation apparatus according to the present invention includes: a hydrogen generator configured to generate a fuel gas through a reforming reaction by using a raw fuel; a combustor configured to heat the hydrogen generator; an on-off valve configured to open/block a gas passage through which the gas that is sent out from the hydrogen generator is supplied to the combustor; a combustion air supply device configured to supply combustion air to the combustor; an ignition device provided at the combustor; and a controller. In a case where flame extinction has occurred at the combustor during generation of a hydrogen-containing gas in a start-up process, the controller performs an ignition operation of the ignition device with the on-off valve kept opened. | 03-15-2012 |
20120070753 | FUEL CELL SYSTEM AND CONTROL SYSTEM FOR SAME - A fuel cell system including: a fuel cell; a fuel processor including a reformer and a selective oxidizer configured to cause a reaction between carbon monoxide contained in a reformed gas and oxygen in air, an air blower configured to send air for use in power generation to a cathode of the fuel cell and to send air for use in a selective oxidation reaction to the selective oxidizer; a cathode air passage, one end of which is connected to the cathode of the fuel cell and the other end of which is connected to the air blower; a selective oxidation air passage, one end of which is connected to a branching point, on the cathode air passage, at which the selective oxidation air passage branches off from the cathode air passage, and the other end of which is connected to the selective oxidizer; a selective oxidation air meter configured to measure the flow rate of air supplied to the selective oxidizer; and a controller configured to control the air blower. The cathode air passage and the selective oxidation air passage are formed such that the flow rate of the air sent to the selective oxidizer is less than the flow rate of the air sent to the cathode. While the fuel cell is generating power, the controller performs feedback control of controlling the supply performance of the air blower based on the air flow rate measured by the selective oxidation air meter, such that the flow rate of the air sent to the selective oxidizer becomes a target value. | 03-22-2012 |
20120077097 | FUEL CELL SYSTEM AND OPERATION METHOD THEREFOR - A fuel cell system of the present invention includes: a fuel cell apparatus; an exhaust gas passage through which an exhaust gas from the fuel cell apparatus is discharged; and a water tank configured to store water present within the exhaust gas. The water tank includes a first reservoir, a second reservoir, and a communication part which is configured to allow the first reservoir and the second reservoir to communicate with each other at a lower part of the water tank. The second reservoir of the water tank is provided with a drain outlet which is disposed above the communication part. The exhaust gas passage is connected to the first reservoir of the water tank. The exhaust gas passage is configured such that: in cases where a flow of the exhaust gas within the exhaust gas passage is not blocked at any position downstream from the water tank, the exhaust gas is discharged to the atmosphere from the exhaust gas passage; and in cases where the flow of the exhaust gas within the exhaust gas passage is blocked at a position downstream from the water tank, the exhaust gas is discharged to the atmosphere through the drain outlet of the water tank. | 03-29-2012 |
20120107703 | FUEL CELL SYSTEM - A fuel cell system of the present invention includes: a reformer ( | 05-03-2012 |
20120115052 | FUEL CELL SYSTEM AND OPERATION METHOD THEREFOR - A fuel cell system of the present invention is a fuel cell system including a fuel cell ( | 05-10-2012 |
20120219872 | FUEL CELL SYSTEM AND METHOD OF CONTROLLING FUEL CELL SYSTEM - A fuel cell system according to the present invention includes: a hydrogen generator; a burner; an air supply device; a fuel cell; a condenser configured to condense an exhaust reducing gas to recover condensed water, the exhaust reducing gas being discharged from the fuel cell; a condensed water tank configured to store the condensed water recovered by the condenser; a water level detector configured to detect a water level in the condensed water tank; a degasifier configured to remove a carbonic acid component contained in the condensed water by using an exhaust oxidizing gas discharged from the fuel cell; a water conveyance passage configured to connect the condensed water tank and the degasifier and including a water sealing structure at a portion thereof; a water level changing unit configured to change the water level in the condensed water tank; and a controller, and the controller causes the water level changing unit to change the water level in the condensed water tank, and when the water level detector has detected the change of the water level, the controller determines that the water level detector is normally operating. | 08-30-2012 |
20120237840 | POWER GENERATION SYSTEM - Included are: a power generation unit configured to generate electric power by consuming a raw material gas that has passed through a gas meter, the gas meter being configured to, if a state where continuously stopping a flow of the raw material gas for a reset period or longer is not performed has continued for a first upper limit period or longer, exert at least one of a function of outputting an abnormality indication signal and a function of blocking the flow of the raw material gas; a raw material gas supply device configured to supply the raw material gas to the power generation unit; and a controller. The controller is configured to: perform a raw material gas supply operation of supplying the raw material gas from the raw material gas supply device to the power generation unit in a case of performing normal stopping of a power generation operation; and stop the power generation operation, and stop the raw material gas supply operation until at least the reset period elapses, in a case where gas supply abnormality in which said state continues for a second upper limit period or longer has occurred, the second upper limit period being shorter than the first upper limit period. | 09-20-2012 |
20120328964 | FUEL CELL SYSTEM AND METHOD OF OPERATING THEREOF - A fuel cell system includes: a fuel cell unit | 12-27-2012 |
20130149623 | FUEL CELL SYSTEM AND METHOD OF OPERATING THE SAME - A fuel cell system according to the present invention includes: a fuel cell ( | 06-13-2013 |
20130312513 | FLOW METER DEVICE - A gas instrument determiner section included in a flow meter device determines whether or not a gas instrument in use is a fuel cell, by comparing an actual measurement value of a gas flow measured at first measurement time intervals in a first determination operation period from when inflowing of the gas starts until a predetermined time lapses, to determination flow data, and by comparing an actual measurement value measured at second measurement time intervals longer than the first measurement time interval in a second determination operation period which ends after the first determination operation period ends, to determination flow data. This makes it possible to accurately determine the gas instrument in use even when the gas instrument in use is the fuel cell. | 11-28-2013 |
20130316293 | FLOW METER DEVICE - A gas instrument determiner section ( | 11-28-2013 |
20130337356 | FUEL CELL SYSTEM AND METHOD OF OPERATING THE SAME - A fuel cell system includes: a fuel cell; a cooling water passage for cooling the fuel cell; a cooling water tank; a recovered water tank configured to store water produced in the fuel cell system; a water circulating passage configured to allow water circulating between the recovered water tank and the cooling water tank to flow therethrough; a power supply detection unit; a temperature detector provided in at least one of the cooling water passage, the cooling water tank, the recovered water tank, and the water circulating passage; and a controller configured to execute a temperature increasing process for increasing the temperature detected by the temperature detector if the power supply detection unit detects a change from a state in which electric power is not supplied to a state in which the electric power is supplied. | 12-19-2013 |
20140023944 | FUEL CELL SYSTEM AND METHOD OF OPERATING SAME - A fuel cell system includes: a fuel cell; a fuel gas supply unit; an oxidizing gas supply unit; an oxidizing gas supply passage; an oxidizing gas discharge passage; an oxidizing gas branch passage; an on-off valve disposed on at least one of the oxidizing gas discharge passage and a portion of the oxidizing gas supply passage; an oxidizing gas supply amount measuring unit disposed on the oxidizing gas branch passage; and a controller configured to determine that the on-off valve is normal in a case where a supply amount of the oxidizing gas measured by the oxidizing gas supply amount measuring unit is equal to or larger than a first threshold and determines that the on-off valve is abnormal in a case where the supply amount of the oxidizing gas measured by the oxidizing gas supply amount measuring unit is smaller than the first threshold. | 01-23-2014 |