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US20090325013 |
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...
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US20090325009 |
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...
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US20090325012 |
ALKALINE FUEL CELL SYSTEM
An alkaline fuel cell system includes an alkaline fuel cell stack, a source of fuel gas, an oxidizer gas pump for oxidizer gas, an electrolyte tank, an electrolyte pump, an auxiliary electric...
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US20090325006 |
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...
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US20090325014 |
Operation Of An Electrolysis Cell
An electrolysis cell is controlled for operation under varying electrical power supply conditions. A flow of feed stock to the cell includes an electrolysis reactant at a controlled concentration....
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US20090311562 |
METHOD AND SYSTEM OF ACTIVATING FUEL CELL STACK
An activation method and system to selectively activate defective cells in a laminated fuel cell stack. The system includes a tank to store a polar solvent used to activate the cells; a body...
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US20090305101 |
Fuel Cell Apparatus Having a Current Sensor and a Current Sensor for a Fuel Cell Apparatus
A fuel cell apparatus includes at least one busbar for discharging high electrical currents from a high-voltage side of a fuel cell unit and a current sensor that comprises an evaluation...
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US20090305087 |
METHOD AND APPARATUS FOR CONTROLLING A FUEL CELL SYSTEM HAVING A VARIABLE NUMBER OF PARALLEL-CONNECTED MODULES
A fuel cell APU system comprising a plurality of fuel cell modules connected in parallel. Each module includes a local controller connected to a master controller that coordinates the modules to...
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US20090297901 |
POWER SYSTEM FOR A HYBRID FUEL CELL VEHICLE THAT EMPLOYS A FLOATING BASE LOAD STRATEGY
A fuel cell system employing a floating base load hybrid strategy for reducing fast voltage transients of a FCPM. A power request signal is applied to an average power calculation processor that...
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US20090297900 |
Fuel Cell System
A fuel cell system capable of stably supplying hot water to a load is provided. The fuel cell system includes a solid-oxide fuel cell 31, a heat exchanger 40 that exchanges heat between an...
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US20090291334 |
System and Method of Controlling Fluid to a Fluid Consuming Battery
A fluid regulating system is provided for controlling fluid to a fluid consuming battery having a fluid consuming cell. The fluid regulating system includes a valve having a moving plate disposed...
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US20090291332 |
System and Method of Controlling Fluid to a Fluid Consuming Battery
A fluid regulating system is provided for controlling fluid to a fluid consuming battery having a fluid consuming cell. The fluid regulating system includes a valve and an actuator for opening and...
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US20090291341 |
FUEL CELL SYSTEM
An object of the present invention is to provide a fuel cell system in which a noise and a vibration of a compressor can be suppressed. In order to achieve the above object, the present invention...
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US20090280372 |
FUEL CELL SYSTEM
A fuel cell system repeats first processing and second processing when the system is started. In the first processing, a control section controls an electric power distribution section so that...
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US20090274937 |
FUEL CELL SYSTEM WITH CIRCUIT MODULES
A solid oxide fuel cell system includes a fuel cell stack and a voltage providing member configured to provide a non-zero reference voltage to the fuel cell stack. The fuel cell stack includes a...
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US20090269634 |
System for purging non-fuel material from fuel cell anodes
A fuel cell gas purge system is provided that includes at least one fuel cell, such as a fuel cell stack or a fuel cell array, a fuel supply, and an adjustable fuel cell current load. The system...
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US20090269635 |
FUEL CELL SYSTEM
A fuel cell system which is capable of reducing deterioration of fuel cells is preferably mounted on a motorbike and includes a cell stack, a CPU, a voltage detection circuit, a current detection...
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US20090263696 |
SHUTDOWN OPERATIONS FOR A SEALED ANODE FUEL CELL SYSTEM
Processes to shut down a fuel cell system are described. In one implementation ( 400 ), fuel (H 2 ) and oxidizer (air) flow is halted and the system's anode region ( 305 ) is sealed. A load ( 215 )...
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US20090263683 |
METHOD AND DEVICE FOR IMPROVING THE SERVICE LIFE OF A FUEL CELL AT TRANSITIONS IN OPERATION
The subject of the present invention relates to a method and a protector for reducing degradation of fuel cell systems at transitions in operation, in particular at electrodes or catalysts in a...
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US20090258269 |
SYSTEM FOR CONTROLLING THE POWER OUTPUT OF A FUEL CELL STACK AND BATTERY
A system for controlling the power output of a fuel cell stack and a battery in a hybrid fuel cell system. The system includes a power damping filter that receives a power request signal, and damps...
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US20090258257 |
FUEL CELL SYSTEM
A fuel cell system including a fuel cell stack having a plurality of single cells stacked on one another, each single cell including an anode to which fuel gas can be supplied, a cathode to which...
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US20090252998 |
AUTOMOTIVE FUEL CELL WATER MANAGEMENT SYSTEM AND METHOD OF OPERATING SAME
Actuators are attached with plates of a fuel cell stack. Electrical power is provided to the actuators to drive the actuators to mechanically excite the plates to agitate liquid water restricting...
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US20090253000 |
System and method for operating a high temperature fuel cell as a back-up power supply with reduced performance decay
A method is provided for reducing degradation in a fuel cell assembly, including at least one fuel cell with a PBI membrane, during standby, operation. The method may include electrochemically...
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US20090246574 |
FUEL CELL APPARATUS AND DRIVE METHOD THEREOF
According to an embodiment, a fuel cell apparatus comprises an electromotive section including a cell including an anode and a cathode, and configured to generate electricity by a chemical...
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US20090246580 |
FUEL CELL AND FUEL CELL SYSTEM
A fuel cell includes: an electrolyte membrane; an anode provided on one face of the electrolyte membrane; a cathode provided on the other face of the electrolyte membrane; an anode chamber, located...
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US20090239109 |
FUEL CELL SYSTEM AND METHOD OF STARTING OPERATION OF THE FUEL CELL SYSTEM
A controller of a fuel cell system includes an anode gas replacement apparatus, a stoppage time detection apparatus, and a cathode gas flow rate control apparatus. The anode gas replacement...
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US20090226769 |
MEASUREMENT OF INSULATION RESISTANCE OF FUEL CELL IN FUEL CELL SYSTEM
A fuel cell system includes a fuel cell, an insulation resistance measuring unit configured to measure insulation resistance between the fuel cell and an external conductor, and a control unit...
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US20090226770 |
Fuel Cell System and Ac Impedance Measurement Method
A fuel cell system capable of measuring AC impedance comprises: power generation stabilizing means for stabilizing power generation in a fuel cell, and impedance measuring means for measuring the...
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US20090220827 |
Monitoring fuel cells using rfid devices
Radio frequency identification (RFID) devices may be used to monitor various operating parameters in fuel cells. For example, RFID devices may be used to monitor the voltage of individual cells in...
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US20090214903 |
FUEL CELL SYSTEM AND CONTROL METHOD THEREOF
A fuel cell system includes a fuel cell which has an anode. A fuel supplying device circulates a supply of aqueous methanol solution to the anode in the fuel cell. The fuel supplying device...
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US20090214901 |
FUEL CELL SYSTEM AND CONTROL METHOD THEREOF
A fuel cell system and a control method thereof; said system comprises a fuel cell generator ( 5 ), a fuel supply unit ( 6 ), a gas supply unit ( 7 ), a detection unit ( 8 ), and a control unit ( 9...
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US20090208786 |
FUEL CELL SYSTEM
There is provided a fuel cell system capable of notifying a user that control for low-temperature countermeasure is performed, without any strange feeling and false recognition. When control for...
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US20090208794 |
FUEL CELL DEVICE
A fuel cell device includes a housing containing a fuel processor that generates fuel gas and a fuel cell having electrodes forming an anode and cathode, and an ion exchange electrolyte positioned...
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US20090197126 |
Adaptive Gain Scheduled Control for Current Limitation Based on Voltage Performance of a Fuel Cell System
A system and method for limiting the output current of a fuel cell stack as the stack degrades overtime. A look-up table identifies a predetermined voltage set-point for stack current density. A...
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US20090197129 |
FUEL CELL SYSTEM
A fuel cell system can be initiated in shorter time while minimizing the deterioration of a fuel cell. The fuel cell system includes a fuel cell stack having a fuel electrode, an oxidizer electrode...
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US20090191437 |
FUEL CELL SYSTEM
A fuel cell system including a plurality of single-cell units, each of which include an electrolyte membrane disposed between an anode and a cathode and which generate electric power by a reaction...
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US20090186247 |
Fuel cell power supply
A fuel cell power supply includes a fuel cell voltage detection means which detects a terminal-to-terminal voltage of the fuel cell; an internal resistance calculation means which supplies electric...
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US20090181270 |
Anode Recirculation Pump Control Strategy
A control strategy for controlling how much current can be provided by a fuel cell stack to a system load during a power up-transient. When a power up-transient command is given, the control...
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US20090181269 |
FUEL CELL STACK, FUEL CELL SYSTEM AND METHOD OF OPERATING FUEL CELL SYSTEM
A fuel cell stack of the present invention includes intermediate current collectors ( 52, 53 ) which are disposed in an intermediate portion between a pair of end portion current collectors ( 50,...
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US20090176135 |
Operating Fuel Cell During Down Time on Cryogenic Hydrogen Boil-Off
A fuel cell power plant ( 9 ) includes a stack ( 10 ) of fuel cells, each including anode ( 11 ), cathodes ( 12 ), coolant channels ( 13 ) and either (a) a coolant accumulator ( 60 ) and pump ( 61...
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US20090176133 |
FUEL CELL CONTROL SYSTEM AND CONTROL METHOD THEREOF
A fuel cell control system and a control method thereof are provided. The fuel cell control system includes an air supply module, a fuel supply module having a fuel supply end, a fuel cell set...
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US20090169937 |
Fuel Cell System and Mobile Body
In a mobile body, an intermittent operation to temporarily halt a cell operation is performed at a time when a request for power generation with respect to a fuel cell stack is less than a...
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US20090169935 |
Fuel Cell System
There is provided a fuel cell system capable of warming up a fuel cell while inhibiting generation of a rush current. A control device switches the connection/disconnection between a fuel cell and...
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US20090169936 |
Fuel Cell System and Vehicle
The present invention relates to a fuel cell system including a fuel cell, a hydrogen gas piping system for supplying a hydrogen gas to the fuel cell, an injector which adjusts a gas state on an...
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US20090148730 |
FUEL CELL POWER GENERATION SYSTEM, ITS STOPPING/SAFEKEEPING METHOD AND PROGRAM
A fuel cell power system includes a fuel cell stack prepared by stacking a plurality of electric cells, each having an anode and a cathode with an electrolyte therebetween, a fuel supply line and...
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US20090148736 |
Fuel Cell System and Mobile Object
There is disclosed a fuel cell system or the like capable of stably operating an auxiliary machine and the like, even when recovering a poisoned electrode catalyst and warming up a fuel cell. A...
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US20090148727 |
OUTPUT LIMITING DEVICE FOR FUEL CELL
An output limiting device for a fuel cell, including: an inlet coolant temperature sensor detecting an inlet coolant temperature at a coolant inlet of the fuel cell; an outlet coolant temperature...
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US20090142634 |
Fuel cell power supply device
It is an object of the present invention to provide a fuel cell power supply device that can realize a reduction in size and improvement of durability of an accumulating unit while maintaining...
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US20090142630 |
Fuel Cell Apparatus and Method of Controlling Fuel Cell Apparatus
According to one embodiment, a fuel cell apparatus includes a cell stack of an active direct methanol type, and a DC-DC converter configure to receive output voltage of the cell stack and to...
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US20090136790 |
Regulating An Oxidizer In An Electrochemical Cell Pumping System
A technique includes operating an electrochemical cell as a pump, including providing a current to the cell and providing a fuel flow to an anode chamber of the cell. The technique includes...
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