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US20080113238 |
FUEL CELL SYSTEM AND TRANSPORTATION EQUIPMENT INCLUDING THE SAME
A fuel cell system capable of reducing concentration change in an aqueous fuel solution and transportation equipment including the system such as a motorbike includes such a fuel cell system. The... |
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US20080096073 |
Dual function heat exchanger for start-up humidification and facility heating in SOFC system
A fuel cell system includes a fuel cell stack and a heat exchanger. The heat exchanger vaporizes water which is provided to the fuel cell stack during start-up of the fuel cell system and heats a... |
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US20100273068 |
FUEL CELL SYSTEM INCLUDING A FUEL FILTER MEMBER WITH A FILTER PROPERTY INDICATOR
A fuel cell system includes a fuel tank, a replaceable fuel filter, a fuel cell stack, and a control system. The fuel tank includes raw fuel stored therein. The replaceable fuel filter member... |
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US20110189569 |
AUTO-LEARNING OF BASE STACK RESISTANCE FOR HFR BASED RH CONTROL
A method for determining membrane humidification by determining the membrane protonic resistance of a fuel cell stack at humidified conditions, and normalizing the base resistance of the fuel cell... |
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US20120003553 |
FUEL CELL SYSTEM AND DRIVING METHOD OF THE SAME
A method of driving a fuel cell system is disclosed. The method of driving the fuel cell system may include supplying water to a reformer by pressing a pump pipe to pressing members to move the... |
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US20110269041 |
FUEL CELL COGENERATION SYSTEM
A fuel cell cogeneration system according to the invention is disclosed, the system comprising: a fuel cell (1) for generating electric power through a reaction between a fuel gas and an oxidizing... |
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US20060204803 |
Fuel cell device, control method thereof, and electronic appliance using them
The present invention relates to a fuel cell control of a fuel cell device using a liquid fuel, and simplifies its sensor configuration for obtaining control information. This is configured as a... |
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US20110097637 |
PURGE SYSTEM FOR FUEL CELL WITH IMPROVED COLD START PERFORMANCE
The present invention provides a purge system for a fuel cell, which can reduce the time required to thaw a frozen valve during cold start-up and reduce the whole start-up time, thus improving the... |
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US20070298289 |
Fuel cell system water management strategy for freeze capability
A fuel cell system that employs a method for determining the potential that a freeze condition will exist after the system is shut-down based on predetermined input, such as ambient temperature,... |
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US20110070511 |
COOLING SUBSYSTEM FOR AN ELECTROCHEMICAL FUEL CELL SYSTEM
Improvements in startup time for an electrochemical fuel cell system from freezing and sub-freezing temperatures may be observed by minimizing the coolant volume in the coolant subsystem. In... |
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US20070178342 |
Pulsed coolant control for improved stack cold starting
A system and method for controlling the flow of a cooling fluid through a fuel cell stack during cold system start-up. A pump pumps the cooling fluid through the stack. At cold start-up, the pump... |
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US20130108941 |
QUICK RESTART OF FUEL CELL POWER PLANT AS ALTERNATIVE TO IDLING
A fuel cell power plant keeps track, such as with a fuel-off timer (41), of the extent to which shutdown of the fuel cell power plant has occurred, in case the fuel cell power plant is quickly... |
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US20090110970 |
FUEL CELL SYSTEM, CONTROL METHOD THEREFOR, AND MOVABLE BODY
A fuel cell system has produced water amount detection means that detects the amount of water produced in the fuel cell during low-efficiency operation of the system and gas supply limitation... |
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US20150140461 |
METHOD OF OPERATING A HEATER
A method is provided for operating a heater including a heater housing extending along a heater axis; a plurality of fuel cell stack assemblies disposed within the heater housing along the heater... |
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US20110244350 |
FUEL CELL SYSTEM
An object of the invention is to provide a fuel cell system capable of improving accuracy of water content estimation during a standstill. A fuel cell system includes a fuel cell having a... |
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US20110143245 |
FUEL CELL SYSTEM
A fuel cell system comprising: a fuel cell (1); a cooling water tank (7) and a cooling water circulation passage (32); a hot water tank (10) and a hot water circulation passage (31); a heat... |
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US20150221964 |
FREEZE START-UP METHOD FOR FUEL CELL SYSTEM
Methods are disclosed for starting up a fuel cell system from subzero temperatures using the latent heat of crystallization available in a water supply maintained at above freezing temperature.... |
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US20130004868 |
FUEL CELL SYSTEM AND METHOD FOR OPERATING SAME
A fuel cell system has a fuel cell for generating electricity by reacting a fuel gas with an oxidant gas and an exhaust flow passage for exhausting the fuel exhaust gas exhausted from a fuel... |
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US20070065692 |
PURGE SYSTEM FOR FUEL CELL
A purge system for a fuel cell generates an inactive gas by complete combustion of a fuel supplied to a stack unit, and allows the stack unit to be purged using the inactive gas at the time of... |
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US20130280630 |
Fuel Cell Electricity Production Device and Associated Startup Method
An enclosure houses a fuel cell and defines an enclosed volume around the cell and is provided with openings selectively closed off by mobile shutters for regulate of air circulation between the... |
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US20050019634 |
Device for extending zinc-air battery life for intermittent use
A device for extending zinc-air battery life for intermittent use with a battery chamber that allows air to flow to the batteries when needed, a battery chamber to completely seal off air flow to... |
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US20150093667 |
VERIFICATION OF REPLACEABLE FUEL CARTRIDGES FOR FUEL CELL POWER SYSTEMS
A hydrogen cartridge with a dispensing end, said cartridge having unique identification associated therewith is disclosed, said cartridge providing a supply of hydrogen and being removably fitted... |
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US20070026267 |
Fuel cell system provided with a cooling circuit
A method and apparatus for cooling a fuel cell system. The system includes a fuel cell (1) having a cooling device (15) which forms part of a cooling circuit including a liquid coolant. The... |
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US20090208796 |
COOLING SYSTEM FOR FUEL CELL STACK SHUTDOWN
A cooling system for the shutdown process in a fuel cell powered vehicle system for eliminating the detrimental effects of voltage persistence in the fuel cell including a volume of fluid coolant... |
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US20100227238 |
FUEL CELL SYSTEM AND WATER DISCHARGE CONTROL METHOD FOR THE SYSTEM
There is disclosed a fuel cell system including a fuel cell, a water discharge channel through which a water content discharged from this fuel cell flows, and a water discharge valve which... |
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US20130034787 |
FUEL CELL SYSTEM
A fuel cell system includes a fuel cell, a fuel gas supply channel, a fuel off-gas discharge channel, an oxidant gas supply channel, an oxidant off-gas discharge channel, a first shut valve, a... |
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US20100310954 |
Method for frost protection in a direct methanol fuel cell
Systems and methods for protecting fuel cell systems from frost by introduction of a freezing point depressant into the fuel cell system and/or flushing the fuel cell system with an insert gas are... |
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US20050271908 |
Cooling subsystem for an electrochemical fuel cell system
A method for operating a cooling subsystem of an electrochemical fuel cell system during startup is disclosed. The method comprises directing a startup coolant through an electrochemical fuel cell... |
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US20150104722 |
FREEZE-TOLERANT VALVE
A valve for reducing the likelihood of ice-related blockage in a fuel cell and methods for starting a fuel cell system. The valve includes a valve plate and coupling plate that are cooperative... |
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US20100304239 |
RAPID START-UP AND OPERATING SYSTEM FOR A FUEL CELL POWER PLANT UTILIZING A REFORMATE
A fuel cell power plant (10) includes a power supply (58) that directs a direct current to catalysts (24), (26) of a fuel cell (22) after terminating flow of electricity to a primary load (52),... |
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US20130252123 |
FUEL CELL POWER PLANT OPERATING SYSTEM AND METHOD FOR USE IN SUB-FREEZING AMBIENT CONDITIONS
The fuel cell power plant operating system (10) includes an on/off switching device by-pass circuit (60) to sustain operation of a fuel cell (12) whenever the fuel cell (12) on/off switching... |
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US20110217611 |
FUEL CELL SYSTEM
It is an object of the invention to improve the accuracy of estimating a moisture content and suppress an effect of remaining water at the startup of the fuel cell system. A fuel cell system... |
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US20150099203 |
ELECTRONIC EQUIPMENT PROVIDED WITH BATTERY CHECK DEVICE
Immediately after a main switch is turned ON, a battery check is performed based on a second inhibit voltage LVL2 higher than a first reference voltage LVL1 which is an inhibit voltage level a... |
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US20110091783 |
ELECTRONIC EQUIPMENT PROVIDED WITH BATTERY CHECK DEVICE
Immediately after a main switch is turned ON, a battery check is performed based on a second inhibit voltage LVL2 higher than a first reference voltage LVL1 which is an inhibit voltage level a... |
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US20140272646 |
FUEL CELL SYSTEM AND METHOD TO PREVENT WATER-INDUCED DAMAGE
In one or more embodiments, a fuel cell system includes a fuel cell stack including an anode and a cathode, a first conduit positioned to supply oxygen to the cathode, a second conduit positioned... |
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US20150162637 |
HEATER AND METHOD OF OPERATING
A heater includes a heater housing extending along a heater axis; a fuel cell stack assembly disposed within the heater housing and having a plurality of fuel cells which convert chemical energy... |
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US20060153687 |
Hydrogen operated power system
One form of a hydrogen operated power system according to this invention is a fuel cell system (20) provided with a supply system which supplies a gaseous fuel from a fuel supply tank (24) to a... |
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US20130040218 |
GAS SUPPLY DEVICE
A gas supply device for use in a fuel cell system, comprises: a first injector configured to have a first maximum valve-openable pressure; a second injector arranged in parallel with the first... |
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US20120321976 |
CONTROLLING FUEL CELL
A fuel cell system has a fuel cell that includes at least one cell with an electrolyte membrane, an index value acquirer and a controller. The index value acquirer obtains a temperature index... |
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US20120003551 |
FUEL CELL WITH PURGE MANIFOLD
A fuel cell includes an electrode assembly having an electrolyte between an anode and a cathode for generating an electric current and byproduct water. A porous plate is located adjacent to the... |
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US20120237844 |
Method for Operating a Fuel Cell System
A method serves for operating a fuel cell system with at least a fuel cell and a feed air side air conveyor and an outgoing air side turbine. The fuel cell system is flushed at least during a... |
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US20080026274 |
Flow Shifting Coolant During Freeze Start-Up To Promote Stack Durability And Fast Start-Up
An auxiliary coolant system, for a fuel cell stack system, includes a reversible coolant pump, a control valve, and plumbing lines. The pump enables the reversal of the coolant flow direction in... |
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US20150037698 |
ELECTROCHEMICAL SYSTEM COMPRISING AN INDUCTION HEATING SYSTEM
Electrochemical system comprising a fuel cell comprising a stack (2) of electrochemical cells electrically connected to one another by bipolar plates (A, B, C) interposed between two successive... |
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US20120052408 |
MEMBRANE PERMEATION ADJUSTMENT IN PEM FUEL CELL
A system and method for correcting an estimation of nitrogen in an anode side of a fuel cell stack. The system includes a fuel cell stack and a pressure sensor for measuring pressure in an anode... |
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US20110143246 |
SATURATED VAPOR BLOCK FOR FROZEN FUEL CELL POWER PLANT
A fuel cell power plant includes a cell stack assembly having an anode and a cathode. A component is arranged in fluid connection with at least one of the anode and cathode. The component has a... |
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US20140356745 |
ENERGY SYSTEM HAVING A FUEL CELL ARRANGEMENT
An energy system having a fuel cell arrangement, wherein the fuel cell arrangement has at least one fuel cell and the fuel cell arrangement has at least one first electrical contact and at least... |
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US20120135326 |
BACK-UP FUEL CELL ELECTRIC GENERATOR COMPRISING A COMPACT MANIFOLD BODY, AND METHODS OF MANAGING THE OPERATION THEREOF
A fuel cell electric generator designed for back-up in the absence of network electricity supply. The generator comprises a fuel cell stack, means for supplying the stack with a first and a second... |
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US20150221961 |
FUEL CELL SYSTEM AND CONTROL METHOD THEREOF
A fuel cell system includes a fuel cell, a first combustor, a second combustor, a first heating gas return channel, a second heating gas return channel and a gas supplier. The fuel cell includes a... |
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US20110244346 |
METHOD OF ENTERING AND EXITING A REGENERATIVE/STAND-BY MODE ON A FUEL CELL SYSTEM WHERE THE FUEL CELL IS SEPARATED FROM THE REGENERATIVE SOURCE BY A BLOCKING POWER DIODE
A method for operating a fuel cell stack where electrical energy from regenerative braking is used to operate system loads instead of using fuel cell stack power to conserve hydrogen. A fuel cell... |
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US20110020719 |
FUEL CELL SYSTEM AND METHOD OF CONTROLLING THE SAME
A fuel cell system is equipped with a drive motor, a fuel cell, normal electric power generation means for performing normal electric power generation under a condition that the fuel cell is not... |