|
Match
|
Document |
Document Title |
|
|
US20090305099 |
STARTUP RELIABILITY USING HFR MEASUREMENT
A system and method for improving fuel cell system start-up reliability. The method includes determining if the resistance of the membranes in a fuel cell stack is too high, where the reliability...
|
|
|
US20090305100 |
FUEL CELL ASSEMBLY
The present invention relates to a fuel cell assembly having a fuel cell and an actuating element, which is activated by a control unit, for bringing residual gas out of a fuel flow of the fuel...
|
|
|
US20090305088 |
MODIFIED STARTUP STRATEGY TO IMPROVE STARTUP RELIABILITY AFTER EXTENDED OFF TIME
A system and method for improving fuel cell system start-up reliability. The method includes determining if the resistance of the membranes in a fuel cell stack is too high, where the reliability...
|
|
|
US20090297894 |
Rehydration of Fuel Cells
One or more operating parameters, such as electrical current flow from and air flow to, a fuel cell stack within a fuel cell assembly is periodically modulated during rehydration intervals to...
|
|
|
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...
|
|
|
US20090291342 |
FUEL CELL SYSTEM
A fuel cell system includes a fuel cell ( 1 ) having a plurality of unit cells ( 1 a ) stacked on each other, first and second end plates ( 1 b , 1 c ) between which the plurality of unit cells are...
|
|
|
US20090291333 |
REACTION PRODUCT CONTROL SYSTEM AND PROCESS FOR CONTROLLING A REACTION PRODUCT IN A FUEL CELL
A reaction product control system for a fuel cell that includes a controller and a fuel mass flow sensor linked with the controller. An oxidant mass flow sensor is also linked with the controller....
|
|
|
US20090286115 |
METHOD FOR AVOIDING GASEOUS IMPURITY INCLUSIONS IN AT LEAST ONE GAS CHAMBER OF A FUEL CELL DURING AN IDLE PERIOD AND FUEL CELL EQUIPPED WITH MEANS FOR CARRYING OUT THE METHOD
A method and apparatus are provided for avoiding gaseous impurity inclusions in at least one gas chamber of a fuel cell during an idle period of the fuel cell through the production of a positive...
|
|
|
US20090286111 |
SELF-TUNING THERMAL CONTROL OF AN AUTOMOTIVE FUEL CELL PROPULSION SYSTEM
A fuel cell system that employs an on-line self-tuning algorithm that provides temperature control of a fuel cell stack in response to disturbances on the system. The system includes a thermal...
|
|
|
US20090286109 |
Fuel cell system and driving method of fuel cell system
In a fuel cell system equipped with polymer electrolyte fuel cells, an alternating current generator applies an alternating current of a fixed frequency and a fixed amplitude to the fuel cells. An...
|
|
|
US20090280366 |
ANODE LOOP OBSERVER FOR FUEL CELL SYSTEMS
A system and method for controlling the bleed valve in an anode recirculation loop of a fuel cell system. The system uses a model to determine the concentration of hydrogen in the recirculated gas...
|
|
|
US20090280371 |
FUEL CELL SYSTEM
A compact fuel cell system capable of preventing water from remaining in a pipe is provided. The fuel cell system 1 includes a fuel cell 2, a fuel gas flow control device 3 for controlling...
|
|
|
US20090274940 |
FUEL CELL AND FUEL CELL SYSTEM
A fuel cell ( 101 ) of the present invention includes: a stack ( 1 ) formed such that one or more reacting portions (P) which generate electric power and heat by a reaction of a reactant gas and...
|
|
|
US20090274935 |
Fuel Cell System Designed to Ensure Stability of Operation
A fuel cell control system is provided which is designed to ensure the stability of operation of a fuel cell stack. The system includes a magnetic sensor and a controller. The magnetic sensor works...
|
|
|
US20090274939 |
FUEL CELL SYSTEM, FUEL CELL SYSTEM DRIVE METHOD AND FUEL CONTAINER FOR POWER GENERATION
A fuel cell system having a fuel cell which performs a power generation operation with fuel for power generation of a fuel container; a water supply control section which extracts water from the...
|
|
|
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...
|
|
|
US20090269633 |
HYDROGEN GAS SUPPLY DEVICE AND FUEL CELL APPARATUS
The hydrogen gas supply device capable of detecting that the hydrogen gas storage volume of a tank has decreased to a predetermined value or less including a plurality of tanks each filled with a...
|
|
|
US20090269626 |
Method of optimizing operating efficiency of fuel cells
A method of operating a fuel cell electrochemical system includes receiving at least one of a cost of electricity and a cost of fuel and adjusting at least one of an operating efficiency and...
|
|
|
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...
|
|
|
US20090269628 |
FUEL CELL SYSTEM, ESTIMATION DEVICE OF AMOUNT OF ANODE GAS TO BE GENERATED AND ESTIMATION METHOD OF AMOUNT OF ANODE GAS TO BE GENERATED
There is disclosed a fuel cell system or the like capable of sufficiently reducing an exhaust hydrogen concentration even in a case where a fuel cell is operated in a state of a low power...
|
|
|
US20090258268 |
FUEL CELL SYSTEM WITH FUEL CELL STACK RECEPTACLE
A fuel cell system with a fuel cell stack receptacle that encloses at least one fuel cell stack and at least one fuel cell stack peripheral, and retains the fuel cell stack(s) in a compressed state.
|
|
|
US20090258267 |
Apparatus for solid-oxide fuel cell shutdown
An emergency shutdown apparatus for a solid-oxide fuel cell system, including a fuel cell stack, comprises a reservoir containing a reducing fluid, a valve enabling or preventing flow of the...
|
|
|
US20090258270 |
Fuel Cell System and Mobile Article
There is disclosed a fuel cell system including a fuel cell for generating electric power by a reaction of a fuel gas an oxidation gas, and a power storage device, and being configured to perform a...
|
|
|
US20090253007 |
Method and apparatus for anode oxidation prevention and cooling of a solid-oxide fuel cell stack
An apparatus and method for a normal system shutdown of a SOFC system implements a control strategy that utilizes existing system hardware and operating processes already used during normal...
|
|
|
US20090253008 |
FUEL CELL SYSTEM
A fuel cell system of the present invention includes a fuel cell, a supply channel which supplies, to the fuel cell, a fuel gas supplied from a fuel supply source, a variable gas supply device...
|
|
|
US20090246571 |
DETERMINATION OF THE LAMBDA VALUE OF REFORMATE WITH THE AID OF A FUEL CELL
The invention relates to a process for determining the lambda value (λ actual ) of reformate provided for supply to a fuel cell stack, in which the no-load voltage across at least one fuel cell...
|
|
|
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...
|
|
|
US20090246579 |
FUEL CELL SYSTEM AND FLOW CONTROL MECHANISM THEREOF
A fuel cell system and a flow control mechanism thereof are provided. The fuel cell system includes a plurality of fuel cells and the flow control mechanism. The flow control mechanism includes a...
|
|
|
US20090246570 |
METHOD AND APPARATUS FOR MEASURING CROSSOVER LOSS OF FUEL CELL
When using a measurement of a crossover current density by the Gotesfeld method or a measurement of a methanol permeation coefficient by gas chromatography or by liquid chromatography, a measure...
|
|
|
US20090233132 |
Fuel Cell System and Mobile Article
A fuel cell system ( 1 ) is provided with a fuel cell ( 10 ); a fuel supply system ( 3 ) for supplying the fuel cell ( 10 ) with a fuel gas; an injector ( 35 ) for adjusting a pressure on the...
|
|
|
US20090233127 |
FUEL CELL SYSTEM
In a viewpoint of the invention, a fuel cell system includes a fuel cell configured to generate a electric power by using fuel; a first assisting power source; a protecting circuit connected to the...
|
|
|
US20090233131 |
POLYMER ELECTROLYTE FUEL CELL AND MANUFACTURING METHOD FOR ELECTRODE-MEMBRANE-FRAME ASSEMBLY
A MEA-frame assembly is arranged in a mold for injection molding to form a first flow passage arranged so as to extend along the outer periphery of an electrode between the outer periphery of the...
|
|
|
US20090226772 |
Apparatus, System, and Method For Supplying Fuel To And Removing Waste From Fuel Cells
Described herein are fuel cell system refueling devices and related systems and methods. In one embodiment, a refueling device includes a fuel handling unit that includes a fuel port and a fuel...
|
|
|
US20090226782 |
POLYMER ELECTROLYTE FUEL CELL AND MANUFACTURING METHOD FOR ELECTRODE-MEMBRANE-FRAME ASSEMBLY
A MEA-frame assembly is arranged in a mold for injection molding to form a first flow passage arranged so as to extend along the outer periphery of an electrode between the outer periphery of the...
|
|
|
US20090220833 |
Fuel Cell Device
A fuel cell device ( 10 ) for generating electricity from hydrogen and oxygen and comprising a membrane electrode assembly (MEA) ( 12 ) and a bipolar separator plate (BSP) ( 14 ) supported adjacent...
|
|
|
US20090220828 |
SYSTEM AND METHOD FOR FUEL CELL START UP
Start up systems and methods for a fuel cell system are disclosed. The start up systems and methods include supplying a hydrogen containing fluid to both the cathode electrode and the anode...
|
|
|
US20090220832 |
Hydrogen passivation shut down system for a fuel cell power plant
The invention is a hydrogen passivation shut down system for a fuel cell power plant ( 10, 200 ). During shut down of the plant ( 10, 200 ), hydrogen fuel is permitted to transfer between an anode...
|
|
|
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...
|
|
|
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...
|
|
|
US20090214912 |
ELECTRONIC APPARATUS
A first battery includes a secondary battery which is rechargeable by a fuel cell. A second battery does not perform all the operations of an electronic apparatus but supply an electric power to...
|
|
|
US20090208795 |
THREE-WAY DIVERTER ASSEMBLY FOR A FUEL CELL SYSTEM
A three-way diverter assembly with a contoured valve is provided. The three-way diverter assembly includes a housing having a first inlet, a second inlet, a first outlet, and a second outlet. The...
|
|
|
US20090208793 |
HYBRID TYPE POWER SUPPLYING APPARATUS
Disclosed is a hybrid-type power supplying apparatus which may use a fuel cell device as a main power supplier for a robot and a rechargeable battery as an auxiliary power supplier for the robot....
|
|
|
US20090202877 |
CONCENTRATION DISTRIBUTION ESTIMATION DEVICE FOR IMPURITY IN ANODE SIDE, AND FUEL CELL SYSTEM USING THE DEVICE
The standard permeation amount of an impurity substance, that is, the permeation amount per unit area of the impurity substance under a standard concentration is calculated from the gas pressures...
|
|
|
US20090197125 |
Method for Maximum Net Power Calculation for Fuel Cell System Based on Online Polarization Curve Estimation
An algorithm for determining the maximum net power available from a fuel cell stack as the stack degrades over time using an online adaptive estimation of a polarization curve of the stack. The...
|
|
|
US20090197132 |
FUEL-CELL STRUCTURE
A fuel-cell structure is provided. The fuel-cell structure includes a base, at least one cell unit, a first supplier, a second supplier and a third supplier. The cell unit disposed on the base...
|
|
|
US20090191432 |
FUEL CELL SYSTEM CATHODE INLET RELATIVE HUMIDITY CONTROL
A fuel cell system ( 100 ) and operational methods ( 200, 300 and 400 ) are described that utilize a combination of sensor input and component models for causing the system's cathode effluent (...
|
|
|
US20090176138 |
FUEL-CELL POWER-GENERATION SYSTEM AND METHOD
A condenser condenses an unused exhaust gas exhausted from a fuel cell and recovers water, condensation-capacity detection means always monitors the condensation capacity of the condenser, control...
|
|
|
US20090169938 |
FUEL CELL APPARATUS
A fuel cell is comprised of an electrode structure including a cathode, an anode and an electrolyte put between the cathode and the anode; a fuel gas passage configured to conduct fuel to the...
|
|
|
US20090169926 |
METHOD FOR STOPPING POWER GENERATION OF FUEL CELL SYSTEM AND FUEL CELL SYSTEM INCLUDING POWER GENERATION STOPPING UNIT
There is provided a method for stopping power generation of fuel cell system including: a fuel cell having a fuel electrode and an oxidizer electrode; a fuel container; and a fuel flow path for...
|
|
|
US20090162710 |
FUEL CELL SYSTEM
A fuel cell system includes: a fuel cell stack for generating electric power by receiving supply of a reaction gas; an air compressor for scavenging water remaining in the fuel cell stack when...
|