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7067209 |
High temperature reactant recycling for PEM fuel cell humidification
A fuel cell stack has an air inlet manifold ( 21 ), an air turnaround manifold ( 22 ) and an air exit manifold ( 23 ); a coolant inlet is adjacent said air exit manifold; a fuel inlet manifold ( 16...
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7063905 |
Fuel cell H2 exhaust conversion
A fuel cell system having first and second fuel cells that each receive anode reactant flows and cathode reactant flows. Each of the fuel cells uses the reactant flows to produce electricity. The...
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7056423 |
Apparatus for producing hydrogen, electrochemical device, method for producing hydrogen and method for generating electrochemical energy
The invention provides an apparatus for producing hydrogen and a method for producing hydrogen which effectively produce hydrogen in the low humidity atmosphere without humidifier or dehumidifier,...
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7056610 |
Alkaline direct methanol fuel cell
The invention relates to a fuel cell, in particular a methanol fuel cell which has an anion-conductive membrane. The protons required for the formation of hydroxyl ions are supplied to the cathode...
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7045232 |
Fuel cell system and method for producing electric energy using a fuel cell system
A fuel-cell system, particularly a drive system for a motor vehicle, includes an autothermal reformer unit for producing hydrogen from a raw material in order to operate a downstream fuel cell...
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7045238 |
SORFC power and oxygen generation method and system
A solid oxide regenerative fuel cell system is used to supply power in a fuel cell mode and to generate metabolic oxygen and a hydrocarbon fuel reserve in an electrolysis mode. The system may also...
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7045231 |
Direct hydrocarbon reforming in protonic ceramic fuel cells by electrolyte steam permeation
A process for converting hydrocarbons and water vapor into hydrogen, carbon monoxide, and carbon dioxide; a fuel cell device; and a process of utilizing the fuel cell to convert chemical energy to...
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7045230 |
Chemical hydride hydrogen generation system and fuel cell stack incorporating a common heat transfer circuit
A chemical hydride hydrogen generation system and an energy system incorporating the same are provided. The hydrogen generation system has: a storage means for storing a chemical hydride solution;...
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7041272 |
Systems and processes for providing hydrogen to fuel cells
A process and system for providing a hydrogen-containing gas stream to a fuel cell anode that includes providing a hydrogen-containing gas stream that includes carbon monoxide, introducing the...
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7040431 |
Fuel cell hybrid vehicle with automatically watered aqueous batteries
A fuel cell hybrid vehicle utilizing flooded aqueous battery or batteries operatively coupled to a fuel cell stack, an electric drive motor, and an integrated watering system, the integrated...
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7041410 |
Fuel cell stack in a pressure vessel
Fuel cell stack in which anodes and cathodes, and preferably also the membrane separating these, are made of relatively brittle material. To prevent the risk of breakage, and thus leaks, these are...
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7036314 |
Method for treating and distributing water generated in a self-contained water using unit
Water for use in a self-contained water using unit, such as an aircraft, watercraft, ground conveyance, or stationary unit, is treated so that water of different qualities can be distributed to...
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7037615 |
Trapping method and system for energy conversion devices
A trap for an energy conversion device comprises a trapping system comprising a filter element and a trap element, and fluidly coupled to a reforming system. The trapping system is monitored by a...
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7037609 |
Fuel circuit of the fuel cell system
To provide a fuel circuit of the fuel cell system, wherein a fuel pump can be scaled down, power consumption can be reduced, and required amount of fuel circulation is kept in the time of the...
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7037612 |
Moisture stabilization for a fuel cell power plant system
An arrangement and process are provided for regulating the humidification or dew point of inlet air supplied ( 124, 224, 324, 424 ) to combustion-supported reaction means ( 20, 120 ) of a fuel...
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7033688 |
Apparatus and method for controlling a fuel cell system
The invention provides integrated fuel cell systems and associated operating methods wherein oxidant flow is controlled in response to an oxygen sensor in an exhaust stream of a fuel cell exhaust...
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7033687 |
Fuel cell power generation system and method of controlling fuel cell power generation
A fuel cell power generation system has inert gas supply means of supplying a particular inert gas at least to the reformer; and alternative gas supply means of supplying an alternative gas other...
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7029778 |
Fuel cell with simultaneous gas generation
The present invention is a method of generating electrical energy from chemically generated hydrogen and oxygen including the steps of establishing a first reaction compartment, generating hydrogen...
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7025875 |
Diesel fuel reforming strategy
A method of using a diesel reforming strategy is disclosed. The method comprises supplying diesel fuel to a fractional distillation device. The diesel fuel is fractionally distilled to produce a...
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7025903 |
Reformer system process
A process for removing contaminants from a reformer comprises removal of particulate matter under operating, or stand-by conditions, or at the start of a shutdown procedure, by introducing a gas...
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7018732 |
System and method for management of gas and water in fuel cell system
A fuel cell system has: a fuel cell having a first reactant inlet, a first reactant outlet, a second reactant inlet, a second reactant outlet, and optionally a coolant inlet and coolant outlet. A...
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7014953 |
Regenerative bipolar fuel cell
The present invention discloses a fuel cell, which incorporates a bipolar plate. The regenerative bipolar fuel cell of the present invention contains at least one hydrogen electrode in contact with...
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7014930 |
Apparatus and method for operating a fuel reformer to generate multiple reformate gases
A fuel reformer is operated in one mode of operation to generate and supply a particular quantity and/or composition of reformate gas to a first component such as a NO X trap, and then is operated...
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7011901 |
Fuel cell generation system and method
A fuel cell generation system, in which an interior of a package is partitioned into a gas path compartment and a non gas compartment with a partition wall, a component through which flammable gas...
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7008707 |
Direct water vaporization for fuel processor startup and transients
A fuel cell system including a fuel reforming processor having a catalyst therein constructed and arranged to produce a reformate stream including hydrogen and carbon monoxide, a water gas shift...
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7008706 |
Drive system incorporating a hybrid fuel cell
A vehicle drive system powered by a hybrid fuel cell including at least one cathode, at least one anode, and at least one auxiliary electrode. The auxiliary electrode works in combination with the...
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7008710 |
Fuel cell system with air cooling device
A fuel cell system includes a fuel cell stack, an air supply system including a blower for driving the air to the fuel cell stack and an air humidifier for humidifying the air supplied to the fuel...
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6998184 |
Hybrid fuel cell
A hybrid fuel cell/battery including at least one cathode, at least one anode, and at least one auxiliary electrode. The auxiliary electrode works in combination with the anode to provide a current...
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6998096 |
Fuel reformer for use in fuel cell
A reformer for a solid state polymer electrolyte fuel cell includes a burner 1 forming a flame, a reforming portion 2 surrounding the burner and having an exhaust port 22 and exhausting a...
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6994928 |
System and method for regulating steam pressure in a fuel cell system
A system and method for regulating steam pressure. The system includes a steam source, a reformer, and a pressure regulator. The reformer includes an inlet that is in fluid communication with a...
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6994929 |
Electrochemical hydrogen compressor for electrochemical cell system and method for controlling
In one embodiment, an electrochemical cell system comprises: a fuel cell stack comprising a fuel cell having a fuel cell hydrogen inlet and a fuel cell hydrogen outlet, and a first electrochemical...
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6989209 |
Power generation method
A fuel cell module includes at least one fuel cell stack comprising a number of fuel cell units. An inlet is configured to receive an oxidant flow for supplying the fuel cell stack. An outlet is...
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6989206 |
Water recycling in fuel cell systems
Systems and methods of recycling water from the cathode based on passive water transport mechanisms are described. These systems and methods allow water to be recycled in a fuel cell without moving...
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6986957 |
Fuel cell system
A direct methanol fuel cell system 100 uses dissolved catalyst to promote a fuel cell reaction that takes place in an anode sub-chamber 110 of a fuel cell 102. According to the preferred...
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6982128 |
Co-catalyst proton exchange membrane fuel cell utilizing borohydride fuels
Two co-catalysts selected from the transitional metals can be employed in proton exchange membrane fuel cells to catalyze a borohydride anolyte, such that diatomic hydrogen produced on the surface...
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6979505 |
Method and apparatus for removal of contaminants from a hydrogen processor feed stream, as in a fuel cell power plant
Method and apparatus are provided for removing contaminants from a hydrogen processor feed stream, as in a fuel cell power plant ( 110 ). Inlet oxidant ( 38 ), typically air, required by a...
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6978617 |
Power generation system using a combustion system and a fuel cell
A regenerative fuel cell is combined with a combustion engine such as a Pulse Detonation Engine (PDE) to create a closed-loop power generation system. Stored hydrogen and oxygen are used by the...
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6977119 |
Fuel cell transient control scheme
The invention provides a fuel cell system, including a fuel cell having an anode chamber and a cathode chamber, wherein the anode chamber is in fluid communication with a hydrogen reservoir, and...
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6977002 |
Fuel reforming apparatus and the method of starting it
A reforming catalyst is composed of a plurality of catalyst layers arranged in series, and when started from a low temperature, preheated air is supplied in parallel to a point upstream of each...
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6977118 |
Optimization of the operating parameters of a direct methanol fuel cell system
The invention relates to a method of optimizing the operating parameters (cathode pressure and operating temperature) in a low-temperature fuel cell. The parameters are selected in such a way that...
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6974644 |
Internal reforming fuel cell assembly with selectively adjustable direct and indirect internal reforming
A fuel cell system in which a fuel cell assembly having one or more fuel cells is adapted to include one or more direct internal reforming passages and one or more indirect internal reforming...
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6969562 |
Fuel cell power generation method and system
A hydrogen-containing gas suitable for use in a fuel cell, especially in a proton exchange membrane fuel cell, is produced from a digestion gas (b) yielded in methane fermentation of organic matter...
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6967063 |
Autothermal hydrodesulfurizing reforming method and catalyst
A method for reforming a sulfur-containing carbonaceous fuel in which the sulfur-containing carbonaceous fuel is mixed with H 2 O and an oxidant, forming a fuel/H 2 O/oxidant mixture. The fuel H 2...
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6967064 |
Co-flow anode/cathode supply heat exchanger for a solid-oxide fuel cell assembly
In a solid-oxide fuel cell assembly, a co-flow heat exchanger is provided in the flow paths of the reformate gas and the cathode air ahead of the fuel cell stack, the reformate gas being on one...
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6964820 |
Water recirculation in fuel cell power plant
A water pump ( 4 ) recirculates water from a water tank ( 3 ) in a heat exchanger ( 2 ) and a fuel cell stack ( 1 ) of a fuel cell power plant via a recirculation passage ( 5 ) A water temperature...
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6960400 |
Fuel cell power generation system and control method thereof
When power failure of a commercial power source is detected, an inverter interrupts power supply to a power line extending between the commercial power source and a load via a circuit breaker. Then...
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6959730 |
Single valve fuel cell stack gas flow and containment
A vane ( 31 ) at the juncture of orthogonal conduits ( 25–28 ) allows flow of air to and from the air inlet/outlet manifold ( 12 ) of a fuel cell stack ( 11 ) when it is disposed in a first...
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6958195 |
Steam generator for a PEM fuel cell power plant
A burner assembly includes a catalyzed burner for combusting an anode exhaust stream from a polymer electrolyte membrane (PEM) fuel cell power plant. The catalysts coated onto the burner can be...
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6955860 |
Control of start-up combustor for fuel cell power plant
In a fuel cell system, a start-up combustor ( 10 ) combusts a gaseous mixture of fuel supplied by an injector ( 15 ) and air supplied from a valve ( 12 C) at a rich air-fuel ratio, and supplies...
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6946209 |
Desulfurization for fuel cell systems using sulfur separating membranes
A process to desulfurize a fuel gas, such as natural gas, for use as a feed fuel for a fuel cell is characterized by providing a feed stream ( 10 ) of sulfur containing gas, passing part of that as...
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