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| Number | Title | Issue Date |
| 7160641 | Methods to cool a fuel cell and if desired heat a hybrid bed simultaneously A technique for rejecting heat from a fuel cell stack. Heated stack coolant from the fuel cell stack is directed to a heat pump module where it is compressed to raise its temperature. The heated and compressed coolant is then directed through a radiator that cools t... | 01/09/2007 |
| 7112385 | Flow restrictors in fuel cell flow-field Flow-field for a PEM fuel cell having a plurality of flow-channels including flow-restrictors strategically located throughout to achieve desired pressure differentials between fuel and oxidant supply and exhaust manifolds, and between adjacent flow-channels. A pref... | 09/26/2006 |
| 7081312 | Multiple stage combustion process to maintain a controllable reformation temperature profile A reaction vessel that integrates and balances an endothermic process with at least one exothermic process of the fuel cell system. Preferably the exothermic process is conducted in stages to provide more uniform and/or controllable heat generation and exchange, and... | 07/25/2006 |
| 7081193 | Multi-stack isolation detection system A system for detecting an isolation fault in a multi-stack fuel cell system. The system determines the percentage of the voltage from each stack in the multi-stack that contributes to the voltage at a positive terminal and a negative terminal of the stack when a no-... | 07/25/2006 |
| 7067212 | Pressure regulation of a fuel cell hydrogen tank system A delivery system for the delivery of a gaseous fuel such as for example hydrogen, to a consumer, in particular to a fuel cell stack, wherein the fuel comes from a source with a higher pressure level, the delivery system comprising at least one mechanical pressure r... | 06/27/2006 |
| 7067211 | Cogeneration system for a fuel cell A fuel cell system and process using an organic Rankine cycle to produce shaft work to operate a fuel cell system component such as an air compressor. The air compressor delivers compressed air to a fuel cell stack. The steps of the Rankine cycle include pumping a l... | 06/27/2006 |
| 7066114 | Reverse fan operation for vehicle cooling system A system for reducing the time that it takes a vehicle fuel cell engine to reach its operating temperature at vehicle start-up. The system includes a radiator and a fan, where a cooling fluid from the engine is directed through the radiator where it is cooled by air... | 06/27/2006 |
| 7059382 | Method of incorporating brominated compounds as additives to expanded polystyrene molded patterns for use in lost foam aluminum casting A process including topically applying a finely divided powder onto a plurality of polystyrene beads. The finely divided powder includes brominated compounds including a brominated alkane having at least one substituent aromatic group. The polystyrene beads are pre-... | 06/13/2006 |
| 7036466 | Thermal management system and method for vehicle electrochemical engine A thermal management system of an electrochemical engine comprises a radiator provided with a wicking mechanism, a coolant pump fluidly connected to the radiator, a water tank, and a water pump. The water tank is located in the void spaces around fuel storage tanks,... | 05/02/2006 |
| 7011693 | Control of a hydrogen purifying pressure swing adsorption unit in fuel processor module for hydrogen generation A PSA unit for purifying hydrogen in a fuel processor system. The PSA unit employs rotary valves that cycle the pressurization of vessels, including an adsorbent, between a high pressure state and a low pressure state. The purified hydrogen is released from the vess... | 03/14/2006 |
| 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 reactor downstream of the fuel reforming processor and wherein the wate... | 03/07/2006 |
| 6959249 | Load following algorithm for a fuel cell based system A fuel cell generation system employing a load following algorithm that provides the desired output power from the fuel cell on demand. The system includes a draw current sensor that measures the current drawn from the fuel cell used to satisfy the system load deman... | 10/25/2005 |
| 6939633 | Fuel cell shutdown and startup using a cathode recycle loop A method and device for operating a fuel cell system. A recirculation loop coupled to a fuel cell cathode ensures that fluids passing through the cathode are recycled, thereby enabling reaction between residual oxygen in the recycled fluid and fuel that has been int... | 09/06/2005 |
| 6939631 | Fuel cell system and method of operation The present invention provides a method of operating a fuel cell system and a fuel cell system that can adjust the operating pressure of the fuel cell system to maximize efficiency. This present invention recognizes that under certain operating conditions appropriat... | 09/06/2005 |
| 6932917 | Magnetorheological fluids One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fl... | 08/23/2005 |
| 6929756 | Magnetorheological fluids with a molybdenum-amine complex One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fl... | 08/16/2005 |
| 6931293 | Method for early optimization of a manufacturing system design A method for designing manufacturing systems with speed, flexibility, continuity includes identifying design issues with respect to at least one system concern (e.g., safety, reliability, quality, etc.) at the beginning of the design process. Proposed designs are ev... | 08/16/2005 |
| 6921516 | Reactor system including auto ignition and carbon suppression foam A reactor system including a reactor housing having an inlet portion defined at one end of the housing and having a discharge opening formed in the housing at an opposite end. An air intake charge line is connected to the housing for charging air into the inlet port... | 07/26/2005 |
| 6905791 | Fuel cell system and method of operation in which temperatures in the freezing range of water can occur A method and apparatus for the operation of a fuel cell system to avoid the freezing of water resident in one or more fuel cells during periods of system inactivity. Each fuel cell includes at least an anode, a cathode and a membrane configured to establish electrol... | 06/14/2005 |
| 6901897 | Method and intake cam for retaining exhaust residuals for emissions reduction in a diesel engine A diesel engine intake cam profile creates two intake valve events separated by a short dwell period each engine cycle. A relatively low valve lift during an engine exhaust event allows a portion of the exhaust gas to flow into an intake manifold and mix with intake... | 06/07/2005 |
| 6902838 | Cogeneration system for a fuel cell A fuel cell system and process using an organic Rankine cycle to produce shaft work to operate a fuel cell system component such as an air compressor. The air compressor delivers compressed air to a fuel cell stack. The steps of the Rankine cycle include pumping a l... | 06/07/2005 |
| 6902768 | Method of producing thermally sprayed metallic coating with additives The cylinder walls of light metal engine blocks are thermally spray coated with a ferrous-based coating including aluminum using an HVOF device. A ferrous-based wire is fed to the HVOF device to locate a tip end of the wire in a high temperature zone of the device. ... | 06/07/2005 |
| 6899861 | Heat exchanger mechanization to transfer reformate energy to steam and air A heat exchanger design is provided for optimal transfer of thermal energy between a primary reactor-out reformate and a primary reactor-in steam and air. In particular, one embodiment of the present invention comprises a prime-surface true counterflow heat exchange... | 05/31/2005 |
| 6896479 | Turbocharger rotor A turbocharger rotor has a turbine wheel and shaft, a compressor wheel and adapter and a separate thrust runner clamped together by a fastener rod. The adapter is piloted on the shaft and the thrust runner is piloted on the adapter, which has annular ends engaging t... | 05/24/2005 |
| 6893756 | Lambda sensing with a fuel cell stack A sensor for monitoring the lambda of a component of a reactant feed stream flowing through a fuel cell stack. The sensor comprises one or more fuel cells that are sensitive to a change in lambda of a specific component of a reactant feed stream flowing through the ... | 05/17/2005 |
| 6886757 | Nozzle assembly for HVOF thermal spray system A nozzle assembly for a HVOF thermal metallic spray coating system includes an inner tube, a middle tube and an outer tube which are concentrically arranged about an axis of the nozzle assembly and are spaced to provide annular, concentric gas flow passages for oxyg... | 05/03/2005 |
| 6887613 | Corrosion resistant PEM fuel cell The present invention relates to an electrochemical cell having a catalytic electrode and an electrically conductive contact element facing the electrode. The electrically conductive contact element conducts electrical current from the electrode and has a surface co... | 05/03/2005 |
| 6887602 | Rapid response fuel cell system Method and apparatus for supplying extra/booster steam and/or fuel vapor to the fuel processor of a fuel cell system during surges in power demanded from the fuel cell. Hot water and/or liquid fuel is/are stored under pressure until needed. When needed during power ... | 05/03/2005 |
| 6884528 | Cogeneration system for a fuel cell A fuel cell system and process using an organic Rankine cycle to produce shaft work to operate a fuel cell system component such as an air compressor. The air compressor delivers compressed air to a fuel cell stack. The steps of the Rankine cycle include pumping a l... | 04/26/2005 |
| 6884022 | Diesel engine water pump with improved water seal An improved diesel engine water pump includes three main features that aid in extending the maintenance-free life of the pump. The impeller shaft is carried by tapered roller shaft support bearings of which the impeller bearing has a floating outer race that is urge... | 04/26/2005 |
| 6881353 | Magnetorheological fluids with stearate and thiophosphate additives One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fl... | 04/19/2005 |
| 6874703 | Anti-bounce needle valve for a fuel injector An anti-bounce needle valve for a fuel injector, wherein the needle inherently incorporates the anti-bounce feature. The needle has a conventionally configured exterior for interfacing with a valve seat and a tip body of a conventional fuel injector. The needle is c... | 04/05/2005 |
| 6871598 | Arrangement of radial bogie An arrangement for self-steering, radial bogie, truck or vehicle frame for locomotives and other railroad vehicles, which includes steering beams for and located behind their respective leading and trailing wheelsets, and whose rotary motions are coupled by an inter... | 03/29/2005 |
| 6866028 | Emission reduction kit for EMD diesel engines Engine reconfiguration kits are developed for NOx emission reduction in Electro-Motive Division of General Motors Corporation model 645 diesel engines. The kits feature improved unit fuel injectors providing better fuel atomization with retarded injection timing and... | 03/15/2005 |
| 6859763 | Technique for computing a measure on an ultrasonic signal having application to identify valve defects in operating engines A measurement technique that generates a number value identifying the width of a noisy pulse in an analog signal that has particular application for determining whether a defect exists in a cylinder valve of a locomotive diesel engine. The algorithm samples the anal... | 02/22/2005 |
| 6849352 | Fuel cell system and method of operating a fuel cell system A fuel cell system comprising a plurality of fuel cells, in particular in the form of low temperature fuel cells, which are assembled into a stack, the system having a cathode side with a cathode inlet and a cathode outlet, with oxygen or an oxygen containing gas, s... | 02/01/2005 |
| 6835219 | Rapid startup of fuel processor using water adsorption An apparatus and method is disclosed for rapidly heating fuel processor components during startup of a fuel cell powered vehicle. Rapid heating is achieved by placing a water adsorbent downstream of the fuel processor's primary reactor, which converts a hydrocarbon-... | 12/28/2004 |
| 6830842 | Hydrogen purged motor for anode re-circulation blower A fuel cell system that can be used to power a vehicle is disclosed. The system includes a fuel cell stack, which uses hydrogen and an oxidizer to generate electricity, and a re-circulation loop that returns unreacted hydrogen to the fuel cell stack. The system incl... | 12/14/2004 |
| 6827065 | Diesel injection system with dual flow fuel line A double walled fuel line connects diesel fuel injectors in a common rail system. An inner line carries high pressure fuel from a fuel pump to the fuel injectors. Low pressure return fuel flows back through an outer fuel line which acts as a return line. The double ... | 12/07/2004 |
| 6824701 | Magnetorheological fluids with an additive package One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fl... | 11/30/2004 |
