| Patent application number | Description | Published |
|---|
| 20080241636 | SEALED WATER VAPOR TRANSFER UNIT ASSEMBLY WITH INTEGRATED LOAD TRANSFERRING STRUCTURE - A water vapor transfer unit assembly is disclosed, the water vapor transfer unit assembly including a plurality of water vapor transfer units having a fluid permeable membrane and a plurality of supports disposed within a sealing frame adjacent an end plate of a fuel cell stack, wherein the sealing frame is adapted to provide support to the end plate and a fuel cell stack of the fuel cell stack system. | 10-02-2008 |
| 20080305380 | FUEL CELL COMPRESSION RETENTION SYSTEM USING COMPLIANT STRAPPING - A fuel cell system is provided including a fuel cell stack having a first end and second end. The fuel cell stack includes at least one fuel cell having a membrane-electrode assembly disposed between adjacent gas diffusion layers. The fuel cell system further includes a compression retention system having a plurality of compliant straps adapted to apply a compressive force to the fuel cell stack. The plurality of compliant straps are further adapted to accommodate an expansion of the fuel cell stack during an operation thereof and maintain the compressive force within a desired range. | 12-11-2008 |
| 20080311457 | FUEL CELL STACK COMPRESSION RETENTION SYSTEM USING OVERLAPPING SHEETS - A fuel cell system is provided including a fuel cell stack having a plurality of fuel cells disposed between a first end unit and a second end unit. The fuel cell system includes a compression retention system comprising a first sheet coupled to the first end unit and a second sheet coupled to the second end unit. A plurality of springs is disposed between the first sheet and the second sheet and is adapted to apply a compressive force to the fuel cell stack. The claimed invention includes methods for assembling the fuel cell system. | 12-18-2008 |
| 20090155641 | MULTIPLE INJECTOR AND EJECTOR ARRAY - A fluid injection/ejection system for a fuel cell stack is disclosed, wherein the system includes an array of injectors and ejectors that support hydrogen recirculation and maximize a use of the hydrogen and an efficiency of the fuel cell stack. | 06-18-2009 |
| 20090208795 | 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 first inlet and the second inlet are adapted to receive a fluid. The contoured valve is disposed in the housing adjacent the first inlet. The contoured valve is rotatable about an axis from a first positional limit to a second positional limit, and to a plurality of positions therebetween. Fuel cell systems having the three-way diverter assembly for regulating temperature and humidity of a fuel cell stack are also provided. | 08-20-2009 |
| 20090239106 | INTEGRATED CHARGE AIR HEAT EXCHANGER - An integrated charge air heat exchanger for use in a vehicle fuel cell system is provided. The integrated charge air heat exchanger includes a plurality of coolant conduits adapted for a coolant fluid to flow therethrough. The integrated charge air heat exchanger further includes a plurality of heating elements and a plurality of fin elements. One heating element is disposed on a first surface of each of the coolant conduits, and one of the fin elements is disposed on a second surface of each of the coolant conduits. A method for heating the coolant fluid in a first operational mode and cooling a charge air stream in a second operational mode is also provided. | 09-24-2009 |
| 20090317676 | THREE-WAY DIVERTER ASSEMBLY FOR A FUEL CELL SYSTEM - A three-way diverter assembly with a movable member 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 first inlet and the second inlet are adapted to receive a fluid. The movable member, disposed in the housing adjacent the first inlet, is rotatable about an axis from a first positional limit to a second positional limit, and selectively positional therebetween. Fuel cell systems having the three-way diverter assembly for regulating temperature and humidity of a fuel cell stack are also provided. | 12-24-2009 |
| 20100068046 | VOLUTE OF LOWER END UNIT OF FUEL CELL SYSTEM - A lower end unit of a fuel cell system defines a volute of a pump. The volute may have a reinforcement that is disposed on a working area of the volute. | 03-18-2010 |
| 20100255399 | FUEL CELL EJECTOR WITH INTEGRATED CHECK VALVE - An ejector for a fuel cell stack is disclosed, wherein the ejector includes an integrated check valve that supports hydrogen recirculation and militates against a backflow of hydrogen flowing through the ejector. | 10-07-2010 |
| 20100279195 | Aligning Method For Repeating And Non-Repeating Units In A Fuel Cell Stack - An alignment system and method for assembling a fuel cell stack. Components of the fuel cell stack have internal alignment features and are aligned to a predetermined orientation during assembly. The system and method allow fuel cell stacks to be assembled within high tolerance levels while improving access to each component during assembly. Additionally, the system and method can provide additional rigidity to a fuel cell stack. | 11-04-2010 |
