摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A method for preparing a bipolar plate assembly for a fuel cell stack is provided. The method first includes the steps of providing a first unipolar plate having a first active area with a plurality of channels formed on a first inner surface thereof, and a second unipolar plate having a second active area with a plurality of lands formed on a second inner surface thereof. The first unipolar plate and the second unipolar plate are aligned to dispose the first active area adjacent the second active area. A first pressure is then applied to the first and second active areas to pre-nest the first active area and the second active area. The perimeters of the first and second unipolar plates are then joined. A clamping fixture and associated method for assembling the bipolar plate assembly is also provided.
摘要:
A method for preparing a bipolar plate assembly for a fuel cell stack is provided. The method first includes the steps of providing a first unipolar plate having a first active area with a plurality of channels formed on a first inner surface thereof, and a second unipolar plate having a second active area with a plurality of lands formed on a second inner surface thereof. The first unipolar plate and the second unipolar plate are aligned to dispose the first active area adjacent the second active area. A first pressure is then applied to the first and second active areas to pre-nest the first active area and the second active area. The perimeters of the first and second unipolar plates are then joined. A clamping fixture and associated method for assembling the bipolar plate assembly is also provided.
摘要:
A method for creating a formed-in-place seal on a fuel cell plate is disclosed. The method includes first dispensing a flowable seal material along a first sealing area of a fuel cell plate requiring the seal material. Next, a preformed template is located adjacent to at least a portion of the fuel cell plate, the template including predetermined apertures corresponding with a second sealing area of the plate, such that the apertures are coextensive with at least a portion of the first sealing area. Flowable seal material is applied into the apertures, and is then cured to a non-flowable state.
摘要:
A compression retention system for a fuel cell system is provided. The compression retention system includes a first end unit and a second end unit configured to hold a fuel cell stack therebetween. A spring configured to apply a compressive force to the fuel cell stack is disposed between a first spring plate and a second spring plate. The first spring plate has an aperture formed therein. The compression retention system further includes a pair of sheets coupled to the first spring plate and the first end unit, and a spring strut disposed through the aperture of the first spring plate and coupled to the second spring plate and to the second end unit. A fuel cell system and method for assembling the fuel cell system with the compression retention system are also provided.
摘要:
A container is disclosed including a plurality of seal blocks adapted to militate against the entry of a fluid into coolant channel headers formed in bipolar plates during a dip coating process, wherein the seal blocks are interconnected and include a fastening portion and a sealing portion, the sealing portion capable of being interchanged.
摘要:
A subassembly for a fuel cell stack includes a fuel cell plate and a datum hole formed in the fuel cell plate for alignment of the fuel cell plate during assembly of the fuel cell stack. The subassembly also includes a datum insert disposed adjacent the datum hole of the fuel cell plate. The datum insert is configured to militate against a bending of the fuel cell plate at the datum hole during the assembly of the fuel cell stack.
摘要:
An interlockable bead seal for a bipolar plate is provided. The interlockable bead seal includes a first elongate bead formed on a first plate and a second elongate bead formed on a second plate. The first elongate bead has a sealing surface and the second elongate bead has a trough. An interlockable bipolar plate having the interlockable bead seals, and a fuel cell stack formed from a plurality of the interlockable bipolar plates, are also provided. A lateral slippage between components of the fuel cell stack is militated against by the interlockable bipolar plates.