Fuel Cells Grouping TRIZ Cases

A fuel cell unit separates the control device into an upper case fixed to the cell housing base, using a protruding connector for cable access.

Integrally formed triple seal members on metal separators reduce assembly complexity and minimize reactant gas leakage in fuel cell stacks.

Integrated raised borders on bipolar plates eliminate separate seals, reducing device complexity while maintaining tightness for reliable fluid circulation.

Vertical segmentation of reactant gas discharge passages prevents water stagnation at deep ends, reducing pressure loss and extending component life.

Manifold divider with ports and separating walls guides liquid water away from oxidant outlet ducts, preventing ice blockages at subzero temperatures.

Control device judges hydrogen dilution completion to optimize air mass supply, preventing wasteful purging and maintaining power generation efficiency.

Offset bosses in metal separator plates prevent buffer overlap, resolving non-uniform coolant flow constraints.

Angled tension bars engage end plates to reinforce the fuel cell stack, preventing unit cell separation during vehicle impacts.

Reducing scavenging gas pressure before switching valves lowers the required opening force, enabling smaller and less costly components.

Replacing mechanical fasteners with overmolded grommet seals distributes forces evenly, preventing plate flexing and seal leakage in fuel cell stacks.

Convex protrusions on separation plates stabilize electrical contact to reduce resistance and improve collection efficiency in fuel cell stacks.

Overlapping separator ridges transfer mechanical loads to equalize pressure and reduce shear stress in fuel cell stacks.

Segmented cooling branches with independent pumps optimize pump efficiency across varying flow rates, resolving low-flow inefficiencies in single-pump designs.

Disposable plastic bracing devices secure high-temperature fuel cell stacks during transport, then burn away to eliminate complex removal processes.