Fuel Cells TRIZ Cases

Independent sealing portions suppress local surface-contact pressure increases, improving sealability and design flexibility.

A single gas ejector recirculates anode exhaust using high-pressure fuel gas, reducing power consumption and device complexity compared to mechanical pumps.

A fuel cell stack assembly apparatus uses perpendicular alignment features and magnetic abutments to position ferritic units.

A control unit regulates natural gas inlet flow based on reformer and anode output flows to maintain stable operation.

A unitary tie rod with preconfigured engagement surfaces applies compression force to fuel cell assemblies.

A controller calculates ohmic resistance voltage loss by sensing open circuit and operation voltages during switch transitions.

Elliptical inlet and outlet manifolds in solid oxide fuel cell separators optimize gas flow patterns to boost power density per unit volume.

A hydrogen recirculation device purifies and compresses anode outlet gas using a membrane electrode assembly to recover unused fuel.

Pendant reactive handles on poly(phenylene) backbones enable tunable chemical functionalities without compromising backbone durability.

Forward and correction controllers manage fuel cell operations by dynamically adjusting operational constraints based on real-time measured signals.

A reinforced membrane-seal assembly integrates seal material into a perforated reinforcing component to mitigate mechanical stresses at the fuel cell edge.

A movable fixing structure compresses the sealing part between two lids to maintain constant pressure.

An undercut channel web design redirects product water via angled faces, resolving accumulation damage and improving fuel cell reliability.

A microporous layer with spatially varying density optimizes gas and water vapor transport across a fuel cell assembly.

Recessed window seals and thicker protective coatings on fuel cell end plates absorb seal misalignment stresses to prevent electrolyte cracking.

Projections on cylindrical collars absorb stress from end plate deformation and thermal expansion differences to prevent resin manifold cracking.

A solid oxide fuel cell system uses anode off-gas temperature detection to initiate power-generation control actions that stabilize diffusion combustion.

Humidity sensors monitor anode recycle steam levels, allowing controllers to adjust blowers and prevent electrode coking.

A fuel cell humidifier uses a pressure-driven variable member to adjust the supply air inflow passage cross-section.

Periodic cathode gas flow increases prevent flooding during low-load operation while maintaining membrane hydration.

A scavenged reservoir with a venturi entrains water in purge gas flow for efficient removal.

Separates nitrogen and water from high-temperature fuel cell exhaust to recycle purified hydrogen, reducing carbon oxide emissions.

A hygroscopic membrane electrode assembly exploits the electrochemical reaction potential differential between water vapor and liquid water to generate electrical power.

Welding a conductive jumper between interconnects bypasses defective cells, maintaining voltage stability without adding complex external components.

An automatic isolating device shorts terminals and cuts fuel supply to prevent fire hazards during servicing.

A testing rod introduces sealing elements into fuel cell media lines to isolate individual cells for precise diagnostics.

Porous plate purge manifold drives byproduct water removal via reactant gas pressure, eliminating auxiliary pumps and drainage delays.

A conical isolator between the tie rod and pressure plate applies clamp load while ensuring electrical isolation.

Resonance-stabilized cationic groups on polyphenylene backbones resolve the trade-off between pH stability and polymer synthesis difficulty.

A fuel cell control arrangement adjusts fuel feed using voltage measurements and energy balance calculations.

A humidifier stack unit uses complementary fixing elements to increase membrane tension and maintain defined spacing between parallel water-vapor-permeable membranes.

A fuel cell system measures output voltage to detect gas leakage conditions during operation.

Segmented peripheral seals and intermediate cooling circuits prevent hermeticity loss during wide temperature storage and operation cycles.

A cell stack manifold uses a non-element part and sealing material to secure fuel cells.

A fuel cell aging device segments voltage monitoring to detect negative voltages reliably while reducing hardware costs.

An anode gas compressor vaporizes transferred water to maintain moisture levels during hot starts, preventing dry-out without structural modifications.

Expanded regions in rib channels increase cross-sectional area to discharge liquid water, preventing flooding and maintaining power generation efficiency.

A fuel cell cabinet lid uses differential fixing forces to secure the cover while allowing internal pressure release.

A contoured insulator plate distributes localized fastener loads to prevent uneven deflection and leakage in a fuel cell stack endplate assembly.

A fuel cell endplate integrates fluid channels and a Venturi gas ejector to manage anode exhaust circulation.

Integrating humidifiers and filters into media ducts reduces device complexity while maintaining compact design and secure connections.

Resin housing contact with a metal plate body transfers heat to delay water condensation and prevent drain valve freezing.

A purging device uses a depressurized intermediate chamber to expel inert gases from the fuel cell stack.

Deformation guides in solid oxide fuel cells allow localized bending during thermal expansion to maintain current collector contact.

A symmetrical dual-compressor air supply device drives two independent wheels via a central electric motor.

A rising drain line element directs anode waste gas upward into the process air stream for thermal conversion.

Locating strips maintain alignment of unstable membrane-electrode units during stacking, reducing cycle times caused by complex logistical connections.

A cover shields the screw tightening part of a fuel cell joint from below to capture metal chips during assembly.