Sparking Plugs TRIZ Cases

An insulated additional electrode creates a double air spark gap to stabilize high-frequency impedance in ignition systems.

A compact spark plug design uses specific metal shell thickness ratios to secure high gas tightness.

Spring and conductive plate shield coil from vibration and electromagnetic interference.

Alumina-based sintered body insulator incorporates rare earth elements to enhance withstand voltage characteristics in spark plugs.

Adapting flow cross sections of mixing air holes downstream of spark plugs to standardize fuel-air ratios across combustion sectors.

An ignition device merges discharge and AC power supplies to deliver reliable voltage to the spark plug.

Optimizing the resistor length and shaft ratio maintains density to prevent degradation, resolving the trade-off between radio noise reduction and load life.

Rotating the central electrode relative to the ground electrode changes the spark gap distance, reducing noble metal usage while extending service life.

A spark plug electrode uses a composite structure with an erosion-resistant base and protective coating to prevent material degradation.

A dual ignition coil system charges and discharges primary windings with timed delays to induce stable secondary currents at the spark plug.

Segmenting the insulator body from a reinforced structural element reduces vibration contact stress while maintaining high dielectric strength.

A vacuum cell-assembling device uses a light-emitting apparatus and photosensitive array to convert optical signals into diffusion-simulation images.

An annular space between the press fit area and a radially spaced second sidewall minimizes electrical field concentration at the interface.

An antechamber ignites lean mixtures first, then injects high-velocity flame jets into the main chamber to resolve poor combustion reliability.

Segmented laser welding joins the noble metal tip to electrodes, resolving wear resistance and surface area trade-offs.

A discharge auxiliary electrode uses core-shell metal particles to concentrate electric fields and lower the voltage required for electrostatic discharge.

Optimized melting portion geometry connects discharge and pedestal electrodes to suppress radial expansion.

Simultaneous central and peripheral ignition prevents flame interference, reducing unburned gas discharge and lowering HC emissions.

A flexible ignition coil extension body bends up to 360 degrees to navigate tight engine compartments.

A spark plug insulating member projects 2 mm beyond the metal shell to maintain critical electrical clearance.

A semiconductor ceramic insulator uses controlled particle distribution to enable tunnel effect conduction below breakdown voltage.

Segmenting the ground electrode carrier from the chamber wall via an end part resolves heat dissipation bottlenecks while simplifying production.

A spark plug metal shell crimp portion uses carbon steel with grain size number 11 or greater to ensure sufficient strength.

A direct fuel injected spark igniter dispenses fuel from a polygonal bore to form plasma within the combustion chamber.

A non-ferrous metal form interposed between the secondary coil and core distributes electrical potential uniformly.

An ignition connection device uses an inductor to attenuate high-frequency currents and suppress electromagnetic noise.

Local insulator diameter increase blocks carbon conduction paths, maintaining ignition reliability in compact spark plugs.

A tapered fusion zone with controlled cross-sectional area changes distributes mechanical stress to prevent center electrode breakage and improve durability.

A white light LED backlight module incorporates a green light illuminant to raise the overall color temperature of the emitted spectrum.

A spark plug insulator design manages thermal dissipation through a specific cross-sectional area ratio between the metal shell and ceramic body.

Harder intermediate members prevent deformation during bending, resolving alignment accuracy versus stability trade-offs.

A spark plug insulator uses a variable thickness design to position the center electrode securely within the metal shell.

Larger exposed portion angles reduce bending moments that weaken ceramic insulators during combustion.

A spark plug insulator uses a truncated cone and cylindrical volume ratio to enhance voltage resistance.

A platinum-based alloy electrode tip containing palladium and iridium stabilizes thermal expansion properties.

Tubular ground electrode geometry manages flame kernel development to resolve ignition delay sensitivity and extend operational life.

An inverse torque model determines reference actuator positions for gasoline engines using iterative air per cylinder calculations.

A spark plug center electrode uses a composite core and cover layer to manage thermal properties.

A ring-shaped seat section and locking protrusions secure an electrode shaft within a metal container mounting portion.

A two-dimensional igniter sustains electrical arcs to measure in-cylinder gas velocity and composition using parallel plate capacitance.

Optimizing the ground electrode width and its distance from the center electrode minimizes air-fuel mixture obstruction regardless of mounting orientation.