Sparking Plugs TRIZ Cases

A pencil ignition coil boot uses a male protrusion to compress the housing material against the spark plug head.

Sealing layers prevent glass component ingress into discharge auxiliary electrodes, reducing short circuit defects and improving manufacturing productivity.

Composite lead-free glass seal bonds spark plug insulator to electrode.

A triggerable spark gap counter electrode uses a two-phase structure with a low work function material to reduce arc burning voltage.

Adjustable variable resistors balance LED lightbar voltages, reducing control IC heat and power consumption.

Ferrite-embedded spiral wire reduces high-frequency noise while preventing disconnection under vibration.

Optimized manganese-to-sulfur ratios in the spark plug shell prevent breakage and chip deposition during machining of smaller diameter designs.

A spark plug resistor element uses a specific ZrO2 and carbon filler distribution to create complex current paths.

A spark plug electrode projection features a side surface recess to suppress heat conduction and maintain high temperature at the discharge gap.

A gamma voltage routing method connects buffers to output terminals and adjusts resistor string taps.

An igniter body integrates liquid fuel spray outlets with spark electrodes to provide ignition.

Optimized nickel alloy composition balances oxidation resistance against thermal conductivity loss in spark plug electrodes.

Segmented intermediate electrode creates dual discharges to increase plasma volume while maintaining breakdown voltage and preventing calamine deposition.

A spark plug insulator uses controlled alumina grain size to boost mechanical strength.

A projecting portion on the ground electrode extends toward the center electrode to widen the spark discharge area.

Interposing a heat insulating member between the stem and center electrode prevents excessive temperature increase in the insulator head portion.

Direct condenser mounting on the low voltage pin removes noise while a breathable fiber cover dissipates heat and prevents water ingress.

Segmenting the high-voltage terminal into pressed and non-pressed walls isolates the resistor from excessive pressure, improving hermetic sealing durability.

An asymmetric side electrode extends perpendicular to tumble flow, preventing missing sparks while ensuring reliable air-fuel mixture ignition.

A spark plug weld portion with a larger diameter directs electrical sparks away from electrode components.

A circumferential slot seats an elastomeric cap around the terminal contact to lengthen the creepage path.

Segmented plug cap applies strong local strain to prevent discharge gaps while easing spark plug attachment.

Segregating silicon and rare earth elements at alumina grain boundaries stabilizes the microstructure.

Alumina spark plug insulator reduces low melting point glass to resolve high temperature softening and improve electrical insulation reliability.

A composite electronic component integrates an electrostatic discharge protection part with a multilayered insulating structure covering the discharge electrodes.

A semi-rigid high-voltage extender combines a conductive spring with a rigid tube and polymeric boot to maintain electrical connectivity.

Distributed cylinder head electrodes create volumetric combustion, resolving incomplete burning in high-speed engines without complex piston isolation.

Auxiliary energy circuit detects unintended arc discharge and transmits stored power to prevent immediate energy depletion, ensuring reliable ignition.

A display device corrects pixel luminance using per-pixel gain values and a shared conversion curve to standardize output signals.

An intermediate member with higher thermal expansion secures a ceramic insulator against metallic housing gaps at elevated temperatures.

A protruding insulator portion with a specific surface-to-volume ratio improves plasma generation in ignition plugs.

Curving the joining surface increases contact area to prevent exfoliation at the resistor junction under vibration.

A transmission element uses a conductive coating to move high ignition voltage and high-frequency signals to the spark plug.

Electrochemically etched metal mesh microtips generate intense plasma for ozone production.

A voltage transformer circuit charges a capacitor to enable ionic current measurement in spark plugs.

An insulator protrusion with an inclined surface guides airflow diagonally into the discharge gap of a spark plug.

Sphere-shaped auxiliary chamber increases internal pressure to boost flame jetting speed and fuel economy.

Axial injection holes extend spark discharge into an auxiliary chamber to improve ignition efficiency.