Sparking Plugs TRIZ Cases

Strategic gap positioning allows trapped gas to escape during welding, reducing void formation and misalignment in the joint.

Hollow porous ceramic structure increases surface area for electrostatic discharge heat dissipation, reducing auxiliary electrode thermal load.

Position-specific heat values adjust multipoint ignition electrode temperatures to prevent carbon pollution and pre-ignition.

Inclined ground electrode surface suppresses flame quenching while buried noble metal tip prevents fallout, resolving durability versus ignitability trade-off.

Undulating contact surface between resistor and conductive seal increases interface area within spark plug insulator.

Two-stage voltage testing develops and detects defects in spark plug ceramic insulators without causing flashover.

A pre-chamber spark plug uses access apertures to adjust the electrode gap for consistent ignition.

Segmented insulator design with varying diameters reduces metal terminal vibration impact, suppressing cracking in thin-walled regions.

Insulator body holder applies prestress to spark plug insulator against housing head, preventing gas leakage under peak combustion pressures.

A metallic shell groove features a nickel plating layer with controlled thickness to balance corrosion protection and manufacturing cost.

Simultaneous soldering of multiple units on a shared carrier reduces production time and error rates compared to individual assembly.

A spark plug insulator root section maintains a specific volume ratio to optimize thermal conduction from the center electrode.

A spark plug ground electrode joins a noble metal chip to an electrode base material through a fused portion with optimized interface distances.

A parallel capacitor buffers transient oscillations in a resonant circuit, preventing arc discharge and maintaining stable corona ignition.

A spark plug ground electrode features a nickel layer with a controlled thickness gradient along its outer lateral surface.

A valve-controlled ignition prechamber uses a stratification cavity and movable valve to manage pilot charge flow.

A plasma ignition plug uses a boron nitride ceramic insulator to support high voltage electrical fields for engine combustion.

Monitoring electromagnetic radiation from spark plugs detects electrical resistance changes to predict remaining service life.

Internal flow passages direct air to separate the discharge spark from the insulator surface, reducing cooling losses and improving ignition reliability.

Void-free injection-molded sleeve prevents high voltage puncture and tracking during thermal cycling.

A spark plug fuel supply line uses a threaded sealing section to direct gaseous fuel into the pre-combustion chamber.

A spark plug insulator isolation portion with a specific surface area to volume ratio ensures sufficient insulation distance.

Mixing distinct LED spectra achieves uniform chromaticity while reducing production costs from strict phosphor coating constraints.

A melt sag over the precious metal tip circumference blocks air entry at the joint interface.

A laser beam targets the periphery of bright spot pixels to eliminate electrode portions without altering reflectivity.

A palladium-based electrode tip alloy containing iridium, nickel, cobalt, and iron enhances spark erosion resistance.

Sintered spherical glass powder stabilizes conductive paths, reducing resistance variation and improving manufacturing yield.

A spark plug insulator design with specific axial distances to metal shell contact points.

A dual signal coaxial cavity resonator generates plasma using combined RF and DC power for engine ignition.

A press-fit sleeve with a connecting point and lateral surface seals and cools components in engine fire deck openings.

Hourglass barrel with dimples eliminates spring clips, preventing dislocation during assembly while maintaining continuous electrical connection.

Porous covers quench ignition events by dissipating heat and pressure waves, mitigating lightning strike risks in composite aircraft structures.

Multiple bore-cooling holes surround the spark plug and check valve in a gas engine pre-combustion chamber to manage component temperatures.

Segmented center electrode with extended leg prevents loosening under thermal cycling by enhancing axial anchoring strength.

Curved ground electrode lateral surfaces direct fuel flow away from the spark discharge gap to maintain reliable ignition performance.

Segmented central electrodes in a dual spark plug boost ignition energy, resolving insufficient spark power for lean air-fuel mixtures.

A gas volume between 100 mm³ and 300 mm³ isolates the smooth insulator leg from the metallic shell to stop carbon accumulation that causes current leakage.

An extension spark plug merges multiple components into a single pre-assembled unit to simplify installation.

A variable diameter insulator design prevents pre-ignition by managing heat conduction while maintaining sufficient plasma generation.

An iridium rhodium alloy tip resists oxidation and wear while maintaining the sparking gap through resistance welding to a nickel substrate.

Segmented electrode assembly with ablative material generates conductive plasma vapors using low voltage arcs.

Alumina-based insulator material with rare earth elements forms stable RE-beta alumina crystal phases to enhance mechanical strength.

Segmented noble metal chips in a spark plug center electrode control capacitive and inductive discharge paths to protect the fusion portion from wear.

Asymmetric spark plug placement avoids direct squish flow impact, preventing flame quenching and reducing hydrocarbon emissions in spark-ignition engines.

A turbulent jet ignition pre-chamber system uses flame quenching to initiate combustion in the main chamber.

Segmenting the core material into large and small diameter portions prevents exposure while maintaining thermal conductivity.

Tapered auxiliary chamber hole restricts flame density at the outer open end to control temperature.

A tangentially embedded erosion-resistant pin extends spark igniter service life.

Projecting insulator foot shields ceramic from combustion shock waves, preventing cracks in downsized engines.

An annular gasket with an inclined forward end surface stabilizes friction during spark plug mounting to ensure precise ground electrode placement.