Sparking Plugs TRIZ Cases

See how battery compartment elevation, gaskets, and sealed connector chambers protect ignition

See how a vacuum device integrates high-voltage electric shock electrodes to stun insects befor

See how a vacuum adapter integrates high-voltage electric shock to stun and kill insects, repla

See how a flexible cable and single remote switch control multiple gas burner ignitions, preser

See how stacked metal plates separated by hollow columns reduce manufacturing complexity and im

Two conductive discs at different heights and radii improve ignition and flame sensing for main and simmer burners while reducing nuisance sparking.

A 0.4 mm spark gap placed partly inside the housing lowers ignition voltage, limits heat pickup, and helps prevent pre-ignition in hydrogen engines.

Specific cap surface ratios and through-hole geometry improve heat dissipation in a pre-chamber spark plug, reducing pre-ignition and wear.

Two series spark gaps and an earthed inductor form a high-pass RF protector that diverts pulsed currents while reducing passive intermodulation.

An inward ground electrode and extended housing protect the insulator base from pressure peaks while freeing pre-chamber volume design.

Microwave ignition in a pre-chamber improves lean-burn stability, cold starts, and combustion efficiency while reducing heat losses and system cost.

An integrated two-region metal sealing ring increases spark plug contact area to block combustion gas leakage and simplify cylinder head installation.

A soft-magnetic tube integrated with the valve cover shields pencil coils, cuts eddy-current heating, and frees space in the spark plug well.

A rounded insulator base forms a breathing chamber that improves heat dissipation and cushions mega-knock pressure peaks in spark plugs.

Measures spark duration with a sample-and-hold circuit to indicate spark igniter wear and support timely gas turbine maintenance.

Cap geometry and flow guidance deflect the spark from weld seams, improving prechamber ignition and extending spark plug service life.

A tapered breathing space keeps the spark gap inside the housing to lower electrode heat and reduce self-ignition risk in hydrogen engines.

Controlling shell cavity volume and seating geometry limits insulator overheating, helping spark plugs resist pre-ignition.

An asymmetric prechamber spark plug cap uses local flow-deflecting features to improve gas exchange through bores and strengthen ignition dynamics.

Switching between prechamber and hooked spark plugs by operating range cuts knocking, limits soot buildup, and improves engine efficiency.

Controlling Ru-chip discharge roughness to 0.4-4.8 μm improves ignition regularity while limiting oxidation-driven electrode exhaustion.

Placing the ignition coil near the spark plug cuts stray capacitance, lowering current peaks, plug wear, and electromagnetic interference.

A push-pull isolating transformer replaces capacitor-heavy ignition electronics to sustain reliable combustion with lower heat and fewer failures.

Controlled Ru grain boundaries and porosity cut oxidation and thermal stress in spark plug electrode chips, extending service life.

Controlled Ru chip grain size and aspect ratio help spark plugs resist thermal-stress cracking while preserving electrical performance.

Controlled porosity, hydrogen, and Pt in Ru electrode tips reduce stress and cracking, improving spark plug durability under engine vibration.

Flat ignition surfaces and a sub-0.3 mm internal spark gap improve hydrogen-engine ignition stability while reducing voltage, wear, and heat absorption.

An oblique riser passage redirects pre-chamber turbulence away from the ignition means, cutting deposits and extending service life.

A sub-0.3 mm radial spark gap inside the housing lowers ignition voltage and spreads electrode wear for longer-life hydrogen engine spark plugs.

A dual-component insert pairs rigid socket retention with compliant spark plug grip to solve the single-material tradeoff during operation.

A recessed pre-chamber spark plug cap improves fresh-gas exchange and flare jet direction to maintain reliable ignition under difficult flow conditions.

A flange-aligned air passage and protector use the mounting bolt to block rain or wash water while preserving plug-hole air discharge.

A blind hole or inner step positions the ground electrode precisely, stabilizing ignition gap width in pre-chamber spark plugs.

Cooling passages plus dome, axial, and swirl nozzle geometry cut pre-chamber misfire, heat load, NOx, and fuel use in lean spark ignition.

Adding 0.5-30% Ni or Co to a Ru discharge member reduces high-temperature oxidation and wear, extending spark plug service life.

Wide-area discharge along the combustor inner wall stabilizes ignition in tubular fuel-oxidizer flow despite local air-fuel variations.

A tuned gas-volume-to-insulator-length ratio dissipates pre-chamber heat, preventing auto-ignition across varying engine loads.

Controlled grain size and low porosity make ruthenium spark plug electrodes more weldable and resistant to erosion, corrosion, and cracking.

A grounded shield in the spark plug well cuts stray capacitance and EMI from elongated ignition coil extensions, helping extend spark plug life.

A soft-magnetic spark plug tube shields pencil coils in tight engine wells, cutting eddy-current heat while freeing space for windings and insulation.

A one-way valvular prechamber limits charge density to reduce electrode erosion and extend sparkplug life in high-power-density engines.

A threaded, position-adjustable ground electrode in a thermally conductive pre-chamber body cuts erosion and simplifies spark gap setting.

Injection hole placement and cover geometry keep fuel gas from merging at the front end, improving ignition and combustion stability.

An annular gap filled with a heat-conducting element cools the center electrode while preserving electrical insulation and spark plug life.

Primary current rise time reveals spark plug wear before failure, enabling planned replacement and avoiding emergency engine stops.

Optimized alumina insulator chemistry helps spark plugs maintain withstand voltage near 900°C under higher-output engine conditions.

Compressed air through a perforated support pin impinges on the igniter to improve cooling and durability under rising combustor heat loads.

A small annular shoulder radius boosts Hertzian contact pressure so a deformable sealing washer keeps compact spark plugs gas-tight at higher pressure and temperature.

Cooling passages in the ignitor housing route air to the liner opening, reducing hot-gas stress on the ignitor tip and combustor liner.

A radially extended melt joint increases ground electrode joining area without enlarging the shell hole, improving spark plug strength and reliability.

An elliptical or drop-like ground electrode steers fresh gas to the ignition gap and clears burnt gases for more uniform prechamber combustion.

A recessed electrode fused portion boosts spark field intensity and ignitability while preserving volume to reduce wear and extend spark plug life.

Perforated support pin walls direct impingement airflow around the igniter and tip, improving cooling under scarce air supply.

A dedicated sensing electrode and grounded shield cut ignition EMI, producing cleaner ion current signals for combustion and emissions sensing.

An offset bevel on prechamber connecting conduits improves mixture flushing, stabilizes idling, and reduces pre-ignition risk.

A spark plug center electrode uses a nickel-chromium alloy with specific group B elements to form a dense protective oxide film.