Sparking Plugs TRIZ Cases

A spark plug insulator supported by a main fitting with specific intervals reduces bending moments on the component.

Segmenting the prechamber into a larger gas-tight back part displaces residual gases, ensuring undiluted fresh mixture at the spark gap.

Radial fins on the igniter housing maximize surface area for convective cooling, preventing overheating and fatigue in high-voltage gas turbine engines.

Segmented anode and cathode check lines connect to a power contact block, enabling power-on testing without extending leads from integrated circuit pins.

A flame-ejecting spark plug uses a cavity and holes to form columnar flames that penetrate the combustion chamber for stereoscopic ignition.

A spark plug integrates a voltage relief feature to discharge excess current before reaching the ceramic insulator dielectric strength.

Acute or right angled ground electrode protrusions constrain electric field intensity to prevent spark movement toward base material and suppress re-discharge.

Reduced clearances between the spring and boot wall prevent lateral vibration, allowing optimal spring constant settings for complex cylinder head layouts.

Dispersing MgAl2O4 spinel and SiO2 glass phases within an alumina matrix provides alkali corrosion resistance while maintaining withstand voltage properties.

A forced push-pull inverter generates high-frequency alternating voltage to sustain ignition arcs across spark plug gaps.

A control system detects spark plug fouling by measuring ignition coil primary current during restrike events.

A copper-nickel gasket with controlled hardness resolves gas-tightness and loosening contradictions in spark plugs.

A spark plug design optimizes metal shell volume and thermal conductivity to balance heat storage and dissipation in the pre-chamber.