Sparking Plugs TRIZ Cases

High-hardness annular packing resists crimping deformation to maintain electrode alignment in spark plugs.

A spark plug seals insulator gaps with filler to suppress corona discharge and prevent flashover.

Segmented decks and a monolithic wall inhibit deflection under high pressure, resolving fatigue risks from exhaust gas recirculation.

A spark plug electrode chip uses a chromium-rich layer to protect the tungsten base from oxidation during high-temperature operation.

Asymmetric through hole placement minimizes ground electrode flame interruption, reducing heat and pressure loss to enhance ignition performance.

An interelectrode insert in a spark plug applies a resistance gradient to reduce heat generation and prevent oxidation of conductive paths.

Segmented metal shell with tapered second shoulder extends discharge path to suppress flashover while maintaining heat resistance stability.

An eccentric spark plug insulator positions the metal shell off-center to increase clearance near the ground electrode.

Multi-coil spark ignition system segments discharge duration across multiple spatial locations to improve ignition reliability under lean and EGR conditions.

A single transformer directs energy to corona igniters via isolated switching units, eliminating multiple transformers and reducing system complexity.

A detachable plug cap features an outer cover and projection portion that presses a seal member against the cylinder head.

Asymmetric spark gaps in a pre-chamber ensure stable ignition under varying loads, reducing emissions and fuel consumption.

Composite resin and rubber structure resolves vibration resistance contradiction by engaging engine cap via rigid core while absorbing dimensional errors.

Optimized fusion zone geometry prevents cracks and peeling while maintaining wear resistance.

A Pt-Rh alloy electrode tip with a narrow and wide portion structure.

A spark plug joins a noble metal electrode chip to a ground electrode using a recessed molten bond structure.

A pre-chamber spark plug uses diagonal central and secondary openings to rinse the chamber with fuel-air mixture during the intake stroke.

An ignition device controls electrode pair temperature by adjusting the exposure area of an intermediate member to prevent carbon deposition and pre-ignition.

Distinct spark plug configurations reduce carbon buildup and misfire risks in dedicated EGR engines.

An inverted spark plug design positions the insulator tip as the active electrode to generate a self-cleaning electrical discharge.

A spark plug uses a layered insulator with a high dielectric peripheral layer to reduce electric field stress at the electrode interface.

Intermittent dielectric breakdown creates leader discharge paths that boost active component generation while keeping ozone production low.

Radial winding end extension and conductor fastener slits resolve axial length expansion while ensuring precise terminal alignment.

Varying prong lengths and widths distribute thermal stress to equalize wear rates, extending service life in high compression engines.

Variable wall thickness in the ignition coil connecting portion balances plug boot flexibility against withstand voltage requirements.

Dark nickel plating on surge arrester electrodes prevents solder leakage while maintaining thermal stress resistance.

Polyaryl ether ketone sealing rings prevent voltage flashovers between metal shells and center electrodes, extending service life.

A post-formed gasket shrinks over a threaded shell to maintain planarity and prevent slipping.

A spark plug insulator features a high emissivity surface that transfers heat from the center electrode to the housing.

A female thread jig engages a metallic shell to establish a reference straight line for calculating ground electrode axis deviation.

Parallel primary and series secondary converters isolate secondary defects from the primary side, preventing damage to the power conversion system.

Segmentation and dynamics principles resolve the trade-off between adaptability and complexity by allowing pivotal movement within bent cylinder head bores.

Twisted ground electrodes form a volumetric spark target to ignite non-homogeneous fuel-air mixtures at low engine RPMs.

Shield electrode prevents fouling and arcing while ensuring consistent ignition area.

Retaining clip prevents axial separation of the spark plug jamb nut during engine head removal, distributing torque over a larger surface area.

Bent capacitor electrodes adjust capacitance ratios to compensate for transistor threshold voltage variations in organic light emitting displays.

Cyanogen emission measurement replaces invasive electrical probes to quantify spark igniter energy accurately under dilute conditions.

Curved transitions between insulator diameter sections distribute stress evenly, reducing breakage risk in compact internal combustion engine designs.

A ring-shaped ground electrode with cam surfaces and inward projections manages fuel-air flow in prechamber spark plugs.