What is an Electrical Term Term--Spark Plug

1 product name

1.1 Spark plug

Spark plug

A spark plug is an ignition element of an electric ignition system of an internal combustion engine. It breaks a spark gap by means of a pulsed high voltage to form an electric spark to ignite a fuel-air mixture in a combustion chamber of an internal combustion engine.

1.2 (Insulator) protruding spark plug

(insulator)projected nose type spark plug

The insulator skirt protrudes from the spark plug outside the end face of the housing.

1.3 Cone type spark plug

Conical seat type spark plug taper seat type spark plug

The bearing surface of the housing is fitted with a 63±1 cone angle conical surface and the spark plug mounting hole of the engine cylinder head does not need to use the spark plug of the outer sealing gasket.

1.4 Short spark plug

Compact type spark plug

Radial and axial small size spark plugs.

1.5 suppression spark plug

Suppressed type spark plug

Spark plug with interference suppressor.

1.6 Resistance Type Spark Plug

Resistor type spark plug

A spark plug with a resistor body is connected in series with the insulator.

1.7 shielded spark plugs

Screened spark plug

Shielded spark plug

Insulators and wiring locations are shielded from spark plugs in metal housings.

1.8 Semiconductor Spark Plugs

Semiconductor spark plug

Insulator skirts Spark plugs made of semi-conductor material or skirted with semiconductor material.

1.9 Gap spark plugs

Surface gap spark plug

A spark plug that discharges along the end face of the insulator skirt between the center electrode and the housing.

2 Spark plug characteristics

2.1 calorific value

Heat rating

Spark plug under normal conditions, not due to its own hot spots and self-ignition capacity indicators.

2.2 Cold stain resistance

Cold fouling rating

The spark plug's ability to withstand the contamination of combustion products or, under normal conditions, the spark plug's self-purification capability rating.

3 spark characteristics

3.1 (electrical) sparks

(electric) spark A momentary flash of short-circuit discharge is caused by the sudden breakdown of the air separating the two terminals or their composite dielectric material.

3.2 Spark gap

Spark gp

A device containing two or more electrodes to produce a spark discharge under certain conditions.

Spark plug spark gap refers to the gap that produces the spark discharge.

3.3 Spark voltage

Spark voltage

The voltage measured across the instantaneous spark gap is specified.

3.4 Spark current

Spark current

The current flowing through the spark gap electrode is measured at the specified instant.

3.5 Spark duration

Spark duration Under the given conditions, the spark jumps over the duration of the spark gap or the duration of the current flowing through the spark gap.

3.6 spark energy

Spark energy

The energy released between spark gap electrodes.

4 Engine ignition out of control

4.1 Self-ignition

Self-ignition

In a controlled ignition engine, any full or partial abnormal combustion of the fuel-air mixture is not caused by the spark plug spark being ignited as a point source.

Note: When determining the spark plug heating value, the ignition must only be generated by the hot spot of the spark plug itself.

4.2 Early ignition

Pare-ignition