Brief overview of multi ground electrode spark plugs from ngk spark plugs. Spark plug with four ground electrodes type c.
4 Types Of Spark Plugs Copper Vs Iridium Vs Platinum Vs Double Platinum
Ngk ground electrode variations include dfe double fine wire electrode flat hybrid low angled multi ground pspe projected square platinum electrode semi surface discharge slant square surface discharge taper cut and trapezoid cut.
Spark plug 4 electrodes. A spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark ignition engine to ignite the compressed fuel air mixture by an electric spark while containing combustion pressure within the engine. A smaller electrode requires less voltage to jump the gap resulting in fewer misfires which translates to increased fuel economy and horsepower. A critical part of the combustion process 2 1 2.
The spark plug housing and electrodes are exposed to rapid temperature changes during the 4 stroke engine cycle the spark plug housing and electrodes are exposed to pressures of 50 bar or more during combustion 2 3 1. Introduction to spark plugs 1 1. This ground electrode shape allows the spark to be focused between the fine wire center electrode and projecting platinum ground electrode.
It is clear that there is a higher rate of combustion variability when this spark plug was used. While a traditional electrode is 2 5mm in diameter denso currently makes the thinnest. The central electrode which may contain a resistor is connected by a heavily insulated wire to the output terminal of an ignition co.
Reducing the electrode size on a standard nickel plug would result in a drastically shortened life span so the smaller electrodes require exotic metals such as platinum or iridium to maintain and at times surpass the longevity of a traditional spark plug. A spark plug has a metal threaded shell electrically isolated from a central electrode by a ceramic insulator. This lowers the spark voltage secure reliable spark reduces the quenching effect and improves ignition performance.
Bosch platinum 4 spark plugs deliver smoother acceleration top fuel economy and ultimate engine performance. Projected square platinum electrode pspe spark plugs apply a square shaped tip of platinum to the end of a shortened ground electrode. A smaller electrode also reduces flame quenching.
Bosch platinum 4 spark plugs reach self cleaning temperatures faster for quicker starts smoother acceleration and increased fuel efficiency. Iridium like platinum is a precious metal and has extraordinarily superior properties for a spark plug electrode for example high temperature withstand high strength and low resistance. This type of spark plugs was introduced by different manufactures primarily to extend spark plug durability.
Standard spark plugs typically feature a traditional ground electrode.