NGK glow plugs - You can rely on these

Well functioning and reliable glow plugs are decisive helpers for each cold start. Through intensive research and trendsetting developing work, NGK always offers the latest state of the art technology and in additions sets the glow plug technology standards.  NGK glow plugs ensure fast ignition and thus environmentally friendly combustion, even at temperatures below freezing point, by guaranteeing optimum ignition conditions for the injected foil through the thermal energy transported into the combustion chamber. Diesel engines are self-igniters (compression-ignition engines). The ignited fuel ignites without requiring an ignition spark. They require the heat produced during compression in order to initiate combustion of the added diesel fuel. Therefore, much energy is required for ignition at low temperatures. 

During the cold season these engines do therefore not always start up as required! The heat produced is often not sufficient on its own in order to get the engine started. The necessary heat in the combustion chambers is thus often lacking. Heat losses through the cold cylinders and the intake air prevent self-ignition. The diesel engine does not reach the necessary temperatures without added heat.

In principle, glow plugs now have the central function of providing additional energy for the start.

Glow plugs from NGK are the energy providers required. They are fitted in the cylinder head. The glow pencil protrudes into the glow chamber or the prechambers. The glow pencil should be precisely positioned on the edge of the mixture edgy. In this way it can achieve the precisely where it is required. However, it should never protrude too far into the combustion chamber as otherwise the treatment of the fuel and thus the formation of an ignitable fuel-air mixture would not be guaranteed. Before starting the engine, a voltage is applied to the glow plug, and the glow tube heats up to more than 800°C. This heat considerably improves the cold start capability of the engine. The heat developed by the glow plug also optimises combustion, so that smoke development and other emissions are reduced.

The glow plug is exposed to the burning fuel.

It must therefore be able to withstand intense heat, high pressure, vibrations and attack by corrosive chemicals,  in addition the glow plug must be able to reach its operating temperature quickly and have a long service life.

All these prerequisites are fulfilled by NGK.

Glow plugs also require a control, which is either performed manually or via a control device, which controls the voltage generated for a certain time. The system is frequently supplemented by a corresponding control lamp, which indicates the preheating.

For the benefit of the environment: Reduction in white/ blue smoke.

The after glow ensures that the fuel is completely combusted and reduces smoke development by up to approx. 49 percent.

Removal of the cold start knock.

The fuel combusts more uniformly and completely; thus more energy is released, the combustion chamber temperature increases faster.