Glow plug GSK2
1 – electrical contact; 2 – insulating washer; 3 - double gasket; 4 – contact pin; 5 – glow plug shell; 6 – heater insulation; 7 – heater and control thread; 8 – heated tube; 9 – heater
The glow plug is a protected, gas-tight tubular heating element. The element is made in the form of a tube with high resistance to corrosion and hot gases and contains a heating element located in magnesium oxide powder.
The heater element includes two coupled resistors: a heater coil at the tip of the tube and a control wire. Given that the heating coil maintains virtually constant electrical resistance regardless of temperature, the control thread is made of a positive temperature coefficient (PTC) material.
On the new generation glow plugs (GSK2), the control thread resistance increases even faster with increasing temperature than on conventional S-RSK glow plugs. This means that the newer GSK2 glow plugs reach the engine starting temperature faster (850°C in 4 s). They also operate at a lower steady state temperature, with the glow plug temperature limited to a non-critical level.
Thus, the GSK2 glow plug can operate for another three minutes after the engine has started. This engine post-heating feature improves engine performance during warm-up and start-up phases with minimal emissions of harmful substances in exhaust gases and noise.
Glow plug temperature diagram:
1. S–RSK
2. GSK
[The text is provided by the web resource: HYUNDAIBOOK.ru]