Glow Plug GSK2
1 - electrical contact; 2 - insulating washer; 3 - double gasket; 4 - contact pin; 5 - a shell of a glow plug; 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 filament. Whereas the heater coil maintains a virtually constant electrical resistance regardless of temperature, the control filament is made of a PTC material (PTC).
On glow plugs (GSK2) of the new generation, the resistance of the control thread increases even faster with increasing temperature than in conventional S-RSK glow plugs. This means that newer GSK2 glow plugs are faster (850°C in 4 s) reach the temperature to start the engine. They also operate at a lower steady state temperature, with the glow plug temperature limited to a non-critical level.
In this way, the GSK2 glow plug can operate for up to three more minutes after the engine has been started. This feature of the engine post-heating improves engine performance during the warm-up and start-up phases, with minimal emissions of harmful substances in the exhaust gases and noise.
Glow plug temperature chart:
1. S–RSK
2. GSK