Glow plugs: what is worth knowing about them?
Glow plugs: what is worth knowing about them?
Anonim

The quality and durability of a particular system in a car depends on the serviceability of each element and detail in it. This also applies to glow plugs, which perform an essential function in the operation of the engine. It is on them that the engine starts under any temperature conditions. Therefore, the choice of this element should be treated with special attention. To choose the right part (in this case, it is a glow plug), you should know its basic principles of operation and the causes of breakdowns.

glow plugs
glow plugs

Function and purpose of an automotive glow plug

Even at -35 degrees Celsius, it can start a gasoline engine. The principle of operation of this part is very simple - after starting the internal combustion engine, it simply ceases to function, since it does not perform any other functions. But despite this, a car that does not have a glow plug (GH) cannot be started.

Often in many modern cars, CHs continue to work for two minutes after the engine has started. This action, in addition to stabilizing harmful emissions into the atmosphere, contributes to a uniformcombustion of fuel in a cold engine.

replacing glow plugs
replacing glow plugs

Design Features

The main difference in the design of this spare part is that it cannot be disassembled. The driver is simply deprived of the opportunity to do anything with a broken candle. Thus, this part does not need to be repaired, and if problems occur, it should be changed. Changing glow plugs takes less than 5 minutes.

Given the fact that these mechanisms work for some time after starting the engine, it is necessary to exclude the possibility of their overheating, and, accordingly, failure. It is worth noting that the current candles are equipped with everything necessary for long and trouble-free operation.

Glow plugs in diesel engines

Cars running on diesel fuel can do without them, which cannot be said about gasoline cars (due to the high compression ratio at high temperatures (800-900 degrees Celsius) in the engine itself). But under certain circumstances, the candle significantly helps the operation of the diesel engine. In places with a cold climate, where in winter the temperature reaches minus 40 degrees Celsius, the diesel engine cannot be started. And that's where candles come in. They are slightly different in design from their gasoline counterparts. Their main difference is the presence of an additional adjustable spiral. The resource of glow plugs is not less than 60 thousand kilometers. After that, a replacement is made.

Good to know

In the distant 60s of the last century, the process of starting a diesel engine lasted aboutthirty seconds. After 20 years, this interval was reduced to 5 seconds. Now the engine start period is no more than two seconds (about the same as that of a gasoline engine). Turns out glow plugs are very useful!

glow plug
glow plug

What is the function of spark plugs in a diesel car?

In order to provide a normal temperature for starting the engine in cold weather, additional heating is required in the combustion chamber. This is exactly what diesel glow plugs do.

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