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what happened after the ignition...does the temperature continue to increase or stays steady during the burn?

2006-12-19 23:20:36 · 5 answers · asked by ljmuller 1 in Cars & Transportation Maintenance & Repairs

5 answers

Do you count ignition as pre burn phase or covering the whole burn phase?? The ignition is at one point by the plug and must travel to the edge of the chamber so there will be a temp increase following the flame front which has some time factor.
But as ignition can be considered as combustion at each point to the end of the chamber, then there can be no temp raise after combustion.

2006-12-20 03:07:25 · answer #1 · answered by Gib 3 · 0 0

The temperature of the engine block will always be less than the temperature of the burning gases in the cylinder.

Thats hot enough to melt the engine.

Even that is way too hot so the cylinders are surrounded by a water jacket.

The water in that jacket is pumped around the cylinders and back to the radiator where it looses the excess heat.

A temperature controlled valve controls the flow of water around the cylinders.

Too cold and the water stops flowing. Too hot and the valve opens to let the water through again. This is set for the optimal operating temperature of the engine.

2006-12-20 07:29:44 · answer #2 · answered by philip_jones2003 5 · 0 0

Yes.
The spark plug ignites mixture in cylinder and a flame front spreads to maximum temp/pressure around 14degrees crank rotation after top dead centre. Temp increases from around 270 to 1200~1400 but as gas expands it cools to around 800 deg when valve opens

2006-12-20 13:22:09 · answer #3 · answered by 1crazypj 5 · 0 0

It's an explosion, of course it gets hot. It cast iron and it retains the heat as well. The cycle happens so fast that there is no time for the cylinder to cool down before the next one. That's why you need a radiator.

2006-12-20 07:31:47 · answer #4 · answered by Anonymous · 0 0

Bottom line direct answer is YES. Anytime you have such violent heat exchange/mini explosions in such a small space you are gonna gave heat.
It is just controlled.

2006-12-20 08:14:55 · answer #5 · answered by GERALD S. MCSEE 4 · 0 0

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