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Q: What ignites air fuel mixtures in a cars engine?
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What burns the fuel in cars?

The sparks plugs fire and ignite the fuel in a Gasoline engine, and compression compresses the fuel until it ignites in a Diesel engine.


How do cars put carbon dioxide into the air?

The internal combustion engine ignites the fuel. That fuel then expands as it burns into carbon dioxide. Carbo ndioxide is what is left from the burning of fossil fuels.


What is the difference between a SI engine and a CI engine?

An SI engine ignites the fuel with a spark (SI = Spark Ignition) whereas the CI engine ignites the fuel with heat generated from compression (CI = compression ignition)


What is the device that ignites the fuel mixture in an engine?

spark plug


What is car engine detonation?

When the fuel/air mixture inside the cylinders ignites.


What is different between gas and diesel engine?

diesal fuel ignites from pressure of the cylinder.gasoline ignites from the ignition spark from the distributor or coil pack.


When air in the cylinder of a diesel engine is compressed it?

it gets hot, and ignites the diesel fuel that is injected by the fuel injectors.


Which cars run on electricity and gas?

All gasoline cars run on both - electricity is required to create the spark which ignites the fuel/air mixture.


What is the detonation and knocking in cars?

When an engine runs as it should the fuel/air mix in the combustion chamber ignites at the spark plug and the flame front spreads from there. In an engine that's knocking there are hotspots in the combustion chamber causing the fuel/air mixture to ignite prematurely a bit all over the place.


What type of internal combustion engine has no spark plugs?

The diesel engine, which ignites the fuel vapors by compression within a preheated cylinder.


What is a spark plug used for?

By creating a spark it ignites the fuel in an engine which explodes causing the cylinder to move.


Why does diesel engine don't need an outside source of ignition?

The fuel ignites under high compression.