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What are si and ci engines?

Answer:

SI engine means Spark Ignition Engine where combustion products(air,fuel)are ignited in combustion chamber by means of spark from spark plug which is located on cylinder head..

CI engine means Compression Ignition Engine,here combustion is take place by means of compression..

First answer by Anbeysiva. Last edit by Anbeysiva. Contributor trust: 0 [recommend contributor ]. Question popularity: 2 [recommend question].

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Relevant answers:

What is SI engine and CI engine?
An SI engine is a spark ignition engine. A CI engine is a compression ignition engine. SI engines use spark plugs to ignite fuel in the combustion chamber. CI engines use compression in the...
What is the differencess between a SI engine and a CI engine?
Well basically, SI means Spark Ignition and CI means Compression Ignition. For some fuels like petrol, which can easily be ignited by a spark, we make use of a device called 'spark' plug (with its...
How do you reduce the knocking in SI engine and CI engine?
Adjust timing and/or quality of fuel
Difference between SI Engines CI Engines?
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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)