What is the working principle of a four stroke SI engine?

GI Girinair asked on 21 February 2020, 06:56
1 answers / 287 views / 2 votes
CH

first of all the SI engines works on OTTO CYCLE

SI engine means Spark Ignition engine which means the charge (Petrol+air)is being combusted by the spark generated by the SPARK PLUG which will gives the spark at the end of the COMPRESSION STROKE

In 4 stroke engine the power is being produced In expansion stroke which is the one of the stroke of all 4 strokes and the principle/process/strokes is as follows
1.SUCTION STROKE
2.COMPRESSION STROKE
3.EXPANSION/POWER STROKE
4.EXAUST STROKE

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