Two stroke and four stroke engines, Mechanical Engineering

Two Stroke and Four Stroke Engines:

In  the two stroke engines thermodynamic cycle is completed in One revolution of crank shaft whereas in 4 stroke engines the cycle is completed in 2 revolutions of crank shaft. For same capacity and speed nearly 2 times power is developed in 2 stroke engine as compared to 4 stroke engine. But as high compression ratios cannot be achieved in 2 stroke engines, the efficiency of 2 stroke engine is less as compared to 4 stroke engines. Furthermore, the engines can be classified as Spark Ignition engines that operate with the petrol as fuel and Compression ignition engines that operate with diesel as fuel.

 

 

Posted Date: 10/20/2012 4:02:52 AM | Location : United States







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