Difference between 4-stroke Petrol Engine and 4-stroke Diesel Engine

The Difference between 4-stroke Petrol/Gasoline Engine and 4-stroke Diesel Engine

1. Difference Between 4-stroke Diesel Engine and 4-stroke Petrol Engine By Muhammad Shafaat (14ME30)

2. Diesel Petrol Made from Petroleum/ Crude oil More dense and more viscose Self ignition temperature is low Made from Petroleum/ Crude oil L ess dense and less viscose Self ignition temperature is high

3. Petrol Engine Diesel Engine

4. Petrol Engine Diesel Engine

5. Differences between Diesel Engine and Petrol Engine On the basis of Structure Petrol Engine Diesel Engine Spark Plug is used Employs an injector. Occupies less space Occupies more space Light in weight Heavy in weight Smaller in size Bigger in size

6. Differences between Diesel Engine and Petrol Engine On the basis of Performance Petrol Engine Diesel Engine Thermal efficiency up to 25 % Thermal efficiency up to 40 % Has lower Compression Ratio Has higher Compression Ratio Produce less Power Produce more Power Produce high RPM Produce low RPM Produce low Torque Produce high Torque Fast Acceleration Slow Acceleration Are less Durable Are more D urable

7. Differences between Diesel Engine and Petrol Engine On the basis of Environmental Effect Petrol Engine Diesel Engine Produce low V ibrations Produce high V ibrations Produce low N oise Produce high N oise Produce more CO 2 Emission Produce less CO 2 Emission

8. Differences between Diesel Engine and Petrol Engine On the basis of Economy Petrol Engine Diesel Engine Lower in Price Expensive in Price Lower Maintenance Cost Higher Maintenance Cost Less Fuel Efficient More Fuel Efficient

9. Some A pplications High Speed Vehicles Petrol Engine Diesel Engine High P ower Vehicles

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