the compression ratio in petrol engine is kept less than in diesel engine because
Answers
Answered by
0
Hey, here is your answer...
Petrol engines are spark ignition engines and petrol burns quickly as compared to diesel because it is more volatile in nature and it also has a low octane number (in regular petrol).So if more compression is given it may result into knocking of the engine so petrol engines have a low compression ratio.
Therefore compression ratio is lower in petrol engines usually of 6 to 14. 2. In diesel engines, the combustion occurs due to the self ignition of fuel at (350 deg). To attain self ignition temperature the diesel engines should have higher compression ratios.
Petrol engines are spark ignition engines and petrol burns quickly as compared to diesel because it is more volatile in nature and it also has a low octane number (in regular petrol).So if more compression is given it may result into knocking of the engine so petrol engines have a low compression ratio.
Therefore compression ratio is lower in petrol engines usually of 6 to 14. 2. In diesel engines, the combustion occurs due to the self ignition of fuel at (350 deg). To attain self ignition temperature the diesel engines should have higher compression ratios.
Similar questions