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Why in petrol engine spark plug is used but not in diesel engine?
Wiki User
∙ 14y ago
Diesel engines run much higher compression than petrol engines. The higher compression makes the air in the cylinder so hot that the fuel self ignites. A petrol engine doesn't get warm enough for self ignition, so you have to add a spark from the spark plug to ignite the fuel.
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoA spark plug is needed to ignite the Air fuel mixture in the cylinder causing combustion and making the engine run.. Diesel engines use compression to ignite the fuel when it is squirted into the high temperature compressed air in the cylinder.
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Can you use diesel engine instead of petrol engine with using injector instead of spark plug?
No!
Why petrol engine is called spark ignition engine?
Because the fuel is ignited by a spark plug rather than by compression as is the case with a diesel.
What are the defferences between dessel and petrol engine?
Petrol & Gas engines are spark ignited engines where as diesel engines are compression ignited engines. Petrol engines works with explosion of fuel air mixture due to spark from spark plug inside the cylinder. Diesel engines works with combustion of fuel air mixture due to compression, compressed mixture attains a very high temperature which exceeds the flash point of diesel and starts burning inside the cylinder and the hot gases after burning of fuel misture exerts force on piston which makes the diesel engines work. Diesel engines are highly efficient than petrol engines.
What are the basic different between the petrol and diesel engine?
Well gasoline engines have a spark plug that ignites the gasoline as it is injected into the engine. Diesel engines have no spark plugs because the high compression ignites the fuel as it is injected. Because it releases higher energy density, diesels get better fuel economy.The main difference between a diesel and a gasoline (petrol) engine are the way the fuel is ignited. In a gasoline engine, a fuel/air mixture is introduced into the cylinder either through a carburetor or fuel injection system, where it is then compressed and ignited with a spark. In a diesel engine, air is compressed in the cylinder which heats it to about 1000 degrees F (550 degrees C), then fuel is injected under high pressure and ignited by the superheated air. To accomplish this, diesel engines also have higher compression ratios than gasoline engines.
Why do you plug in diesel engine?
The "plug" powers an coolant heater. A diesel engine starts easier if the engine is warm.
How do you distinguish between a petrol engine and diesel engine when they are not working?
If the engine has spark plug it is said to be petrol engine, and if it has a pump to inject fuel then it is diesel engine.
Is spark plug necessary to run a petrol engine?
unless its a diesel, yes
Can you use diesel engine instead of petrol engine with using injector instead of spark plug?
No!
What is spark ignition or Diesel?
spark ignition engine is also known as petrol engine. but in diesel engines the fuel is burnt due to the high compression of air.so there is no need of spark plug
Why petrol engine is called spark ignition engine?
Because the fuel is ignited by a spark plug rather than by compression as is the case with a diesel.
What is the symbol of glowplug on a petrol engine for?
it could be for the spark plug, petrol engines dont need glow plugs, diesel engines do
What haappens if diesel is used in petrol engine?
The engine wont run because the octane count of diesel is lower compared to the octane count of gasoline. Diesel has a different method of combustion and the spark of spark plug is not enough to fire a diesel engine.
What is defference between disel engine and petrol engine?
Diesel engines have a far higher compression which allows the diesel fuel to explode without the use of a spark plug.
What are the defferences between dessel and petrol engine?
Petrol & Gas engines are spark ignited engines where as diesel engines are compression ignited engines. Petrol engines works with explosion of fuel air mixture due to spark from spark plug inside the cylinder. Diesel engines works with combustion of fuel air mixture due to compression, compressed mixture attains a very high temperature which exceeds the flash point of diesel and starts burning inside the cylinder and the hot gases after burning of fuel misture exerts force on piston which makes the diesel engines work. Diesel engines are highly efficient than petrol engines.
Where can i find the glow plug in ford modeo diesel?
The glow plug is the diesel version of a spark plug. There are 4 glow plugs (1 for each cyl.) located usually near the injector on top of the cylinder head.AnswerThe glow plug is NOT the diesel version of a spark plug, they both do different jobs. The glow plug is there to aid starting when the engine is cold. The spark plug is there to provide the spark for combustion to take place in a petrol/gasoline engine.
How is the engine ignited?
A petrol engine is ignited by a spark plug, and a diesel engine is ignited by the heat produced from the air/ fuel mixture being compressed in the cylinder
What is the difference between petrol and diesel engines?
diesel engines doesn't use spark plug but uses heater plug.petrol engines produces more torque than petrol engines but petrol engines produces more acceleration than diesel engines.petrol engine is faster to be heated than diesel engine.
