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"Petrol", or gasoline, engines require a spark plug to ignite the fuel and air mixture to generate energy on the power stroke in a typical four stroke engine (Intake, Compression, Power, Exhaust). Diesel engines use what is sometimes called "compression ignition" to ignite the fuel air mixture on the power stroke. I'll assume by "self-detonation" you mean ignition by something other than a spark plug. Gasoline cannot be used in a diesel engine, nor can diesel fuel be used in a gasoline engine. Engine damage can occur in either scenario. Diesel fuel is less refined than gasoline so is more oily. This helps lubricate and cool the inside of the diesel combustion chamber that operates at much higher temperatures. In a gasoline engine, combustion temperatures are lower so the oil does not burn off and will cause excessive and heavy smoke. I'm not sure if gasoline would even work in a diesel engine because gasoline has a lower flash point than diesel and would ignite too soon and burn too fast in the diesel combustion chamber. Perhaps another, more knowledgeable, contributor could shed some light on that one.
The bottom line is if the engine is "self-detonating", aka compression ignition, it would be a diesel engine not a "petrol engine". The engine cannot be both petrol and compression ignition - it just wouldn't work. Diesel engines have become better and better in recent years since automakers have put R&D money into projects, and VW now has the TDI diesel that is powerful, efficient, economical, and reliable.
What else can I help you with?
Who makes tesco petrol lawnmower engines?
Can't get answer from Tesco and Wikipidea doesn't know - Note to self... do not buy a Tesco branded Petrol lawnmover in future.
Why in petrol engine spark plug is used but not in diesel engine?
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.
Why you cannot convert a petrol engine into a diesel engine?
Diesel engines fire on compression rather than spark. This requires that a diesel engine be made much stronger than a petrol engine. All internal components are made to much stronger specifications. A petrol engine could not handle the higher compression and would self destruct.
How diesel engens work?
first its spelled engines, second it's the same thing as a normal engine except detonation is not by spark-plugs but by compressing the air and fuel so much that it gets so hot that it ignites it's self
Why can't petrol be compressed and ignited as in the case of diesel engines?
petrol self ignition temperature is high and requires a spark plug instead to ignite.where as diesel ignites automatically under pressure because of low self ignition temperature without any spark plug....hence petrol cannot be used inplace of dieselWarning: The above answer is absolutely incorrect. Petrol's flash point is significantly below, not above, diesel. The heat needed for ignition in a diesel engine comes from a compression ratio of over 20:1. Petrol engines have compression ratios of less than 10:1. Even at this lower compression ratio, petrol will still sometimes flash over or "detonate," causing the engine to "knock." This kind of nonsense is why I stopped posting here.
Do petrol engine have self motor?
yes
Explain the working of four stroke petrol engine?
It differs from a diesel engine in the method of mixing the fuel and air, and in the fact that it uses spark plugs to initiate the combustion process. In a diesel engine, only air is compressed (and therefore heated), and the fuel is injected into the now very hot air at the end of the compression stroke, and self-ignites. In a petrol engine, the fuel and air are usually pre-mixed before compression (although some modern petrol engines now utilise cylinder-direct petrol injection). The pre-mixing was formerly done in a carburetor, but now (except in the smallest engines) it is done by electronically-controlled fuel injection. Pre-mixing of fuel and air allows a petrol engine to run at a much higher speed than a diesel, but severely limits their compression, and thus efficiency
Why can't we increase compression ratio in petrol engines?
Because that would make the compressed air so hot that the gas/fuel mixture would self ignite, and you don't want that. Gas engines rely on spark plugs to have the the cylinger ignite at the right moment. W/o it you get an uncontrolled flame front, knocking, rough running and maybe even engine damage
Why are self-management skill important?
so you dont over do it ..... you dont get crazy and suicidal....totake self control
What should be done when fill petrol in diesel car?
Drain out the petrol and replace it with diesel. Empty the fuel filter bowl and dry the element. Refill with fresh diesel. Prime the injectors (if not self priming). Turm the ignition on and off a couple of times to get the glow plugs good and hot. Crank the engine with just a touch of accelerator. It will start rough then smooth out. Modern diesel engines have catalytic converters that can get damaged/compromised by running on petrol. Provided you have not run it for more than a couple of minutes there is a good chance you will get away with it.
What is a sentence for the word ridges?
I DONT KNOW WHY DONT YOU DO IT YOUR SELF DUMMY! :-p you cant do everything on the internet
Platform racing 2 cheats?
dont ask for cheats just earn it your self and i dont think there are any cheats but there are glitches
