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What does a diesel engine use to ignite the fuel with since it doesn't use a spark plug?
Wiki User
∙ 11y ago
The fuel/air mixture in the cylinder is compressed to the point where it gets hot enough to self ignite.
The fuel/air mixture in the cylinder is compressed to the point where it gets hot enough to self ignite.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoThe fuel/air mixture in the cylinder is compressed to the point where it gets hot enough to self ignite.
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Why diesel engine has more efficiency than petrol engine?
Diesel is a more combustible fuel than petrol, therefore less fuel is required to generate the same power as petrol. This also means that spark plugs aren't required, like in a petrol engine, since the diesel will ignite off engine compression alone. This also makes the engine arguably more reliable since there are less parts, and less things to go wrong.
Why you dont use self detonation in petrol engines?
"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.
Does a diesel car need glow plugs?
Depending on the type of fuel system, a diesel engine may or may not use glow plugs. Glow plugs are generally used on Indirectly Injected diesel engines. They are used to heat the air that is drawn into the engine when the engine is cold. Since diesel engines use the heat created by compression to ignite the fuel/air charge, Glowplugs provide easier and smoother start ups. A Direct Injected diesel engine may use an Intake Air Heater or nothing at all, since the fuel being injected into the combustion chamber is atomized to a much finer degree (and therefor ignites at a lower temperature) than the relatively low injection pressure Indirect Injection system.
What type of oil is used for OM622?
OM 622 uses diesel oil since it has a turbo diesel engine for the Vito. The diesel engine is vital for commercial vehicles whose focus is on economy.
Do you need to plug in a diesel engine?
diesel need not have a spark plug to ignite, just high compression will heat it up since its density is higher than of normal petrol or gasoline. gasoline having a lower density needs can't heat up well after compression and thus needs a spark to ignite it. You may need to plug in the block heater depending on the outside temperature Some older trucks need to be plugged in if the temperature is near freezing.
What is the difference between a diesel engine and a gasoline engine?
The main difference is the way the fuel gets ignited. In a gasoline engine, there is a spark plug connected to coils driven by the points and the distributor, that electrically generate a spark at the right time and ignite the fuel. In a diesel engine, there are no electric parts and no spark plug, and the fuel ignites simply because of heating up up by being compressed. That accounts for diesel engines being much more water-friendly, since getting the high voltage electrics of the gasoline engine wet disables it quite easily. It also accounts for diesel engines starting up harder in cold, since they need to be hot to ignite fuel, not having a spark to aid them do that.Improved AnswerThree Major Difference between Diesel and Gasoline Engine.Type of fuel it uses: Diesel fuel is a less volatile fuel than gasoline but possesses a greater number of BTU's per gallon. As a result, more total horsepower is obtained from a gallon of diesel than a gallon of gas.Type of Ignition: the fuel and air mixture in a gas cylinder is ignited by a spark. In a diesel engine, the mixture is ignited by the heat from compression.Fuel and air mixing: In a gas engine, the fuel and air mix takes place in the carburetor and the intake manifold and the fuel is ignited by a spark plug. In a diesel engine the diesel fuel is mixed with compressed air when the fuel is injected into the cylinder. Because air heats up when it's compressed, the fuel ignites.
What is the difference between a gasoline and a diesel engine?
The main difference is the way the fuel gets ignited. In a gasoline engine, there is a spark plug connected to coils driven by the points and the distributor, that electrically generate a spark at the right time and ignite the fuel. In a diesel engine, there are no electric parts and no spark plug, and the fuel ignites simply because of heating up up by being compressed. That accounts for diesel engines being much more water-friendly, since getting the high voltage electrics of the gasoline engine wet disables it quite easily. It also accounts for diesel engines starting up harder in cold, since they need to be hot to ignite fuel, not having a spark to aid them do that.Improved AnswerThree Major Difference between Diesel and Gasoline Engine.Type of fuel it uses: Diesel fuel is a less volatile fuel than gasoline but possesses a greater number of BTU's per gallon. As a result, more total horsepower is obtained from a gallon of diesel than a gallon of gas.Type of Ignition: the fuel and air mixture in a gas cylinder is ignited by a spark. In a diesel engine, the mixture is ignited by the heat from compression.Fuel and air mixing: In a gas engine, the fuel and air mix takes place in the carburetor and the intake manifold and the fuel is ignited by a spark plug. In a diesel engine the diesel fuel is mixed with compressed air when the fuel is injected into the cylinder. Because air heats up when it's compressed, the fuel ignites.
What does a Glow Plug Do crde engine?
A "glow plug" preheats the cylinder. Diesel engines do not have spark plugs (Diesel's goal was to make an internal combustion engine that could run on anything; he specifically had in mind a kind of slurry made from coal), instead using the heat of compression to ignite the fuel. This usually works fine when the engine is actually running, but it can be difficult to cold start a Diesel engine since the cylinder and block absorb some/most of the compression heat (it's not a problem once the engine's been running, because by then they're already hot). The glow plug exists to preheat the ignition chamber and/or the fuel, making it easier to start the engine from a cold state.
What if gasoline is used in a diesel engine?
Bad Things Will happenEither something expensive or something very expensive is going to happen. Since gasoline is designed to be resistant to self-ignition, gasoline in a diesel engine either won't ignite or will ignite at the wrong time. Some diesel engines run leaner than gasoline engines (meaning that the air-fuel mix has a higher proportion of air than a gasoline engine). That increases the chances that the gasoline won't ignite and that unburnt fuel will be sent into the hot exhaust system--where, ironically, it could ignite, leading to possible exhaust damage. Even if you avoid that disaster, you can expect to pay $500 to drain the fuel tank, clean out the fuel lines, and refill the tank with diesel. Some types of diesel engine use the diesel fuel as a lubricant for the fuel pump (remember, it's a fuel oil). Running gasoline through such a pump could lead to serious damage or failure, leading to a very expensive repair. Hi,your diesel engine will go really quick for a little bit.NOTHING MUCH WILL HAPPEN, the engine will not run or run so badly that you will have to investigate. drain out as much of the incorrect fuel as you can and refill with the correct fuel. If it is a diesel engine, use the primer pump to extract as much gas as possible. You can then top up with the correct fuel with as much as about a 5% mix, starting will take a little time but take it easy, once the engine is running smoothly again you can apply power, but take it easy for the first few miles. IGNORE THE NAYSAYERS, NO DAMAGE WILL BE DONE OVER A SHORT PERIOD. I HAVE DONE THIS ON NUMEROUS OCCASIONS - THOSE THAT SAY OTHERWISE ARE JUST TRYING TO FRIGHTEN YOUR MONEY OFF YOU - I HAVE HEARD THIS COSTING PEOPLE THOUSANDS - ALL UNNECESSARY!
What if you put diesel in a gas engine?
The engine would stop running. You would need to drain the gas tank. If the engine has been allowed to run since the diesel was added you would also need to drain the fuel line.
Can you put regular engine oil into your diesel engine?
No, Diesel oil is needed. Regular oil will not provide the necessary lubrication and it will cause a lot of blow-by smoke as it leaks past the rings since it is too thin.
Who created the first diesel powered vehicle?
Diesel engines were first used in submarines and ships since before they were used in cars. According to "Diesel engine history", a Russian oil company named Branobel designed the first diesel engine for use on a ship, the first of which were launched in 1903.
