What three things does an engine need to run – car talk – nigeria year 6 electricity worksheets

Oxygen is not necessary natural there are places with nature where there is no oxygen .Lets go back to the Engine, Like I stated earlier, for combustion to take place there must be oxygen o2 or else the chemical process will never take place, The valves controls inlet and outlets which forms part of the drive train controlled by ur ECU.This why you have the O2 Sensors.

You said there are places where there is no oxygen, where is that if i may ask? Cos even aeroplanes that fly at 4000ft above the ground use the naturally occuring oxygen available in the air to run its jet engines. There is no where on the earths atmosphere where the is no oxygen. The only difference is that the amount of oxygen in the air varies with altitude so aeroplanes rely on air compressors to increase the amount of oxygen delivery to the engines.

To answer the question of the 3 things necessary to run an engine, the best ans is fuel, spark and compression. When the engine starts running you will need others like controled timing, lubrication, cooling etc Re: What Three Things Does An Engine Need To Run? by erico2k2( m): 9:02am On Sep 24, 2014

You said there are places where there is no oxygen, where is that if i may ask? Cos even aeroplanes that fly at 4000ft above the ground use the naturally occuring oxygen available in the air to run its jet engines. There is no where on the earths atmosphere where the is no oxygen. The only difference is that the amount of oxygen in the air varies with altitude so aeroplanes rely on air compressors to increase the amount of oxygen delivery to the engines.

To answer the question of the 3 things necessary to run an engine, the best ans is fuel, spark and compression. When the engine starts running you will need others like controled timing, lubrication, cooling etcAs for places without Oxygen try the atmosphere, scientist are arguing about the presence of oxygen in the Moon and mars till date.You said Air gets into the Combustion Chamber from natural source without inducement of any kind, so if that’s the case how does it get controlled to give the right amount?don’t forget the Air in question is 21%oxygen(This is what the Engine uses) and 78%Nitrogen the Engine don’t need and passes through.These Jagons I just wrote up there are contained i n the Combustion Equation hence I stated it up there.Thats what chemically goes on in the Engine, the bit b4 the= sign is the Engine the bit after is the exhaust or end product that goes to the Cat converter. Re: What Three Things Does An Engine Need To Run? by adanny01( m): 3:03pm On Sep 24, 2014

As for places without Oxygen try the atmosphere, scientist are arguing about the presence of oxygen in the Moon and mars till date.You said Air gets into the Combustion Chamber from natural source without inducement of any kind, so if that’s the case how does it get controlled to give the right amount?don’t forget the Air in question is 21%oxygen(This is what the Engine uses) and 78%Nitrogen the Engine don’t need and passes through.These Jagons I just wrote up there are contained i n the Combustion Equation hence I stated it up there.Thats what chemically goes on in the Engine, the bit b4 the= sign is the Engine the bit after is the exhaust or end product that goes to the Cat converter.

Am sure you dont have an intention to use your engine in Mars or the moon. Engines that we have been designing are for use on earth with few that are used on space shuttles foe that purpose. You just challenged me to research on the space shuttles and the engines.

The earths atmosphere starts from sea level up to 100km altitude and this contains mainly Nitrogen then oxygen et al as you said. Air is measured by Atmospheric pressure and this decreases with higher altitude. At high altitudes a human may suffer altitude sickness or faint not because oxygen is deminished in the air but because the atmospheric pressure at which the lungs is made to work is now too low. On the flip side, breathing below the sea level is very difficult because the pressure at that level is very high and goes even higher if you go further below. Its not lack of oxygen but either high or low atmospheric pressure. Same reason why aeroplane cabins are pressurized.

Now, to achieve compression, the combustion chamber has to be air tight and open up to let in air and fuel. These types of engines draw in air by the simple act of downward movement of the piston hence the name ‘Naturally aspirated’. Other types of performance engines employ induced aspiration with the turbo chargers and the superchargers. We should be limiting ourselves on this thread to an ordinary engine which gets its oxygen source from nowhere but the atmosphere just like you breath since you dont buy it or store it. Even the engines that get induced get oxygen free and in abundance. The question even says ‘things you need’, am sure you have oxygen already so you dont need what you already have. What you need is fuel, ignition and compression.

Lastly, control of air (butterfly valve) is necessary, same as the control of fuel (injectors using oxygen sensors and ecu), ignition timing (using coil packs and ecu) and even ‘compression timing’ which is relative to the valve timing, piston rings optimization with names that you hear like twin cam, iVTEC, VVTi etc. All these things need to be controlled cos they are required to work and rely on each together. If nothing is controlled then the engine might turn out to be a bomb! Re: What Three Things Does An Engine Need To Run? by erico2k2( m): 5:24pm On Sep 24, 2014

Am sure you dont have an intention to use your engine in Mars or the moon. Engines that we have been designing are for use on earth with few that are used on space shuttles foe that purpose. You just challenged me to research on the space shuttles and the engines.

The earths atmosphere starts from sea level up to 100km altitude and this contains mainly Nitrogen then oxygen et al as you said. Air is measured by Atmospheric pressure and this decreases with higher altitude. At high altitudes a human may suffer altitude sickness or faint not because oxygen is deminished in the air but because the atmospheric pressure at which the lungs is made to work is now too low. On the flip side, breathing below the sea level is very difficult because the pressure at that level is very high and goes even higher if you go further below. Its not lack of oxygen but either high or low atmospheric pressure. Same reason why aeroplane cabins are pressurized.

Now, to achieve compression, the combustion chamber has to be air tight and open up to let in air and fuel. These types of engines draw in air by the simple act of downward movement of the piston hence the name ‘Naturally aspirated’. Other types of performance engines employ induced aspiration with the turbo chargers and the superchargers. We should be limiting ourselves on this thread to an ordinary engine which gets its oxygen source from nowhere but the atmosphere just like you breath since you dont buy it or store it. Even the engines that get induced get oxygen free and in abundance. The question even says ‘things you need’, am sure you have oxygen already so you dont need what you already have. What you need is fuel, ignition and compression.

Lastly, control of air (butterfly valve) is necessary, same as the control of fuel (injectors using oxygen sensors and ecu), ignition timing (using coil packs and ecu) and even ‘compression timing’ which is relative to the valve timing, piston rings optimization with names that you hear like twin cam, iVTEC, VVTi etc. All these things need to be controlled cos they are required to work and rely on each together. If nothing is controlled then the engine might turn out to be a bomb!I Understood all you are saying, check what you wrote as factors needed,how many or which of them is physical and mechanical?Im trying to narrow the argument