Increasing fuel efficiency by turning the gasoline into a vapor before it enters the cylinder.
Direct injection is a great idea because of the fewer steps the gasoline has to go through before it gets into the cylinders. One thing I think needs to be changed with direct injection is the state in which the gasoline is in when it goes into the cylinders. The gasoline is still in droplets, not in a vapor. A great example of the fact that it isn't the gasoline itself burning, but rather the vapors, is an experiment the Mythbusters did. They laid three fuels out in a line, in separate tests to see which one burns faster. The fuels were: gasoline, jet fuel and I believe diesel fuel. Not one burned! I know it amazed me too! Not one burned until the fumes had a chance to come off of the fuel. Right now, from my limited understanding/research, we throw the fuel into the cylinders as a mist. If there could be some way to turn that gasoline into its gaseous state before it gets into the cylinders, I think fuel efficiency could be Greatly increased. A couple of ways this could be done is by putting some kind of a heat source around the gas tank to slowly vaporize the fuel. The car doesn't immediately have to heat up and turn the fuel into a gas, It could run normally until the car gets heated up and then start to do its thing. And/or you could force the gasoline into increasingly smaller metal piping, thereby increasing the surface area to heat up the gasoline. This should decrease the amount heat needed to turn the gasoline into a vapor. Then somehow modify the direct injectors so that some air and the gas in its gaseous state would be evenly blown into the cylinders. This should decrease, even further, the amount of fuel needed to ignite and move the cylinder.
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