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Show VAPOR SPEEDS j TO CYLINDERS Atomized Gasoline Passes Like Lightning Through Manifold i i Tho fuc'l we feed our human bodies must be readily digestible to be nutritious; nu-tritious; the fuel we feed our engines! must be equally digestible to b ef-1 fectlve. That Is, the gasoline must evaporate readily; It must be volatile SO that it will quickly become a vapor and mix with air in explosive proportions pro-portions in order to produce energy and power This is what an expert on gasoline-states gasoline-states in the official publication of tho American Automobile association j Ills article continues to discuss the subject as follows. I "Do you realize what happens in: your onglne when you put your foot 1 on tho gasoline accelerator'.' Well, think of your carburetor in terms of a medicinal atomizer, tho ' kind you use to spray a sore throat, because t"he carburetor atomizes the liquid gasoline Into an air stream This air stroain passes into tho en-j j glne at a high velocity, and as It passes through the carburetor to the engine It must mix with air In ex- plosive proportions "TVio pnsnllni' will Tint Imrn nrnn. I eri unless it Is vaperlzed bv the time it reaches the cylinder, because fuel that roaches the cj'Undor In an unvaporized form smoke produces soot and does not burn clean It wastes energy Instead of producing ! it The readiness with which gasoline gaso-line must give up Its power is shown by th fact that it reaches the cylinder cylin-der from the carburetor In loss than one-fiftieth of B second "Just as gasoline must be volatile so as to vaporize quickly, so also it must burn rapidly For maximum power, it must burn In less than one' one-hundredth of a second. It mustj not. however, burn I nsta nta neously i like dynamite, because then it wtlll cause a knock In your engine like the. well-known carbon knock. Neither must it Ignite from an hot engine! parts valves, and ao forth, until the' spark comes. If It does, you'll have a ruse of pre-lgnltion. 'In addition to being volatile a gasoline must also be pure, because an Impure gasoline vvlll burn unclean ly, and may leave sticky substance on the cylinder walls which will "glue' road dust and carbon soot Into, the combustion space." |