The necessary conditions for combustionEngine needs to be burning, burning fuel is severe oxidation reaction, at the same time have a light of fire, and a chemical phenomenon gives off heat. To burn must also have three conditions:
1) the fuelIn the gasoline engine fuel is gas.
2) accelerantThe vast majority of combustion in oxygen in the air as the accelerant.
3) combustion temperature
Make fuel and accelerant beginning violent oxidation reaction of critical temperature, is a kind of fuel, such as ordinary paper in the paper with both the fuel in the air, and fuel, when the ignition, ignition heating paper up to the combustion temperature, three conditions at the same time, there are only the burning of paper, common combustion is continuous combustion, it is exposed to air, accelerant is inexhaustible, as long as keep the combustion temperature and fuel supply, combustion can always continue, piston type internal combustion engine combustion is clearance, burning of fuel in the cylinder is closed, limited and propellants, burn down once, immediately stop burning, such as to burn again, must make a new filling the fuel and propellants, ignite again, said the combustible gas mixture of air and fuel, to improve the combustion rate, must be raised before the ignition can be the temperature of the gas, compressed gas did not achieve the gasoline engine combustion temperature, must be the ignition spark.
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