1 compression ratio noun
degree of the engine compression ratio is the mixed gas is compressed, the cylinder volume (i.e., combustion chamber volume) of the total volume of the cylinder after compression and before the compression ratio represented . Ratio is a key factor affecting the power, torque output of compression. While the technical parameters of an engine, presumably by the size of power and torque to marked. Compression ratio gasoline typically 6-10, a relatively high compression diesel engines, typically 16-22.
the compression ratio and engine performance has a lot, when the gasoline engine is running, usually sucked in a mixed gas of gasoline and air are mixed in the compression process the piston up, in addition to the extrusion of the mixed gas volume is reduced, but also the occurrence of eddy currents and turbulence two phenomena. When the gas in the sealed container is compressed, the pressure is raised with increasing temperature. If the compression of the engine is relatively high, the compression cylinder pressure and the resulting temperature increase is relatively gasoline molecules in the gas mixture can be vaporized more completely, more dense particles, combined with just said swirl and turbulence effects and the resulting sealing effect high compression ratio, such that movement of the next moment, out of the spark when the spark plug so that it can complete the combustion of the mixture gas in the instant action, the largest burst release of energy to the power output of the engine becomes. Conversely, prolonged burning, energy-consuming and increases the temperature of the engine and is not involved in engine power output, so we can know, a high compression ratio of the engine means may have a greater power output.