... gas density, pressure ratio increases, so that the full combustion of fuel within a short time, so as to achieve savings in ... vehicles.3, the five major functions:1, high-low speed combustion 2 to remove coke 3, gaining momentum to 4, to ... , six characteristics:1, well-designed, well made2, fuel-saving results are obvious: with pressurized fuel-efficient vehicles, the rate of 8% -15 ...