This is made possible by the variable intake system with a throttle valve enlarged from 76 to 82 millimeters, the optimized cylinder heads and an exhaust system with low backpressure.
这是可能的变量与节流阀进气系统增加到76到82毫米、优化缸盖和排气系统压力较低。
2
High delivery lift and high backpressure required in fuel throttle valve test were obtained through higher rotation speed of the main pump.
利用长征系列发动机主泵作为动力源，提高其转速，解决了燃料节流阀试验要求的高扬程、高背压等技术难题。
3
It can also be used as a second stage separator and hold a constant backpressure by using its automatic pressure control valve on the gas outlet.