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In the test, the engine run at a specific speed when fuel consumption (Be) and torque remained constant. An ETAS calibration system is used to control the Maps for adjusting the rail pressure and injection timing. Experimental data show that when fuel injection is delayed, fuel consumption, CO and HC increase while formation of NOx reduces. The formation rate of pre-mixed gas is proportional to the...
The challenge for the high speed direct injection (HSDI) diesel engines today is to reduce harmful emissions of diesel engines, such as particulate matter (PM) and Nitrogen oxides (NOx), and enhance the fuel efficiency and power. To meet this challenge, more accurate control of injection parameters such as the injection timing, injection rate, and injection quantity is required. Compared with solenoid...
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