Effect of Pilot Injection with Various Starts of Second Injection Command (SOIC2) and Fuel Injection Pressures on Gasoline Compression Ignition Combustion

Table 4

Operating conditions.

Speed (rpm)	1500
Net indicated mean effective pressure (bar)	4.0
Intake pressure (kPa)	125
Intake temperature (°C)	80
EGR (%)	0
Intake O2 (%)	21
Split ratio	65/35
Fuel mass/cycle (mg)	11
Design	Common rail
Injector	Bosch CRIP2
Nozzle included cone angle (°)	155
Nozzle hole diameter (mm)	0.141
Number of nozzle holes	7
Rail pressure (bar)	400–800