Technical Paper
Injection Pressure Characteristics of Palm Methyl Ester and Diesel in Solenoid Injector under Common-Rail System
2016-03-27
2016-01-1729
Nowadays, the diesel engine models are developed from a unit pump to a common-rail injector. With palm methyl ester (commonly known as biodiesel) with higher viscosity and density than conventional diesel being used as alternative fuel for diesel, palm methyl ester may affect the injection characteristics. Injection pressure is one of the important parameters of common rail injector. Because of its effects on the pressure between command port and control volume, which activates a needle lift during injection process. This paper presents injection characteristics of solenoid injector experimented in a Zeuch’s chamber with a focus on injection pressure frequency, injection pressure amplitude, injection pressure stable duration. Commercial diesel (with mandate of 5% biodiesel blend or B5) and palm methyl ester (B100) were used as the test fuels at various injection pressures (40, 80, 120 and 160 MPa).
