TY - JOUR
T1 - Effects of fuel temperature on injection performance of an EUP system
AU - Liu, Fushui
AU - Hu, Ruo
AU - Li, Yikai
AU - Yang, Ziming
AU - Xu, Hongming
N1 - Publisher Copyright:
© IMechE 2017.
PY - 2019/2/1
Y1 - 2019/2/1
N2 - The fuel temperature has a great influence on the characteristics of an electronic unit pump (EUP) system, especially on the injection performance. This paper studies the regularity of the high-pressure fuel supply system performance at different fuel temperatures. The injection quantity, the injection rate, the fuel pressure, and the needle lift were measured by the EUP system test bench. Investigation results showed that, with the increase of fuel temperature, the injection quantity and maximum injection rate decreased, the time of start injection was delayed, and the peak fuel pressure value decreased. For the needle valve, as the temperature was raised its closing time was advanced at low speed conditions but delayed at high speed conditions. In addition, the empirical equations for the fuel temperature effects on the circulating fuel injection quantity and peak pressure are proposed by the experimental test and simulation data. This study will help to further apply and study the engine, and provide a reference for engine fuel supply control system design.
AB - The fuel temperature has a great influence on the characteristics of an electronic unit pump (EUP) system, especially on the injection performance. This paper studies the regularity of the high-pressure fuel supply system performance at different fuel temperatures. The injection quantity, the injection rate, the fuel pressure, and the needle lift were measured by the EUP system test bench. Investigation results showed that, with the increase of fuel temperature, the injection quantity and maximum injection rate decreased, the time of start injection was delayed, and the peak fuel pressure value decreased. For the needle valve, as the temperature was raised its closing time was advanced at low speed conditions but delayed at high speed conditions. In addition, the empirical equations for the fuel temperature effects on the circulating fuel injection quantity and peak pressure are proposed by the experimental test and simulation data. This study will help to further apply and study the engine, and provide a reference for engine fuel supply control system design.
KW - Fuel temperature
KW - fuel pressure
KW - injection quantity
KW - injection rate
KW - needle lift
UR - https://www.scopus.com/pages/publications/85045068799
U2 - 10.1177/0954407017746280
DO - 10.1177/0954407017746280
M3 - Article
AN - SCOPUS:85045068799
SN - 0954-4070
VL - 233
SP - 671
EP - 686
JO - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
JF - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
IS - 3
ER -