| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel supplier for an internal combustion engine which performs more adequate fuel injection corresponding to even when changing a composition and a condition of fuel. SOLUTION: This fuel supplier for an internal combustion engine, based on a fuel temperature (tank fuel temperature TT) and a fuel pressure (tank fuel pressure TP) of liquefied petroleum gas in a fuel tank 21, estimates a fuel composition (propane ratio R) to calculate a saturated vapor pressure curve of the liquefied petroleum gas. From these saturated vapor pressure curve and tank fuel temperature TT, a saturated vapor pressure ESP of the liquefied petroleum gas in a fuel injection mechanism 26 is obtained, based on these saturated vapor pressure ESP and tank fuel pressure TP, a condition of the liquefied petroleum gas in the fuel injection mechanism 26 is estimated. When the condition of the liquefied petroleum gas in the fuel injection mechanism 26 is estimated to be not in a liquid phase, a valve opening time T0 of a fuel injection valve 20 is corrected. |
