FUEL FOR PREMIXED COMPRESSED SELF-IGNITION TYPE ENGINE

摘要

PROBLEM TO BE SOLVED: To provide fuel capable of sufficiently exhibiting engine characteristics of a premixed compressed self-ignition type engine capable of attaining low NOxdischarge gas, low fuel cost and high heat efficiency at the same time. SOLUTION: The fuel for premixed compressed self-ignition type engine has the following distillation property (1) and fulfills the following required conditions (2) and (3). (1) Initial boiling point is <45°C and 50% distillation temperature is≥60°C and≤105°C and final boiling point is≥120°C and≤210°C. (2) 4×E1+3×E2+2×E3-1×E4-4×E5≥100 [wherein E1 is a fraction having <70°C boiling point; E2 is a fraction having≥70°C and <100°C boiling point; E3 is a fraction having≥100°C and <130°C boiling point; E4 is a fraction having≥130°C and <160°C boiling point; E5 is a fraction (vol.%) having≥160°C boiling point]. (3) RON-CN≤85 [wherein RON represents a research method octane number; CN represents a cetane number]. COPYRIGHT: (C)2004,JPO