フクゴウ ネンリョウ ノ セタンカ ニツイテ (ダイ1ポウ)

The character of C.F.R-48 Diesel Engine was studied in detail, and then cetane number of19 simple or hybridized fuels were measured. As the results the followings were obtained.(1) The cetane number rating by the C.F.R Diesel Engine contains some questions. 1stof them is in the change of fuel injection character owing to the change of fuel properties,and 2nd is in the change of gas condition inside the cylinder owing to the change of compressionratio.(2) It seems not preferable to rate the ignition character of fuel having far removedmaterial properties by cetane number.(3) Some fuels increase cetane number by hybridizing with other fuels, and some othersare in contrast with this