To accelerate the fresh air introduction into the center part of a fuel spray group of fuel injected into a combustion chamber, and burn injected fuel in a desired condition.
This injection nozzle 30 is constituted so that plural nozzle hole groups 40 constituted of the collections of plural fine nozzle holes 41, 42, and 43, can be arranged at intervals with each other in the peripheral direction of the nozzle 30 in the nozzle tip part 31. In this case, individual fine nozzle holes 41, 42, and 43, in the respective nozzle hole groups 40, are formed with prescribed spreading angles for expanding injected fuel with each other. Moreover, all the fine nozzle holes 41, 42, and 43 are opened in offset positions in the peripheral direction of the nozzle 30 so as not to be overlapped with each other in the axial direction of the nozzle 30.
SHIMADA TAIZO
HARUFUJI SHIGERU
SHOJI TAKESHI
KAWAI KENJI
YAMADA AKIHARU
FUKUOKA HIROKI
INO HIROSHI
MITSUBISHI MOTORS CORP