Injection nozzles for diesel engines inject the fuel into the combustion chamber, atomize it and seal the combustion chamber by means of the nozzle needle. In the Common Rail System, the injection nozzle is part of the injector.

The injection nozzle consists of the nozzle body the cone of which protrudes into the combustion chamber. The injection orifices through which the fuel is injected are bored in the nozzle cone. The number, configuration, length and diameter of these injection orifices permit the shape of the injection spray to be formed in a way that is ideally matched to the engine cylinder.

Inside the nozzle body is the nozzle needle which, when closed, blocks the injection orifices. For fuel injection, the nozzle needle is raised by the hydraulic servo system of the injector so that the injection orifices are opened. The faster the nozzle needle can be opened and re-closed, the more precisely the injection rate can be controlled.

The injection rate and the shape of the injection spray have a decisive influence on fuel consumption and raw emissions from the engine.

 

BOSCH Part No. Stamping No.
F 000 430 900 DSLA137P793
0 433 171 594 DLLA156P889
0 433 171 654 DSLA150P1011  
0 433 171 690  DLLA160P1063/
0 433 171 693 DLLA148P1067
0 433 171 699 DLLA150P1076
0 433 171 712 DLLA156P1107
0 433 171 719 DLLA156P1114
0 433 171 755 DLLA150P1197
0 433 171 771 DLLA148P1221
0 433 171 774  DLLA150P1224
0 433 171 800 DLLA153P1270
0 433 171 889 DLLA150P1437
0 433 175 163 DSLA156P736+
0 433 175 164 DSLA156P737
0 433 175 175 DSLA145P763
0 433 175 196 DSLA142P795
0 433 175 203 DSLA136P804
0 433 175 271 DSLA143P970
0 433 175 272 DSLA144P971+
0 433 175 275 DSLA158P974+
0 433 175 288 DSLA144P1021
0 433 175 297 DSLA140P1033
0 433 175 298 DSLA154P1034
0 433 175 309 DSLA143P1058
0 433 175 333 DSLA154P1129
0 433 175 390 DSLA124P1309
0 433 175 395 DSLA154P1320
0 433 175 416 DSLA156P1411
0 433 175 431 DSLA142P1474
DLLA147P788