DAILY MCA2014 4x4 ‒ BODYBUILDER INSTRUCTIONS
ADBLUE AND SCRT SYSTEM
6.1 GENERAL INFORMATION
5
– Printed 603.95.994 – 1 Ed. - Base 05/2015
ADBLUE AND SCRT SYSTEM
6.1 GENERAL INFORMATION
To comply with Euro VI requirements on engine gas emissions, IVECO has developed the "SCRT" (Selective Catalytic Reduction
Technology) system, consisting of the combined action of a diesel particulate filter (DPF) and post-treatment of exhaust gas (SCR).
This post-treatment requires the use of an additive, commercially known as AdBlue (urea solution+water).
6.2 THE NITROGEN OXIDE CATALYTIC REDUCTION PRINCIPLE
The additive AdBlue, is sent from a dedicated tank by means of a SM (Supply Module) pumping module to a DM (Dosing Module)
which injects AdBlue into the exhaust pipe. The mixture of exhaust gas and additive is then fed into the catalytic converter and
chemically transforms NO
x
into nitrogen and water, which are harmless to the environment.
Main components of SCRT system
208930
Figure 1
1. Diesel Oxidation Catalyst
2. Diesel Particulate Filter
3. Selective Catalytic Reduction
4. Clean Up Catalyst
5. Dosing Module
6. Temperature sensors
7. DPF Δp sensors
8. NO
x
sensors
9. NH
3
Sensor
10. Mixer
DOC : to oxidise the exhaust gas components through the use of oxygen.
DPF : to eliminate the particulate before SCR through passive regeneration.
SCR : to reduce the NO
x
through the injection of AdBlue.
CUC : to eliminate the ammonia residues (NH
3
).
6.3 INSTRUCTIONS
The following instructions are intended for the AdBlue injection system of the Bosch DeNO
X
3.1 type.
Note
The materials and layouts of normal IVECO production are specifically approved; all other circumstances of variation must be spe-
cifically authorized.
If changes are made to the chassis which involve this system, the following procedure must be followed under all circumstances:
● all post-treatment components must be installed under extremely clean conditions;
● the protection caps of the SM, DM and the AdBlue pipe bundle may only be removed just before assembly;
To Next Page
Loading...
Need help?
General
