Iveco Stralis MY 2016, Инструкция для тренажера

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NEW STRALIS MY2016
‒
GUIDELINES FOR BODYBUILDERS
ADBLUE AND SCRT SYSTEM
6.1 GENERAL INFORMATION
5
–
Printed 692.68.697
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5 Ed. - Base 03/2019
ADBLUE AND SCRT SYSTEM
6.1
GENERAL INFORMATION
To comply with Euro VI requirements on engine gas emissions, IVECO has developed the "Hi-e SCR" system (High-efficiency Se-
lective Catalytic Reduction), consisting of the combined action of a diesel particulate filter (DPF) and post-treatment of exhaust
gases (SCR).
This post-treatment requires the use of an additive, commercially known as AdBlue (urea swater).
6.2 THE NITROGEN OXIDE CATALYTIC REDUCTION PRINCIPLE
The additive AdBlue, is sent from a dedicated tank by means of a SM (Supply Module) to a DM (Dosing Module) which injects Ad-
Blue into the exhaust pipe. The mixture of exhaust gas and additive is then fed to the catalytic converter and chemically transforms
NO
x
into nitrogen and water, harmless to the environment.
In order to comply with Euro VI, new assemblies (DOC, passive DPF, CUC) and sensors are used which act as parameter control
functions.
Main components of SCRT system
245557
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 Δ p sensors
8. NO
X
sensors
9. NH
3
Sensor
10. Mixer
11. PM sensor
DOC
(Diesel Oxidation Catalyst) : to oxidise the exhaust gas components through the use of oxygen
DPF (Diesel Particulate Filter) : to eliminate the particulate before the SCR through passive regeneration.
SCR (Selective Catalytic Reduction) : to reduce the NO
x
through the injection of AdBlue.
CUC (Clean Up Catalyst) : to eliminate the ammonia residue (NH
3
) so as to satisfy legal requirements.