Structure Of Diesel Oxidation Catalyst (Doc) System; Feature Of Diesel Oxidation Catalyst (Doc) System; Flow Of Diesel Oxidation Catalyst (Doc) System - Kubota D1803-CR-E4 Workshop Manual

4. ENGINE
9.5 Structure of diesel oxidation
catalyst (DOC) system
The diesel oxidation catalyst (hereinafter referred to as
the "DOC") system is made up of a 2 DOC and DOC
outlet.
(1) Body (DOC outlet)
(2) Catalyst (DOC)
9.6 Feature of diesel oxidation
catalyst (DOC) system
The DOC system burns particulate matter (PM) such as
soot contained in exhaust
aftertreatment on it.
The PM is combusted and changed into carbon dioxide
and water by chemical reaction.
The carbon dioxide is released to the atmosphere.
9.7 Flow of diesel oxidation catalyst
(DOC) system
4-78
(3) Catalyst (DOC)
gas and performs
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
(1) Exhaust manifold
(2) Catalyst (DOC)
(3) Catalyst (DOC)
1. Exhaust gas that passes through the exhaust
manifold flows into the catalyst (DOC) (1).
2. Exhaust gas that passes through the catalyst
(DOC) (1) flows into the next catalyst (DOC) (2).
3. PM is combusted by the catalyst (DOC) (2).
4. Flows from the catalyst (DOC) (2) assembly to the
outside.
MECHANISM
9. Aftertreatment system
(4) Body (DOC outlet)
(5) Outside
(A) DOC assembly
KiSC issued 12, 2018 A