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Cordierite Wall Flow Particle Filter for Diesel Vehicles (DPF)

DPF Filters are one kind of wall-flow monolith, the channels are open at one side, but plugged at the other. it will be installed in the diesel car exhaust system, to reduce particulate matters (PM) of exhaust by trapped. The main components of Diesel engine exhaust are particulate matter(PM), carbon monoxide(CO) and hydrocarbons(HC), Diesel Particulate Filters Can reduce them by 90+% from diesel engines

 

Physicochmical properties

Item No. Item Unit Data
1 Coefficient of thermal expansion 10-6/k 1.2
2 Compressive strength A axis Mpa >9
    B axis   >3
3 Water absorption % >30,>40
4 Apparent porosity % >40,>50
5 Average pore size ɥm 10±3,18±3
6 Softening temperature 1360
7 Appearance density g/l 400-480
8 Thermal shock resistance - 650℃ cycle 3times without cracking
9 Cordierite content % 90

Size specification

Type Shape Hole density Thickness(mm) Outer diameter Tolerance (mm)
Cordierite DPF (Symmetry) Square 100 0.36-0.4 150 50-320
Cylindrical

100-300

0.2-0.4

80-305

50-305

 

Oval,Runway shape Customize
Special shape
Cordierite DPF (asymmetric) Cylindrical

300

0.2-0.25

Customize

Oval,Runway shape
Special shape

If the DPF is coated with precious-metal (such as Pt, Pd and Rh), black smoke with carbon particulate from diesel engine pass through a special tube and enter the filter. The carbon smoke particulate is absorbed to the filter made of metallic fiber felt, when passing the inner dense set and bag-style filter. When particulate absorption reaches some degree, the tail burner would be ignited to burn automatically. In this case, the particulate absorbed been burned out and turned into nontoxic CO2 then discharge. The full device is designed as double room structure, and filtration and recycle are going in different areas, making them non-disturbed. The system can work automatically whatever working condition the engine in. Especially made honeycomb ceramic particulate filter, acts as capturing device to the particulate to some extent.

Size CPSI Volume(L)
φ118*152.4 100/200 1.67
φ118*254 100/200 2.78
φ127*152.4 100/200 1.93
φ127*180 100/200 2.3
φ127*254 100/200 3.22
φ144*152.4 100/200 2.49
φ144*203 100/200 3.31
φ144*254 100/200 4.44
φ144*305 100/200 4.97
φ190*152.4 100/200 4.32
φ190*203 100/200 5.76
φ190*305 100/200 8.65
φ240*240 100/200 10.9
φ240*305 100/200 13.8
φ250*305 100/200 14.97
φ267*254 100/200 14.22
φ267*267 100/200 14.95
φ267*305 100/200 17.07
φ286*305 100/200 19.6
φ286*355 100/200 22.8
φ305*305 100/200 22.28
φ330*381 100/200 32.59

 

 


Post time: Dec-25-2025