High-Performance Diesel Engine Ceramic Particulate Filter with High-Density Honeycomb Porous Structure and 95% Filtration Efficiency

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Product Description

High-Performance Diesel Engine Ceramic Particulate Filter (CDPF/DOC)

This advanced ceramic particulate filter serves as a core component in diesel engine exhaust aftertreatment systems. Engineered with precision ceramic materials featuring a high-density honeycomb porous structure, it effectively captures and catalytically oxidizes carbon soot particles (PM) from exhaust gases. Essential for meeting China VI and higher emission standards while improving engine environmental performance.

Working Principle

Exhaust gases flow through the honeycomb ceramic substrate, where carbon soot particles are intercepted and deposited on the micropore surfaces. During system regeneration, accumulated particulate matter undergoes oxidation and cleaning at elevated temperatures through catalytic action, enabling periodic filter cleaning and maintaining sustained high-efficiency operation.

Core Technical Features

Feature	Parameter/Description	Technical Advantage
Structural Design	Wall-flow honeycomb ceramic, cell density 200-300 CPSI	Balances high filtration efficiency with low pressure drop
Filtration Mechanism	Combination of depth filtration and surface filtration	Capture efficiency >95% for nano-scale carbon soot particles
Material System	Cordierite/SiC-based advanced engineering ceramic	Combines high porosity, thermal resistance, and mechanical strength
Regeneration Compatibility	Compatible with catalytic coatings (customizable DOC/SCR coating)	Supports both passive and active regeneration, enhancing system durability

Physicochemical Performance Parameters

Performance Indicator	Unit	Typical Value	Test Standard
Coefficient of Thermal Expansion	×10⁻⁶/K	≤5.0	ASTM E831
Compressive Strength (A-axis)	MPa	≥7.5	ISO 20504
Compressive Strength (B-axis)	MPa	≥1.0	ISO 20504
Apparent Porosity	%	41±5	ASTM C830
Thermal Conductivity	W/(m*K)	23±11	ASTM E1225
Softening Temperature	°C	>1300	ASTM C583
Average Pore Size	μm	13±2	Mercury Intrusion Porosimetry
Thermal Shock Resistance	--	No cracking after 3 cycles of water quenching at 550°C	Enterprise Standard
Maximum Operating Temperature	°C	1200 (short-term)	--

Dimensions & Customization Capabilities

Standard Geometry Range

Shapes: Cylindrical, Oval, Race-track
Cell Density: 200 - 300 CPSI (cells per square inch)
Wall Thickness: 0.23 - 0.3 mm
Outer Diameter Range: 50 - 330 mm
Height Range: 50 - 350 mm
Dimensional Tolerance: ±1.5 mm (can be tightened per request)

Customization Services

We provide tailored solutions based on customer engine parameters, installation space, and performance requirements:

Non-standard dimensions and special cross-sectional shapes
Optimized matching of cell density and wall thickness
Integrated catalytic coating (DOC, SCR, Four-way catalyst) application
Technical support for canning and assembly

Application Benefits

Environmental Benefits

Significantly reduces PM (Particulate Matter) emissions, complying with the strictest global emission regulations
Effectively reduces visible black smoke pollutants, improving air quality

Economic Benefits

Long-life design reduces replacement frequency and maintenance costs
Optimized backpressure design minimizes impact on engine power and fuel economy
Good resistance to sulfur and phosphorus poisoning, enhancing durability under complex fuel conditions

System Advantages

Excellent thermal stability and thermal shock resistance, suitable for drastic temperature changes in diesel engines
High mechanical strength ensures structural integrity under vehicle vibration and impact
Highly compatible with various aftertreatment systems (EGR, SCR, etc.)

Quality Assurance

Raw materials sourced from high-quality suppliers with full traceability
Fully automated extrusion and precision sintering processes ensure product consistency
100% inspection for appearance, dimensions, and key performance (crush strength, porosity)
Validated through bench and vehicle emission testing

Match the Optimal Filtration Solution for Your Engine
Our engineering team provides full-process technical support, from selection analysis and simulation calculations to prototype testing, helping your products meet the latest environmental requirements and enhance market competitiveness. Contact us for more information.