DAF DPF

DAF Diesel Particulate Filter (DPF) Technical Parameters

パラメータ
Typical Value
説明

Filter Diameter
190‑330 mm
Outer diameter of the DPF ceramic/metal substrate — actual size varies by model and engine configuration.

Filter Length
150‑305 mm
Length of the DPF substrate, related to soot storage capacity and backpressure characteristics.

細胞密度（CPSI）
200 / 300 / 400 / 600
Cells per square inch indicating filtration surface area — higher CPSI increases filtration efficiency but also backpressure.

素材
Cordierite or Silicon Carbide
Common substrate materials used for thermal shock resistance and filtration performance.

動作温度範囲
200‑600 °C
Normal operating range for soot trapping and regeneration; may reach higher during active regeneration.

背圧（クリーン）
2‑10 kPa
Typical pressure drop across a clean DPF — increases with soot load.

背圧（負荷時）
最大25kPa
Parameter used for diagnostic/regeneration triggers; excessive backpressure indicates soot accumulation.

ろ過効率
≥ 95%
Proportion of particulate matter removed from exhaust stream under normal operation.

Regeneration Temperature
~510 °C
Typical DAF automatic regeneration temperature to burn off soot and restore filter efficiency.

排出基準
Euro 6 / EPA17
Common regulatory targets for trucks, ensuring particulate matter limits are met.

重量
20‑30 kg (varies)
Approximate weight depending on size and housing, influencing installation and handling.

Notes for Decision‑Makers
• Cell Density & Backpressure: Higher CPSI values increase filtration surface area but can raise backpressure, affecting engine fuel economy. Balanced selection is key for fleet efficiency.• 素材の選択： Cordierite is common for cost‑effective applications, while silicon carbide offers superior thermal shock resistance for heavy load and high temp duty cycles.• 再生戦略： DAF trucks typically initiate automatic regeneration based on backpressure and temperature readings — ensuring timely filter cleaning preserves engine performance and reduces downtime.