Spray-Assisted Intake Manifold Burner

Reliable cold-start preheating

Features boosted fuel dispersion for reliable fuel delivery and combustion, preventing blow-out at high airflow and ensuring stable intake preheating for heavy diesel engines.

Tong, Liang · Jianli, Liu · Mo, Haoyang · Lee, Chiafon F. · Wang, Ziman · Li, Zhishuang · Mingchen, Cong

International Journal of Heat and Fluid Flow 2025

Specifications

Optimal airflow velocity

{'zh': '6–7', 'en': '6–7'} m/s

Airflow velocity limiting flame growth

{'zh': '9', 'en': '9'} m/s

Advantages

Enhanced fuel dispersion

Boosted fuel dispersion improves atomization, leading to more complete combustion and avoiding local over-rich or lean mixtures.

Resists blow-out at high airflow

Optimized fuel supply and intake parameters help maintain flame stability under high airflow, though above 9 m/s risks remain.

Optimal preheating window identified

Best preheating performance occurs at airflow velocity 6–7 m/s, providing a clear target for engine matching.

Applications

• Diesel engine cold-start assist：Replaces conventional burners to overcome unreliable fuel delivery and insufficient combustion during cold start.
• Intake air preheating for IC engines：Provides efficient and stable intake air preheating, enabling engines to reach operating temperature quickly in cold conditions.