Charge Air Coolers

High-Performance Charge Air Coolers for Marine and Industrial Engines

At Petromarsh, we design and manufacture advanced charge air coolers—also known as scavenge air intercoolers—that sit between the turbocharger and the engine’s scavenge air inlet manifold. These coolers play a critical role in reducing the air inlet temperature, increasing air density, and significantly improving engine efficiency and performance.

Why Charge Air Cooling is Essential

Turbocharged diesel engines produce large volumes of compressed air that can exceed 200°C. Before entering the scavenge manifold, this air must be cooled to around 45°C. Proper charge air cooling ensures:

• Higher thermal efficiency

• Reduced fuel consumption

• Lower emissions

• Extended engine life

• Stable exhaust temperatures
  
  

Petromarsh air coolers are engineered for:

Exceptional thermal performance
Minimal pressure drop
Robust durability under high-velocity airflows

We offer units cooled by seawater or freshwater, constructed using premium-grade materials to deliver long service life and superior corrosion resistance.

The Cost of Neglecting Charge Air Coolers

Leaking or damaged charge air coolers can lead to:

• Engine power loss
  
  

• Increased fuel costs
  
  

• Excessive NOx emissions
  
  

• Accelerated engine wear and overheating
  
  

Maintaining your charge air cooler in peak condition is vital for any turbocharged engine’s efficiency and reliability.

Flexible and Budget-Conscious Solutions

At Petromarsh, we understand the importance of balancing performance with cost-effectiveness. Our tailored solutions include:

• Carbon steel tube plates as a budget-friendly alternative to naval brass (when applicable)
  
  

• Refurbishment and professional cleaning services
  
  

• Reconditioned part reuse upon request
  
  

• Scrappage allowances to reduce the cost of replacement units
  
  

Engineered for Peak Performance

We offer a wide range of fin configurations to ensure our coolers match or outperform OEM units. If your current cooler isn’t delivering optimal results, we can design and manufacture a higher-efficiency replacement with:

• Improved heat transfer
  
  

• Lower pressure drop
  
  

By sourcing raw materials in bulk from leading European suppliers, we maintain full control over quality and pricing. Every unit undergoes strict quality control, with full material traceability and multi-stage inspection throughout production.

NOx Compliance and Certification Support

The condition of your charge air cooler directly impacts NOx emissions compliance. To meet modern environmental standards, our coolers are:

• Designed using proprietary fin types, independently tested and validated
  
  

• Integrated into our thermal modeling software to ensure compliance with IMO NOx regulations
  
  

• Supported with full technical documentation and class society approvals on request
  
  

We work closely with all major classification societies to provide the certifications you need.

Wide Compatibility and Full Support

Petromarsh supplies and services charge air coolers for a wide range of engine models and cooler brands, including:

Supported Engine Brands:
Wärtsilä, Sulzer, MAN, MAK, Mitsui, Daihatsu, Jenbacher, Caterpillar, Cegielski, Pielstick, Yanmar

Supported Cooler Brands:
Vestas, Astra-Refrigeranti, DongHwa, Doosan, Farad, GEA, Kelvion, Serck, Rumia, WUHU, Suction Gas