High quality:
The Komatsu diesel engine is a true achievement of our total engine production system-from casting all the way through machining processes using Komatsu-made machine tools to the final steps of assembly.
Proven reliability
The Komatsu diesel engine is matched with our heavy-duty construction equipment to create a powerful combination of unbeatable performance and high durability.
Economical operations:
The Direct injection system and special fuel-minimizing design of Komatsu diesel engines provide maximum economy. Low lubricant consumption is also a remarkable advantage.
Compact design:
Advanced design and an efficient production system make Komatsu diesel engines compact and lightweight, enhancing their versatility.
Low-noise operation:
Ideal designs keep engine noise and vibration to a minimum.
Wider applications:
A wide range of optional equipment offers a variety of applications to meet specific customer requirements.
Low emission engine (EPA Tier 3 and EU Stage 3A emissions certified.):
Komatsu engine meets the emission regulations of North America, Europe, Japan, etc. by employing the advanced technologies. The followings are examples of the technologies.
High-pressure injection system
Fuel is sprayed more finely to prevent increase of NOx and particulate matter by heightening the fuel pressure injected into the cylinder.
Air-cooled aftercooler
Intake air temprature pressurized by the turbocharger is lowered largely by the air-cooled aftercooler having high cooling capacity to prevent increase of NOx caused by high combustion temperature and increase the intake air density for less fuel consumption.
Optimized shape of combustion chamber by use of FCD piston
The shape of the combustion chamber is optimized by employing an FCD piston having high strength and the air flow speed is heightened by improving the shape of the air intake passage. With these technologies, particulate matter is reduced.
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