The OM470 engine is a refrigerant cooled 4-stroke direct injection diesel engine. The engine is equipped with a common rail diesel injection system, cooled and regulated exhaust gas recirculation, and turbocharging with boost pressure control. Single-stage charging is carried out via an exhaust-gas turbocharger. The valve drive has 2 gear-driven overhead camshafts.
The engine has a one-piece cylinder head. The cylinder head contains 2 intake valves and 2 exhaust valves per cylinder. The valves are symmetrical. The symmetrical valve arrangement is optimal for fuel combustion.
|Also called||OM 470|
|Cylinder block alloy||cast iron|
|Fuel system||direct injection|
|Number of cylinders||6|
|Piston stroke, mm||145|
|Cylinder bore, mm||125|
|Power output, hp||326/1700
|Torque output, Nm / rpm||1700-2200/1300|
|Euro standards||Euro 6|
|Weight, kg||956 (dry)|
|Max. engine operating temperature, degrees||110|
|Engine lifespan, thousand km
— official information
Fuel equipment – Common Rail, but with a maximum spray pressure increased to 2700 bar. This is what Daimler calls the X-Pulse. The engines are only in the Euro-6 version, therefore, SCR urea neutralization, EGR recirculation and a regenerable particulate filter are combined here.
The engine has a common rail diesel injection system with increased pressure – the so-called Amplified Pressure Common Rail System (APCRS). This system minimizes the amount of fuel required for combustion. The advantage of this system is the presence of a relatively low pressure both in the rail itself and in the high pressure lines.
Explanation of OM470LA marking
|OM||Heavy Fuel Oil (Diesel) ICE|
|470||Engine type: 6-cylinder in-line.|