At higher engine speeds, however, the vanes would open to reduce airflow resistance and improve fuel consumption.
For the EE20 engine, the injectors were positioned at an almost 90 degree angle to the cylinder and were 40-50 mm shorter than those used in inline four-cylinder diesel engines.
For the Euro 6 EE20 engine, however, injection pressure was increased to 200 MPa.
To enhance torque at engine speeds below 1800 rpm, the nozzle vanes would close to narrow the air path and increase the speed of the air flow.
For the EE20 engine, all five main bearings in the cylinder block had metal matrix composite journals inserted during the cast process for rigidity and due to their similar thermal expansion to the crankshaft.
It is understood that the maximum turbine speed for the IHI turbochargers used in the EE20 engine is 190,000 rpm.
IHI turbocharger The EE20 engines have IHI turbochargers with variable nozzle turbines VNTs.
The Euro 5 and Euro 6 EE20 engines are understood to have ceramic-type glow plugs.