1.3.4 is an independent, control of fuel injection

When the jet is a direct impact on Detroit Diesel on the only point before the fuel injected into the cylinder, the cylinder is determined by the highest peak outbreak of pressure and temperature. High cylinder pressure and temperature can be used to improve fuel economy, but led to an increase NOX. Rather than rely on speed and load when the jet is control, is in fuel consumption and emission rates to achieve the best balance between the key measures.

1.3.5 variable control of the pre-jet

Pre-spray can reduce the particulate emissions, not increase NOX emissions, but also improve the performance of diesel cold start and reduce Cold condition of white smoke emissions, reduce noise and improve low-speed torque. However, pre-jet volume, pre-jet and main jet in the time lag between the different conditions of the request is not the same. So with the pre-variable control of the jet engine performance and emissions very favorable.

1.3.6 minimum ability to control oil

Oil supply system with high pressure jet engine idling and the capacity needed to control small oil contradictions. When the fuel supply system has the ability to pre-spray will make the control of small oil capacity further reduced. Because of construction machinery diesel engine condition is very complex, often idling conditions, and easy to achieve the minimum of EFI diesel fuel control.