The new DAF MX 300 engine’s common rail injection system enables pre-injection, post-injection, or a combination of both, as well as high injection pressures of up to 2,500 bar. Finer fuel atomization and numerous other opportunities to maximize combustion and guarantee the lowest emissions, noise, and fuel consumption result from this. Maximum fuel combustion is achieved with notable fuel economy when combined with the SCR system, which also processes emissions.
Reducing the number of components was chosen to improve the DAF MX 300 engine’s dependability because fewer parts mean a lower chance of unit failure. Specifically, the motor’s durability and dependability are increased by improving oil circulation, incorporating low-pressure fuel lines into the injection pump housing, using foam materials to reduce electrical wiring vibrations, reinforcing the crankshaft and large bearing, and much more.
Specifications
| Manufacturer | DAF |
| Also called | MX 300 |
| Configuration | inline turbocharged diesel |
| Number of cylinders | 6 |
| Firing order | 1-5-3-6-2-4 |
| Piston stroke, mm | 162 |
| Cylinder bore, mm | 130 |
| Displacement, cc | 12900 |
| Power output, hp | 410 |
| Compression ratio | 17,7:1 |
| Torque output, Nm / rpm | 2000 |
| Euro standards | Euro 5 |
| Weight (dry) | 1200 kg |
Along with the two special pumps, new and enhanced motor software, sensors, and drives are also crucial. These systems are now even quicker and more accurate, guaranteeing that the fuel, exhaust gas, and air mixture is always injected in the best possible way. This is essential to attaining optimal efficiency and reduced emissions. It should be noted that the most recent engine versions have some improvements that enable you to increase the torque over a fairly wide frequency range and even at low rpm.
Major engine innovations
Fuel injection system:
- injection system with electronic pump (EUP);
- pumping units with integral solenoids to reduce vulnerability.
Injectors:
- SMART with different needle opening pressures.
Injection adjustment:
- fine tuning of multipoint injection.
Intake system:
- turbocharged and air cooled;
- internal cooling.
Intercooler:
- aluminum, single row transverse.
Turbocharger:
- one-stage with controlled non-return valve.
Explanation of DAF MX 300 markings
| MX | 12.9 liter engine family |
| 300 | Engine power, kW – 300 |