WD12 series diesel engine is a new generation of product developed by Weichai Power with the worlds leading technologies and new design concepts, refreshing a number of performance indicators of domestic heavy-duty diesel engines, and it is more fuel-efficient, more powerful, more reliable and safer, with the main economic indicators reaching the world’s leading level.
WD12 diesel engine is an advanced product developed by Weichai Power for the heavy-duty vehicle market, and it is currently only the mature engine with the maximum displacement. Its power covers 336 hp - 480 hp, and compared with the existing products with the same power, its comprehensive fuel consumption is reduced by 10-15% and power is increased by 30%, ensuring the efficient and high-speed running of vehicle, and it is currently the ideal upgrade power for the domestic heavy-duty vehicles.
Technical Advantages of D12 Series Diesel Engine:
More fuel-efficient
——Fuel consumption decreased by 15% under the same load, saving the cost
Large displacement and air input: supported by the special P12 high-pressure fuel pump, fuel injection and atomization is better; supported by the special efficient turbocharger, the air input efficiency is higher; WD12 engine leads to the more adequate combustion and lower fuel consumption.
More powerful
——12L large displacement, torque increased by 30%, more powerful
Large displacement and torque increased by 30% at low speed (1,000r/min) better the acceleration performance of vehicle; Large maximum torque improves the load capacity of vehicle; large torque may be output at 1,200-1,650 rpm to make the vehicle run efficiently in a variety of conditions, greatly improving the operational efficiency and achieve the fast transport at high speeds.
More reliable
——Lower thermal load, longer life of components and decreased maintenance costs
Large displacement, and lower thermal load at the same power
12L displacement and the lowest power per liter compared with similar engines greatly improve the reliability of WD12 diesel engine and extend the lives of crankshaft, connecting rod, bearing bush, etc., as well as delay the oil aging rate, extend the oil change cycle and bring the users the considerable direct benefits.
High-strength body
The body of WD12 diesel engine has been through the comprehensive structural calculations and reliability tests with the overall performance indicators 20% higher than similar products
High-pressure fuel pump driven with flange gears
Flange connections make the advance angle of injection more precise to avoid the worsening of diesel engine performance and emission indicators due to the change of advance angle, reduce the vibration and comprehensively improve the overall reliability.
Water pump arranged at side
The pump is not connected to the fan, reducing the failure rate of components and facilitating the maintenance
Safer
——With the unique Weichai WEVB technology, the braking efficiency is increased by 50%
With WEVB engine braking system, the braking efficiency of vehicle may be increased by 50%, greatly improving the operational safety of vehicle.
With the WEVB assisted braking system, the acting frequency and time of service brake is significantly reduced, relieving the wear of wheel brakes and decreasing the work intensity of driver during the braking process.
Compared with retarders of other types of engine, WEVB assisted braking system has lower costs, fewer modified components and easier maintenance.
Unique premium configuration and structure
In terms of high-pressure fuel pump, starter motor and generator, Germany BOSCH Company signed a strategic cooperation agreement with Weichai to exclusively supply Weichai Power in the field of diesel engine at 126 mm bore.
WD12 rear PTO
WD12 diesel engine has PTO power outlet structure, greatly expanding the supporting scope, and it is ideal for the large-capacity cement mixer.