ZD30 Series Engines of Dongfeng Light Engine Co., Ltd.

ZD30 series engine is an advanced engine technology imported from DFLE by Nissan. Adopting the world's advanced design concepts and means, combined with Dongfeng's limited practical experience, the perfect combination of comprehensive indicators such as high power, wide power coverage, low emission, low fuel consumption, low noise and high reliability has been realized.

At present, ZD30 series diesel engines have been developed, which meet the emission requirements of Euro III and Euro IV, and have the potential to upgrade Euro V..

Powerful force

The maximum lifting power can reach 50kW/L, the maximum torque can reach 480n·m, and the power performance is 10% higher than that of domestic similar products.

Four-valve arrangement of overhead double camshaft

The turbocharger (variable cross-section supercharger) with VNT technology is adopted, which improves the low-speed performance and reduces the dynamic response time of the engine.

The intake pipe SCV technology (variable intake vortex) is adopted to effectively solve the contradiction between high speed and low speed and improve the performance of the full speed range;

Good economy

1, low fuel consumption:

Bosch's latest diesel common rail technology is adopted, and the fuel injection technology is as high as 5 times per cycle;

Electronic throttle technology is used to control the theoretical air-fuel ratio, so that in-cylinder combustion is in the best state;

The minimum fuel consumption at full load is 208 g/kW h, which is 3 ~ 5% lower than that of domestic similar products.

2, low fuel consumption

The piston used in the engine adopts the advanced technology of German Mahler Company, and adopts the oil-cooled nozzle and the cooling oil passage built in the piston to forcibly cool the piston, so as to protect the safe operation of the engine.

Built-in cooling channel of piston+oil cooling nozzle+new piston ring+advanced cylinder hole grinding technology have created excellent performance and super reliability of ZD30 engine, and effectively reduced oil consumption.

Good starting performance

It can be easily started at -35℃ by preheating with electric heating in the combustion chamber.

Good reliability

The engine has passed various tests such as cold and hot shock, rotation durability, high oil temperature durability, ultra-high speed durability, rotation water temperature durability, Go-stop durability, water temperature durability, EGR durability, etc. , completed 12000 hours.

The whole vehicle passed the reliability test of 300,000 kilometers in cold, high humidity, plateau and high temperature.

During the road test, the engine did not break down.

Small size, light weight

The cylinder head adopts aluminum alloy lightweight design.

Overall dimensions of the machine

Length × width × height: 773.8× 757.3× 704.8mm.

Weight: 271.5 0.2 (kg)

Good vibration and noise control

Adopting integral main bearing cover structure, precise fuel pre-injection, helical gear and silent chain transmission technology, the noise can reach 80.2dB, which is far lower than that of similar engines in the same industry in China.

If the most advanced technologies such as double balance shaft, double mass flywheel and generator one-way clutch are further equipped, the vibration and noise can be further reduced and the demand of cars for diesel engines can be met.

Environmental protection force

At present, the engine exhaust aftertreatment system adopts DOC+DPF device and electronically controlled water-cooled EGR technology, which meets the national III and IV emission requirements and has the potential to upgrade to Euro V. ..