1. Reliability

Reliability development in strict accordance with FEV's mechanical development programs

Passed the road adaptability test of about 3 million km (including high-temperature test, alpine-cold test and plateau test) and the rigorous reliability bench test of about 30,000 hours

2. Improved performance

Application of a four-valve structure and Yuchai's patented combustion technology, effectively reducing fuel consumption

Use of a cylinder head with a low swirl ratio, improving charge efficiency and flow coefficient, thus creating favorable conditions for in-cylinder combustion of the engine and improving performance

Use of a piston with a high compression ratio to achieve full fuel mixing in the cylinder, ensuring good combustion efficiency and improving the performance

Low-inertia turbocharger, achieving higher torque at low speed; low inertia and less power consumption, reducing the fuel consumption

Economical fuel consumption mainly occurring in the medium and low speed range, making the engine more suitable for the operating road conditions of buses

3. Comfort

Use of high-precision gears, effectively controlling the gear clearance within a reasonable range and reducing noise

Double balance shaft design, reducing engine vibration, and therefore effectively reducing vehicle vibration and noise

Application of a strengthened structure for such castings as gear chamber and engine block, reducing vibration

Application of pilot injection control, intelligent idle speed control and other electronic control technologies, effectively reducing engine vibration and noise