Ultra-low noise to reduce noise pollution

SAIC Hongyan heavy vehicle series adopt cursor series engine of European standard. It is designed of top camshaft structure with        compact structure, less number of parts, no drive clearance, thereby can reduce the mechanical noise effectively; four-valve technique, unobstructed intake and exhaust can reduce gas noise effectively; the rear gear system and adjustable gear clearance can reduce the gear rotation noise effectively; the usage of new material and roller rocker also can reduce the friction and metal noise. Besides, the excellent cab tightness of SAIC Hongyan heavy vehicle series can reduce the noise utmost. According to the experimental test, the constant speed indoor noise of Genlyon products is 68+2dB (the domestic standard is 90dB), and the outdoor noise is significantly 3-5 decibels lower compared with similar products. The advanced noise-reduction techniques generate tangible results in reducing noise pollution.

Minimum emission to reduce exhaust pollution

Engine exhaust emissions mainly include two substances of NOx(Nitrogen oxides) and PM(Particles), and they cannot be removed simultaneously because of the chemical properties of the two. As a result, two main engine emission control methods occur: SCR(Selective catalytic reduction) and EGR( Exhaust gas reclrculation). The two patents as Prediction algorithm of electric control strategy and Dynamic fluid design of mixing cavity of HI-eSCR technique researched and developed independently by Fiat power technique ensure the good performance of HI-e SCR system in emission control. The advantages of HI-e SCR are obvious, by using SCR technique only, the engine structure is compact, light and easy to maintain, and since it is not necessary for exhaust gas recirculation, this makes the engine burn more efficiently, thus can provide with greater power and torque density and lower fuel consumption, thereby present excellent emission performance.

Utmost clean operation for clear water and blue sky

In SAIC Hongyan heavy vehicle family, new Hongyan intelligent environmental protection muck truck also contributed to the environmental protection in urban construction. It was designed of fully enclosed electric top-cover to avoid effectively the occurrence of dust, leakage, scatter and so on during transportation. The one-piece side coaming can prevent the muck stuck in the truck body, tire and tank accessories during loading and unloading cargos to achieve no accumulation of the truck body, thereby more cleaner and more environment-friendly.