• Advanced design and reliable performance
Cylinder body: Made of high-strength alloy cast iron, with good rigidity, low vibration and low noise.
Cylinder head: Four-valve design per cylinder, optimized air/fuel mixing ratio, combustion and emissions; two cylinders and one head, easy maintenance.
Camshaft: The large-diameter camshaft can withstand higher loads, the new design can control valve and injection timing, and the optimized cam profile can reduce impact force and improve reliability and durability.
Crankshaft: An integral crankshaft made of high-strength forged steel. The induction quenching process of fillets and journals can ensure higher fatigue strength of the crankshaft.
Piston: Using aluminum alloy casting technology, the ω-shaped head and barrel-shaped skirt design can compensate for thermal expansion and contraction to ensure good fit.
Lubrication system: All moving parts are forced lubrication; the large-capacity gear pump provides pressure lubricating oil to lubricate the bearings and cool the pistons; the oil cooler and composite filter maintain good oil condition.
Fuel system:
CumminsThe patented PT fuel system optimizes combustion and provides surging power; the STC distributed timing system ensures good combustion in all working conditions; the low-pressure fuel supply system is equipped with a one-way fuel circuit, which is reliable.
Cooling system: forced water cooling by centrifugal water pump, large flow water channel design, good cooling effect; spin-on water filter and DCA additive can prevent rust and cavitation, control the acidity of the coolant and remove impurities.
Intake and exhaust system: The efficient Holset exhaust gas supercharger further improves combustion; the pressure-type pulse exhaust pipe can make full use of exhaust gas energy and improve
Engine efficiency; air-to-air intercooling technology ensures good fuel economy and emissions.
• Mature products, famous all over the world
Wide application: Since Cummins entered China in 1975, N series engines have been widely used in engineering machinery, heavy-duty vehicles, power generation, ship power and other fields; it has formed strategic partners with important customers.
High reputation: As one of the main models of the Cummins family, the N series engines have won high recognition from customers in various fields for their power, ultra-low fuel consumption, high reliability and low maintenance costs.
Technology upgrades: The BCIII design of the large camshaft, air-to-air intercooling, slow starting and other technologies have further improved the engine's reliability, power, fuel economy and emissions.
