At the beginning of the 21st century, high-end power Cummins took root in Xi'an, Shaanxi, and embarked on a strong cooperation story with Chinese heavy-duty truck giant Shaanxi Automobile. When the Shaanxi Automobile Delong F2000 heavy-duty truck equipped with Cummins ISM11 engine emerged, the Chinese heavy-duty truck industry had a true definition of high-end for the first time. This groundbreaking product not only rewrote the industry pattern of weak power and insufficient reliability in domestic heavy-duty trucks, but also embarked on a 20-year innovation journey of Shaanxi Automobile and Cummins.
Shaanxi Automobile Delong F2000 equipped with Xi'an Cummins ISM11 power
With the launch of Shaanxi Automobile's New Pearl series products, the four series of models equipped with Xi'an Cummins power, namely Xiao, Xiang, Qi, and Ji, accurately cover the entire range of heavy-duty trucks weighing 18 to 49 tons. In the new era where the demand for gas vehicles continues to grow and oil to gas conversion has become the industry's benchmark, Shaanxi Automobile has once again launched a breakthrough product, the Longxiang tractor equipped with Xi'an Cummins 15NFE gas engine, which made a stunning debut.
May become the strongest 15-liter gas turbine with the Miller cycle:
As is well known, Cummins' 15-liter gas engine model is 15N, but the newly released Shaanxi Longxiang product is equipped with a 15NFE gas engine. Although there are only two extra letters in the naming, the ones with strong performance are not insignificant.
The all-new 15NFE engine utilizes Miller cycle technology, which is the main reason for its 6% lower gas consumption compared to the previous generation. In addition to applying Miller cycle technology, the Xi'an Cummins 15NFE engine has also improved the design of pistons, combustion chambers, compression ratios, etc. Compared with the previous generation 15N model, the compression ratio is larger. In addition, the Miller cycle will delay the closing of the intake valve, reducing the actual amount of gas involved in compression (reducing the equivalent compression ratio), but maintaining a high expansion ratio, thereby improving the engine's combustion efficiency by 10%. Combined with the all-new Holset low inertia turbocharging, it compensates for the loss of low-speed power, allowing the engine's power to be fully utilized.
The previous 15N engine had a maximum horsepower of 580, but with the 15NFE, it has increased to 630 horsepower. Under the technological reform, the improvement in power is still evident. However, in terms of torque data, this 630 horsepower engine has the same torque as the previous 580 horsepower model, which is 2600N · m, with an output speed of 1000rpm -1400rpm. Can we say that this engine is just a simple increase in horsepower?
The answer is not like that. As we mentioned earlier, the Miller cycle is paired with turbocharging compensation to compensate for the low torque loss. Therefore, the new 15NFE engine is better at low torque levels. At 950rpm, the 15NFE has an output torque 200N · m higher than the old model. Don't underestimate this 200N · m torque, which can be very useful during start-up and acceleration.
The matching gearbox comes from the Eaton Yingdong 12-speed AMT gearbox, which adopts an integrated design with a transmission efficiency of up to 99.8%. It has the advantages of low self-weight and long-maintenance. The strongest oil change cycle is up to 5 years/600000 kilometers, and the refueling volume only needs 7.5L, which can save users a lot of money in maintenance.
As the benchmark of integrated power chain in the industry, the strong combination of Cummins and Eaton will also increase the transmission efficiency of the vehicle and enhance the shifting experience.
The rear axle is matched with the Hande H series high-efficiency single-stage reduction axle, and the vehicle adopts a 6X4 drive form. The tires are matched with 12R22.5 vacuum tires. If we look at it this way, the overall configuration of the Longxiang car still leans towards retail nationwide driving, because the rear axle has a speed ratio of 3.364, the gearbox is in overdrive, and coupled with a high-powered engine, the power experience on national and mountain roads is better than that of a direct transmission with a small speed ratio, and it is also suitable for driving environments with large changes in retail road conditions.
The gas cylinder adopts a large capacity of 1500L. If calculated based on the old engine's 30kg gas consumption per 100km and the new engine's 6% reduction, this capacity of gas cylinder can support a maximum range of 1900km.
The vehicle adopts a lightweight design as a whole, with aluminum alloy wheels on the front wheels and lightweight composite wheels on the rear wheels. In terms of suspension, it adopts front 2 and rear 3 high-strength, lightweight and less biased springs.
Golden Sparkle exterior kit, interior configuration update:
The appearance of Shaanxi Automobile Longxiang has its own unique style. Although it has the same front face contour as the Delong S6000, the grille in the same color and the combination of blue and gold make the whole car look youthful while maintaining a luxurious temperament. Young car enthusiasts should love this appearance style very much.
On the actual shooting model, there is also a Shaanxi Automobile original sparkle appearance kit, which includes spotlights, light frames, flashing lights, SHACMAN brand light boxes, gas horns, side skirts and other exterior decoration accessories. All of them have been certified by the Ministry of Industry and Information Technology of China and are a legitimate tool for adding value to the car. Whether it is an annual inspection or a random inspection, cardholders do not need to worry about the "1087" problem in the later stage. From this, we can also see Shaanxi Automobile's efforts to promote truck culture and provide strong support for truck enthusiasts who modify their appearance.
The headlights are Shaanxi Automobile's iconic tiger eye headlights, with full LED light source and main headlights with lenses, providing excellent night lighting effect.
The driver's seat is a multifunctional airbag shock-absorbing seat with a leather seat surface, equipped with damping adjustment, height adjustment, lumbar support and other functions. Cardholders can also choose ventilation and heating according to their own needs, or upgrade to the more functional Isling seat.
Compared to previous Longxiang products, the newly launched Longxiang tractor has also been updated in terms of interior design, adopting a new workbench shape and new color interior. The angle between the steering wheel and the workbench is more ergonomic, and the sitting and operating posture is natural. During the driving process, truck drivers can relax the pressure on their shoulders and neck as much as possible, which also to some extent avoids the probability of occupational diseases.
The rearview mirror field of Longxiang is also commendable. The large area and large curvature lenses provide both the primary and secondary mirrors with a good field of view, which is definitely a blessing for users of trailer trucks. And the rearview mirror also supports electric adjustment and electric heating functions. In the future, electronic rearview mirror versions will also meet with cardholders.
The car machine large screen is upgraded to a 12.8-inch car-size LCD large screen, which is internally integrated with 360 ° panoramic image, soft switch, tire pressure monitoring, Tianxing car health management system and other functions, supporting app ecology. Users can use Kwai, Doudi Master and other software on the large screen.
One thing that is highly commendable is that Longxiang's large screen integrates air conditioning control while also retaining traditional physical buttons, allowing cardholders to experience technology while ensuring the reliability of basic functions.
The passenger seat comes with a small table, which can be used for eating, filling out receipts, keeping accounts, and more when unfolded.
The widest part of the sleeper in the car has a width of 880mm, and the sleeper pads are designed with almost equal width. The effective width at the end also reaches 800mm, which is better than the sleeper width of many cars.
The storage space inside the car is very abundant, with three drawers under the sleeper and an optional car refrigerator. These drawers are also equipped with damping.
The car roof is equipped with parking air conditioning, and the original vehicle can be equipped with a lithium battery. This air conditioning has a range of 6-7 hours without pressure, which can help cardholders spend a cool summer.
Epilogue:
Shaanxi Automobile Longxiang Heavy Truck has shown great sincerity in product strength. It is the first to use the new Cummins 15NFE gas engine, matched with an efficient and long maintenance power chain, which can save a considerable amount of expenses for cardholders' operations and further promote the development of oil to gas conversion, providing the market with more excellent clean energy transportation products.