JAC Gehrfa launched the first domestic 20-block heavy truck 2011 Shanghai Auto Show debut
Jianghuai Gefa Heavy Trucks Co., Ltd. took heavy-duty products to a high-profile debut at the 2011 Shanghai Auto Show. China's first 20-speed 6×4 tractor was even more shocking and showed the opportunity to the outside world with its unique charm. The person in charge of the JAC Gehlfa heavy truck said that following the launch of a lightweight product with a weight of 7.67 tons, JAC Gehrfa has once again demonstrated the true nature of heavy trucks and fulfilled the user-oriented commitment: to continue to use high-efficiency, fuel-efficient heavy truck products for users to profit , reduce operating costs.
In 2011 Shanghai Auto Show, in addition to the 20-speed 6×4 tractor, the JAC heavy truck also released an 8×4 medium-duty truck in the same period. Both of these products have achieved national IV emission standards and light weight of some components. The requirements conformed to the market's demand for low-emission, high-efficiency heavy-duty truck products and demonstrated the comprehensive strength of JAC's heavy trucks in technical reserves and product matching.
JAC Geerfa 20-speed 6×4 tractor adopts the Fast 20JS200 type transmission. Its main and auxiliary transmissions adopt the double intermediate shaft structure. The gears adopt the fine and high teeth, and the overlapping coefficient ε>2. The front sub-tank, main box and rear sub-tank combination design are adopted, and the differential gear and the rear sub-tank are driven. The sub-tank uses the enhanced locking pin synchronizer to improve the reliability of the whole vehicle. In addition, the speed ratio is extremely low, which significantly increases fuel economy under various operating conditions and road conditions. At the same time, the MF10 engine of the IWC is adopted to meet the national IV emission standards. It has the function of braking in the engine cylinder and is more efficient and reliable than the exhaust gas-assisted braking. Electro-hydraulic fuel system for higher fuel efficiency and lower emissions.
The adoption of a 20-speed transmission can reach the economical speed faster and reduce overall fuel consumption by 2%-3%. For high-availability heavy-duty trucks, it is undoubtedly a significant savings in transportation costs. JAC Gehrfa not only excels in fuel, but also has a 20-speed transmission that reduces the transmission ratio between gears and makes the shifter smoother. It hardly feels a sense of frustration and improves driving comfort.
Multi-gear heavy trucks are another way to achieve high-end in China's heavy-duty trucks due to their good fuel economy and driving comfort. Experts in the industry believe that the development of transmissions in the direction of multiple gears will be an inevitable trend; the current mainstream transmissions of heavy trucks are still in the 12th gear, and some have reached the 16th gear. JAC heavy trucks apply the 20-speed transmission to the tractor is the first case in the country. . With today's high oil prices and huge transportation pressures, when external factors are not transferred by people's will, the heavy-duty truck industry should tap more potential benefits for the transport industry and balance the various interests in transportation with actual technological changes.
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