The D series engines from Shanghai Diesel Engine Co., Ltd. are the top choice for powering large tractors and other agricultural machinery in China. These engines are renowned for their high reliability, low fuel consumption, and rapid load transient response. As one of the most advanced designs among China's mature engines, the D series boasts a torque reserve of 30-40% and offers a power range from 105 to 280 kW, meeting the National III and National IV non-road emission standards.
The D series engines were originally co-developed with Austria's AVL, taking into consideration the specific characteristics of Chinese oil products and user preferences. In 2005, further enhancements were made in collaboration with the Southwest Research Institute (SWRI) of the United States, including the upgrade to four valves. Designed according to the stringent standards of American heavy-duty diesel engines, the D series represents an environmentally friendly power solution that adheres to higher emission standards.
| D Series Engine | Product technical advantages and features |
| Fuel System | ●Electronic control common rail solution: Adopts the third-generation electronic control system of Japan Denso, with a maximum injection pressure of 1800bar; Denso technology DLC coating fuel injector reduces corrosion and wear of the fuel injector; can achieve multiple injections in sequential working conditions, uniform atomization and full combustion. ●Mechanical pump solution: high-quality mechanical pump + external EGR |
| Gas system | ●Using single-point injection gas supply method, two control strategies: pure lean combustion and mixed combustion (lean combustion + equivalent). ●The core gas components such as controller (ECU), sensor, electronic throttle, ignition coil, spark plug, etc. are all internationally renowned brands. |
| Air intake method | ● Two-valve and four-valve products are available, with optimized combustion chambers and swirl ratio airways. Turbochargers are selected according to different working conditions, power and torque requirements to achieve higher intake efficiency, improve combustion efficiency, high power density, torque reserve up to 40%, and fast load transient response. |
| Design Features. | ●Jointly designed with AVL and SWRL, North American heavy-duty diesel engine standards, high-strength cylinder head and engine body design, four-valve structure, 180bar explosion pressure, all parts are designed for 295kw. ●Adopting integrated design, the parts are 20% less than those of general diesel engines, the structure is simple, and the overall size of the whole machine is smaller than that of diesel engines with the same power. |
| Reliability Features | ● Designed according to 295kw heavy-duty diesel engine, with large reliability margin. ● Advanced machining and assembly lines, controlled by MES system. ● SPS system guaranteed by referring to German Volkswagen manufacturing standards, with better product consistency. ● Selecting mature and reliable accessories from international leading brands, as the preferred power for domestic large tractors, it has been selling well for more than 10 years. |
| Supporting adaptability | ●8.3L and 8.8L displacement are optional, two-valve and four-valve are optional, diesel and natural gas engines are optional, and the power range is 105-275KW. ●Without intake heating auxiliary device, the cold start temperature is -15℃. ●According to the assembly configuration and actual operating conditions, the engine and assembly are matched, optimized and customized. ●Multiple configurations of peripheral components such as flywheel, flywheel housing, generator, air compressor, steering pump, etc. are optional, and various structures and forms of PTO and oil pan are optional. |
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