Cummins’ “zero carbon goal” helps accelerate “double carbon”

Stephen Saxby, Vice President of Cummins and Chief Technology Officer of China, said: “As a provider of diversified power, the application market we face is very complex and spans a long time. Application scenarios bring greater technical challenges, but Cummins has always implemented its zero-carbon commitment. We are well aware of customer needs, and under the guidance of the 'zero carbon goal' strategy, we apply existing technologies and new technologies to products to meet different needs. application needs, assisting the industry's energy transformation, and promoting the realization of carbon peak and carbon neutrality goals. "

Aiming at the zero-carbon goal and targeting multi-scenario applications, all Cummins series at the event were low-carbon and zero-carbon. Carbon power solutions are all on display.

After more than 100 years of continuous iteration and upgrading, Cummins diesel power classic products have emerged one after another, and customized power solutions have been developed for different markets, application models and work scenarios around the world. In China, Cummins has been deeply involved in the market for nearly 50 years, and its products cover light, medium and heavy-duty engine platforms.

Especially in the past 10 years, we have continuously introduced new products based on the needs of different application markets in China, and applied Cummins' most advanced technology to ensure that the engine can continuously improve engine efficiency while meeting emission regulations. The new 15L diesel engine, which debuted in China last year, has once again defined the standard for heavy-duty engines. It has a maximum power of 680 horsepower and leads the industry in mass production with a thermal efficiency of 48%.

In addition, Cummins plans to launch a new generation of new products that meet Stage 4 fuel consumption and National VI emission regulations in 2023, and will launch the next generation of more competitive heavy-duty platform upgrades, including Development of diesel, natural gas and hydrogen internal combustion engines.

At the event, Cummins’ new generation of off-road National IV powertrain was unveiled. Cummins National IV Power fully optimizes product features and achieves a higher level of cost reduction and revenue increase in terms of automation, intelligence and digitalization through in-depth links with OEMs. Through the optimization of the intake and exhaust system, the optimization of the combustion system, and the integration optimization with the hydraulic systems of different equipment, the operating efficiency is significantly improved in different working conditions and application scenarios.

　National VI Natural Gas Clean Power

As a kind of clean energy, natural gas is an important starting point for "carbon emission reduction". For the Chinese market, Cummins has tailor-made new National VI natural gas engine products, including 15N, 12N, and 6.7N. Among them, the 6.7N natural gas engine makes its debut. This product is smaller in size and lighter in weight, but its power and torque performance are almost comparable to diesel engines of the same displacement, with a power of 190-280 horsepower and a maximum torque of 1,100 Nm.

The newly launched 6.7N natural gas engine will be mainly used in the fields of medium trucks, buses and special vehicles in China, India and European markets. In addition to lightweight design, there are more than 100 natural gas engine parts and key system innovations, which greatly improve the reliability of natural gas engines under extreme working conditions; the high-precision gas injection system ensures precise control of the air-fuel ratio, improving engine economy and emission performance. .

　Engine platform suitable for multiple fuels

At the same time, we focus on future ultra-low emission standards. Cummins also took the lead this year to launch an engine platform suitable for multiple fuels. With most common parts, it can use a variety of low-carbon, zero-carbon sources such as biodiesel, hydrogenated vegetable oil (HVO), renewable natural gas and hydrogen. Carbon fuel provides users with a lower-cost decarbonization technology path. The thermal efficiency of the diesel engine of this platform can reach 48-50%, and the thermal efficiency of the gas engine can also reach 43-45%.

As an important product of Cummins multi-fuel engine platform, hydrogen internal combustion engines can use green hydrogen zero-carbon fuel, opening up new technical ways for energy conservation and emission reduction. At the event, Cummins 15L hydrogen internal combustion engine also made a wonderful appearance.

Hydrogen has unique physical and chemical properties, such as wide flammability limits and short ignition delay time. How to maximize thermal efficiency and power has always been the focus of research and development of hydrogen internal combustion engines. Cummins 15H hydrogen internal combustion engine adopts direct injection and lean combustion. The basic engine has an explosion pressure capacity of up to 250bar, achieving a maximum BMEP of 24bar, a maximum output power of 550 horsepower, a maximum torque of 2600 Nm, and a design thermal efficiency BTE of up to 44%. The thermal efficiency and power are significant. promote.

The 15H hydrogen engine uses a flexible overhead cam system to improve the cooling system and reduce frictional resistance, effectively avoiding performance degradation during the process of converting diesel or natural gas engine fuel to hydrogen fuel. Limitation and efficiency loss; at the same time, the engine adopts an industry-leading combustion chamber design and a pent roof-based tumble combustion system, which can better fuel mixing, gas flow and turbulence generation, boosting hydrogen productionBurns quickly. Relying on advanced in-cylinder direct injection technology and 40bar injection pressure, it achieves a perfect balance between hydrogen energy supply efficiency and in-cylinder mixing optimization, maximizing efficiency.

At the same time as the 15H hydrogen internal combustion engine, a zero-carbon heavy-duty concept truck with a hydrogen internal combustion engine customized for the Chinese market was unveiled. The vehicle is equipped with a Cummins 15L hydrogen internal combustion engine and has 10 70Mpa hydrogen storage tanks integrated into the chassis of the vehicle, which can store about 53 kilograms of hydrogen. Auxiliary hydrogen storage tanks can also be installed as needed, with a potential cruising range of up to 800 kilometers (based on the amount of hydrogen stored). 80 kg (calculated), meeting the needs of heavy-duty long-distance high-speed logistics and heavy-duty intercity logistics.

Hydrogen energy industry chain "production, storage and application"

As one of the most promising clean energy sources, Hydrogen energy provides new opportunities for sustainable development in various industries. In the field of hydrogen energy applications, Cummins fuel cell technology can provide power for a variety of application scenarios, including buses, trucks, rail transit, ships and power generation. The forward-looking high-power fuel cell HD240 unveiled this time has a rated power of over 200kW. On the basis of inheriting the high stability and reliability of Cummins products, the product structure and control have been further optimized. It has high power density and excellent cold start performance. It is suitable for trunk logistics, It provides an ideal zero-carbon clean power solution for long-distance heavy-duty applications.

At the same time, Cummins continues to explore the low-carbonization of energy. Its proton exchange membrane electrolysis water technology can be applied to various scenarios such as industrial manufacturing, chemical smelting, and renewable energy comprehensive solutions to help the industry realize The long-term goal of green decarbonization. At the end of 2021, Cummins and Sinopec Capital Enze Fund jointly invested in a 50:50 joint venture and established a joint venture in Foshan to carry out localized R&D, production and sales of the leading proton exchange membrane (PEM) water electrolysis hydrogen production technology in China. Water electrolysis technology plus renewable energy hydrogen production technology promotes the development of green hydrogen production solutions.

The New Energy Power China Headquarters and New Energy R&D Center located in Shanghai cover electrolysis water hydrogen production equipment stacks, fuel cell engines and their core components, high-pressure hydrogen storage bottle systems and other businesses The second phase of the Cummins East Asia R&D Center in Wuhan is also equipped with a hydrogen power building and will be put into use soon. Drawing on more than 40 years of localization experience of Cummins' traditional business in China, Cummins New Energy will join hands with the upstream and downstream industries to jointly drive the prosperity and development of China's hydrogen energy and fuel cell industries.

　Multiple powertrain solutions

Deeply integrated value partner

Strong power performance, low-carbon and environmentally friendly performance are inseparable from the deep integration and system operation of each module of the power system. Cummins helps customers achieve energy conservation and carbon reduction while operating efficiently through product design, R&D and manufacturing of integrated power chains.

The Cummins integrated power chain products (15N natural gas engine + Yingdong AMT + Meritor axle) unveiled at the event give full play to the advantages of deep integration of each module: for local working conditions In line with market demand, the engine combustion control system has been newly optimized to improve combustion efficiency; optimized Yingdong uses AMT transmission control software and selects the best rear axle speed ratio, which has the advantages of lower fuel consumption, higher efficiency, and lower carbon emissions, making it a valuable partner for efficient transportation.

On the road to "zero carbon", Cummins will continue to develop integrated power chain technology, upgrade smart brain control technology, realize deep integrated control of the power chain, and improve cycle efficiency in vehicle operations. ; At the same time, we continue to develop the power chain braking system, integrating engine braking, hydraulic retarder, and braking with AMT shifting to provide customers with a more optimized power chain braking system. In addition, the company will continue to strengthen industry cooperation and collaborative innovation, match appropriate power chain solutions for various types of power and different working conditions, and help achieve the zero-carbon goal.