50% Weichai sets a new benchmark for global diesel engine thermal efficiency

On September 16, Weichai Group released the world’s first commercial diesel engine with a thermal efficiency of over 50%, marking that China’s heavy-duty diesel engine technology has become world-class and has achieved independent controllability, laying the foundation for Weichai’s global presence in the field of internal combustion engines. Lead the way. At the product launch conference, the international authoritative internal combustion engine testing organization German T?V SÜD, and the Chinese internal combustion engine national testing organization China Automotive Technology and Research Center Co., Ltd. issued a certification certificate with a thermal efficiency of 50.26% to Weichai.

What proportion of a kilogram of fuel can be converted into power? This process is usually expressed in terms of energy efficiency, or thermal efficiency. The higher the thermal efficiency, the less fuel consumption, the more significant the effect of energy saving and emission reduction. Huang Zhen, academician of the Chinese Academy of Engineering and vice president of Shanghai Jiaotong University, pointed out that improving thermal efficiency is a very important research direction of internal combustion engines（howo truck spare parts）, and the international internal combustion engine community attaches great importance to it. The current global average thermal efficiency of internal combustion engines is 46%, reaching a thermal efficiency of 50%, which is like the first time in human history that 100 meters run in 10 seconds.

Diesel engines consist of thousands of parts, and the improvement of thermal efficiency is a huge systematic project. As a leader in China’s internal combustion engine industry, Weichai is committed to the continuous improvement of thermal efficiency and has established a dedicated technical team to accelerate the breakthrough of diesel engine thermal efficiency. It has created five proprietary technologies that have successively solved efficient combustion, low heat transfer, and high reliability. A series of world-class problems such as performance, low friction loss, low pollutant emission, and intelligent control. Guo Shenggang, deputy dean of Weichai Power Engine Research Institute, told reporters: "We have a scientific research team with the spirit of'madman'. With the spirit of scientific innovation, we will not let go of every technical difficulty that can be unearthed. The accumulation of the diesel engine body’s thermal efficiency has exceeded 50%."

The internal combustion engine industry is the basic industry of the national economy, and the technical level of internal combustion engines has a profound impact on the sustainable and high-quality development of related industries and reflects the strength of the equipment manufacturing industry. Weichai has been deeply involved in the internal combustion engine（howo truck engine parts ）industry for more than 70 years and has deep technical background and experience accumulation in the manufacturing and research and development of diesel engines.

Breakthroughs in technological innovation are inseparable from continuous technological investment. It is understood that Tan Xuguang, chairman of Weichai Group, has never blinked in research and development, and has invested 30 billion yuan in engine technology research and development for 10 consecutive years, and has firmly grasped the powertrain of heavy commercial vehicles, hydraulic powertrain of construction machinery, and large-scale Agricultural equipment CVT powertrain, large mining truck power, new energy power and other core technologies.

In the research and development process, Weichai leveraged the synergy advantage of the entire industry chain and cooperated with the global auto parts supplier Bosch Group to jointly overcome this difficulty. Volkmar Dunner, Chairman and CEO of Bosch Group, said that Weichai has successfully developed a new type of heavy-duty diesel engine with 50% thermal efficiency. This is an achievement of great significance and a historic historical development in the history of diesel engines. The breakthrough has set a new benchmark for the thermal efficiency of global diesel engines.