15.93L! 560ps! China’s largest displacement and highest horsepower hydrogen-burning engine Yuchai YCK16H successfully ignited

On June 30, 2022, Yuchai YCK16H hydrogen-burning engine was successfully ignited in Yulin, Guangxi. This engine has a displacement of 15.93 liters and a maximum horsepower of 560 horsepower. It is currently the hydrogen-burning engine with the largest displacement and the largest horsepower in China. The successful ignition of Yuchai YCK16H marks another solid step for Yuchai on the zero-carbon energy power system track.

Li Hanyang, Secretary of the Party Committee and Chairman of Yuchai Group, ignited the YCK16H. He said that in recent years, the field of new energy has developed very rapidly. As a manufacturer of traditional power, Yuchai’s strategy is to actively embrace new energy, break through new energy, and use jade Chai’s responsibility and responsibility to support the country’s “dual carbon” strategic goal. The successful ignition of the engine today is a gift for the party’s birthday and the party’s 20th National Congress.

The heavy-duty hydrogen-burning engine YCK16H was successfully ignited

Yuchai leads the zero-carbon energy power system track

In December 2021, Yuchai successfully ignited China’s first hydrogen-burning engine YCK05H for urban bus, municipal, sanitation, logistics and distribution fields, driving China’s internal combustion engine industry to enter the zero-carbon energy power system track, and also opening up my country’s commercial vehicles The curtain on the development of hydrogen-burning engines.

After completing the development of the light-duty hydrogen-fueled engine platform, the YCK16H heavy-duty direct-injection hydrogen engine was launched this time, making Yuchai the only product in the domestic hydrogen energy field that covers light-duty and heavy-duty hydrogen internal combustion engines and a professional power system for fuel cell systems. supplier.

The YCK16H ignited this time adopts advanced fuel high-pressure common rail, high-pressure in-cylinder direct injection technology and dual-flow supercharging technology, which can achieve homogeneous combustion or stratified combustion in the cylinder according to requirements, with stronger power and higher thermal efficiency. , better stability. The platform has high adaptability to fuel purity, and can be adapted to fuels prepared by various methods such as gray hydrogen, green hydrogen, and methanol on-line hydrogen production. According to user needs and the basic conditions of fuel production, storage, and transportation, the fuel supply can be freely combined. , is a highly adaptable, flexible and controllable zero-carbon/low-carbon power solution. In order to solve the problem of the relatively small power per liter of the hydrogen-burning engine, Yuchai chose the YC16H platform, which has higher horsepower, but is smaller and lighter than similar products, and can be widely used in heavy commercial vehicles such as 49T tractors and distributed products. energy and other scenarios.

Stronger reliability and adaptability, laying a technical foundation for building a zero-carbon emission internal combustion engine

Different from other product platforms, due to the application of various alternative fuels, higher requirements for engine reliability and adaptability are put forward.

◉YCK16H adopts the self-developed intelligent control system and high-efficiency air management system, which can realize two modes of equivalence ratio combustion and lean combustion, and can adjust the injected fuel pressure and intake air volume according to different fuels, and effectively play the role of different fuels;

◉YCK16H applies high-reliability fuel injection system technology, electric drive closed recirculation technology, and advanced exhaust gas recirculation technology to solve problems such as difficulty in ignition and unstable combustion of ammonia internal combustion engines;

◉YCK16H applies intelligent variable control technology. Without changing the main body of the engine, the fuel system and intelligent control software can be adjusted to convert different fuels, reducing the development cost of OEMs and better meeting customer needs.

The application of ammonia fuel and methanol is also one of the highlights of this engine platform. Compared with hydrogen, ammonia fuel and methanol are cheaper to prepare, easier to store, widely used, and have little impact on the environment. Based on the above advantages, ammonia internal combustion engines and methanol internal combustion engines have relatively broad development prospects. The development of YCK16H provides a good technical platform for the application of ammonia or methanol single fuel, ammonia-hydrogen mixed fuel application, and diesel and methanol mixed fuel application. Emissions internal combustion engines lay the technical foundation.

It is reported that the natural gas engine YCK15N developed on this platform has completed the bench test and vehicle road test, and is expected to be put into mass production by the end of 2022. The verification results show that the YCK15N has higher reliability, the number of low-cycle fatigue cycles of the cylinder head is increased by 2.35 times, and the B10 reaches 1 million kilometers. The industry’s first patented anti-icing technology for the EGR system and crankcase system can still operate normally at minus 40 ℃; economical Better performance, the industry’s first TWC (three-way catalytic converter) + ASC (ammonia catalytic converter) + carbon removal technology, the endurance mileage is doubled, the gas consumption is lower, the minimum specific gas consumption is more than 5% lower than similar products, and the torque ratio Similar products are bigger. This product will be widely used in 6X4 trunk line logistics high-end tractors, standard-load composite tractors in mountainous or plateau areas.