May 30，It is the annual National Science and Technology Workers' Day.。Same day，Yuchai demonstrated the latest scientific and technological achievements.，And launched China's first flexible fuel power platform to achieve commercial operation.，And the first batch of second-generation engines that meet the fuel consumption standards of the fourth stage in China。

Yuchai is the first flexible fuel engine platform to realize commercial operation and the first batch of second-generation engines to meet China's four-stage fuel consumption standards.，It will enable our country to truly achieve low-cost application of zero carbon.、Low carbon fuel high thermal efficiency engine，Push China's internal combustion engine industry into a new stage of development。

To encourage technological innovation.，Yuchai awarded more than 40 million yuan to major scientific and technological projects on the National Science and Technology Workers Day this year.；Since last year，Yuchai's awards for major scientific and technological projects in three years will reach 1.900 million yuan。

01. Launch China's first flexible fuel engine platform for commercial operation

This event，Yuchai Releases China's First Flexible Fuel Engine Platform for Commercial Operation。The platform is based on independent controller development and universal cylinder head design.，Flexibility to match various fuels with only fuel system and software adjustments，At the lowest cost、Make the whole product with the fastest development progress，Meet the personalized needs of customers。

  

Yuchai is developed through flexible fuel engine platform，Realized“Four leads”：

Lead release。2021、China's first commercial vehicle hydrogen engine in 2022、Maximum horsepower hydrogen-fueled engine ignites in Yuchai，Yuchai took the lead in releasing China's first flexible fuel engine platform.，The technology of China's internal combustion engine industry has entered a new stage of development.。

Leading layout。In the country“Double Carbon”In a strategic context，Zero carbon fuel transition is the future of the internal combustion engine。Yuchai is developed through flexible fuel engine platform，Propelling an internal combustion engine from fuel，Expand to hydrogen fuel,And ammonia hydrogen is realize.、Ammonia wood、Methanol, diesel oil, etc.、Development of dual fuel mode internal combustion engine，The development field of the internal combustion engine is expanded.。

Leading technology。From“Hydrogen embrittlement”“Knock”And other technical difficulties.，To high thermal efficiency technology development，Yuchai Promotes Hydrogen Engine to Achieve Effective Thermal Efficiency 44%，Leading in the country。Through the application of ultra-lean combustion technology，Achieve near-zero emission。

Leading demonstration operation。The other day，Successful ignition of China's first hydrogen fuel internal combustion engine power generation system developed by Yuchai，It is the earliest demonstration operation in China.。The power system is composed of hydrogen engine and Yuchai Core Blue Range Extender.，At the same time“Low cost”“Long life”And“Zero emission”The advantages of，It is the most marketable application scenario at present.。

  

The first flexible fuel engine platform in ChinaYCK15NGas engine、YCKThe 15 diesel engine was first introduced in 2023.。

YCK15 、YCK15NThe displacement is 14.8 liters，The diesel version has a maximum horsepower of 700 horsepower.，The maximum horsepower of the gas version is 570 horsepower.，It is the most powerful engine with the same displacement in China.。

The two engines are more reliable.，AmongYCK15NApplication of strong simulation test technology and multi-scene vehicle test of more than 3 million kilometers，Application High Reliability Parts Application，The fatigue life is equivalent to that of diesel engine.；Endurance mileage of aftertreatment system is doubled，The failure rate is 31% lower than that of similar products in the fifth phase of the country%；Lower energy consumption，5% lower than similar products%Above，More torque than similar products，Acceleration performance improvement16%、Improved gradeability 11%。

These two products can be widely used in 6X4 High-end Trunk Logistics Tractor、Standard load composite tractor in mountainous area or plateau area。

02. The first batch of engines meeting the fourth stage fuel consumption regulation standard were unveiled.

From the beginning of the research and development of the sixth national standard，Yuchai is made.SKYNew high-end customization platform， SKYHigh-end power customization platform includes light machineYPlatform，And medium、Heavy dutyS、KThree platform models，Have efficiency、Reliable product features。

In YuchaiSKYBased on high-end power customization platform，Yuchai Continues to Promote High Heat Efficiency、Low fuel consumption、Research and development of ultra-low emission engine，It's outYCS04、YCS06、YCS07、YCK09L、YCK12LAnd other innovative products that meet the fuel consumption standards of the fourth stage.。

Comparatively speaking，High thermal efficiency introduced by Yuchai、Low fuel consumption products，Pay more attention to satisfying customers and high efficiency、Demand for high reliability，Ensure that on the basis of not investing high costs，Meet the requirements of national regulations and standards，And realize customer value.。

Efficient

High thermal efficiency：YuchaiSKYHigh-end customization platform，At present, the maximum thermal efficiency of engine mass production can reach 50%，Specific fuel consumption as low as 169g/kWh，It has the only high thermal efficiency engine with low cost and mass production.。

Efficient customization：Powe assembly machine based on Yuchai、Understanding of the whole vehicle，Yuchai Machine starts from the definition of customer needs，Modular development and engine customization，Develop engines to meet different application scenarios。At the same time，Extreme optimization through the power chain，Innovative technology applications such as intelligent big data function development，Reduce energy consumption of users，Reduce the use cost of the whole life cycle of users。

Reliable

The development is reliable：Support of advanced simulation analysis tools，Engines undergo up to five rounds of upgrades and iterations during the development cycle，Cumulative simulation and validation time of more than 90,000 hours，Each subsystem and component has undergone more than 50,000 hours of bench testing.，And over 6 million kilometers of high temperature.、High and cold、High altitude and other rigorous road test verification。

The technology is reliable：LIVC（Intake valve late closing technology）、Intelligent thermal management etc.，Achieve a comprehensive upgrade of hardware and software，Provide users with more power、More economical、More comfortable、More reliable、Smarter performance experience。

Intelligent and reliable：Intelligent electronic control based on Yuchai、Unmanned driving technology、Research and development of vehicle networking technology by subsidiaries such as Starnet Zhiyun and Yuyi，Yuchai provides users with remote performance monitoring and early warning、Smart maintenance tips、Intelligent diagnosis and other active services，Enabling users in all directions，Increase efficiency and reduce cost。

03. Medium speed engine test platform officially launched

On that day，Yuchai has also launched a newly built marine electric medium-speed engine test platform.，This is Yuchai.“Do it all”Embodiment of the strategic approach，It also marksYuchai Machine has completed the technical preparation for entering the field of medium-speed machine.。

  

The newly built and opened marine electric medium-speed engine test platform covers an area of about 6000 square meters.，Project benchmarking domestic and foreign advanced high-power engine R & D test platform，It is a high-power engine test platform for Yuchai to face the future high standard emission.。The project has built a high-power electric dynamometer.，Will be used to simulate rapid changes in load，Improve the rapid response characteristics of the engine；Newly built multi-fuel supply system、Combustion intake management, etc.，It will fully meet the scenario simulation of multi-fuel engines from extreme cold to high temperature and humidity.；The bench has also built an ultra-high power test capability.，Fully meet the company's needs to expand to medium-speed aircraft and other fields.，Boosting the realization of the company's strategic objectives。