Weichai Power WP15 Hydrogen Internal Combustion Engine Achieves China 6 Emissions Certification

Hydrogen engine delivers high efficiency with minimal emissions.
Useful Tags/Keywords
Hydrogen & Fuel Cell Technology, Powertrain & Propulsion Systems, Commercial Vehicles, Weichai Power Co Ltd, China, Government Regulations
Article Body

Advancing hydrogen-powered commercial vehicle technology, the Weichai Power WP15 Hydrogen Internal Combustion Engine has successfully completed environmental emissions certification testing under China's China 6 regulations. The certification confirms that the heavy-duty engine has satisfied every key verification requirement specified by the national emissions framework. This milestone demonstrates the company's continued efforts to develop hydrogen-powered propulsion systems that comply with increasingly demanding environmental standards while maintaining the performance expected from heavy-duty commercial applications.

WP15 hydrogen engine meets China 6 certification requirements

Weichai Power Co., Ltd. stated that the WP15 heavy-duty hydrogen internal combustion engine has a displacement of 14.6 liters. Certification testing recorded a maximum output of 600 hp, peak torque of 2,800 N·m, and a maximum brake thermal efficiency of 46.8%. These performance figures demonstrate that hydrogen combustion technology can deliver the power and efficiency required for demanding heavy-duty transport while fully meeting the environmental requirements established in China.

Designed for multiple heavy-duty applications

According to the company, more than 90% of the engine's components are shared with conventional diesel engines, allowing easier integration into existing manufacturing and service ecosystems. The hydrogen engine is intended for deployment across long-haul heavy-duty trucks, mining operations, ports, and power generator sets. The high level of component commonality also supports a smoother transition toward hydrogen-powered commercial vehicles while leveraging proven engine technologies.

Low emissions supported by proprietary combustion technology

Testing across the complete operating range confirmed pollutant emissions remained well below the limits specified under China's national standards while producing nearly zero carbon dioxide output. Weichai Power said its proprietary flexible in-cylinder direct injection technology helps reduce nitrogen oxide emissions. When paired with a simple after-treatment system, the engine is also capable of adapting to stricter environmental regulations that may be introduced in the future.

WP15 Hydrogen Engine Key Specifications

Specification	Details
Engine	WP15 Hydrogen Internal Combustion Engine
Displacement	14.6 liters
Maximum Output	600 hp
Peak Torque	2,800 N·m
Brake Thermal Efficiency	46.8%
Component Commonality	More than 90% with diesel engines
Primary Applications	Heavy-duty trucks, mining, ports, generator sets

Frequently Asked Questions

What is significant about the Weichai Power WP15 hydrogen engine certification?
The Weichai Power WP15 heavy-duty hydrogen internal combustion engine has successfully completed all environmental emissions certification requirements under China's China 6 regulations. The engine combines a 14.6-liter displacement with 600 hp, 2,800 N·m of peak torque, and 46.8% brake thermal efficiency while producing pollutant emissions below national limits and nearly zero carbon dioxide output. It is designed for heavy-duty transport, mining, ports, and power generation applications using hydrogen fuel.