Weichai H2 ICE passes China 6 emissions certification

Weichai Power has reported that its WP15 hydrogen direct injection engine for heavy-duty vehicles has passed the full China 6 vehicle emissions certification tests.

According to the engine and power solutions OEM, this is the first H2 internal combustion engine intended for heavy-duty applications to comply with the emissions standard.

WP15 H2 engine features a direct injection system (Photo: Weichai)

Certification was conducted under the complete operating cycle required by China’s national heavy-duty engine emissions standards. The tests covered a range of operating conditions, including cold start, low-speed idling, high-speed full load and transient load changes.

Designed for zero-carbon heavy-duty applications, the WP15 features a direct injection system that uses a spark ignition. The 14.6-liter model produces up to 600 hp and 2,800 Nm of torque, while achieving a thermal efficiency of 46.8%.

The engine has 90% component commonality with conventional engine platforms which should help with reducing production and maintenance costs. The unit also has a high tolerance for hydrogen impurity, which could help to reduce running costs.

Applications include long-haul trucks, mining dump trucks, port equipment and H2 gen sets.