摘要: |
Global development of hydrogen-fuelled internal combustion engines for trucks and buses has moved on again with the unveiling of the YCK16H 552bhp 16-litre, multi-fuel, six-cylinder unit by Yuchai of Yulin, China. Yuchai, a major supplier of diesel and methane heavy-duty engines, launched China's first hydrogen-fuelled medium-duty engine for city bus, refuse and distribution tasks at the end of last year. Power output of the YCK05H was unstated, but the manufacturer claimed successful application of technologies including high-pressure multiport direct fuel-injection, low-inertia turbocharging and lean-burn combustion. The base diesel engine design was adapted to overcome hydrogen-specific problems including backfiring and 'knock'. |