Honda wants more turbo engines

摘要

Honda is working on a small-displacement turbocharged engine based on its 1.5-litre gasoline direct-injection unit, The firm has not been following the downsizing trend but pressure to reduce fuel consumption is changing that. The company has so far relied on variable valvetrains and mild hybrid systems to make its small gasoline engines more efficient but this may not be enough to meet CO_2 targets. Akiyuki Yonekawa, Honda's chief engineer for R&D, said: "By adopting side direct injection we can use 28mm intake valves and 25mm exhaust valves. This combustion chamber specification has high output potential."