西港HPDI系统在不损失性能、效率的同时,保持了原有的压缩比、更少的排放和更经济的燃油性,经济效益和减排效益都获得极大提升。由于LNG具有较好的清洁性和经济性,在交通领域得到广泛应用。LNG在我国交通运输领域的规模应用可以追溯到2008年,首先被应用在公交车上,随后在重卡领域迅速发展。不过,随着LNG应用领域的扩大,其动力性能不足的问题日渐凸显。主要体现在车辆低速重载启动或者爬坡时,发动机转矩不足,车辆动力性跟不上,导致车辆无法启动或者爬坡行驶缓慢 Westport HPDI system has not only lost its performance and efficiency, but also maintained the original compression ratio, less emission and more economical fuel economy, and the economic benefits and emission reduction benefits have been greatly enhanced. Because of its good cleanliness and economy, LNG has been widely used in the transportation field. The scale of application of LNG in China’s transportation field can be traced back to 2008, first being applied to buses and then rapidly developing in the field of heavy trucks. However, with the expansion of LNG applications, the issue of insufficient power performance has become increasingly prominent. Mainly reflected in the vehicle low speed heavy load start or climb, the engine torque is insufficient, the vehicle power can not keep up, resulting in the vehicle can not start or climbing slow