摘要
抓住影响柴油机燃烧过程的主要因素,通过提高混合气形成质量,采用稀薄均质预混合燃烧方式,控制上止点着火,获得理想放热规律。在4气门135型直喷式试验机上取得了经济性和排放性全面改善的试验效果。文中还介绍了模拟增压试验一不同增压比、气门重叠角、喷油定时及喷孔尺寸一的实验研究情况。结果表明:适当提高增压比和加大气门重叠角,是实现柴油机强化燃烧的重要措施。
By improving forming quality of mixed gas, controlling major factors influencing combustion of diesel engines and adopting lean homogeneous pre-mixing combustion mode, ideal combustion rules are obtained. The performance experiment was conducted in a four-valve, single-cylinder, 135 type DI engine. The results show that enhancing supercharging ratio and increasing valve overlap angle is an important method for the intensified combustion of the DI diesel engine.
出处
《机电设备》
2001年第4期7-11,共5页
Mechanical and Electrical Equipment
基金
中国船舶总公司船舶工业国防科技预研基金资助项目(97J23.1.4③)
关键词
柴油机
强化燃烧
均质预混合
增压比
diesel engine, intensified combustion, homogeneous pre-mixing, supercharging ratio
