摘要
随着“国六A”“国六B”的实施,汽车燃油消耗限制的要求更严苛。发动机迫切需要降低油耗以适应油耗限值。在LJ481发动机通过优化缸盖进气道的结构,提高滚流比,降流量系数,提升发动机的经济性。
National laws have increasingly strict requirements on vehicle fuel consumption and emission,the engine urgently needs to reduce fuel consumption to meet the fuel consumption limit.On the basis of LJ481 engine,the cylinder head intake port is optimized to improve the tumble ratio,reduce the flow coefficient and improve the engine economy。
作者
郭彦豆
徐飚
GUO Yandou;XU Biao(Liuzhou Wuling Liuji Power Co.,Ltd.,Liuzhou Guangxi 545005,China)
出处
《装备制造技术》
2021年第12期94-96,104,共4页
Equipment Manufacturing Technology
关键词
计算流体动力学
汽油机进气道
滚流比
流量系数
computational fluid dynamics
gasoline engine intake port
rolling ratio
discharge coefficient
