进气噪声对内燃机整机噪声的影响  

Influence of Inlet Air Noise on Engine Noise

作　　者：毛善勇[1] 陈志军[2] 张云[3] 

机构地区：[1]镇江船艇学院维修教研室,镇江212003 [2]江铃股份有限公司产品开发技术中心,南昌330001 [3]江苏大学研究生处,镇江212013

出　　处：《拖拉机与农用运输车》2005年第4期35-36,共2页Tractor & Farm Transporter

摘　　要：以某460内燃机为例,用声压级和声功率级测试的方法,得出内燃机在多种工况下的声压云图,分析比较了内燃机有进气噪声和没有进气噪声时的整机噪声,结果表明,对于增压高速内燃机,进气噪声对内燃机整机声功率级有显著的影响。In this paper, taking a 460 engine as an example, a comparison between a engine with inlet noise and that without inlet noise had been carried out by using acoustic pressure tests. From the results, we know that the inlet noise is a great influence factor to the engine noise especially for that of supercharged, and with high speed. The result is important while to reduce the engine noise .

关 键 词：汽车 进气噪声 内燃机 整机噪声 声压级 声功率级 

分 类 号：TK407[动力工程及工程热物理—动力机械及工程]