曲轴箱强制通风系统构成和发展趋势  

Structure of Blow-by Ventilation System and Its Development Trend

作　　者：王骏 

机构地区：[1]曼胡默尔管理(上海)有限公司,上海201815

出　　处：《柴油机设计与制造》2012年第2期1-8,共8页Design and Manufacture of Diesel Engine

摘　　要：窜气是发动机工作时产生的,为了保护发动机和降低排放,必须采用曲轴箱强制通风系统。介绍了曲轴箱强制通风系统的功能和构成,包括详细介绍了油气分离器、调压阀、安全阀以及回油单向阀。另外简单介绍了曲轴箱强制通风系统的两个发展方向,即高效的油气分离器和集成化的发展方向。Blow-by gas is generated by engine running; and for engine protection and for reducing the emissions of engine, positive crankcase ventilation （PCV） application shall be imperative. This article introduces the function and structure of PCV, including oil separators, pressure regulation valve （PRV）, safety valve and check valve etc. Besides, the development trend of PCV is introduced, including the development of oil separators and their integration.

关 键 词：柴油机 曲轴箱通风 油气分离器 排放 

分 类 号：TK423[动力工程及工程热物理—动力机械及工程]