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3.4 EGR(废气再循环)系统及其检修上海别克轿车EGR系统采用线性EGR阀,通过PCM控制参与再循环的废气流量,以达到降低排气中NO_x的含量。EGR阀在车上的安装位署如图81所示,线性EGR阀的结构如图82所示,主要由电磁阀(绕线
3.4 EGR (Exhaust Gas Recirculation) System and Overhaul The Shanghai Buick Sediment EGR system uses a linear EGR valve to control the amount of exhaust gas recirculated through the PCM to reduce the NO_x content in the exhaust gas. The installation of EGR valve in the car is shown in Figure 81. The structure of the linear EGR valve is shown in Figure 82. The structure of the linear EGR valve is mainly composed of a solenoid valve