前言目前,排气净化装置大致可以成五类: 一、通过改善进气系统净化排气的装置; 二、通过改善缸筒内的燃烧净化排气的装置; 三、使排气在排气管內进行再燃烧来净化排气的装置; 四、防止缸筒窜气进入大气的装置; Preface Currently, the exhaust gas purification device can be roughly divided into five categories: First, by improving the intake system to purify the exhaust device; Second, by improving the combustion cylinder purge exhaust purification device; Third, the exhaust in the exhaust pipe Within the device to be burned to purify the exhaust; Fourth, to prevent the cylinder blow-by gas into the atmosphere of the device;