有些维修单位的汽车修理工认为:“EQ140—Ⅰ型汽车的曲轴箱通风单向阀作用不大,可有可无。”这是错误的。曲轴箱通风单向阀不但不是可有可无,而且对它的维护保养不容忽视。 曲轴箱通风单向阀的作用:曲轴箱内的废气从气门室边盖经单向阀被进气管的吸力强制吸入气缸内,新鲜空气从前气门罩盖上的小空气滤清器进入曲轴箱,保持机油清洁、防止机油稀释变质。 当汽车行驶约12000km后,保养时应检查曲轴箱 Some repair mechanics say: “The crankcase ventilation check valve on the EQ140-I has little or no effect.” This is a mistake. Crankcase ventilation check valve is not only not dispensable, but also its maintenance can not be ignored. Crankcase ventilation check valve role: the crankcase exhaust gas from the valve cover side through the check valve is suction into the cylinder suction force, the fresh air from the front valve cover small air filter into the crankcase, Keep the oil clean to prevent oil dilution deterioration. When the car is driving about 12000km, check the crankcase during maintenance