一、前言众所周知,汽化器式汽油机的空燃比随空气温度和燃油温度而变化。特别是当汽化器的燃油温度上升到50℃以上时,浮子室内的燃油蒸发,燃油通路里的燃油蒸汽泡变得多起来,从而防碍了燃油流量的正确调节,致使发动机运转不稳,有害气体成分增加。关于上述现象虽有一些人研究过,并对其梗概亦基本清楚,但尚缺乏通过具体实验加以论证的例子,故还没有解除上述不良现象。因此,本文针对汽化器的燃油温度实验研究了从常温上升到80℃时的燃油流动情况,其目的是为了有助于今后对排气采取措施。 First, the preamble As we all know, carburetor gasoline-air-fuel ratio varies with air temperature and fuel temperature. Especially when the carburetor’s fuel temperature rises above 50 ° C, the fuel in the float chamber evaporates and the fuel vapor bubbles in the fuel passages become more numerous, hampering the proper regulation of the fuel flow, causing the engine to run erratically, Ingredients increase. Although some of the above studies have been studied and their generalizations are basically clear, there are still no examples that have been substantiated through concrete experiments. Therefore, the above-mentioned problems have not been solved yet. Therefore, in this paper, the fuel flow in carburetor is experimentally studied when the temperature rises from room temperature to 80 ℃. The purpose of this paper is to help the exhaust gas to take measures in the future.