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一、引言耗油量的大小是衡量汽车经济性最重要的指标。国外一般标准规定,汽车空压机的耗油量(实际上是指通过活塞、活塞环进入压缩空气中的窜油量)一般不应超过0.3克/时·千瓦。目前测量润滑油耗量有多种方法,其中简易可行的方法是在排气管口安装一个直径约为100mm的圆筒(图1),筒内装有约厚20～30mm的海绵垫。让其过滤排出气体所带出的润滑油,用比较精密的天平称出过滤前和过滤后海绵的重量,就可以得到空压机的窜油量。但是,在实际测量中,测得的窜油量忽大忽小,有时竟出现负值,影响其方法的正确性。因此,必需通过试验研究解决测量中存在的问
First, the introduction of the size of fuel consumption is the most important measure of the economy indicators. Foreign general standards, automotive air compressor fuel consumption (in fact refers to the piston, piston ring into the compressed air in the amount of oil) should not exceed 0.3 g / h · kW. Currently there are a variety of methods for measuring lubricant consumption. One simple and feasible method is to install a cylinder with a diameter of about 100mm on the exhaust pipe (Figure 1). The cylinder contains a sponge pad about 20-30mm thick. Let the filter out the gas brought by the exhaust gas, with a more sophisticated balance before weighing and filtering the weight of the sponge, you can get air compressor oil channeling. However, in the actual measurement, the measured amount of oil slipped suddenly big and small, sometimes unexpectedly negative, affecting the correctness of the method. Therefore, it is necessary to solve the problem of measurement by experimental research