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(一)概述内燃机车的经济性是用其耗油率来表示的。为了正确地评定内燃机车的经济性,必须将它的柴油机耗油量准确地测定出来。耗油量的测定,一般有容积法与重量法两种测量方法。由于燃油的比重与温度有关,因而容积法的测量方法,除测量容积外,还必须准确地测量温度,多了一个温度测量的因素。而重量法只需将重量测定准确,而不存在上述缺点。因此,本测量装置采用了重量法。
(A) Overview The economy of diesel locomotives is expressed by its fuel consumption rate. In order to properly assess the economy of a diesel locomotive, its diesel fuel consumption must be accurately measured. Determination of fuel consumption, the volume method and the weight method are generally two kinds of measurement methods. As the proportion of fuel and temperature, so volumetric method of measurement, in addition to measuring the volume, but also must accurately measure the temperature, an additional factor in temperature measurement. However, the gravimetric method only needs to measure the weight accurately without the above disadvantages. Therefore, this measuring device uses a weight method.