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小型柴油机检测中,机械式功率油耗仪使用较多。为提高其检测精度和质量,应注意以下几个问题。 1.使用的秒表、弹簧秤要经过计量部门校准 2.检测时,保持发动机处于正常工作温度和额定转速状态 (1)发动机温度过低时,应让其空负荷运转一段时间,使温度上升到正常工作温度(80～95℃);如温度过高,应让发动机低速运转或停机冷却至正常温度。机温过低过高所测得的功率油耗都不能真实反映该机
Small diesel engine testing, the use of mechanical power fuel consumption meter more. To improve its detection accuracy and quality, should pay attention to the following questions. 1. The stopwatch and spring balance to be used are calibrated by the metrology department. 2. During the test, keep the engine at the normal operating temperature and rated speed. (1) When the engine temperature is too low, allow it to run for a while at no load and make the temperature rise to normal Operating temperature (80 ~ 95 ℃); If the temperature is too high, let the engine run at low speed or down to cool down to normal temperature. Machine temperature is too low too high measured power consumption can not truly reflect the aircraft