标志发动机性能好坏的指标很多,主要的有动力性能指标(指功率、扭矩和转速等)、经济性能指标(指燃油和润滑油的消耗等)、以及运转性能指标(指起动性能、噪声和排气品质等)。当然,衡量一台发动机的质量好坏,不能单从性能指标方面来考虑,要从性能、可靠性、耐久性、结构工艺、操纵维修、成本核算等多方面综合地分析评价。 Indicators engine performance is good or bad many indicators, the main power performance indicators (referring to power, torque and speed, etc.), economic performance indicators (referring to fuel and lubricating oil consumption, etc.), as well as operational performance indicators Exhaust quality, etc.). Of course, to measure the quality of an engine can not be considered solely in terms of performance indicators. It is necessary to comprehensively evaluate the performance in terms of performance, reliability, durability, structural workmanship, operation and maintenance, and cost accounting.