机械效率是指输入功率与输出功率之比的百分率。输入功率是在泵的输入轴上测量出来的功率,其大小与发动机发出的输出功率有一个差值,因为一部分功率已消耗在传动皮带、链条、离合器、变矩器或者液力联轴节上了。如果这些消耗了的功率值已经知道得很精确时,那么,由发动机输出轴上输出功率就可以计算出泵的输入轴上的输入功率。 Mechanical efficiency refers to the ratio of input power to output power. The input power is the power measured on the input shaft of the pump and differs in magnitude from the output power of the engine as a portion of the power has been dissipated in the drive belt, chain, clutch, torque converter, or hydraulic coupling It’s If these consumed power values ​​are known to be accurate then the input power at the input shaft of the pump can be calculated from the output power at the output shaft of the engine.