关键词: 流量, 温度, 效率, 液压泵

Abstract: A simplified mathematical model according to the relation of performance parameters of hydraulic pump and temperature is established. Meanwhile, the characteristic curve is made out and compared with the testing curve, which indicates that the influence of temperature on the actual flow of hydraulic pump, the volume efficiency and out-put power etc couldn't be ignored. Therefore, only when the characteristics of pressure and temperature both are considered together, can we evaluate the performance of a hydraulic pump overall.

Key words: Hydraulic pump, Performance parameter, Temperature