Based on the analysis of existing studies on the calculation of the process of compression of a droplet liquid in a displacement pump, we developed a method for assessing the effect of external heat transfer, deformation work and mixing heat transfer on the working fluid heating in the pump. Using the results of a numerical experiment on the increase in pressure and temperature during compression in a positive displacement pump, it was found that the greatest influence on the increase in pressure during compression is by deformation processes (an increase in pressure due to a change in volume ranges from 80 to 92%), then there is mass transfer (pressure increase is from 7 to 16%) and heat exchange, the values of which are about 2.5%. The decisive effect on the working fluid heating in the working chamber of the pump is the conversion of deformation work into heat (from 92 to 95%), the values of external and mixing heat transfer are approximately the same and range from 2.5% to 3.5% each. The nature of the effect of the independent variables used (discharge pressure, crankshaft speed, radial clearance in the cylinder-piston group and the average temperature of the working chamber surface) on each of the components of the relative change in pressure and temperature during the compression process has been established. We established that the crankshaft revolutions has the greatest effect on the relative increase in pressure and temperature during compression, followed by the value of the radial clearance and discharge pressure. The average temperature of the surface of the working chamber has practically no effect on the increase in pressure due to the processes of deformation, mass transfer and heat interaction and only affects the relative change in temperature due to external heat transfer.

在分析现有容积泵中液滴液体压缩过程计算研究的基础上，我们提出了一种评估外部传热、变形功和混合传热对容积泵中工质加热影响的方法。泵。通过对正排量泵压缩过程中压力和温度增加的数值实验结果发现，对压缩过程中压力增加影响最大的是变形过程（由于压力变化而导致的压力增加）。体积范围为80%~92%），然后是传质（压力增加7%~16%）和热交换，其值约为2.5%。对泵工作腔内工质加热的决定性影响是变形功转化为热量（92%~95%），外传热和混合传热值大致相同，范围为2.5%~3.5 ％ 每个。所使用的自变量（排气压力、曲轴转速、气缸-活塞组的径向间隙以及工作室表面的平均温度）对每个部件在工作过程中压力和温度相对变化的影响的本质压缩过程已经建立。我们确定曲轴转数对压缩过程中压力和温度的相对增加影响最大，其次是径向间隙和排出压力的值。工作室表面的平均温度实际上对由于变形、传质和热相互作用过程而导致的压力增加没有影响，而仅影响由于外部传热而导致的温度的相对变化。