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分析了喷油单螺杆压缩机的内部泄漏，把泄漏流动简化为３种流态，从而建立了计算各泄漏通道瞬时泄漏流量和泄漏通道壁面相对运动引起的流体粘性剪切功耗的数学模型．此模型考虑了泄漏通道的截面积、间隙、长度、壁面相对速度、喷油量、油和气体的粘性、压差等因素对泄漏量的影响．比较了所研制的样机在不同工况下的实验值及计算值，给出了典型工况下的泄漏率和粘性剪切功耗的分布，并由此得出了一些有助于改进单螺杆压缩机性能的结论
The internal leakage of injection single screw compressor was analyzed and the leakage flow was simplified into three kinds of flow regimes. A mathematical model was established to calculate the instantaneous leakage flow of each leakage channel and the viscous shear power loss caused by the relative movement of the leakage channel wall. The model takes into account the influence of the leakage channel such as cross-sectional area, clearance, length, relative velocity on the wall, fuel injection amount, oil and gas viscosity, pressure difference and other factors. The experimental values and calculated values of the tested prototype under different operating conditions are compared. The leakage rate and the distribution of viscous shear power under typical operating conditions are given. Some conclusions are drawn as to how the single screw Compressor performance conclusions