泄漏通道

阀座环通过密封焊接，消除泄漏通道。

Seat ring is seal welded to eliminate leak path .

根据计算结果分析：转子齿顶圆面与泵腔内壁间构成的泄漏通道面积占总泄漏面积的70%以上。

According to the results , the leakage area between rotor and stator take more than 70 percent of the total leakage area , is the main leakage path in the pump .

在转子压缩机内转子和气缸之间采用间隙配合，其泄漏通道通过油膜来密封的。

In rolling piston compressors , clearance fit is adopted between rotor and cylinder . Its leakage passages are pressurized by oil films .

给出了螺杆转子级间泄漏通道的构成以及泄漏面积的详细计算公式和图表。

It also gives the consistent of the leakage paths of rotor and a detailed calculation of formulas and charts of the leakage area .

讨论了常规工质双转子膨胀机的主要泄漏通道及泄漏模型，并建立了膨胀机的摩擦损失模型与泄漏损失模型。

The main leakage channel and leakage model of working fluid was discussed . Then the friction loss model and leakage loss model was established .

首先根据螺杆压缩机的结构特点，定义了五种泄漏通道，并针对这些通道的特点，建立了相应的数学模型。

Five leakage paths are identified according to the structure of twin screw compressor , and mathematical models are established according to the features of the paths .

对第二部分，利用分形理论来描述随时间变化的密封端面的形貌，给出了密封端面上泄漏通道的数学表达式，将这些泄漏通道也抽象成收缩喷嘴，从而获得经过泄漏通道的泄漏量。

For the second part , using fractal theory describes surface topography of seal faces varying with time and the mathematical expression of leakage channel in seal faces is presented .

根据流体间隙流动特性，分析了内啮合齿轮泵内部结构及其泄漏通道，建立了内部泄漏流量的数学模型；

Based on the clearance flow behavior of fluid , the interior structure and leakage flow were analyzed and the mathematical model of leakage flow about the internal gear pump was established .

针对同步回转式空气压缩机气缸内部泄漏通道多、间隙相对长度较大的特点，建立了系统泄漏模型，分析了各个泄漏通道的几何特点、运动特征和压差与泄漏量之间的关系。

Leakage model of the synchronal rotary air compressor was established toward its characteristics of more leaking channels and relatively longer leaking line . And it analyzed the relation among the leakage rate and the leaking channels ' geometric features , motion characteristics and pressure difference in detail .

首先利用气液双相流动理论，推导出了由填料组件与活塞杆所组成的泄漏通道中润滑油膜厚度，并根据润滑油膜厚度确定泄漏通道中流体的泄漏模型。

Firstly , using the theory of gas-liquid two-phase flow , deduced the thickness of lubrication film in the leakage gap which make from packing assembly and piston rod , and determined leakage model of the fluid in the leakage gap according to the thickness of lubrication oil film .

对于不同的间隙尺寸，对于环壁静止与旋转的不同壁面条件，揭示了泄漏流与通道二次涡相互作用的细节，揭示了泄漏涡的生成与发展过程。

The details of the interaction between leakage flow and passage secondary flow and the details of generation and development of leakage vortex were predicted under different clearance scale and the condition of both stationary and rotating hub .

定常数值模拟结果表明，近失速工况下泄漏涡在叶片通道内部发生破碎，涡破碎使得堆积在机匣壁上的低能流体迅速扩散，对来流产生了很大的阻塞效应。

The vortex breakdown results in the low-energy fluid accumulating on the casing wall spreads out remarkably , which has a large blockage effect on incoming flow .

结果表明：叶顶间隙的大小与泄漏流动的强度和通道内的尾迹区位置分布密切相关，泄漏流动与通道涡的相互作用严重影响了通道内的流场分布。

The results shows : the scale of top blade clearance is closely relative to the strength of leakage flow and distribution of tail trace position in passage , the leakage flow and passage vortex interaction has seriously affected the flow field distribution of inner passage .