| 摘要: |
| 用实验方法研究了直通式直齿和直通式斜齿在不同的齿类厚度与封严间隙比、齿数和流向的条件下,泄漏量随蓖齿前后压力比的变化规律。得到了几个有价值的结论,提出了计算其泄漏量的经验公式。计算结果与实验数据吻合良好。 |
| 关键词: 航空发动机 压气机 旋转密封 迷宫密封件 |
| DOI： |
| 分类号:V232.4 |
| 基金项目:航空基金 |
|
| AN EXPERIMENTAL INVESTIGATION ON SEAL CHARACTER OF STRAIGHT-THROUGH LABYRINTH |
|
Wu Dinngyi
|
|
Dept. of Aeroengine Engineering, Northwestern Polytechnical Univ., Xi’an, 710072
|
| Abstract: |
| The influencing factors and correlations for flow parameter of straight-throughlabyrinth and slant labyrinth are investingated in experiments. The factors include the number andshape of restrictions,ratio of the restriction’s thickness to clearance,pressure ratio and flow direction.A number of valuable conclusions have been drawn on the basis of analyses. Empirical expressions forthe leakage are formulated. The agreement of calculation with experimental data is good. |
| Key words: Aircraft engine Air compressor Rotary sealing Labyrinth seal |
