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1)  inlet gap of impeller
叶轮间隙
2)  clearance between oil-plate and impeller
油板与叶轮间隙
1.
The author shows the influence of the clearance between oil-plate and impeller to the function of oil pump through the analysis and clearing of blown fuse troubles (0 kM) on SANTANA VISTA, thus it provides the basis to analyze and clear the troubles of the electric oil pump and the engine.
通过对上海大众志俊轿车熔断丝熔断故障(零公里)的分析与排除,揭示了油板与叶轮间隙对油泵功能的影响,为分析、排除电动燃油泵乃至发动机故障提供了依据。
3)  runner [英]['rʌnə(r)]  [美]['rʌnɚ]
叶轮余隙
4)  tip clearance
叶尖间隙
1.
In order to study the influence of tip clearance flow on the performance of a transonic compressor,a high-load transonic fan s rotor with five constant width clearances and two step-clearances were numerically simulated.
为研究跨声压气机叶尖间隙流动对性能影响的特征,数值计算了某高负荷跨声风扇转子在5种等高间隙和两种阶梯间隙结构下的性能。
2.
The influence of tip clearance on the performance of fan rotor has been investigated by numerical method at different clearances.
在不同叶尖间隙下,对高负荷风扇转子的特性进行了研究;通过数值方法分析了叶尖间隙对转子特性的影响。
3.
The 3-D flow of the first rotor with tip clearance of a three-stage fan is simulated.
对某三级跨声速风扇第一级转子带叶尖间隙的三维流动进行了数值模拟,分析了6种不同叶尖间隙下转子的性能和失速裕度,发现转子在无间隙时总压比和等熵效率最高。
5)  blade tip clearance
叶顶间隙
1.
Analysis of the flow through the blade tip clearances of axial pumps by CFD;
轴流泵叶顶间隙流动的计算流体动力分析
2.
Optimization design of turbine blade tip clearance shapes
涡轮叶顶间隙形态的优化
3.
The results of the study indicate that the blade tip clearance will lead to a flow blockage at the top zone and increase the separation loss at that zone.
结果表明:动叶叶顶间隙会造成顶部区域的通流阻塞并加重顶部分离损失,根部倒角会减小根部的气流折转角,降低做功能力,而且扩大根部分离区,减小根部流量,增大根部分离损失,因此为了提高数值模拟的准确性应考虑动叶叶顶间隙和根部倒角。
6)  Tip clearance
叶顶间隙
1.
3-D numerical analysis of the tip clearance of an aero-engine high pressure turbine;
某型航空发动机高压涡轮叶顶间隙三维数值分析
2.
Numerical analysis of the secondary flow and tip clearance leakage loss
二次流与叶顶间隙损失的数值研究
3.
Numerical analysis of high pressure turbine tip clearance variation
高压涡轮叶顶间隙变化的数值分析
补充资料:半开式叶轮
分子式:
CAS号:

性质:没有轮盖的离心式叶轮。由整块锻件铣制成型,叶片和轮盘的一整体,且都做成径向直叶片。其结构强度高,叶轮的圆周速,度可达450~500m/s,单级压力比高,但叶道中气流速度和马赫数较高,泄漏损失较大,级效率此闭式叶轮低,工况稳定性差。广泛用于内燃机透平增压器和小功率燃气轮机的离心式压缩机,在固定式离心式压缩机上的应用也增多。

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