One way to increase the efficiency of a high-bypass jet engine is to turn the fan into an open rotor, a bit like returning to propellers, but using two rings of stubby counter-rotating blades.
提高高旁通飞机引擎的方法之一就是把风扇变成开放式旋翼，有点回归于螺旋桨的味道，但要使用两圈粗短的反旋桨叶。
Axial fan in the application of plant protection machinery more extensive, it has large air volume, high efficiency characteristics.
轴流风机在植保机械上应用较为广泛，它具有风量大、效率高的特点。
The fan has a good aerodynamic performance, smooth operation, high efficiency, long life characteristics, a total of A, B, C, D four kinds of structures.
该风机具有良好的气动性能、运转平稳、振动小、效率高、寿命长等特点，共有A、B、C、D四种结构。
The measurements show that the airfoil blade fan prevails over the plate one in the aspects of total pressure efficiency, stable operation range and high efficient operation range.
试验结果表明机翼型叶片在全压效率、稳定运行范围及高效运行范围比相应的板型叶片具有优越性；
In this article, a method of simulation for the gas-solid two-phase flow field in backward-blade centrifugal fan with high efficiency, which is style 4-72, has be developed.
风机。本文对具有较高效率、后弯式的4—72式锅炉引风机进行了气固两相流的数值模拟。
This paper introduces the advantages and real applications of BDK disrotatory high-efficiency axial fan.
介绍了BDK对旋高效轴流式风机的优点及其实际应用情况。
The research of the high-efficiency axial fan with skewed-swept rotating blades is given the basis of theory and testing in application of electric power system.
所研究的这种高效节能的弯掠动叶轴流风机为进一步在电力系统中应用提供了理论和试验基础。
Used on the newly developed high - efficiency and low energy consumption local fan are cast aluminum blades.
防爆局扇是我总厂新开发的高效率、低能耗的新型井下通风设备。
FFU laminar flow unit is an air filtering and purifying unit with its own blower fan, it comprises of primary efficiency filter, blower fan, high efficiency filter and static pressure box.
FFU层流罩是一种自带风机的空气过滤净化单元，它由初效过滤器、风机、高效过滤器和静压箱组成。
It is a kind of fan drive device equipped with high-efficiency air filter. It is used to collect dust particle, hold dust particle and control the pressure in working area.
是一种装有高效空气过滤器的风机驱动设备，用来收集尘粒、容纳尘粒和控制作业区压力。
High efficiency, low costs: Power consumption of swimming pool heat pump just spends on compressor and fan.
高效率，花费低：泳池热泵的电耗仅用于驱动压缩机和风扇电机的运转。
Fans: high efficiency, high reliability and low noise centrifugal fan, the wind a large amount of air distance and easy maintenance.
风机：采用高效率、高可靠性和低噪音的离心风机，风量大，送风距离远，维护方便。
The present invention can obtain fan parameters automatically, and has high development efficiency, high stability of created measuring code, and high versatility.
本发明可自动获取风扇参数，开发效率高，生成的测试代码稳定性高，通用性好。
Motor of fan applied is special for outdoor vertical type cooling tower with the merits of high efficiency, electricity-savings, good waterproof performance etc.
风机的电机采用户外立式冷塔专用电机，具有效率高、耗电省、防水性能好等特点。
On-site operation show that the high-voltage inverter for drum dry fan for speed energy efficiency, energy-saving effect is obvious.
现场运行情况表明，采用高压变频器对球团厂鼓干风机进行调速节能，节能效果是明显的。
Applications:Good for 1:18 on road car, ducted fan power and with gearbox for high efficiency power system.
应用：合适1：18房车动力。函道风扇以及带减速齿轮的高效率动力系统。
This system USES the monolithic fan speed control PWM give, non-pollution characteristics of energy saving, high efficiency and convenient use, the function is rich, has certain market prospect.
本系统采用单片机pwm给电风扇调速，具有无污染、节能、高效的特色，并且使用方便，功能丰富，具有一定的市场前景。
The outer rotor centrifugal fan can keep low-noise when transport air flow with high efficiency.
外转子离心风机能在高效输送气流的同时维持低噪声水平。
The outer rotor centrifugal fan can keep low-noise when transport air flow with high efficiency.
外转子离心风机能在高效输送气流的同时维持低噪声水平。
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