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In December 2012, Yilida announced the acquisition of Fulihua, an axial fan company located in Suzhou, China. In August 2014, Yilida announced the acquisition of the majority shareholding of Zhejiang MaEr Fan Co., Ltd. a fan company that specializes in the external rotor motor fans.
Elektrobau Mulfingen GmbH is the parent company of the ebm-papst Group, a manufacturer of electric motors and fans.The group was formed in 2003 from the merger of the companies Elektrobau Mulfingen GmbH & Co. KG (ebm), Papst Motoren GmbH and Motoren Ventilatoren Landshut GmbH and operates international production sites (including in Germany, China and the United States).
The stall zone for the single axial fan and axial fans operated in parallel are shown in the figure. [4] The Figure shows the Stall Prone Areas differently for One fan and Two fans in parallel. [4] The following can be inferred from the graph : For the Fans operated in parallel, the performance is less when compared to the individual fans.
Bellows, hydraulic-powered: Although it is unknown if metallurgic bellows (i.e. air-blowing device) in the Han dynasty (202 BC – 220 AD) were of the leather bag type or the wooden fan type found in the later Yuan dynasty (1279–1368), the Eastern Han dynasty mechanical engineer and politician Du Shi (d. 38 AD) applied the use of rotating ...
This type of fan is used in a wide variety of applications, ranging from small cooling fans for electronics to the giant fans used in cooling towers. Axial flow fans are applied in air conditioning and industrial process applications. Standard axial flow fans have diameters of 300–400 mm or 1,800–2,000 mm and work under pressures up to 800 ...
The axial fan is often contained within a short section of cylindrical ductwork, to which inlet and outlet ducting can be connected. Axial fan types have fan wheels with diameters that usually range from less than a foot (0.3 meters) to over 30 feet (9.1 m), although axial cooling tower fan wheels may exceed 82 feet (25 m) in diameter.