Positive- and negative-direction blowing-in and-out stilling -eliminating fan
A technology of air supply and exhaust and high-speed fans, which is applied in the direction of mechanical equipment, machines/engines, liquid fuel engines, etc., can solve problems such as surge, drop, and small working range of fans, and achieve the effect of preventing equipment damage accidents
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[0010] like figure 1 , figure 2 and image 3 As shown, the structure of the forward and reverse air supply and exhaust fan of the present invention includes a base 6 at the bottom of the base, a motor 5 inside the casing 4, an impeller 3 fixed on the motor shaft head and its The blade 11, the current collector 1 located at the end of the casing 4, its main feature is that a reflux device 2 protruding from the casing is provided outside the circumference of the impeller part, and the middle section of the reflux device 2 is a hollow cylinder, wherein Both sides of the segment are hollow conical barrels 7; the inner end of the reflux device 2 is fixedly connected to the inner end of the casing 4, and in this embodiment, it is connected by bolts through a flange, and the outer end is connected to the left part of the current collector. The inner end of device 1 is fixedly connected, and the present embodiment is connected by bolts through a flange; In this way, the casing 4, ...
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