Fan impeller
A fan wheel and hub technology, which is applied to the components of pumping devices for elastic fluids, non-variable displacement pumps, machines/engines, etc. Increase the difficulty of manufacturing and other issues to avoid uneven weight, improve balance accuracy, and save materials
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[0016] In order to make the above and other objectives, features, and advantages of the present invention more obvious and understandable, the following will specifically cite the preferred embodiments of the present invention, together with the accompanying drawings, and describe in detail as follows:
[0017] Please refer to FIG. 3, the first embodiment of the present invention: the fan wheel 1 is made of a plastic material (for example: polyphenylene sulfide, polypropylene, resin, polyether ether ketone, etc.) by an injection molding method. It can be selected as an axial fan wheel or a blast fan wheel. The fan wheel 1 in this embodiment is an axial fan wheel as an example of implementation. The fan wheel 1 has a hub 11, several fan blades 12 and a shaft 13, the hub 11 is in the shape of a hollow cylinder; the fan blades 12 are connected to the outer peripheral surface of the hub 11 in an equidistant arrangement; the The shaft 13 is coupled to the shaft center of the hub 11.
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