发明人：EDGAR SATERDAL 申请号：AU3615778
申请日：19780516热风循环烘箱结构图
互动投影装置
threadx操作系统公开号：AU3615778A
公开日：
19791122
光端机箱摘要：In an axial fan having an impeller with settable blades and wherein the root end of each blade connects, via a bearing permitting rotation of the blade, to the outer end of a blade-attachment shaft extending substantially radially relative to the impeller, the blade-attachment shaft is rigidly connected at its inner end to an impeller hub. The blade-attachment shaft is abutted against the radial outer side of the hub and is pre-tensioned by compressing said shaft in the longitudinal direction thereof against said hub.
黄泥巴烤鸡申请人：SVENSKA, FLAKTFABRIKEN A.B.
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