发明名称 LIFTING SCREW
摘要 FIELD: aviation. ^ SUBSTANCE: invention is related to the field of aviation, more precisely - to lifting screws of aircrafts. Lifting screw comprises axial vanes located on external side of split cup-like bush, inside of which centrifugal fan is installed, vanes of which rotate towards - opposite to direction of vanes rotation. ^ EFFECT: invention is aimed at improvement of aerodynamic characteristics of lifting screw with design simplicity. ^ 2 cl, 1 dwg
申请公布号 RU2354584(C2) 申请公布日期 2009.05.10
申请号 RU20070126161 申请日期 2007.07.11
申请人 GRECHISHNIKOV VLADIMIR DMITRIEVICH 发明人 GRECHISHNIKOV VLADIMIR DMITRIEVICH
分类号 B64C11/46;B64C27/32 主分类号 B64C11/46
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