发明名称 |
AERODYNAMIC LIFTING TRACTOR PROPELLER |
摘要 |
FIELD: flying vehicle aerodynamics. ^ SUBSTANCE: proposed propeller includes frame 1 with axle 2; frame is rotatable relative to this axle; rotation is effected by means of drive. At least two aerodynamic surfaces 3 are secured on cardan joints for vibrations in synchronism with rotation of frame 1; cardan joint is secured to rod 5 mounted on frame 1. Axle 2 is connected with surfaces 3 by means of mechanical transmission which ensures their rotation in synchronism in opposite direction relative to frame together with rod 5. Vibration of surfaces 3 is performed by means of mechanical copying mechanism. Each surface 3 may be twisted relative to axes which are parallel to axes of cardan joint cross member and running through aerodynamic surface 3. Frame 1 rotates on axle 2 together with surfaces 3 by means of rotation drive. Each aerodynamic surface 3 rotates in synchronism with motion over circumference in opposite direction at angular velocity equal to angular velocity of motion of surfaces 3. Each surface 3 performs vibrations in synchronism with rotation by mans of mechanism copying mechanism. ^ EFFECT: smooth distribution of aerodynamic forces over aerodynamic surfaces; enhanced efficiency of forming lifting force and thrust. ^ 2 cl, 4 dwg |
申请公布号 |
RU2232105(C2) |
申请公布日期 |
2004.07.10 |
申请号 |
RU20020109755 |
申请日期 |
2002.04.16 |
申请人 |
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发明人 |
AKARO A.I.;DENISOV A.A.;ZELINSKIJ A.M.;MEDVEDEV M.M. |
分类号 |
B64C39/08;B64C27/08;B64C27/605;B64C39/00 |
主分类号 |
B64C39/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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