The invention provides a propeller, a power assembly and an aircraft, relates to the technical field of flight, and aims to solve the technical problems of high noise and resistance increase caused by the fact that a wing tip of the propeller is easy to generate vortexes and cavitation bubbles. The propeller comprises a central column and at least two blades, the wing root of each blade is arranged on the central column, each blade is provided with two blade sections and a blade tip transition section, the wing root of each blade section is connected to the central column, and each blade section is provided with a windward first front edge and a first rear edge opposite to the first front edge; the wingtip transition section is a curved-surface-shaped transition section, the wingtip transition section is provided with a second front edge and a second rear edge opposite to the second front edge, the first front edges of the two blade sections are in transition connection through the second front edge, the first rear edges of the two blade sections are in transition connection through the second rear edge, and the second front edge and the second rear edge are both arc-shaped edges. The propeller provided by the invention is used in the aircraft.
本发明提供了一种螺旋桨、动力组件和飞行器,涉及飞行技术领域,以解决螺旋桨翼尖容易产生涡流和空泡从而造成噪音较大和阻力增加的技术问题。螺旋桨包括中心柱以及至少两个桨叶,每个桨叶的翼根设在中心柱上,每个桨叶具有两个桨叶段和叶尖过渡段,每个桨叶段的翼根连接于中心柱,每个桨叶段具有迎风的第一前缘,以及与第一前缘相对的第一后缘;翼尖过渡段为曲面状过渡段,翼尖过渡段具有第二前缘,以及与第二前缘相对的第二后缘,两个桨叶段所具有的第一前缘通过第二前缘过渡连接,两个桨叶段所具有的第一后缘通过第二后缘过渡连接,第二前缘和第二后缘均为弧线状边缘。本发明提供的螺旋桨用于飞行器中。
Propeller, power assembly and aircraft
一种螺旋桨、动力组件和飞行器
01.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
Aircraft propeller assembly and aircraft comprising same
Europäisches Patentamt | 2022
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