Opening and closing propeller and electric vertical take-off and landing aircraft
A propeller hub and blade technology, which is applied in the field of aircraft, can solve the problems of high noise, large impact on passengers inside the noise, poor riding comfort, etc., and achieve the effect of reducing noise and air resistance.
Pending Publication Date: 2022-05-13
上海沃兰特航空技术有限责任公司
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Problems solved by technology
However, to achieve the same pulling force, the two-blade propellers need a faster speed, so the tip speed of the propellers is higher, which in turn generates more noise, which is very unfriendly to passengers and outsiders
[0004] The Chinese utility model patent with the announcement number CN214190098U and the application number 202022260455.0 discloses a vertical take-off and landing aircraft. Environmental requirements for medium take-off and landing, and its noise has a greater impact on internal passengers, and the ride comfort is poor
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[0053] Exemplary embodiments of the present application are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are only used to teach those skilled in the art how to implement the present application, but are not intended to exhaust all possible ways of the present application, nor are they used to limit the scope of the present application.
[0054] The present application relates to a retractable propeller and an electric vertical take-off and landing aircraft including the retractable propeller. In this embodiment, the electric vertical take-off and landing aircraft is sometimes referred to as eVTOL, eVTOL aircraft or aircraft. figure 1 It shows the opening and closing propellers of the present application when the electric vertical take-off and landing aircraft is in level flight, figure 2 It shows the opening and closing propeller of the present application when the electric vertical take-off and landing...
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The invention provides an opening and closing propeller and an electric vertical take-off and landing aircraft. The opening and closing propeller (1) comprises an upper propeller assembly (11), a lower propeller assembly (12) and a transmission shaft assembly (13), the upper propeller assembly (11) and the lower propeller assembly (12) are coaxially connected to the transmission shaft assembly (13), one of the upper propeller assembly (11) and the lower propeller assembly (12) is fixedly connected to the transmission shaft assembly (13), and the other of the upper propeller assembly (11) and the lower propeller assembly (12) is fixedly connected to the transmission shaft assembly (13). And the other one can rotate around the transmission shaft assembly (13) in a plane relative to the one side, so that the upper paddle assembly (11) and the lower paddle assembly (12) can be switched between a mutually parallel state and a mutually intersected state.
Description
technical field [0001] The present application relates to the technical field of aircraft, and in particular to an aircraft with propeller opening and closing and electric vertical take-off and landing. Background technique [0002] At present, as a new type of short- and medium-distance air transportation, eVTOL (Electric Vertical Takeoff and Landing) electric vertical takeoff and landing aircraft has achieved near-zero emissions while having the advantages of high safety, low noise, low manufacturing cost, and low operating cost. , thus attracting widespread attention from aerospace companies, the automotive industry, the transportation industry, the government, the military, and academia. In addition, the electric vertical take-off and landing aircraft also has the characteristics of safety and reliability (no explosion and fuel leakage), simple structure, easy operation and use, good maintainability / low cost, and good economy. [0003] For compound-wing electric vertica...
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IPC IPC(8): B64C11/48B64C27/10B64C27/14B64C27/22B64C27/28
CPCB64C11/48B64C27/10B64C27/14B64C27/22B64C27/28B64C2230/14B64C2230/28
Inventor 陈修贤王春强姚远王东方杨万里党铁红董明
Owner 上海沃兰特航空技术有限责任公司