JP2005119622A - Hovering flying object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hovering flying object capable of being applied to general flying objects requiring hovering by drastically enhancing moving performance, stability and safety most important in hovering by employing an entirely novel concept of structure, capable of being applied to a wide variety of cases such as transportation of the human being and loads to a spot not having a conventional runway or a narrow spot, disaster rescue, static observation and spray of agricultural chemicals and fire extinguishing chemicals as its application and having the extended range of using fields and applications by realizing better feeling of use and enhanced environment-friendly performance by greatly reducing operation sound and minimizing descending air current as compared with the conventional flying object. <P>SOLUTION: The flying object is composed of a disk-shaped airfoil (4); a motor (1) and a propeller (2) as a mechanism to send air flow (10) to the airfoil for producing the lifting force (11); a device to control the flying direction and ascent/descent of the flying object; and a silencing body (7) designed to suppress sound, as needed. The balance with the gravitational force (12) can be kept to enable the flying object to hover. Based on the adjustment of the force, ascent, descent and other forms of flying can be achieved. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

Detailed Description of the Invention

Industrial application fields

  The present invention greatly improves safety and stability, which are most important in hovering flight, and can be applied to all aircrafts that require hovering. Therefore, it can be expected that it will be used for a wide range of applications such as transporting people and luggage to places where there are no normal runways or narrow places, disaster relief, stationary observation, and spraying of agricultural chemicals and fire extinguishing agents. In addition, since the present invention has a much quieter operation sound and a minimum downflow (down force) compared to the conventional one, a comfortable feeling of use is obtained and the environmental resistance is greatly improved, so that it is possible to expand the application field and application. .

  Conventionally, there is generally a “helicopter” as a flying object. This is achieved by rotating a wing-like rotor (rotary wing) provided at the top of the flying body to obtain levitation force, hovering by this adjustment, and moving forward and backward, rotating, etc. as appropriate by controlling the aircraft. However, the disadvantage of this mechanism method is that a relatively large rotor is rotated at a high speed, resulting in a large rotational moment. This control is complicated and there are many problems in ensuring stability and operability. Further, the downdraft and noise from the rotor are severe and require many restrictions on use. It is hard to say that this rotor system is sufficient from the safety of contact accidents. As another example of the hovering method, there is an object that obtains a levitation force by injecting a propulsion jet such as a jet engine downward as seen in a “Haryer fighter”. Although it is possible to obtain the same movement performance as a helicopter by appropriately adjusting the direction and thrust of this blow, it is extremely difficult to control, is noisy, has poor energy efficiency, and is limited to extremely special applications such as military use. . In addition to the above, there is a “balloon”, but it has a relatively poor levitation force, tends to be a large skeleton, is difficult to handle, has a low exercise performance, and is difficult to use.

Problems to be solved by the invention

  The present invention has a completely new structure that does not have a rotating wing like a conventional helicopter, and as described above, flight stability, safety, and environmental friendliness (high efficiency, especially during hovering) that could not be obtained by conventional means. Low hovering, low downdrafts, etc.) and a hoverable flying body with sufficient motion performance in other directions can be realized.

Means for solving the problem

  The present invention mainly includes a hollow disk-shaped wing placed on a horizontal surface at rest, a mechanism for sending airflow along the wing in a substantially horizontal direction, that is, a prime mover such as an engine and a shaft for transmitting the shaft output. Accordingly, the propeller is driven to rotate, or a flow dividing plate and a flow straightening plate that appropriately change the direction and rectify the air flow generated by the propulsion jet of a jet engine or the like. Here, the drive shaft is provided perpendicularly to the blade surface, the propeller is provided at the upper part of the blade, the drive body including the prime mover is provided at the lower part thereof, and in the case of a jet engine, the propeller position is provided at a portion corresponding to the propeller position. In addition, it is set so that the airflow jetted from an upper propeller or jet engine provided at the lower part of the wing is sent and bent radially in the wing direction. In order to more effectively apply this air flow to the wing, a current plate is appropriately provided on the wing. Here, the cross-sectional shape of the blade is an airfoil shape in which a levitation force works above the surface when a high-speed airflow passes along its upper and lower surfaces. In such a configuration, the air flow generated by the propeller or the like is directed to the flow dividing plate, then bent substantially at a right angle, spreads radially, and passes over the upper and lower surfaces of the blade. At this time, an aerodynamic levitation force is generated upward on the wing. Here, the blade is adjusted so that the propulsion force in the horizontal direction is canceled by allowing the airflow to pass almost uniformly radially outward from the center. As a result, the flying object is in a hovering state when the upward levitation force generated and the downward gravity, ie, the total weight, applied to the entire mass of the flying object are balanced. Ascending or descending can be obtained by appropriately changing the balance between the levitation force and gravity. In addition, a silencer is provided around the outside of the wing as necessary to reduce the noise generated by the airflow flowing out from the back of the wing by the muffler effect and to prevent the generation of the downdraft.

Embodiment of the Invention

  When configured in this way, as described above, the driving body (housing) including the prime mover serves as a central part of the flying body, and also serves as a loading part for operation control equipment and passenger luggage. Since this structure is at the bottom, it has a low visibility and is convenient for getting on and off, and there is almost no downdraft or noise. As an application example of the present invention, a propeller or jet propulsion body can be provided horizontally on the wing surface as in a conventional airplane, but a plurality of propulsion forces can be provided to oppose each other if necessary. As a result, the conversion of the levitation force itself is not only due to the change in the rotational speed and the change in the jet jet strength due to the conversion of the driving force to the propeller, but in some cases, a mechanism for changing the blade pitch or the rectifying plate (movable) is added. And more easily. In addition, the direction change can be performed by appropriately providing a rudder along with the above-described current plate in combination with the above-described total action of conversion, or by providing it separately. It is also possible to use a combination of thrusts such as a plurality of propellers provided in the horizontal direction as described above. Moreover, it can contribute to the improvement of operativity by making a wing | wing a some composite body which can be divided | segmented suitably, and changing the angle of attack etc. suitably. Elevating a wing on the wing can contribute as well. Note that the wing in the present invention can be used for horizontal flight if the wing shape is appropriately set, and can be quickly and smoothly shifted to horizontal flight after ascending and taking off vertically by adjusting the propulsive force. It is possible to land down.

  In the following, the present invention will be described with reference to the embodiments shown in FIGS. In the figure, (1) is a peristaltic body, (2) is a propeller, (3) is a shaft, (4) is a wing, (5) is a shunt plate, (6) is a rectifying plate, (7) is a silencer, (10 ) Indicates airflow, (11) indicates levitation force, and (12) indicates gravity.

  As an example, FIG. 1 is a conceptual side sectional view of the present invention, and FIG. FIG. 1 shows the concept of the mechanism for hovering, and the rectifying plate (6) and the like are omitted. The rotational driving force obtained by the prime mover in the driving body (1) is transmitted to the driving shaft (3), and the propeller (2) in the upper part of the figure is rotated after that. For this reason, the generated air flow (10) is once ejected downward as shown by the broken line in the figure and then bent radially from the center in the horizontal direction by the flow dividing plate (5). As a result, the air flow (10) flows substantially uniformly from the inside to the outside along the upper and lower surfaces of the disc-shaped wing (4) when viewed from above (see FIG. 2). Here, when the cross-sectional shape of the wing (4) is such that the general upper surface is convex upward and the lower surface is substantially straight, an aerodynamic levitation force (11) is generated upward. On the other hand, gravity (12) corresponding to its weight exists in the downward direction in the housing, but hovering flight can be obtained by adjusting these two forces to be balanced. FIG. 2 is a conceptual view of this as seen from above, and a rectifying plate (6) is installed on the wing (4) to rectify the air flow (10) and a stable air flow flows on the wing (4). To help. The current plate (6) may be provided with a rudder (not shown) to serve as a rudder. Further, a silencer (7) can be provided at a position where the airflow (10) from the wing (4) is discharged at the outer peripheral edge of the housing and used for noise reduction. As for the muffling, an expansion type or a sound insulation type is appropriately used, and the downward noise can be reduced as much as possible in cooperation with the flow dividing plate (5). The wings (4) may be appropriately composed of a plurality and may be rotated with respect to each other. Moreover, it is also possible to provide an elevator in this as needed. The driver (1) can be used for a control device and a riding part.

  As another application example, a jet engine (not shown) can be provided instead of the propeller (2), and a jet can be obtained from this to obtain the same effect.

The invention's effect

  As described above, according to the present invention, a stable and safe hovering is possible, and since there is no large rotating body, a flying body with excellent motion characteristics such as rotation can be realized. In addition, since the downdraft and noise are minimized, there is an unprecedented advantage for the environment. In addition, vertical ascending and descending, which is an application of the hovering method, can be conveniently expanded with a minimum landing area. Note that flight in the horizontal direction can be easily performed by adjusting the wings and airflow. This direction change can provide a high degree of freedom in both speed and direction, and can lead to the realization of a completely new aircraft by combining smoothly with the transition from rising and falling in the vertical direction.

Side sectional conceptual diagram related to the present invention, Shows a conceptual diagram of the top surface.

Explanation of symbols

(1) Drive body (2) Propeller (3) Drive shaft (4) Wing (5) Diverging plate (6) Current plate (7) Silencer (10) Airflow (11) Levitation force (12) Gravity

Claims (1)

Airborne stationary state flight consisting of a disk-shaped wing, a mechanism for sending airflow to generate levitation force on this, a flight direction, a device for controlling ascent and descent, and a silencer to suppress the generated sound as necessary ( Hovering) possible flying object.

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