KR20100020854A - Vtol plane adapting coaxial counter-rotating rotor system - Google Patents
Vtol plane adapting coaxial counter-rotating rotor system Download PDFInfo
- Publication number
- KR20100020854A KR20100020854A KR1020080079646A KR20080079646A KR20100020854A KR 20100020854 A KR20100020854 A KR 20100020854A KR 1020080079646 A KR1020080079646 A KR 1020080079646A KR 20080079646 A KR20080079646 A KR 20080079646A KR 20100020854 A KR20100020854 A KR 20100020854A
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- Prior art keywords
- rotor
- assembly
- coaxial
- rotor system
- rotor assembly
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- 238000005339 levitation Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000003570 air Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 230000001965 increasing effect Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
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- 239000000463 material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 235000012489 doughnuts Nutrition 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 239000004020 conductor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
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- 238000005728 strengthening Methods 0.000 description 1
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- 239000000057 synthetic resin Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/08—Helicopters with two or more rotors
- B64C27/10—Helicopters with two or more rotors arranged coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D17/00—Parachutes
- B64D17/80—Parachutes in association with aircraft, e.g. for braking thereof
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
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Abstract
Description
The present invention relates to a vertical takeoff and landing vehicle using a coaxial reversal rotor system, and more specifically, has a fixed body coupled to a lower rotor system in a coaxial reversal rotor system for coaxially inverting two rotors provided up and down. Coaxial reversing rotor that installs a plurality of angle-adjustable flaps in the lower rotor system and the fixed body and couples the rotor and the fixed body to the mother by a wire, thereby increasing safety and at the same time increasing lift and thrust synergy. A vertical takeoff and landing vehicle using the system.
The dual coaxial reversing rotor system (also referred to simply as the coaxial reversing rotor system) means that rotors rotating in opposite directions are placed vertically on the rotor shaft, which is almost vertically located near the center of the aircraft. The system is currently used in helicopters.
This system eliminates the turning force generated by one rotor (reaction force due to rotation) as the other rotor rotates in the opposite direction, preventing the flow of gas without the need for a tail rotor and making it easier to change the attitude of the gas. By focusing the engine output distributed to the tail rotor on two rotors, the torque at the rotor rotation can be increased to improve the load capacity and maneuverability.
In addition, since the tail rotor is not required, the aircraft can be miniaturized, and the lifting force is high and the maneuverability and safety are good compared to the operating power. These coaxial helicopters are commercialized as Russia's Kamov helicopter series, and are also used for forest fire disaster prevention and lifesaving purposes.
However, in spite of these advantages, the coaxial reversal helicopter has a problem in that the structure and control of the two rotor systems are complicated, and the drag against the field is large, so that the moving speed is limited by the forward speed.
In addition, as the upper and lower rotors rotate in the opposite direction, an interference phenomenon occurs and lift efficiency is lowered. Like the conventional helicopters, the two rotors are exposed to the outside, which is very significant to facilities and human life around the rotor. There was a need to secure safety because it could pose a threat.
In addition, like a conventional helicopter, when a crisis situation such as a damaged power source occurs, a fatal disadvantage exists that the safety of the crisis situation is weak because the operator falls down immediately without defense.
On the other hand, a so-called gyroplane is equipped with a rotor that rotates its own path without power driving, so it does not suddenly fall vertically even when the forward speed reaches zero in a crisis situation, but the rotor continues to rotate as the rotor continues to rotate and settles on the ground. It has the characteristics to do it.
Of course, the gyroplane's characteristics of being able to secure safety in a crisis situation is recognized as an advantage, but unlike a helicopter, it is not a vertical takeoff and landing, but the inconvenience of having to take off and landing distance by a runway, and due to inconvenient turnover, There is a problem of this vulnerability.
If the aircraft that can carry about 2 to 4 people can be miniaturized without using a coaxial reversing rotor system, it can be secured by its own rotation by the gyro effect even if there is no forward speed like gyroplane. If you can safely land with one lift, you can create as much demand as your car.
However, when examining domestic and international patent publications on coaxial inverted aircraft or gyroplane, although some of the above-mentioned disadvantages are locally overcome, there is a technique having a structure and a flight principle that can collectively improve and restore the above-mentioned disadvantages. I couldn't find it.
Therefore, it is urgent to study new and advanced aircraft using coaxial reversing rotor system, which has a configuration and function that distinguishes the existing coaxial reversing helicopter and greatly enhances safety.
The present invention has been made to overcome the problems of the above technology, in order to solve the problem that the thrust loss caused by the interference caused by the inversion of the upper rotor and the lower rotor in the aircraft equipped with the conventional coaxial inversion rotor system, The main purpose is to increase the flight speed by installing a plurality of flaps in the rotor to guide the air properly to the bottom and to install a fixed assembly having a plurality of flaps at the bottom of the lower rotor to convert the induced air into thrust.
Another object of the present invention is to provide at least the lower rotor and the fixing assembly in a doughnut-like shape by the inner and outer side rims, as compared to the existing propellers exposed to the outside as well as to place the airbag in the cockpit and to install the parachute system on top of the rotor shaft. In addition, the safety is further enhanced.
Another object of the present invention is to provide a gyro effect through the action of the flap of the lower rotor and the stationary assembly, and in a manner that forms the lower rotor larger than the upper rotor.
It is a further object of the present invention to place the lower rotor and the fixing assembly in close contact with each other to prevent the occurrence of vortex or interference phenomena in the interspace.
It is a further object of the present invention to apply the magnetically levitated linear motor system when closely arranging the lower rotor and the fixed assembly to smoothly and safely rotate the lower rotor without loss of friction.
In order to achieve the above object, a vertical takeoff and landing vehicle to which the coaxial reversal rotor system according to the present invention is applied comprises: a rotor shaft; matrix; A first rotor system including a rotor; It is provided in the lower portion of the first rotor system, the second having a rim formed in a circular shape on the inside and the outside with a difference in diameter and a plurality of radially provided a first flap that can be adjusted between the inner and outer rim A second rotor system comprising a rotor assembly; Positioned closely to the bottom of the second rotor system, having a rim formed in a circular shape on the inner and outer sides with a difference in diameter and a plurality of second flaps with an adjustable angle between the inner and outer rims at regular intervals A fastening system comprising a fastening assembly disposed parallel to the front side; And a supporter which connects the inner rim of the second rotor assembly and the rotor shaft to transfer the rotational force to the second rotor assembly, and connects and fixes the inner rim of the fixing assembly to the mother.
In addition, a protruding piece is formed along a circumference of one side of the inner and outer rims of the fixing assembly and includes a stator, and a protruding piece is formed along a circumference of the proximal portion where the stator is formed in the second rotor assembly, thereby providing a rotor. And forming a magnetic levitation system including the stator and the rotor on one side of the stationary assembly and the second rotor assembly to allow the second rotor assembly to rotate on the stationary assembly while maintaining a short range.
According to the vertical takeoff and landing vehicle using the coaxial reversal rotor system according to the present invention,
1) By applying the coaxial reversing rotor system, it has the advantages such as vertical takeoff and landing, and has the advantage of increasing thrust speed by promoting thrust while minimizing the interference of air generated when rotating the upper and lower rotors.
2) The rotor may be provided in the form of disc or donut to prevent safety accidents that may occur when the rotor is rotated.
3) In case of a fall in a crisis situation, it can bring about the gyro effect by inducing air by the flap of the lower rotor and the fixing assembly, which can greatly increase occupant safety.
4) Lifting control or propulsion control of the vehicle can be more easily performed by freely adjusting the flap angle,
5) With the application of the magnetic levitation system, it is possible to prevent the secondary rotor rotation and interference phenomenon more precisely and in detail.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale, and the same reference numerals in each of the drawings refer to the same components.
1 is a perspective view showing a schematic structure of a vertical takeoff and landing aircraft applying the coaxial reversing rotor system according to the present invention, Figure 2 is a front view of a vertical takeoff and landing aircraft applying the coaxial reversing rotor system according to the present invention.
As can be seen from Figures 1 and 2, the aircraft according to the present invention is an upper rotor (rotor of the first rotor system) that is fixed to one
The first rotor system according to the present invention is based on the rotation in the opposite direction to the
In other words, the first rotor system rotates the
In the first rotor system, the rotor may of course apply a plurality of
However, considering that lift and thrust are generated by the rotation of the rotor, the rotor structure in the existing coaxial reversal rotor system should be particularly excessively deformed, and the rotor in the first rotor system is the conventional coaxial reversal. It would be desirable to consist of a plurality of
A lower portion of the first rotor system is mounted with a composite structure having a structure and an arrangement position as shown in FIG. The composite structure according to the invention is a combination of a second rotor system with a
3 is a plan view showing a schematic structure of a second rotor assembly according to the present invention.
The second rotor system consists of an
The reason why the
The
The
The
If the
As mentioned above, the aircraft according to the present invention may have a gyro effect which has a gyroopter (gyroplane), which is a fixing assembly of the
Between the inner and
The
That is, the angle of the
4 is a perspective view showing a schematic structure of a fixing assembly according to the present invention.
The fixing system according to the present invention is formed in the lower part of the second rotor system, in particular, characterized in that it comprises a fixing
As can be seen from Figure 4, the fixing
At this time, unlike the
In addition, an appropriate number of
The first and
In addition, the first and
5 is a perspective view schematically showing the function of the first and second flaps according to the present invention.
Figure 5 shows an example of a scene while the aircraft according to the present invention is flying, first, the
That is, the
As described above, the
In other words, while the air passes through the first and
Figure 6 (a) is a conceptual diagram showing the rotor arrangement principle for the forward flight in the conventional coaxial reversal helicopter, Figure 6 (b) is a conceptual diagram showing a second flap arrangement for the forward flight in the aircraft according to the present invention.
As can be seen from Figure 6 (a), in order to move forward (reverse) in the conventional coaxial reversing helicopter was used to advance the flight by adjusting the angle of the rotor blade (propeller). That is, the rotor blades (propellers) are designed to be inclined at a predetermined angle up and down relative to the horizontal, so that a part of the thrust acting on the rotor blades by the inclination is used for horizontal movement. However, in this case, in consideration of the safety of the mother, there is a fundamental problem that the inclination limit of the rotor blades is not large so that the wind that can be used for thrust has a limit, so that the speed is slow and mobility is reduced.
However, as can be seen with reference to Figure 6 (b), in the aircraft according to the present invention, the
As mentioned above, it is well known that when the
In addition, the control of the left and right turning movement, that is, yawing, of the vehicle according to the present invention is similar to the known coaxial inversion helicopter, and the pitch (notice) of the
In addition, the
In order to perform the above functions, it is important that the
That is, the
The reason is that the
Therefore, in order to prevent the phenomenon that the fatigue of the fixing
Figure 7a is a front view schematically showing the structure of the support for supporting the fixing assembly according to the present invention, Figure 7b shows a state of applying the magnetic levitation principle between the coupling end of the fixing assembly and the second rotor assembly according to the present invention One front view.
FIG. 7A illustrates a structure in which the fixing
The supporting method of the fixing
However, according to the
FIG. 7B is a front view illustrating the installation of a magnetic levitation linear motor at the ends of the second rotor assembly and the fixing assembly. FIG.
As can be seen from FIG. 7B, the protruding
In this case, magnetic force, specifically repulsion force, is generated between the
Referring to the action on the aircraft according to the present invention equipped with such a magnetic levitation linear motor in detail, it is provided at any one position of the
In this process, the fixed
In addition, it is a matter of course that the
Magnetic levitation linear motor applied to the present invention is not made in a straight line, but is formed in a circular shape around the outer rims (23, 33) of the
Since the magnetically levitated linear motor is a known technology, a detailed description thereof will be omitted.
When the magnetic levitation linear motor is installed in this way, the
In addition, in order to cope with a failure situation of the linear motor, a roller or a bearing device is further provided around the
In addition, when the magnetic levitation linear motor does not operate due to the reason why the vehicle is stopped, the
That is, the
The
In addition, the
The
To this end, the
Alternatively, if only the bending property can be solved, the
The
The vehicle according to the present invention may use a turboprop to turbojet engine, or a small ramjet engine may be mounted on the
The mounting of such an engine can of course have various applications by applying the optimum engine among known engines.
In addition, various types of aircraft can be manufactured by applying a method of applying a coaxial inversion rotor system according to the present invention.
As described so far, the configuration and operation of the vertical takeoff and landing vehicle to which the coaxial reversal rotor system according to the present invention is applied are described in the above description and the drawings, but this is merely an example and the idea of the present invention is described in the above description and the drawings. Without being limited, various changes and modifications are possible without departing from the technical spirit of the present invention.
1 is a perspective view showing a schematic structure of a vertical takeoff and landing vehicle to which a coaxial reversal rotor system according to the present invention is applied.
Figure 2 is a front view of the vertical takeoff and landing vehicle to which the coaxial reverse rotor system according to the present invention.
3 is a plan view showing a schematic structure of a second rotor assembly according to the present invention;
4 is a perspective view showing a schematic structure of a fixing assembly according to the present invention;
5 is a perspective view schematically showing the function of the first and second flaps according to the present invention;
Figure 6 (a) is a conceptual diagram showing the rotor arrangement principle for the forward flight in the conventional coaxial reversal helicopter, Figure 6 (b) is a conceptual diagram showing a second flap arrangement for the forward flight in the aircraft according to the present invention.
Figure 7a is a front view schematically showing the structure of the support for supporting the fixing assembly according to the present invention.
Figure 7b is a front view showing a state of applying the magnetic levitation principle between the coupling end of the fixing assembly and the second rotor assembly according to the present invention.
<Explanation of symbols for the main parts of the drawings>
10: rotor blade 31: second flap
20: second rotor assembly 35: stator
21: First flap 40: Supporter (for second rotor assembly)
23,33 Inner rim 50: Supporter (for stationary assembly)
24, 34: spoke 60: angle adjustment module
25: Rotor 100: Matrix
29, 39: protrusion 200: parachute system
30: fixed assembly
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020080079646A KR20100020854A (en) | 2008-08-13 | 2008-08-13 | Vtol plane adapting coaxial counter-rotating rotor system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080079646A KR20100020854A (en) | 2008-08-13 | 2008-08-13 | Vtol plane adapting coaxial counter-rotating rotor system |
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Publication Number | Publication Date |
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KR20100020854A true KR20100020854A (en) | 2010-02-23 |
Family
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KR1020080079646A KR20100020854A (en) | 2008-08-13 | 2008-08-13 | Vtol plane adapting coaxial counter-rotating rotor system |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101630207B1 (en) | 2015-12-30 | 2016-06-24 | 장석훈 | Retrieval apparatus for for unmanned aerial vehicles and method for retrieving thereof |
CN107856849A (en) * | 2017-11-20 | 2018-03-30 | 沈阳揽月工业设计有限公司 | A kind of gyro disk propeller-type vertically taking off and landing flyer |
RU2658467C1 (en) * | 2016-12-27 | 2018-06-21 | Ростовский вертолетный производственный комплекс, Публичное акционерное общество "Роствертол" | High-speed twin screw helicopter of the coaxial scheme |
WO2018190670A1 (en) * | 2017-04-13 | 2018-10-18 | 오성 | Blade tip rotary vane |
KR20190137454A (en) | 2018-06-01 | 2019-12-11 | 사단법인 캠틱종합기술원 | Vertical takeoff and landing unmanned aerial vehicle |
-
2008
- 2008-08-13 KR KR1020080079646A patent/KR20100020854A/en not_active Application Discontinuation
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101630207B1 (en) | 2015-12-30 | 2016-06-24 | 장석훈 | Retrieval apparatus for for unmanned aerial vehicles and method for retrieving thereof |
RU2658467C1 (en) * | 2016-12-27 | 2018-06-21 | Ростовский вертолетный производственный комплекс, Публичное акционерное общество "Роствертол" | High-speed twin screw helicopter of the coaxial scheme |
WO2018190670A1 (en) * | 2017-04-13 | 2018-10-18 | 오성 | Blade tip rotary vane |
CN107856849A (en) * | 2017-11-20 | 2018-03-30 | 沈阳揽月工业设计有限公司 | A kind of gyro disk propeller-type vertically taking off and landing flyer |
CN107856849B (en) * | 2017-11-20 | 2024-02-02 | 沈阳揽月工业设计有限公司 | Gyro disk propeller type vertical take-off and landing aircraft |
KR20190137454A (en) | 2018-06-01 | 2019-12-11 | 사단법인 캠틱종합기술원 | Vertical takeoff and landing unmanned aerial vehicle |
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