JPS6325194A - Rigid body sail device having rotor and flap - Google Patents

Abstract

PURPOSE:To prevent an air flow along a surface of a rigid body sail from burbling by arranging rotors on both sides of a rigid main wing and further arranging a foldable auxiliary wing flap beside the rotor. CONSTITUTION:A mast 6 is erected on a hull 13 via a turning device 7. A rigid body sail S is arranged at the top of the mast 6 rotatably about a vertical axis. A rigid main wing 1 is attached to the upper end part of the mast 6 via a lower end plate 10, with the upper end part of the main wing 1 fixed with an upper end plate 11. while rotors 2 are rotatably equipped respectively to both ends of the main wing 1, a flap 4 having an auxiliary wing is arranged beside the rotor 2. The flap 4 having the auxiliary wing consists of a flap 4a and an auxiliary wing 4b, rotatably supported about a vertical axis, and constituted to be foldable.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sail device installed on a ship, and more particularly to a rigid sail device equipped with a rigid main wing.

[Conventional technology]

Conventionally, in order to save fuel consumption of the main engine of a ship, a technique of providing a rigid sail on a ship has been developed.

[Problem that the invention seeks to solve]

By the way, in conventional rigid sail systems, boundary layer control of the sail wing surfaces is not performed, and if the angle of attack of the sail is large with respect to the wind direction, the sail stalls and it cannot be expected to obtain a large lift force.

Therefore, the present invention combines a rigid sail with two rotors and a flap with an aileron to perform boundary layer control, thereby achieving high lift without stalling even at a considerably large angle of attack. It is an object of the present invention to provide a rigid body sail device with a rotor and a flap that can obtain the following.

[Means for solving problems]

For this reason, the rigid body sail device with a rotor and flaps of the present invention is equipped with a rotor on both sides of a rigid main wing, and a flap with an aileron next to the rotor, so that the aileron is 1 inch in size. It is characterized by a foldable flap.

[For Cft] In the above-described rigid sail device with a rotor and flaps of the present invention, boundary layer control of the wing surface of the rigid sail is performed by the rotor and the flap with aileron, and the airflow along the surface of the rigid sail is separated. Flows smoothly at high speeds without causing any turbulence.

Furthermore, the airflow along the back surface of the rigid sail is decelerated by the rotor and flap with aileron and flows at a small speed.

〔Example〕

Hereinafter, a rotor and a rigid sail device with flaps as an embodiment of the present invention will be explained with reference to the drawings. FIG. 1 is a side view thereof, FIG. FIG. 4 is a horizontal sectional view showing the effect.

As shown in FIG. 1, in the rigid sail device with a rotor and flaps of this embodiment, a mast 6 is erected on a hull 13 via a swing device 7, and a rigid sail S is attached to the upper end of the mast 6. ,
It is driven by the above-mentioned turning device 7 and is provided so as to be able to turn around a vertical axis. This rigid sail S is constructed as shown in Fig. 1.2.

That is, the rigid main wing 1 is provided at the upper end of the mast 6 via the lower end plate 10, and the upper end plate 11 is provided at the upper end of the regeneration 'R1.
is fixed. Between the upper end plate 11 and the lower end plate 10, rotors 2 are installed on both sides of the main wing 1 so as to be rotatable around the vertical axis. Equipped with winged flaps 4. These aileron-equipped flaps 4 are comprised of a flap 4a and an auxiliary g4b that are integrally connected by upper and lower end plates 5, 5, and are pivotably supported around a vertical axis so as to be foldable.

Furthermore, a support member 3 is interposed between the rotor 2 and the flap 4 with aileron.

And these lower end plates 10. Upper end plate 11° Main wing 1
．． Rotor 2. The flap with aileron 4 and the support member 3 constitute a rigid sail S.

Further, on the lower surface of the lower end plate 10, a rotation device 9 for rotationally driving the rotor 2 around the vertical axis is provided, and a flap rotation device 8 for rotating the aileron-equipped flap 4 around the vertical axis. is provided.

With the above-described configuration, in the rigid body sail device with a rotor and flaps of this embodiment, the rigid body @S is driven by the swing device 7 so that it takes an optimal angle of attack with respect to the direction of the wind flowing into the rigid body @S. Rotated and adjusted.

Now, as shown in FIG. 3, a case will be described in which the angle of attack of the rigid sail S is set to be considerably large with respect to the wind 12 that enters the rigid sail device of this embodiment. In this case, the wind 12 on the right side of the diagram
The flap 4 with aileron on the upstream side is folded and closed, and the flap 4 with aileron on the downstream side of the wind 12 on the left side is fixed in an open state. Further, the rotor 2 is rotationally driven by a rotating device 9 in the direction indicated by an arrow A in the figure.

In this state, the wind 12 is directed to the aileron flap 4 on the right side of the figure.
, the airflow is separated into an airflow 12a along the surface Sa of the rigid sail S and an airflow 12b along the back surface sb.

The airflow 12b along the back surface sb of the rigid sail S flows at a small speed, but is further decelerated by the rotor 2 on the left side of the figure, and is further decelerated by the support member 3 and the flap with aileron 4 on the left side of the figure. It is guided and flows out from the rigid sail S toward the lower left in the figure. At this time, a part of the airflow 12b passes through the gap between the support member 3 and the aileron 4b and the gap between the aileron 4b and the flap 4a, and passes through the rigid sail S.
An air flow 12b' is blown out onto the surface Sa.

In addition, the airflow 12a along the surface Sa of the rigid sail S flows at a considerably high speed, but the deceleration flow within the boundary layer is accelerated by the two rotors 2゜2, and the thickness of the boundary layer is reduced. It flows toward the left aileron flap 4. Then, the air flow 12a accelerates the deceleration flow within the boundary layer by the air flow 12b', further reduces the thickness of the boundary layer, flows out from the rigid sail S, and merges with the air flow 12b.

In this way, the rotor 2 and the flap with aileron 4 perform boundary layer control on the surface of the rigid sail S, and the air flow 12a flows along the surface Sa of the rigid sail S at an extremely high speed without causing separation. flows. Note that since the speed of the air flow 12b is low, separation does not occur on the back surface sb of the rigid sail S.

In this way, the air iX 12 a along the surface Sa of the rigid sail S
Based on the speed difference between and the air flow 12b along the back surface sb,
A large pressure difference occurs between the above-mentioned front surface Sa and back surface sb. This pressure difference generates a large lift force in the rigid sail S.

In addition, when the lift generated in the rigid sail S cannot be effectively used as thrust for the ship, or when the wind is extremely strong as during a storm and there is a risk of the ship capsizing, it is necessary to As the aileron flap 4.4 is folded and closed, the rigid sail S is
The rigid sail S is driven and rotated, and is fixed in a state almost parallel to the direction of the wind flowing into the rigid sail S. thus,
This device maintains a state in which the wind force acting on the rigid sail S is minimized, suppressing an increase in hull resistance due to the wind, and preventing the ship from capsizing.

As described above, according to the rigid sail device with the rotor and flaps of this embodiment, even if the angle of attack of the rigid sail S is set to be considerably large with respect to the wind flowing into the rigid sail S, the wing surface of the rigid sail S is Boundary layer control is performed by the rotor 2 and the flap 4 with aileron, and the airflow along the wing surface of the rigid sail S flows smoothly without causing separation. Therefore, an extremely large lift force is generated in the rigid sail S without stalling due to separation of airflow. The component of this lift force in the direction in which the ship is traveling is used as the propulsion force for the ship.

〔Effect of the invention〕

As detailed above, according to the rigid sail device with a rotor and flaps of the present invention, rotors are installed on both sides of a rigid main wing, and flaps with aileron are installed next to the rotors, With a simple structure in which the flap with aileron is foldable, even if the angle of attack of the rigid sail is set to a fairly large angle with respect to the wind direction, the wing surface of the rigid sail is bounded by the rotor and the flap with aileron. Layer control allows the airflow along the rigid sail to flow smoothly without separation. For this reason, the rigid sail of this device prevents stalling due to air flow separation and provides an extremely large lift force.If this component of lift force in the direction of the ship's movement is used as the ship's thrust, the ship's fuel consumption can be significantly reduced. This has the effect of saving money.

[Brief explanation of drawings]

1 to 4 show a rigid sail device with a rotor and a flap as an embodiment of the present invention, FIG. 1 is a side view thereof, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, Figures 3 and 4 are horizontal sectional views showing the effect. 1. Main wing, 2.. Rotor, 3.. Support material, 4.. Flap with aileron, 4a.. Flap, 4b.. Aileron, 5.
... End plate, 6. Mast, 7. Turning device, 8. Flap turning device, 9. Rotating device, 10. Lower end plate, 11.
・・Upper end plate, 12・・Wind, 12m・・Air flow along the surface of the rigid sail, 12b・・Air flow along the back surface of the rigid sail, 1
2b'... Airflow, 13... Hull, S... Rigid sail, S
a: Surface of rigid sail, sb: Back surface of rigid sail. Sub-Agent Patent Attorney Yoshihiko Iinuma Figure 1

Claims (1)

[Claims] A rotor is installed on each side of the rigid main wing, and a flap with an aileron is installed next to the rotor.
A rigid sail device with a rotor and a flap, characterized in that the flap with the aileron is configured to be foldable.