JP2927391B2 - Ship with propulsion device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ship equipped with a propulsion device, and more particularly to a ship provided with a propulsion device provided with rotating blades curved about a rotation axis.

[0002]

2. Description of the Related Art A conventional ship moves horizontally with respect to the water surface by means of a screw rotating underwater. Also, as a ship capable of moving at high speed with reduced water resistance, a hydrofoil ship provided with a hydrofoil in front of the bottom of the ship, and a hovercraft that takes air into the hull and blows out from the bottom of the ship to move are also provided.

[0003]

SUMMARY OF THE INVENTION In a hydrofoil ship,
Part of the ship's bottom was underwater, and there was no way to eliminate the resistance of the bottom to the water. Hovercraft, on the other hand, allow the bottom of the boat to float above the surface of the water, thus completely eliminating the resistance of the bottom to the water. However, the air that created the propulsion force was blown around the ship to generate wind, which caused annoying around the ship.

[0004] The problem to be solved by the present invention is to provide a ship that can be moved by a propulsion device that does not disturb the ship around the ship by completely eliminating the resistance of the water received by the ship bottom.

[0005]

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems. That is, the ship with a propulsion device according to the first aspect of the present invention is a ship body (10) that moves on water, and is attached to the ship body (10) and located underwater to move the ship body (10). A propulsion device (20), the propulsion device (20) has a rotating wing (22) rotatably supported by a rotating shaft (21), and the rotating shaft (22) is Position the front end in the direction to move (10), the other end diagonally downward from the front end, and the wings of the rotary wings (22) are curved into a hat-shape around the rotation axis (21). The cross section perpendicular to the direction of curvature of the blades of the rotor (22) is designed so that the profile of the propulsion side of the ship body (10) is longer than the profile of the opposite side. Form.

Further, the propulsion device (20) has a rotating blade (22) and a second rotating shaft (31) on the same axis as the rotating shaft (21), which is opposite to the rotating blade (22). Rotating second rotor
(30), and the wing of the second rotor (30) has a second rotary shaft (3
The cross section perpendicular to the direction of curvature of the wings of the second rotor (30) is formed as a shape curved around the center of the ship (10).
Is formed so that the contour on the side to be driven is longer than the contour on the opposite side .

[0007]

The vehicle with the fluid propulsion device according to the first aspect of the invention has the following operations. The propulsion device (20) is operated to rotate the rotary wing (22) about the rotary shaft (21).
Then, the pressure of the fluid on the side of the ship body (10) to be propelled becomes larger around the rotary wing (22) than on the opposite side. Then, the fluid moves from the higher pressure to the lower pressure. The reaction of the movement of the fluid is transmitted to the ship body (10) through the rotating shaft (21), and as a result, the ship body (10) is propelled forward while being pushed upward. If the bottom of the ship body (10) is pushed upward until the bottom of the ship is higher than the water surface, there is no water resistance to the bottom of the ship.

Further , the propulsion device (20) is operated, and the rotating shaft (2
Rotate the rotor (22) about 1), and at the same time,
The second rotor (30) is rotated about (31). Rotary wings (22)
And around the second rotor (30), the pressure of the fluid on the side of the ship body (10) to be propelled is greater than on the opposite side. Then, the fluid moves from the higher pressure to the lower pressure, and the boat body (10) is propelled as described above.

On the other hand, with the rotation of the rotor (22) and the second rotor (30), each generates a moment of inertia with respect to the ship body. However, the moment of inertia generated by the rotor (22) is canceled by the moment of inertia generated by the second rotor (30). Therefore, the moment of inertia is
There is no effect on the promotion of 0).

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to embodiments and drawings. The drawings used here are FIGS. 1 to 4. FIG. 1 is a conceptual diagram showing an embodiment of the present invention. FIG. 2 is a partially enlarged side view of one embodiment of the present invention. FIG. 3 is a partially enlarged front view of one embodiment of the present invention. FIG. 4 is a diagram showing a cross section shown in FIG.

A ship with a propulsion device shown in FIG. 1 is an embodiment according to the second aspect of the present invention. The ship body 10 moves on water, and is attached to the ship body 10 and located underwater. 10 and a propulsion device 20 for moving the same. Although not shown in the drawing, two propulsion devices 20 are provided on the bottom of the ship body 10 at the front and rear. As shown in FIG. 2, each propulsion device 20 has a first rotating blade 22 rotatably supported by a first rotating shaft 21 and a second rotating blade 22 on the same axis as the first rotating shaft 21. It has a second rotor 30 that rotates in the opposite direction to the first rotor 22 on the shaft 31. As shown in FIG. 1, the first rotating shaft 21 and the second rotating shaft 31 have a front end in the direction in which the ship body 10 is moved, and the other end positioned diagonally below the front end.

When the outputs of the four propulsion devices 20 are the same, a quadrangular center of gravity formed by connecting the intersections of the respective rotating shafts 21 of the four propulsion devices 20 with the bottom of the ship body 10 is defined as a vertical point. When extended in the direction, each propulsion device 2 is moved so that the center of gravity of the ship main body 10 exists on the extension.
0 is attached to the bottom of the ship body 10. The blade shape of the first rotor 22 and the second rotor 30 is the same as that of the first rotary shaft 21.
And the second rotary wing 30 as a center to be formed in a shape of an umbrella bone. In addition, the first rotor 22 and the second rotor 3
As shown in FIG. 3, both ends of 0 are connected to ring-shaped ring connecting pieces 23 and 32 to prevent the first rotor 22 and the second rotor 30 from spreading due to the moment of inertia generated during rotation. I'm preventing.

The first rotor 22 and the second rotor 30 have
As shown in FIG. 4, the cross-sectional shape perpendicular to the bending direction is formed such that the contour on the propulsion side of the ship body 10 is longer than the contour on the opposite side. Also, as shown in FIG.
In addition, the width of the first rotor 22 and the second rotor 30 is the rotation axis.
It is almost the same width from to the center. Subsequently, the operation of the above-described embodiment will be described. First, the propulsion device 20 is operated to rotate the first rotor 22 around the first rotation shaft 21, and at the same time, to rotate the second rotor 3 around the second rotation shaft 31.
Rotate 0.

Around the first rotor blades 22 and the second rotor blades 30, the pressure of the fluid on the side of the ship body 10 to be propelled is greater than on the opposite side. Then, the fluid moves from the higher pressure to the lower pressure. The reaction of the movement of the fluid is transmitted to the ship main body 10 through the first rotary shaft 21 and the second rotary wing 30, and as a result, the ship main body 10 is propelled forward while being pushed upward. If the bottom of the ship body 10 is pushed upward until the bottom of the ship becomes higher than the water surface, the resistance of the water received by the bottom of the ship is completely eliminated.

To turn the ship main body 10 to the right, the output of two of the four propulsion devices 20 located on the right side is increased, or the output of the two located on the left side is decreased. To turn to the left, two outputs located on the left side of the four propulsion devices 20 are increased, or two outputs located on the right side are decreased. By the way, as the first rotor 22 and the second rotor 30 rotate, each generates a moment of inertia. However, the inertia moment generated by the first rotor 22 is canceled by the inertia moment generated by the second rotor 30. Therefore, the moment of inertia is
Has no effect on the promotion of In addition, when the ends of the first and second rotating blades 22 and 30 are rotated, an inertia moment is generated. However, a ring-like shape connected to the ends of the first and second rotating blades 22 and 30 is generated. Ring connecting pieces 23, 32 suppress the force of spreading.

Next, the effects of the above embodiment will be described. According to the above-described embodiment, the ship main body 10 could be moved by the propulsion device 20 that is moved by the rotation of the first rotor 22 and the second rotor 30. Also, the first rotor 2
The second and the second rotors 30 could be moved by the propulsion device 20 having a small influence of the moment caused by the rotation of the second rotor 30.

Next, a variation of the above embodiment will be described. First rotor 22 or second rotor 3
Moment of inertia generated by 0 affects propulsion
If it is too small to affect
Is also good. In addition, about the device which retreats the ship main body 10
May use a reverse propulsion device, for example a screw.
Either the first rotor 22 or the second rotor 30
One of the cross-sectional shapes is opposite to the one that obtains forward thrust.
It may be formed and rotated.

In the above embodiment, four propulsion devices 20 have been described. However, it should be noted that it is desired that the number and output of the propulsion devices 20 be varied depending on the type, ie, size and weight, of the ship body 10. Not even.

[0019]

According to the first aspect of the present invention, a ship bottom is provided.
Eliminates the resistance of the water that it receives
Do not create annoying winds around
The effect of being able to provide a ship that moves
There is. In particular, the moment associated with the rotation of the rotor
Providing ships that move with low-impact propulsion devices
This has the effect of being able to do it.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the present invention.

FIG. 2 is a partially enlarged side view of one embodiment of the present invention.

FIG. 3 is a partially enlarged front view of one embodiment of the present invention.

FIG. 4 is a diagram showing a cross section shown in FIG. 3;

[Explanation of symbols]

Reference Signs List 10 ship body 20 propulsion device 21 first rotating shaft 22 first rotating blade 23 ring connecting piece 30 second rotating blade 31 second rotating shaft 32 ring connecting piece

Claims (1)

(57) [Claims] 1. A ship body moving on water and a ship body attached to the ship body.
And is located underwater to move the ship's body.
A propulsion device, wherein the propulsion device includes a rotary wing rotatably supported on a rotary shaft.
The rotation shaft has a front end in a direction in which the ship body is moved.
The other end is positioned diagonally downward from the front end and rotated.
The wings of the wings are curved in the shape of a hat
The body is formed as an arc and is perpendicular to the direction of curvature of the rotor blade.
The cross-sectional shape of the ship's body
The propulsion device is formed so as to be longer than the contour on the opposite side, and the propulsion unit has the same axis
Rotate in the opposite direction from the rotor at the second axis of rotation on the line
A second rotor, the blades of which are curved about a second rotation axis;
In the direction of curvature of the second rotor blade.
For a straight cross-sectional shape, the contour on the propulsion side of the ship body is better
With propulsion device formed to be longer than the opposite contour line
ship.