JPS5941031B2 - Device that converts fluid movement energy into rotational energy - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that converts the movement energy of a fluid into rotational energy, and more specifically, it relates to a device that converts the movement energy of a fluid into rotational energy, and more specifically, a device that converts the movement energy of a fluid into rotational energy. The present invention relates to a device that converts the movement energy of a fluid into rotational energy.

2. Description of the Related Art Devices have been used that rotate an impeller using a flow of natural or artificially produced fluid such as water, air, or steam and convert it into mechanical rotational force.

However, conventional devices of this type have been known to have problems in terms of efficiency and maintenance.

This is because efficiency and ease of maintenance are usually in a contradictory relationship and it is technically difficult to satisfy both.

However, today, when the depletion of petroleum resources is a real concern, the importance of semi-permanent energy sources such as wind and water is increasing more than ever, and both efficiency and ease of maintenance are satisfactory. It was hoped that energy conversion equipment would be developed.

The main object of the present invention is to provide a novel and useful apparatus for converting fluid movement energy into rotational energy that rotates quickly and has a large torque.

Another object of the present invention is to prevent at least a portion of the fluid from being converted into rotational energy (by automatically discharging it outside the device for maintenance purposes) when there is movement of fluid in excess of what is necessary to obtain rotational force. It is an object of the present invention to provide a novel and useful device that facilitates the conversion of fluid movement energy into rotational energy and is highly safe.

Still another object of the present invention is to provide a new and useful device for converting fluid movement energy into rotational energy with less vibrational noise.

Still another object of the present invention is to provide a new and useful device for converting fluid movement energy into rotational energy that is lightweight, simple, and less prone to failure (as well as cost advantageous).

Although other objects of the present invention are not explicitly stated herein, those skilled in the art will be able to easily infer them from the detailed description of the present invention based on the following embodiments.

The present invention will be described in detail below with reference to drawings of embodiments.

FIG. 1 shows an overall view of an embodiment in which a device for converting fluid movement energy into rotational energy according to the present invention is used as a horizontal axis wind turbine.

In the figure, number 1 is a base.

The base 1 consists of a cylindrical outer peripheral part 2 and a central part 3 that is one step higher than the outer peripheral part 2, and the outer peripheral part 2 and the central part 3 have eaves 4, 5 extending outward at the upper part. They each have sex.

A framework 6 is provided on the top of the base 1.

The framework 6 is rotatable or rotatable around a power transmission shaft 80 whose lower portion vertically penetrates the center of the base 1 and passes through the horizontal bar γ in front of the framework 6.

In case a load is applied to the front or rear part of the framework 6 to lift the framework 6 upwards, and in order to ensure smooth pivoting or rotation of the framework 6, upper and lower rollers (not shown) are installed on the eaves 5 at the bottom of the horizontal beam γ. from both sides, and also at the bottom of the vertical bar 9.
As shown in the figure and FIG.
, 11.

A central shaft 12 configured to transmit rotation to the power transmission shaft 8 is rotatably disposed in the upper part of the framework 6, and a rotating body 13 is fixed to the central shaft 12.

Although the rotating body 13 is shown to have a generally cylindrical shape as a whole in the figure, it is not limited to this.

It may be in the shape of a trumpet tube with a wider front end, a tapered tube shape with a larger diameter in the front end, or other shapes.

A chamber 14 is formed around the central axis 12 inside the rotating body 13 .

The chamber 14 is open at the front, surrounded by four blades 15 disposed intermittently in the outer peripheral direction, and partitioned from the outside by a bottom plate 16 at the rear.

The chamber 14 also communicates with the outside through a gap 17 formed between each adjacent blade 150.

The number of blades 15 is not limited to four, but is made of a curved plate having a substantially arc-shaped cross section as shown in FIG.

Each blade 15 is arranged at a substantially symmetrical position with respect to the central axis 12, and extends forward from near the bottom plate 16 substantially parallel to the central axis 12.

The blades 15 intermittently extend forward from near the bottom plate 16 so as to surround the central axis 12 near the outer periphery of the rotary body 13, and have exit angles facing backward in the direction of rotation of the rotary body 130.

The shape of the rotating body 130 is such that it moves inward as it advances in the rotational direction.

The cross section of each blade 15 can be variously considered, such as a spiral arc shape or an elliptical arc shape, but even if it is substantially flat, it is considered that a blade that causes the rotating body 13 to rotate as described below is within the scope of the claims of the present invention. should be understood.

Note that numbers 1B and 19 in the figure are an outer band and an inner band for reinforcing the outermost and innermost ends of each blade 15, respectively.

The outer band 18 and the inner band 19 are fixed to the central shaft 12 by support rods 20 arranged in a cross shape.

The bottom plate 16 is formed into a flat plate shape as a whole.

As shown in FIGS. 4 to 1, the fixed part 21 and the movable part 22
Contains.

In FIGS. 4 and 5, five fixing parts 21 are arranged vertically in parallel at equal intervals, dividing the bottom plate 16 into four pieces in the diameter direction.

A movable part 22 having a size and shape that completely covers the gap between the fixed parts 21 is provided between each fixed part 21.

Each movable part 22 is attached to an adjacent outer fixed part 21 by a hinge 23 with a spring so as to be rotatable outward.

Normally, the space between each fixed part is completely covered or closed, but when the wind gets stronger and the air pressure inside the chamber 14 increases, it opens rearward, allowing the chamber 14 to communicate with the rear outside.

The opening and closing of this movable part 22 is performed in relation to the strength of the wind.

This situation is clearly shown in FIG.

FIG. 6 shows an example of a variation of the bottom plate in a cross section similar to that of FIG. 5.

In the example of FIG. 5, a hinge 23 with a spring is used, and the relationship between the opening and closing of the movable part 22 and the strength of the wind is left solely to the strength of the spring of the hinge 23, whereas in the case of FIG.
The movable part 22 mounted so as to be rotatable outward at 4 is pressed from behind by a spring 25 through a single flat plate 26, and a knob 27 is screwed onto the central shaft 12 supporting the spring 25. By turning , the degree of opening and closing of the movable part 22 can be adjusted.

In this case, the hinge 24 may or may not be provided with a spring.

Similar to FIG. 6, FIG. 7 shows an example of a change in the bottom plate.

A disc-shaped movable part 22 covers the space between the annular fixed part 21 and the central shaft 22, and the movable part 22 is supported by a spring 25 supported by a knob 27 that is screwed into the central shaft 12. I'm under pressure.

In this case, the fixed part 22 moves in the direction of the central axis 12 and moves into the chamber 1.
The air inside 4 is allowed to escape to the rear, and the degree of opening and closing can be adjusted with a knob 27, as in the case of FIG.

Although not shown, the bottom plate is configured with a fixed part extending radially outward from the vicinity of the central axis and fixed to the rotating body, and a movable part having the same number as the fixed part and having a shape that covers the gap between the fixed parts,
By rotatably attaching the rotation direction side of the movable part to the fixed part with a hinge with a spring, it is possible to contribute to the rotation of the rotating body as well as countermeasures against strong winds.

There are various other possible changes to the bottom plate.

FIG. 8 shows the wind turbine shown in FIG. 1, with a roof 28 provided on the frame 6 to protect against rain, snow, sunlight, etc.

This structure is characterized in that wind can pass through between the stacked roof panels 290.

A wind turbine configured in this manner always rotates at high speed and with strong torque, with its front facing the direction of the wind when there is a certain amount of wind force.

To explain this in detail, in Fig. 1 or Fig. 8, the frame 6
is rotatably or rotatably mounted on the base at the front about the power transmission shaft 8, so each blade 15 and the bottom plate 16
is pushed by the wind so that its front side faces the direction of the wind.

This following of the wind direction becomes even more remarkable when there is a tail fin 30 shown by two-dot chain lines in FIGS. 1 and 8.

Then, the wind blows into the chamber 14 of the rotating body 13 facing the direction of the wind.

The wind blown into the chamber 14 collides with the bottom plate 16 or is directly guided by each blade 15 and is discharged toward the outer periphery as indicated by the arrows indicated by the frame lines in FIG.

The wind that collides with the bottom plate 16 and the wind that flows in from the front opening of the chamber 14 mix, increase in density, and are blown out toward the outer circumference at high speed.

At this time, it is thought that the reaction force, lift force, and/or resistance force based on the jet of air act on each blade 15 in the direction of the arrow shown by the solid line in FIG. 3, but the rotating body 13 is Rotates powerfully at high speed in the direction of the arrow.

Therefore, it is possible to obtain a windmill suitable for use as a large power generation windmill, a water pumping windmill, or the like.

When extracting power, the power transmission shaft may rotate 80 times.

An example is the use of a power generating room in the base 1.

The wind blows the area of the bottom plate 16 of the rotating body 13 and the movable part 22.
When the strength of each spring acting on the spring exceeds a value determined in relation to the strength of each spring, each movable part 22 rotates or moves as shown by the two-dot chain line in FIGS. 5 to 7, and the chamber 14 is An air escape port is formed in communication with the rear outside, and wind in excess of that necessary for rotating the windmill is discharged to the outside without being converted into rotational energy.

Therefore, maintenance becomes extremely easy, accidents are reduced, and a highly safe wind turbine that can be installed in areas where typhoons occur frequently can be obtained.

In addition, since the structure is simple and the rotating body 13 is substantially symmetrical with respect to the central axis 12, it is possible to obtain a wind turbine that generates less vibration noise, has fewer failures, is lightweight, and is inexpensive.

In the above explanation, only the wind turbine was explained, but the same effects as the above-mentioned wind turbine can be expected from water turbines, turbines using various fluids, and the like.

Therefore, it goes without saying that the scope of the present invention extends to those devices as well.

As described above, the present invention is an extremely effective device for converting fluid movement energy into rotational energy.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of a wind turbine, Fig. 2 is a partially sectional side view of the section ■ in Fig. 1, and Fig. 3 is a front view of the rotating body. Figure 4 is a front view of the bottom plate, Figure 5 is a sectional view taken along the line V-V in Figure 4, Figure 6 is a sectional view of a variation of the bottom plate, Figure 7 is a sectional view of a variation of the bottom plate, and Figure 8 is a sectional view of a variation of the bottom plate. is a perspective view of a windmill with a roof. Explanation of symbols: 1...Base, 2...Outer periphery, Total...Central part, 4, 5...Eave,
6...Framework, 7...Horizontal beam, 8...
...Power transmission shaft, 9...Vertical beam, 10゜11...
...Roller, 12...Central shaft, 13...
...Rotating body, 14...Chamber, 15...
・Blade, 16... Bottom plate, 17... Gap, 18... Outer band, 19... Inner band, 20... Support rod , 21... Fixed part, 22... Movable part, 23, 24...
・Hinge, 25...Spring, 26...
・Flat plate, 27...knob, 28...roof, 29...roof plate, 30...tail wing.

Claims (1)

[Claims] 1. In a device for obtaining mechanical rotational energy by rotating a rotating body using a moving fluid, the rotating body is located in a direction along a central axis and is rotatable around the central axis, and inside the rotating body there is a A plurality of tubes are opened at the bottom, the rear is partitioned from the outside by a bottom plate, the circumferential direction extends forward intermittently from near the bottom plate approximately parallel to the central axis, and the exit angle faces backward in the direction of rotation of the rotating body. It includes a chamber surrounded by blades, each of which communicates with the outside through a gap between adjacent blades, and the bottom plate has a chamber that opens and closes in relation to the flow of fluid to direct the fluid inside the chamber to the outside. A device for converting fluid movement energy into rotational energy, characterized by including a means for releasing it.