JPS5891376A - Wind turbine - Google Patents

Abstract

PURPOSE:To enable to make an efficient use of the energy of wind force through combined use of a main fan having a wind collecting function and a subsidiary fan having a rotation promoting function. CONSTITUTION:When wind blows in a direction (f) to a wind turbine as shown in the drawing, air flows in a direction shown by arrows in the drawing, so that a lift is acted to a main fan 1 in a direction F1 by the wind pressure and a turning force is imparted to a shaft 3. At the same time, air flow is turned toward a subsidiary fan 2 located obliquely rearwards of the main fan 1 since the main fan 1 functions like sails of a sailing ship. On the other hand, a lift is also acted to the subsidiary fan 2 in a direction F and a shaft turning force is produced. However, the subsidiary fan 2 has a cross section in the form of a Clark type streamline, the velocity of air flow through an outwardly curved section of the subsidiary fan 2 is increased by the air collected by the wind collecting function of the main fan 1, and the shaft turning force is increased. Thus, the energy possessed by the wind can be utilized effectively.

Description

[Detailed description of the invention] This invention is a power source powered by wind power. rotor blade of the aircraft (hereinafter referred to as turbine blur Nα2) From the windmill of Lang's windmill, the small toy Even down to the ``pinwheel'' of the ingredients, and The shape of the rotor is also gyro mill type, sabot There are various types such as Nius shape and Griuse shape. is used.

Especially wind turbines are the latest energy - Alternative energy as crisis calls and ambitions rise It has attracted attention as a part of the It is common knowledge that research and development is being carried out. That's right.

However, unlike industrial steam turbines, etc., wind turbines are not only affected by weather conditions because they use natural forces, but also have drawbacks such as low mechanical efficiency. There were drawbacks such as having to carefully examine the blade from above and increasing the diameter of the blade in order to increase the output, which required the installation of a large mount.

In contrast to these conventional methods, the present invention has the following advantages: Nα3 Utilizes wind power as effectively as possible, making it compact Moreover, it can be used as a prime mover even in weak winds. It is designed so that it can be used.

The present invention will be explained below with reference to the drawings.

FIG. 1 is a front view illustrating the configuration of a wind turbine blade according to the present invention, and FIG. 2 is a side view.

The halachin part shows the cross-sectional part in Fig. 1.

Note that 1 is a main use for turbine blades, and 2 is an auxiliary agent. Reference numeral 3 denotes a freely rotatable shaft, on which two or more pairs of blades, each consisting of the main agent 1 and the auxiliary agent 2, are arranged and assembled with equal dynamic balance all around the circumference. Figure 1 shows the case where four sets of blades are installed.

Note that the arrow f in Fig. 2 indicates the wind line, and the direction of the arrow indicates the flow direction of the wind. Further, F] indicates the lift vector of the main agent, and F2 indicates the lift vector of the auxiliary agent.

Nα4 In the wind turbine configured as above, the width of the main blade is made wide so as to show a larger area than the auxiliary blade when viewed from the front, and the blade is slightly bulged in the leeward direction, and As shown in the sectional view, it is installed by twisting it so that it is inclined at an appropriate angle with respect to the shaft 3.

On the other hand, the secondary agent 2 is installed in a position set back to the leeward side from the main blade, and the cross section of the blade is shaped like a Clark, which resembles the cross-sectional shape of an aircraft wing, giving it a streamlined bulge, which makes it easier to rotate. The members on the direction side are assembled in such a way that they overlap and overlap so that they do not come into contact with the main member.

When the wind blows in the direction of the arrow f in the wind turbine configured as above, the wind flows in the direction of the arrow, and the main effect is wind pressure, which causes lift in the direction of F].
That is, it applies a rotational force to the shaft 3, and also causes the wind to flow diagonally toward the rear side, like the sails of a sailboat. That is, No. 5 It produces a wind collecting effect.

On the other hand, do the same for the adjuvant in the direction of F. gives lift to and generates rotational force However, the cross section has a Clark-shaped streamline. In order to The speed of the wind flowing through the swollen part of the adjunct along with the wind The speed was further accelerated, and this was Bernoulli. According to the theorem of It acts as a force-increasing effect.

As explained above, it not only makes use of the wind power from the entire surface of the turbine without wasting it, but also gives the main wind a collecting function at the same time as it rotates, and the secondary agent collects and reuses the wind that has moved once in the main wind along with the rotational force. Moreover, it is extremely efficient in its two-stage utilization that provides a rotation assisting function based on the Berno 4 I theorem.

In other words, the wind turbine of the present invention is capable of effectively utilizing wind energy by synthesizing a main agent having a wind collection function and an auxiliary agent having a rotation assisting effect, so that they mutually enhance each other's functions. It is distinctive in that it is

Therefore, traditional axial wind turbines turbine blade diameter than the bin It does not need to be large, or it can be used in areas with weak winds. It can be used as a prime mover even when The mount needs to be small, making the device economical. Easy to manufacture, and the overall size is small even in strong winds. Therefore, the corridor is advantageous in terms of wind pressure resistance. Extremely important from the perspective of wind energy utilization This can provide an effective means.

[Brief explanation of drawings]

Figure 1: Front view of the embodiment of the present invention Figure 2: Side view of Figure 1 1: Main use 2: Adjunct 3: Rotating shaft Patent applicant Masao Yasugata procedural amendment November 25, 1982 Japan (Patent Office Examiner)■, Small case indication 1982 Patent application No. 188658 Article designation goods related to the design Classification of goods Class 3, Person making the amendment Relationship with the case Applicant 5, Subject of the amendment Full text type correction - page 425 as shown in the attached sheet

Claims (1)

[Claims] A main door having a wide blade and a width fan having a narrower blade than the main door are arranged coaxially with each other, with the sub layer being rearward from the main door, and A wind cutter characterized in that the blade member on the rotational direction side of the sub-layer is arranged so as to move forward of the blade member on the rear side of the main door blade.