WO2005015009A1

WO2005015009A1 - Propeller type flowing force prime mover and blade thereof

Info

Publication number: WO2005015009A1
Application number: PCT/JP2004/006785
Authority: WO
Inventors: Masaji Haneda
Original assignee: Ntt Data Ex Techno Corporation
Priority date: 2003-08-11
Filing date: 2004-05-13
Publication date: 2005-02-17
Also published as: JP2005061233A

Abstract

A propeller type flowing force prime mover (1) with novel blade shape allowing high rotational drive force and high rotational speed irrespective of whether the speed of fluid is high or low and capable of securing safety against high speed fluid, wherein a rotating shaft (2) faces a fluid flow direction and blades (5) are generally radially fitted to the rotating shaft (2). The sections of the blades (5) are formed in a J-shape, the outsides (5a) of the J-shaped curved parts of the blades are used as the leading edges of the blades in the blade rotating direction and the insides (5b) of the J-shaped long piece parts of the blades are used as blade surfaces, and recessed parts (5c) on the insides of the curved parts are used as flow force receiving parts.

Description

Propeller type hydraulic motor and its blade

Technical field

The present invention relates to a propeller-type hydraulic motor that drives a wind power generator or a hydroelectric generator, and a blade thereof.

Light

1

Background Art Yarn Generally, the rotational driving force of a propeller-type fluid prime mover is proportional to the flow rate per unit time passing through the area of a circle whose radius of rotation is the tip of the blade, but the fluid flowing near the rotating shaft rotates. It hardly contributes to the generation of driving force.

A flow that guides the fluid flowing near the rotating shaft to the outer peripheral side. A propeller-type fluid force that increases the rotational driving force by arranging the conducting means upstream of the propeller-type fluid motor and guiding the fluid to the outer peripheral side. A prime mover is known (for example, see Patent Document 1).

Patent Document 1

Japanese Patent Application Laid-Open No. 2003-8332 33 (Page 4, Figure 2)

The conventional technology described above increases the rotational driving force of a propeller-type fluid prime mover, but the blade employs a conventional type that generates a driving force at an angle of attack, and the generated rotational drive Power and rotational speed were naturally limited.

The present invention has been made in view of the above, and realizes a high rotation driving force and a high rotation speed irrespective of a low speed and a high speed of a fluid, and furthermore, a new blade-shaped propeller type capable of ensuring safety against a high speed fluid. The purpose is to obtain a hydraulic motor.

Disclosure of the invention A propeller-type fluid prime mover according to the present invention is a propeller-type fluid prime mover in which a rotating shaft faces a fluid flow direction and a blade is attached to the rotating shaft in a substantially radial manner. The outer side of the J-shaped curved portion is a front edge in the blade rotation direction, the inner side of the J-shaped long piece is a blade surface, and the concave portion inside the curved portion is a fluid force receiving portion.

In the propeller type hydraulic motor according to the present invention, the cross section of the blade is formed in a J-shape, the outer side of the J-shaped curved portion is defined as the blade rotation direction front edge, and the inner side of the J-shaped long piece is defined as the blade surface. Since the concave part inside the curved part is used as the fluid force receiving part, the fluid flowing from the front and the rotating force of the blade due to the action of the angle of attack j8 and the fluid flowing from the front and the action of the concave part of the J-shaped curved part Rotational force is synthesized, and high rotational force and high-speed rotation can be obtained even with a very slow fluid.

In the propeller type hydraulic motor according to the next invention, the concave portion inside the curved portion is used as a fluid force receiving portion, and the flow channel receives rotational force by a fluid flowing in a radial direction.

In a propeller type hydraulic motor according to the next invention, the angle of attack of the blade surface is substantially 0 °.

A propeller-type fluid prime mover according to the next invention is a propeller-type hydraulic prime mover in which a rotating shaft faces a fluid flow direction, and a blade is attached to the rotating shaft in a substantially radial manner. The outside of the U-shaped curved portion is the leading edge in the blade rotation direction, the outside of the long piece on the upstream side of the fluid is the blade surface, and the concave portion inside the U-shape receives the rotational force by the fluid flowing in the radial direction. It is a channel.

In the propeller type hydraulic motor according to the present invention, the cross section of the blade is formed in a U-shape, the outside of the U-shaped curved portion is defined as the blade rotation direction front edge, and the outside of the upstream long piece is defined as the blade surface. The concave portion inside the U-shape is a channel that receives rotational force from the fluid flowing in the radial direction, so the concave portion is deeper than the J-shaped blade, so that the fluid flow in the radial direction does not escape until the fluid reaches the blade tip It can sink and absorb rotational force from the fluid. In the propeller type hydraulic motor according to the next invention, the base and the tip of the concave portion of the blade are open.

In the propeller type hydraulic motor according to the next invention, the base of the concave portion of the blade is closed.

In a propeller type hydraulic motor according to the next invention, the blade is elongated and straight, and a tip end of the concave portion is closed.

In the propeller type hydraulic motor according to the next invention, the blade is bent rearward in the rotational direction from the base to the tip.

In the propeller-type hydraulic motor according to the next invention, the blade is smoothly curved rearward in the rotational direction from the base to the tip.

In the propeller type hydraulic motor according to the next invention, the width of the blade is gradually reduced from the base to the front end.

In a propeller-type hydraulic motor according to the next invention, the blade is formed by flat plate pressing.

In the propeller type hydraulic motor according to the next invention, the blade is attached to the rotating shaft such that the axis of the base of the blade passes through the center of the rotating shaft.

In the propeller type hydraulic motor according to the next invention, the blade is attached to the rotating shaft so that the axis of the base of the blade is offset from the center of the rotating shaft so as to pass forward in the rotating direction.

A propeller-type hydraulic prime mover according to the next invention is provided upstream of the propeller-type hydraulic prime mover, and has a flow guiding means for guiding a fluid flowing near a rotating shaft to an outer peripheral side.

In a propeller type hydraulic motor according to the next invention, the fluid guiding means is formed in a substantially conical shape, and has a distal end located upstream on a rotation axis.

A propeller type hydraulic motor according to the next invention is located on the downstream side of the blade, reverses the fluid flowing near the rotation axis and passing inside the base of the blade, and extends to the base of the blade on the outer peripheral side. It is provided with a fluid guiding means for guiding. In the propeller-type hydraulic prime mover according to the next invention, the fluid guiding means is a hollow hemispherical fluid catch.

In the propeller type hydraulic motor according to the next invention, the fluid catch is attached to the rotating shaft via a spoke, and supports a base of the blade. In the propeller type hydraulic motor according to the next invention, the fluid catch may include opening and closing means for opening and closing according to the flow velocity of the fluid to release the fluid from the fluid catch.

In the propeller type hydraulic motor according to the next invention, the opening / closing means is provided at a bottom opening of the fluid catch, and is normally closed by being urged in a closing direction by a spring mechanism, and has a predetermined fluid pressure based on a flow rate. Therefore, it is a petal-like on-off valve that opens against the spring force.

A propeller-type fluid prime mover according to the next invention is disposed on the upstream side of the propeller-type hydraulic prime mover, and fluid guide means for guiding a fluid flowing in a rotational axis direction toward the blade in a direction following the blade rotation direction. It is provided with.

A propeller-type hydraulic prime mover according to the next invention is disposed on the upstream side of the propeller-type hydraulic prime mover, follows a fluid flowing in a rotational axis direction toward the blade in a blade rotational direction, and within a blade radius. It is provided with a flow guiding means for guiding to press down.

In the propeller type hydraulic motor according to the next invention, the fluid guide means is arranged symmetrically with respect to the axis of force so as to be along the rotation axis, and the downstream side has a curved portion curved in the blade rotation direction. It is a pair of # 1 conductive plates. '

In the propeller type hydraulic motor according to the next invention, the fluid guide means is radially arranged symmetrically with respect to the force axis so as to be along the rotation axis, and the downstream side is curved in the blade rotation direction, and the downstream side. The outer portion is a pair of fluid guide plates having a curved portion curved inward in the blade rotation direction.

A propeller type hydraulic motor according to the next invention is provided with an adjusting means for adjusting a degree of curvature or a curved shape of the curved portion. A propeller type hydraulic motor according to the next invention is provided with a blade tilting means for tilting the blade to the downstream side in accordance with the flow velocity of the fluid.

In the propeller type hydraulic motor according to the next invention, the blade collapsible means is configured such that spokes connecting the blade to the rotating shaft are made of an elastic body.

A propeller-type hydraulic prime mover according to the next invention is characterized in that the blade folding means comprises: connecting means for connecting the blade to the rotating shaft so as to swing the blade downstream; and a blade fixed to a base of the blade. And a resilient member that urges the weight in the direction of the rotation axis. A propeller-type hydraulic prime mover according to the next invention is used as a hydraulic prime mover by connecting a generator upstream of the propeller-type hydraulic prime mover.

A propeller-type hydraulic prime mover according to the next invention has a generator connected to the downstream side of the propeller-type hydraulic prime mover, and is used as a hydraulic generator.

In the propeller-type hydraulic prime mover according to the next invention, the fluid is the atmosphere, and the fluid is used as a propeller-type wind prime mover.

In the propeller type hydraulic motor according to the next invention, the fluid is water, and the fluid is used as a propeller type hydraulic motor.

A propeller-type hydraulic prime mover according to the next invention is a propeller-type hydraulic prime mover in which a rotating shaft faces a fluid flow direction and blades are attached to the rotational shaft in a substantially radial manner. And a fluid guiding means for guiding a fluid flowing in the rotation axis direction toward the blade in a direction following the blade rotation direction.

The propeller type fluid prime mover of the present invention is provided with fluid guide means disposed upstream of the propeller type fluid prime mover for guiding fluid flowing in the direction of the rotation axis toward the blade in the direction following the blade rotation direction. Therefore, the propulsion force and the flow due to the action of the angle of attack β and the fluid coming from the front receive the combined propulsion force of the fluid in the direction following the blade by the conductive plate. High rotation speed can be realized.

In the propeller type hydraulic motor according to the next invention, the rotating shaft faces the fluid flow direction, In a propeller-type hydraulic motor in which a blade is attached to a rotating shaft in a substantially shape, a fluid that is arranged on an upstream side of the port-type propeller-type hydraulic motor and that flows in the direction of the rotating shaft toward the blade is moved in the blade rotating direction. , Power, and a fluid guiding means for guiding the blade to be held down.

The propeller-type hydraulic prime mover of the present invention is arranged on the upstream side of the propeller-type hydraulic prime mover, and follows the fluid flowing in the direction of the rotating shaft toward the blade in the blade rotating direction and presses the fluid within the blade radius. The provision of the fluid guiding means for guiding can suppress wind escaping in the radial direction and contribute to an increase in the forward force of the blade.

In the propeller type hydraulic motor according to the next invention, the fluid guide means is radially arranged along the rotation axis and axisymmetrically, and the downstream side has a curved portion curved in the blade rotation direction. It is a pair of # 流 conductive plates.

In the propeller type hydraulic motor according to the next invention, the fluid guide means is radially arranged to be axially symmetrical along the rotation axis, and the downstream side is curved in the blade rotation direction, and the power and the downstream are arranged. The pair of flow guide plates each having a curved portion whose outer side portion is curved inward in the blade rotation direction.

A propeller type hydraulic motor according to the next invention is provided with an adjusting means for adjusting a degree of curvature or a curved shape of the curved portion.

A propeller type hydraulic motor according to the next invention is provided with a blade tilting means for tilting the blade to the downstream side in accordance with the flow velocity of the fluid.

A propeller type hydraulic motor according to the next invention is characterized in that the blade collapsible means comprises: connecting means for connecting the blade to the rotating shaft so as to swing to the downstream side; and a blade fixed to a base of the blade. And a resilient member for urging the weight in the direction of the rotation axis. The blade of the propeller type hydraulic motor according to the following invention has a cross section of [ The outside of the curved portion of the J-shape is the leading edge in the blade rotation direction, the inside of the long piece of the J-shaped portion is the blade surface, and the recess inside the curved portion is the fluid force receiving portion.

The blade of the propeller type hydraulic motor according to the present invention has a cross section formed in a J-shape, the outer side of the J-shaped curved portion as the blade rotation direction front edge, and the inner side of the J-shaped long piece portion as the blade surface. Since the concave part inside the curved part is used as the fluid force receiving part, the fluid flowing from the front and the angle of attack] 3 The rotating force of the blade and the fluid flowing from the front and the action of the concave part of the J-shaped curved part Can receive the combined rotational force.

In the blade of the propeller type hydraulic motor according to the next invention, the concave portion inside the curved portion is used as a fluid force receiving portion, and is a flow passage that receives a rotational force by a fluid flowing in a radial direction.

The blade of the propeller type hydraulic motor according to the following invention has a U-shaped cross section, the outer side of the U-shaped curved portion is the front edge in the blade rotation direction, and the outer side of the long piece on the upstream side is the blade surface. The concave portion inside the U-shape is a channel that receives rotational force by the fluid flowing in the radial direction.

The blade of the propeller type hydraulic motor according to the present invention has a U-shaped cross section, the outer side of the U-shaped curved portion is the leading edge in the blade rotation direction, and the outer side of the long piece portion on the upstream side is the blade surface. The concave portion inside the letter is a flow path that receives rotational force from the fluid flowing in the radial direction, so the concave part is deeper than the J-shaped blade, so the fluid in the radial direction does not escape until the fluid reaches the tip of the blade. It can sink and absorb rotational force from the fluid. Brief Description of Drawings

FIG. 1 is a side view of a hydraulic power generator driven by a propeller-type hydraulic prime mover according to Embodiment 1 of the present invention. FIG. 2 is an exploded perspective view of the propeller-type hydraulic prime mover. FIG. 3 is a perspective view of the J-shaped blade, FIG. 4 is a cross-sectional view of the J-shaped blade along the line A_A in FIG. 3, and FIG. 5 is a perspective view of the propeller type hydraulic motor. Fig. 6 is a front view as seen from the upstream side, and Fig. 6 shows a J-shaped FIG. 7 is a perspective view of an elongated linear J-shaped blade, and FIG. 8 is a front view of a slender linear J-shaped blade according to a second embodiment of the present invention. FIG. 9 is a side view of the generator, FIG. 9 is a view taken along the line BB in FIG. 8, and FIG. 10 is a view of the U-shaped blade along the line C-C in FIG. FIG. 11 is a perspective view of a fluid guide plate, FIG. 12 is an explanatory diagram of a fluid switch opening / closing device, and FIG. 13 is a sectional view of an embodiment of the present invention. FIG. 14 is a side view of a hydraulic power generator driven by a propeller type hydrodynamic motor of form 3, FIG. 14 is a plan view of a curvature adjusting device for a fluid guide plate, and FIG. FIG. 16 is a plan view of a curvature adjusting device, FIG. 16 is a side view of a blade folding device, and FIG. 17 is a side view of another blade folding device. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of a propeller-type hydraulic prime mover according to the present invention will be described in detail with reference to the accompanying drawings. This embodiment is a propeller-type wind motor, but the propeller-type motor of the present invention can be used for both wind power and hydraulic power. This will be used to describe both propeller-type prime movers for wind and hydro.

Embodiment 1

Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 7 and FIG. FIG. 1 is a side view of a hydraulic power generator driven by a propeller-type hydraulic prime mover according to Embodiment 1 of the present invention. FIG. 2 is an exploded perspective view of the propeller-type hydraulic prime mover. Fig. 3 is a perspective view of the J-shaped blade, Fig. 4 is a cross-sectional view of the J-shaped blade along the line A-A in Fig. 3, and Fig. 5 is a propeller type hydraulic motor. Fig. 6 is a front view as seen from the upstream side of Fig. 6. Fig. 6 shows a smoothly curved rearward direction of rotation: [Front view of a character blade, Fig. 7 shows an elongated straight J-shaped blade. FIG. 11 is a perspective view of a fluid guide plate.

In the figure, a propeller-type hydraulic prime mover 1 has a hub 3 attached to a rotating shaft 2, a J-shaped blade 5 for receiving a hydrodynamic force, and a sport connecting the J-shaped blade 5 to the hub 3. It is generally composed of (4).

As shown in FIG. 3 and FIG. 4, the J-shaped blade 5 of this embodiment is configured such that a front edge portion of a blade plate made of an elongated metal flat plate is curved toward the upstream side, and the cross section is It is formed in a J-shape. The outer side 5a of the J-shaped curved portion is the front edge of the blade rotation direction K (see FIGS. 2, 4, and 5). Is the blade surface that receives the fluid force, and the concave portion 5c inside the curved portion is the fluid force receiving portion. The J-shaped blade 5 is attached to the rotating shaft 2 with an angle of attack β with respect to the plane perpendicular to the rotating shaft 2, as in the conventional blade. The angle of attack can be set to 0 ° to reduce the rotational fluid resistance.

Next, the operating principle of the J-shaped blade will be described. Of the fluid that strikes the blade surface 5b, the fluid 6a that strikes the rear of the blade surface 5b flows backward in the unobstructed rotational direction, and a forward force is generated on the J-shaped blade 5 if the angle of attack i3 is present. The fluid 6b hitting the front of the blade surface 5b flows forward in the rotation direction and is blocked by the concave portion 5c to generate a forward force on the J-shaped blade 5 to rotate the hydraulic motor 1. Further, even when the angle of attack β is 0 °, the forward force is generated in the J-shaped blade 5 by the action of the fluid 6b hitting forward and the concave portion 5c, and the hydraulic motor 1 can be rotated.

As shown in Fig. 3, Fig. 5 and Fig. 6, the shape of the J-shaped blade in the longitudinal direction is such that it smoothly curves backward from the base in the blade longitudinal direction to the tip end in the rotational direction. Blades 5, 15 and 25, as shown in Fig. 2 (b), a blade 5 bent backward in the middle in the rotational direction, or a blade 3 that is elongated and straight and covers the tip of the recess. 5 etc. can be adopted. Considering the rotational fluid resistance of the blade, it is desirable to adopt blades 5, 15, 25, etc. that are smoothly curved backward. The blade 5 in Fig. 3 rotates the motor 1 counterclockwise when viewed from upstream, and the other blades 15, 25, and 35 rotate clockwise around Nichidera. Things.

The width of the blade is preferably gradually reduced from the base toward the tip. At the base, the area for receiving the fluid is increased to increase the rotational force. Also, At the tip, the fluid resistance is reduced by reducing the area, and at the tip where the peripheral speed is high, the speed of discharging fluid is increased.

Also, conventional blades have so-called streamlined airfoil cross-sections, which are complex and have a problem in productivity.However, the above-mentioned blades can be easily formed from a flat metal plate by pressing. it can.

Further, when the blade is mounted on the hub 3, the blade may be mounted so that the axis of the base of the blade passes through the center of the rotation axis, but as shown in FIG. 5, the axis 15a of the base of the blade is positioned at the center of the rotation axis. It is better to mount the blade so that it is tilted backward in the rotational direction by mounting it offset so that it passes more forward in the rotational direction. In this specification, such a mounting method is also referred to as a blade which is mounted substantially radially. .

The aforementioned bending, bending and inclination of the blade backward in the rotational direction are caused by the flow of fluid in the radial direction (6c in Figs. 2 and 3) with respect to the propeller type hydraulic motor. Passes radially through the concave portion 5c of the blade, the flow path is bent at the bent, curved, and inclined portions, and a forward force is applied to the blade by the reaction force.

In the elongated linear blade 35 shown in Fig. 7, the concave portion 35c is formed by closing the distal end 35a of the concave portion in addition to the rotational force based on the operation principle of the J-shaped blade described above. The passing fluid 6c is ejected backward from the tip, generating a rotational force due to the reaction force.

Referring back to FIG. 1, a fixed shaft 7 that supports the rotating shaft 2 extends long upstream of the fluid motor 1, and a generator 8 is supported at the front end thereof. On the fixed shaft 7 immediately before the hydraulic motor 1, a cone 9 (cone) as a flow guiding means for guiding the fluid flowing near the rotating shaft 2 to the outer peripheral side is installed with its tip end toward the upstream side. ing. The outer diameter of the base of the cone is larger than the base の of the blade 5.

Even if the fluid flowing in the vicinity of the rotating shaft 2 is applied straight to the blade as it is, the distance from the rotating shaft 2 is small, so that the wind power generator 1 generates almost no rotating torque. When it hits 5, from rotation axis 2 (2) A large rotating torque can be generated because the distance is large. At this time,

3 As shown in Fig. (B), blocking the base of the recess 5c of the blade 5 with the shielding plate 5d prevents the fluid that has hit the blade 5 from escaping in the inner circumferential direction and increases the rotational torque. it can. The blade 5 shown in FIG. 3 (a) does not have the shielding plate 5d shown in FIG. 3 (b).

In particular, in the case of the J-shaped blades 5, 15, 25, 35, etc., a radial wind flow (6c in FIGS. 2 and 3) is generated by the cone 9, and the wind is generated by the concave portion 5 of the blade. The air path passes through c in the radial direction, and the wind path is bent at the bends, bends, and slopes, and the reaction force exerts forward force on the blade.

The cone 9 as the fluid guiding means may be round or round, or may be shaped like Mt. Fuji with a sharp point.

Further, on the upstream side of the cone 9, a pair of upper and lower fluid guide plates 1 as a flow guiding means for guiding a fluid flowing in the direction of the rotation axis 2 toward the blade 5 so as to follow the blade in the blade rotation direction. As shown in FIG. 11, 0 and 10 are radially attached to the fixed shaft 7 so that the front thereof is along the rotation shaft 2 and the rear portion is curved in the blade 5 rotation direction. The flow fls conductive plates 10 and 10 may be mounted in pairs instead of up and down, left and right or diagonally, or two pairs of up, down, left and right may be mounted. When the upper and lower parts are paired, the function of a vertical tail unit that directs the hydraulic motor 1 in the fluid flow direction can be performed. It is preferable that the side surface contours of the fluid guide plates 10, 10 are formed in a shell shape in a vertically aligned manner, and the rear outer portion is curved inward in the blade rotation direction. In this way, the wind trying to escape in the emission direction can be suppressed, and the forward force of the blade 5 can be increased. The inside of the rear part of the fluid guide plates 10 and 10 is shaped to match the external shape of the cone 9.

'' The propeller-type hydraulic motor 1 and the generator 8 are connected by a rotating shaft 9 and a fixed shaft 7 that extend upstream of the prime mover 1, and the strut 1 1 is located approximately at the center of gravity upstream of the fluid guide plates 10, 10. Supports the fixed shaft 7 so as to be freely rotatable horizontally, and constitutes a hydraulic power generator 100. With such a configuration, the fluent plates 10 and 10 function as vertical tails, and the rotating shaft 2 is always in the position. In the fluid flow direction. However, if a vertical tail is separately attached, the generator 8 may be connected to the rotating shaft 2 and the fixed shaft 7 extending downstream of the prime mover 1.

The J-shaped blade 5 has a propulsive force due to the action of the fluid 6a coming from the front and the angle of attack β, a propulsive force caused by the action of the fluid 6b coming from the front and the recess 5c, and a radial fluid 6c due to the cone 9. Propulsion and flow due to the action of the recesses 5c and # # The combined propulsion by the fluid in the direction following the blade by the plates 10 and 10 achieves high rotational driving force and high rotational speed even at low flow rates can do.

Embodiment 2

Embodiment 2 of the present invention will be described with reference to FIGS. 8 to 12. FIG. FIG. 8 is a side view of a hydraulic power generator driven by a propeller-type hydraulic prime mover according to Embodiment 2 of the present invention. FIG. 9 is a view taken along the line BB in FIG. FIG. 10 is a cross-sectional view of the U-shaped blade along the line C--C in FIG. 9, FIG. 11 is a perspective view of the fluid guide plate, and FIG. It is explanatory drawing of the opening / closing device of a fluid catch.

In the figure, a propeller type hydraulic motor 21 has a spoke 24 attached to the rotating shaft 2, a hollow hemispherical fluid catch 29 supported by the spoke 24, and an outer peripheral portion of the fluid clutch 29. It is attached, has a base opening, and is generally constituted by a U-shaped blade 45 which receives a fluid force from the front and a radial fluid force from the fluid clutch 29.

As shown in FIGS. 9 and 10, a U-shaped blade 45 of this embodiment is formed by bending a blade plate made of an elongated metal flat plate at a central portion to form a U-shaped cross section. The outer side 45 a of the U-shaped curved part is the leading edge in the blade rotation direction, the outer side 45 b of the long piece of the U-shape is the blade surface that receives the fluid force, and the concave part 45 c inside the U-shaped The flow path receives rotational force due to the wind flowing in the radial direction. The U-shaped blade 45 is attached to the rotating shaft 2 via a fluid catch 29 at an angle of attack β with respect to a plane perpendicular to the rotating shaft 2, similarly to a conventional blade. It may be attached directly to the rotating shaft 2 by spokes without using the fluid catch 29! /. Next, the operating principle of the propeller-type hydraulic motor 21 in which the fluid clutch 29 and the U-shaped blade are combined will be described. Most of the wind that hits the blade surface 45 b flows behind the blade 45 at the angle of attack β, and a forward force is generated on the U-shaped blade 45 by the angle of attack to rotate the hydraulic motor 21.

Regarding the shape of the U-shaped blade in the longitudinal direction, a shape similar to the J-shaped blade described in the first embodiment can be adopted. In consideration of the rotational fluid resistance of the blade, it is desirable to use a blade 45 that is smoothly curved backward. The blade 45 of this embodiment is mounted in a direction to rotate the hydraulic motor 21 clockwise as viewed from the upstream side. If the U-shaped curved part 45a is installed in the opposite direction, it becomes a hydraulic motor that rotates counterclockwise.

The width of the blade is preferably gradually reduced from the base toward the tip. At the base, the area for receiving the fluid is increased to increase the rotational force. At the tip, the fluid resistance is reduced by reducing the area, and at the tip where the peripheral speed is high, the speed at which fluid is discharged is increased.

Also, conventional blades have a complicated cross-sectional shape with a so-called streamlined airfoil, which has a problem in production. However, the above blade is easily formed by pressing from a flat metal plate. be able to.

Further, when the blade is attached to the fluid catch 29, as in the case of the blade 45, the blade may be attached so that the axis of the base of the blade passes through the center of the rotating shaft 2, but as shown in FIG. 5 of the first embodiment. In addition, it is preferable to mount the blade so as to be inclined rearward in the rotational direction by offsetting so that the axis 15a at the base of the blade passes forward in the rotational direction from the center of the rotational axis.

The aforementioned bending, bending and inclination of the blade backward in the rotational direction are caused by the flow of fluid in the radial direction (6c in Figs. 2 and 3) with respect to the propeller type hydraulic motor. The fluid passes radially through the concave portion 45c of the blade, and the fluid is bent backward at the bend, curve, and inclined portion, and a forward force is applied to the blade by the reaction force. The U-shaped blade has a deeper recess 45 c than the J-shaped blade, so the fluid reaches the tip of the blade. It can absorb the forward force without escaping.

Returning to FIG. 8, a fixed shaft 7 that supports the rotary shaft 2 extends long to the windward side of the wind power motor 21, and a power source 8 is supported at a front end thereof.

The hollow hemispherical fluid clutch 29 with its opening directed to the upstream side is located downstream of the blade 45, flows near the rotating shaft 2, and passes through the inside of the base of the blade 45 opening 6 This is a fluid guiding means for inverting d to the front outer peripheral side and guiding it to the opening of the blade 45 base on the outer peripheral side of the fluid clutch 29.

Even if the fluid flowing in the vicinity of the rotating shaft 2 is directly applied to the blade as it is, the distance from the rotating shaft 2 is small, so that almost no rotational torque is generated in the propeller type hydrodynamic motor 21, but the outer periphery is formed by the fluid clutch 29. When the fluid is guided to the side and flows from the base opening of the U-shaped blade 45 to the inside 45 c inside the U-shape, the fluid radially passes through the concave portion 45 c and flows at the bend, curve, and slope. Is bent, giving the blade a rush of energy by the reaction force.

The fluid clutch 29 as the flow guiding means may be of a slightly elongated spindle type. The hemispherical or spindle-shaped fluid catch 29 has the effect of not disturbing (or making it turbulent) the flow on the downstream side of the hydraulic motor 2 1, and increasing the flow velocity passing through the hydraulic motor 21 to increase the rotational force. Has the effect of increasing.

Further, on the upstream side of the fluid clutch 29, a pair of upper and lower flows as fluid guiding means for guiding the fluid flowing toward the blade 45 in the direction of the rotation axis 2 so as to follow the blade 45 in the blade rotation direction. # ^ Conductor 10, 10 Force As shown in the perspective view of Fig. 11, it is mounted radially on the fixed shaft 7 in front of, along the rotating shaft 2 and up and down radially. It is curved in the direction of rotation. The flow plates 10 and 10 may be mounted in pairs, not horizontally, vertically, horizontally or diagonally, or may be mounted vertically, horizontally and vertically. When it is a pair of upper and lower parts, it can function as a vertical tail that directs the hydraulic power motor 21 in the fluid flow direction.

It is preferable that the outer contour of the side surfaces of the flow guide plates 10 and 10 is formed in a cannonball shape in which the upper and lower sides are aligned, and the rear outer portion is curved inward in the blade rotation direction. In this way, The wind trying to escape in the shooting direction is suppressed, and the forward force of the blade 45 can be increased.

The propeller type hydraulic motor 21 and the generator 8 are connected by a rotating shaft 2 and a fixed shaft 7 extending upstream of the motor 21, and a support is provided at a position substantially at the center of gravity upstream of the fluid guide plates 10, 10. The fixed shaft 7 is supported by 11 · 1 so as to be freely rotatable horizontally, and constitutes a hydrodynamic generator 200. With this configuration, the fluid guide plates 10 and 10 function as vertical tails, and the rotating shaft 2 can always be directed in the wind direction.

The U-shaped blade 45 has a propulsive force caused by the action of the fluid 6 coming from the front and the angle of attack, a propulsive force caused by the action of the fluid 6 c and the recess 45 c by the fluid catch 29 9, and a fluid guide plate 10. , 10, and can achieve high rotational driving force and high rotational speed even at a low flow velocity.

The U-shaped blade 45 can also be used as a blade for the propeller-type hydrodynamic motor 1 of the first embodiment. At this time, the outer diameter of the base of the cone 9 is made smaller than the outer diameter of the base of the blade 45 so that the fluid enters the recess 45 c from the base opening of the blade 45. Also in the U-shaped blade 45, as shown in FIG. 3 (b), the base may be closed by a shielding plate. In this case, the outer diameter of the base of the cone 9 may be larger than the outer diameter of the blade 45 attached to the base. Also, the J-shaped blades 5, 15, 25, 35, etc. of the first embodiment can be used as a blade for the propeller-type hydraulic motor 21 of the second embodiment.

As shown in FIG. 12, the fluid catch 29 is provided with an opening / closing device to suppress the rotational driving force of the hydraulic motor 21 at a high flow velocity and to prevent the fluid motor 21 from being damaged by fluid pressure. It has 2 9a. The opening and closing device 29a is provided at the bottom of the hemispherical fluid catch 29, and is urged in the closing direction by a spring mechanism, and is closed as shown in Fig. 12 (a). The petal-like on-off valve opens according to the fluid pressure due to the flow velocity, as shown in Fig. 12 (b), and releases the fluid to suppress the generation of radial flow 6c, and the rotation of the hydraulic motor 21 Suppress driving force.

Embodiment 3. Third Embodiment A third embodiment of the present invention will be described with reference to FIGS. 11 and 13 to 17. FIG. 13 is a side view of a hydraulic power generator driven by a propeller type hydraulic power engine according to Embodiment 3 of the present invention, and FIG. 14 is a plan view of a curvature adjusting device for a fluid guide plate. FIG. 15 is a plan view of another bending degree adjusting device, FIG. 16 is a side view of a blade folding device, and FIG. 17 is a side view of another blade folding device. It is a side view. In the figure, a propeller type hydraulic motor 31 is generally constituted by a conventional blade 55 and flow guide plates 10, 10 arranged on the upstream side of the blade 55. As shown in FIG. 13, a fixed shaft 7 that supports the rotary shaft 2 extends long upstream of the hydraulic motor 31, and a generator 8 is supported at the front end thereof. On the fixed shaft 7 on the upstream side of the propeller type hydraulic motor 3 1, there is a fluid guiding means for guiding the fluid flowing in the direction of the rotating shaft 2 toward the blade 55 so as to follow the blade 55 in the blade rotating direction. A pair of upper and lower fluid guide plates 10 and 10 are mounted on the fixed shaft 7 so as to extend along the rotary shaft 2 in front of the fluid guide plates 10, and the rear portion is a curved portion curved in the blade 55 rotation direction.

The propeller type hydraulic motor 31 and the generator 8 are connected by a rotating shaft 2 and a fixed shaft 7 extending upstream of the motor 31 and supported at a position substantially at the center of gravity upstream of the fluid guide plates 10 and 10. The fixed shaft 7 is supported by the columns 11 so as to be freely rotatable horizontally, and constitutes a hydrodynamic generator 300. With this configuration, the flow plates 10 and 10 function as vertical tails, and the rotating shaft 2 can always be directed in the fluid flow direction.

It is preferable that the side surface contours of the fluid guide plates 10 and 10 are formed in a shell shape in a vertically-aligned manner, and the downstream outer portion is curved inward in the blade rotation direction. In this way, the fluid that is escaping in the radial direction can be suppressed, and the forward force of the blade 55 can be increased.

Further, as shown in FIG. 13 and FIG. 14, the wire traction machines 10a and 10a are attached to the fixed shaft 7 support portion of the column 11 and the ends thereof are formed by the fluid guide plates 10 and 10. By pulling the wires 10b and 10b tied to the curved downstream outer side with the pullers 10a and 10a, the blade rotation direction and the blade rotation of the fluid guide plates 10 and 10 at the rear are pulled. The degree of curvature or the shape of the curve inward in the rolling direction can be adjusted to obtain the best efficiency according to the flow velocity. The wire puller 10 a and the wire 10 b constitute a curvature adjusting device for the fluid guide plate 10. For example, a pair of pulleys movable in the axial direction of the fixed shaft 7 is provided, and the wires 10b, 10b are connected to the wire pullers 10a, 10a via the pair of pulleys, By changing the positions of these pulleys in the axial direction, the curved shapes of the flow plates 10 and 10 can be changed. FIG. 15 shows another example of the curvature adjusting device, in which the front portions of the fluid guide plates 10 and 10 are supported on a fixed shaft 7 and the fluid guide plates 10 and 10 are moved right and left. Oscillating means 10 c to be provided. The same action as adjusting the curvature of the rear portion of the fluid guide plates 10 and 10 can be obtained by the shaking means 10c. It is good to provide such a curvature adjusting device in the fluid guide plates 10 and 10 of the first and second embodiments.

The conventional blade 55 receives the propulsion force by the action of the fluid 6 coming from the front and the angle of attack, and the combined propulsion force by the wind in the direction following the blade 55 by the flow # ϋ plates 10 and 10. High rotational driving force and high rotational speed can be achieved even at low flow rates. In the third embodiment, the above-described J-shaped or U-shaped blade may be used instead of the conventional blade 55.

As shown in FIG. 16, the blade 55 is provided to reduce the rotational driving force of the hydraulic motor 31 at a high flow velocity and to prevent the blade itself from being damaged by fluid pressure at a high flow velocity. It is advisable to provide a blade folding device 55a. The blade collapsible device 55a is made of a flexible body that connects the blade 55 to the rotating shaft 2, and moves the blade 55 downstream according to the fluid pressure generated in the blade 55 due to the flow velocity. (See Fig. 16 (b)), the rotational driving force of the hydraulic motor 31 is suppressed.

Fig. 17 shows another blade tilting device 55b, in which the blade 55 is swingably connected to the rotating shaft 2 in the downstream direction, and the base of the blade 55 is connected to this base. A rod 55 d attached to the tip of a rod 55 c fixed vertically to the blade 55 and extending vertically to the upstream side is provided. The blade rod 55c is connected to the elastic member 55e. Weight 5 5 d is turned by weight 5 5 d A resistance plate 55 f that receives fluid resistance when rotating around the rotation axis 2 is attached.

When the blade 55 rotates at high speed due to the high flow velocity, the centrifugal force causes the weight 55 d to move away from the rotating shaft 2 against the elastic force of the elastic member 55 e, and the blade 55 falls to the downstream side , Reduce the torque. At this time, the resistance plate 55 f also moves away from the rotating shaft 2, increasing the fluid resistance and contributing to a decrease in the rotating force. It is preferable to provide such blade folding devices 55a and 55b in the blades of the first and second embodiments. Industrial applicability

As described above, the propeller type hydraulic prime mover and its blade according to the present invention are useful for wind power generators and hydraulic power generators, and are particularly suitable for those in which the flow velocity changes from low speed to high speed.

Claims

1. In a propeller-type hydraulic motor in which a rotating shaft faces a fluid flow direction and a blade is attached to the rotating shaft in a substantially radial manner,

The cross section of the blade is formed in a J-shape, the outer side of the J-shaped curved portion is the front edge in the blade rotation direction, the inner side of the long portion of the J-shaped portion is the blade surface, and the 囬 portion inside the curved portion is flowing. A m-blue propeller-type hydraulic prime mover characterized by a force receiving section.

Request

1

2. The propeller type according to claim 1, wherein the concave portion inside the curved portion is used as a fluid force receiving portion 9 and a flow passage receiving a rotational force by a fluid flowing in a radial direction. Hydraulic prime mover. Enclosure

3. The propeller type hydraulic prime mover according to claim 1, wherein the angle of attack of the blade surface is substantially 0 °.

4. In a propeller-type hydraulic motor in which the rotating shaft is oriented in the fluid flow direction and the blades are almost radially mounted on the rotating shaft,

The cross section of the Mae Sokki blade is formed in a U-shape, the outside of the U-shaped curved part is the front edge in the blade rotation direction, the outside of the long piece upstream of the fluid is the blade surface, and the inside of the U-shape is A propeller-type hydraulic motor characterized in that the concave portion is a flow path that receives rotational force by a fluid flowing in a radial direction.

5. The propeller type hydraulic motor according to claim 1, wherein a base portion and a tip portion of the concave portion of the blade are open.

6. The propeller type hydraulic prime mover according to claim 1, wherein a base of the concave portion of the blade is closed.

7. The propeller type hydraulic prime mover according to claim 1, wherein the blade has an elongated linear shape and a tip end of the concave portion is closed.

8. The propeller type hydraulic motor according to claim 1, wherein the blade is bent rearward in the rotational direction from a base to a tip.

9. The propeller-type prime mover according to claim 1, wherein the blade is smoothly curved rearward in the rotational direction from the base to the tip.

10. The propeller type hydraulic motor according to claim 1, wherein a lateral width of the blade gradually decreases from a base to a tip.

11. The propeller type hydraulic prime mover according to claim 1, wherein the blade is formed by flat plate pressing.

12. The propeller type hydraulic motor according to claim 1 or 4, wherein the blade is attached to the rotating shaft such that an axis of a base of the blade passes through a center of the rotating shaft. .

13. The blade according to claim 1 or 4, wherein the blade is attached to the rotating shaft so that an axis of a base of the blade passes forward in a rotational direction from a center of the rotating shaft. The propeller type hydraulic prime mover as described.

14. A fluid guide means disposed upstream of the propeller-type fluid prime mover and for guiding a fluid flowing in the vicinity of a rotating shaft to an outer peripheral side. Or a propeller-type hydraulic motor as described in paragraph 4

15. The propeller type hydraulic motor according to claim 14, wherein the fluid guiding means is formed in a substantially conical shape, and a tip portion is located on an upstream side on a rotating shaft. .

16. A flow guiding means which is located downstream of the blade, reverses fluid flowing near the rotation axis and passing inside the base of the blade, and guiding the fluid to the base of the blade on the outer peripheral side. 5. The spout type hydrodynamic motor according to claim 1 or 4, characterized in that: ,

17. The propeller-type hydraulic motor according to claim 16, wherein the flow guiding means is a hollow hemispherical fluid clutch.

18. The propeller type hydraulic motor according to claim 17, wherein the fluid catch is attached to the rotating shaft via a spoke and supports a base of the blade. '

19. The propeller type flow as set forth in claim 17, wherein said fluid catch is provided with opening / closing means for opening / closing according to the flow velocity of said fluid and allowing fluid to escape from said fluid catch. Power motor.

20. The opening / closing means is provided at a bottom opening of the fluid clutch, and is normally closed by being biased in a closing direction by a spring mechanism, and against a spring force by a predetermined fluid pressure due to a flow velocity. The propeller-type hydraulic motor according to claim 19, wherein the propeller-type hydromotor is a plurality of petal-like on-off valves that open.

21. A fluid guiding means which is arranged on the upstream side of the port-port type hydrodynamic motor and guides a fluid flowing toward the blade in a rotation axis direction in a direction following the blade rotation direction. The propeller type hydraulic motor according to claim 1 or 4, wherein:

2 2. A flow arranged upstream of the propeller-type hydraulic prime mover, which follows the fluid flowing in the direction of the rotation axis toward the blade in the direction of rotation of the blade, and guides the fluid to be held within the blade radius. 5. The propeller-type hydraulic prime mover according to claim 1, further comprising a guiding means.

23. The flow guiding means are arranged in an ¾lt shape symmetrically with the axis of rotation so as to be along the rotation axis, and the downstream side has a pair of fluid guiding plates having a curved portion curved in the blade rotation direction. 21. The propeller type hydraulic power plant according to claim 21, wherein: 24. The flow guide means is radially arranged symmetrically with force along the rotation axis, the downstream side is curved in the blade rotation direction, and the downstream outer part is blade-rotated. 22. The propeller-type hydraulic prime mover according to claim 22, wherein the pair of fluid guide plates have a curved portion curved inward in the direction. 25. The propeller type hydraulic motor according to claim 23 or 24, further comprising adjusting means for adjusting a degree of curvature or a curved shape of the curved portion.

26. The propeller type hydraulic motor according to claim 1 or 4, further comprising blade tilting means for tilting the blade to the downstream side in accordance with the flow velocity of the fluid.

27. The blade tilting means includes a spoke for connecting the blade to the rotating shaft. 27. The propeller-type hydraulic motor according to claim 26, wherein the rotor is made of an elastic material.

28. The blade tilting means includes a connecting means for connecting the blade to the rotating shaft so as to swing to the downstream side, and a mouth fixed to a base of the blade and extending substantially perpendicular to the blade and extending upstream. 27. The propeller type hydraulic motor according to claim 26, further comprising: a weight attached to a tip end; and an elastic member for urging the weight in the rotation axis direction. 29. The propeller type flow according to claim 1 or 4, wherein a generator H is connected to an upstream side of the propeller type hydraulic motor to be used as a hydroelectric generator. Power motor.

30. The propeller-type hydraulic device according to claim 1 or 4, wherein a generator is connected to a downstream side of the propeller-type hydraulic motor to be used as a hydroelectric generator. Prime mover.

31. The propeller-type hydraulic motor according to claim 1, wherein the fluid is air, and the fluid is used as a propeller-type wind motor.

32. The propeller-type hydraulic prime mover according to claim 1, wherein the fluid is water, and is used as a propeller-type hydraulic prime mover.

3 3 In a propeller-type hydraulic prime mover in which the rotating shaft faces the fluid flow direction and the blades are mounted almost radially on the rotating shaft,

A fluid guiding means disposed upstream of the propeller type hydraulic power generator and guiding a fluid flowing in an axial direction toward the blade in a direction following the blade rotating direction; A propeller-type hydraulic prime mover,

3 4. In a propeller-type hydraulic motor in which the rotating shaft faces the fluid flow direction and the blades are mounted almost radially on the rotating shaft,

A fluid guide means is provided upstream of the propeller type hydraulic motor, and guides fluid flowing in the direction of the rotating shaft toward the blade in the direction of blade rotation and to be pressed into the blade radius 內. A propeller-type hydraulic motor. 35. The fluid guide means is a pair of fluid guide plates that are radially arranged along the rotation axis and axially symmetric, and the downstream side has a curved portion curved in the blade rotation direction. The propeller type hydraulic motor according to claim 33, characterized by the following.

36. The flow-guiding means is arranged in a symmetrical shape with a force axis so as to be along the rotation axis, the downstream side is curved in the blade rotation direction, and the downstream-side outer part is a blade. 35. The propeller-type hydraulic motor according to claim 34, wherein the propeller-type hydraulic motor is a pair of flow plates having a curved portion curved inward in the rotation direction.

37. The propeller-type hydraulic motor according to claim 35, further comprising an adjusting unit configured to adjust a degree of curvature or a curved shape of the bending portion.

38. The propeller type hydraulic motor according to claim 33 or 34, further comprising: blade tilting means for tilting the blade to the downstream side in accordance with the flow velocity of the fluid. ·

39. The device according to claim 38, wherein said blade folding means comprises a spoke for connecting said blade to said rotary shaft made of an elastic material. Propeller type hydraulic prime mover,

40. The blade folding means comprises: a connection means for connecting the blade to the rotating shaft so as to be swingable downstream; and a tip of a mouth fixed to a base of the blade and extending vertically upstream to the blade. 39. The open-port type hydrodynamic motor according to claim 38, comprising: a weight attached to the shaft; and an elastic member for urging the weight in the rotation axis direction.

4 1. Cross section: [formed in the shape of a letter, the outside of the J-shaped bend is the leading edge in the blade rotation direction, the inside of the long piece of the J is the blade surface, and the recess inside the bend is the fluid force. A blade of a propeller-type hydraulic motor characterized by having a receiving portion.

42. The propeller type according to claim 41, wherein the concave portion inside the curved portion is used as a fluid force receiving portion, and the flow channel receives a rotational force by a fluid flowing in a radial direction. Fluid motor blade.

4 3. The cross section is formed in a U-shape, the outside of the U-shaped curved portion is the leading edge in the blade rotation direction, the outside of the long piece on the upstream side is the blade surface, and the concave portion inside the U-shape is radially A blade of a propeller-type hydraulic motor, wherein the blade receives a rotating force by a flowing fluid.