JP2008297963A - Rotating device and power generator - Google Patents

Abstract

To provide a practical power generator by efficiently converting energy of a fluid into rotational energy.
A casing 21 having a fluid inlet and outlet, a rotatable rotor 22 arranged eccentrically inside the casing 21, and a vane 23a provided so as to protrude and retract with respect to the rotor 22 are provided. The rotor 22 has a recess 24 in the vicinity of the center thereof, and the casing 21 has a shape in which a part of the upper surface of the inner wall of the casing 21 is raised inward so as to enter the recess 24. The ridges 25 are used to restrict the amount of vanes 23a to 23f to be inserted into the rotor 22 and are always positioned so that the tips of the vanes 23a to 23f are in contact with the inner wall of the casing 21. The side is separated from the discharge port side, and the pressure difference of the fluid between the suction port side and the discharge port side is received by each of the vanes 23a to 23f and converted into the rotation of the rotor 22.
[Selection] Figure 2

Description

  The present invention relates to a rotating device for converting energy of a fluid such as water or air into rotational energy, and a power generator that supplies electric power to a portable device by daily operations such as walking using the rotating device.

  2. Description of the Related Art Conventionally, functions installed in mobile devices have been increased and their usage time has been extended, so that there is a problem that the power of mobile phones, music players, etc. is cut off when going out. In order to solve this problem, it is necessary that the capacity of the battery mounted on the portable device is sufficiently large, that the battery can be charged everywhere when going out, or that electric power is obtained by power generation.

  However, in the current battery technology, when the capacity of the battery is increased, the size and weight of the battery increase, and the portability deteriorates. Also, there is currently no system that can be charged anywhere when going out. Moreover, although portable generators, such as a hand-charged charger, exist, the user has to be consciously charged to charge the battery, which makes the user tired and impractical.

  Therefore, walking power generation has been devised as a means for generating power without the user being aware of it. For example, Patent Document 1 discloses a method of obtaining electric power by disposing a piezoelectric element in an operating part inside a shoe such as a bag and generating distortion in the piezoelectric element due to stress caused by walking. A method is disclosed in which electromagnetic induction is generated by changing a distance between a magnet and a coil attached to the inside of a shoe by walking motion, and electric power is obtained by the generated electromagnetic induction.

  Also, by walking, the handle inside the shoe is pushed by weight, and the generator is rotated by the work to obtain power, or a pump is placed inside the shoe, air is taken in from the outside by walking pressure, and the turbine is A method for obtaining electric power by rotating a generator to rotate has been devised.

JP 2004-96980 A Japanese Patent No. 2870330

  By the way, the above-described conventional technique has a problem in its practicality. For example, although the conventional technology using the above-described piezoelectric element has an advantage that there is almost no sense of incongruity when the user walks, the size of the piezoelectric element that enters the shoe sole is limited, and the output is several tens of degrees at most. Since it is mW and cannot provide power consumption of 1 W or more required for communication devices such as mobile phones, there is a problem in practicality. There is no practical piezoelectric element material that can output 1 W or more.

  In addition, the conventional technique using the above-described electromagnetic induction generates an electromotive voltage of electromagnetic induction proportional to the derivative of the change in the distance between the magnet and the coil. However, an output of 1 W or more cannot be expected at a normal walking speed. There was a problem with sex.

  Moreover, although the conventional technique which obtains electric power by pushing the handle with the body weight described above can expect an output of 1 W or more, a speed increasing mechanism is required to increase the efficiency, and thus a gear is used. However, since noise is generated from the gear during operation, the user always makes noise from his / her feet while walking, which causes discomfort to the user. In addition, the gear portion is liable to deteriorate due to wear, so that there is a problem in durability. Also, if the stroke is increased to increase the amount of power generation, the user will feel uncomfortable during walking. For this reason, the related art has a problem in practicality.

  Further, the conventional technique for obtaining electric power by rotating the turbine with the air pressure taken in from the outside described above can expect an output of 1 W or more, and uses a pressure change of gas as a speed increasing mechanism, so that noise is low. However, since the air near the shoe sole is close to the ground, it tends to take in dust, rainwater, etc., and the operating part such as the turbine is likely to be worn or deteriorated. There are various types of turbines, such as propeller type, Francis type, Pelton type, and turbo type. Generally, any type used for power generation requires a stable flow rate and pressure against the fluid. If it deviates from the rotational speed, the efficiency will deteriorate. In particular, when the rotational speed falls below the rating, the efficiency is significantly reduced. When walking, the foot repeatedly touches and leaves the ground, so the pressure obtained by walking fluctuates greatly, and it is extremely inefficient when using a general turbine, and within the limited volume of the shoe sole A large output of 1 W or more could not be expected. For this reason, the related art has a problem in practicality.

  As described above, in the current situation, the technology for generating electricity without the user's awareness has problems such as low power consumption, discomfort to the user, fragility, and energy loss. None of them were practical.

  The present invention has been made to solve the above-described problems in the prior art and to solve the problems, and provides a turbine, that is, a rotating device with little loss even in a situation in which the flow rate and pressure greatly change, and the rotation thereof. Providing a practical power generator that can charge a portable device without conscious work in the casual operation of human daily life and prevent the battery of the portable device from running out by generating electricity using the device The purpose is to do.

  In order to solve the above-described problems and achieve the object, the invention according to claim 1 is an outer cylinder member having a fluid inlet and outlet, and a rotation arranged eccentrically in the outer cylinder member. And a vane provided so as to be able to project and retract with respect to the rotor. The rotor has a recess in the vicinity of the center of the rotor, and the outer cylinder member enters the recess. As described above, the inner wall bulge has a shape in which a part of the upper surface or the lower surface of the inner wall of the outer cylinder member is bulged in the inner direction, and the inner wall bulge limits the amount of immersion of the vane into the rotor, The tip of the vane is always positioned so as to be in contact with the inner wall of the outer cylinder member to isolate the suction port side from the discharge port side, and the fluid pressure difference between the suction port side and the discharge port side is determined. In response to the rotation of the rotor And wherein the door.

  The invention according to claim 2 is characterized in that, in the above-mentioned invention, the rotating device according to claim 1 further comprises power generation means for generating electric power using rotation of the rotor.

  According to a third aspect of the present invention, in the above invention, between the two or more fluid tanks whose internal volume changes due to an external load and the two or more fluid tanks based on the change in the internal volume And a flow path for allowing fluid to flow, wherein the outer cylinder member is provided on the flow path.

  According to a fourth aspect of the present invention, in the above invention, any one of the fluid tanks includes a plurality of the flow paths, and the plurality of flow paths have a check valve that prevents a back flow. Even when pressure is applied to the fluid, the flowing fluid rotates the rotor in the same direction.

  The invention according to claim 5 further comprises mounting means for mounting on the user's body so that the weight applied to the fluid tank changes with the user's operation. It is characterized by generating electricity according to user behavior.

  According to a sixth aspect of the present invention, in the above invention, the mounting means is a shoe, and the fluid tank is different depending on whether the weight is applied near the toe of the user's foot or the weight is applied near the heel. Is characterized in that a weight is applied.

  According to the first aspect of the present invention, an outer cylinder member having a fluid inlet and outlet, a rotatable rotor arranged eccentrically inside the outer cylinder member, and projecting and retracting with respect to the rotor. The rotor has a recess near the center of the rotor, and the outer cylinder member has a part of the upper surface or the lower surface of the inner wall of the outer cylinder member so as to enter the recess. It has an inner wall bulge that is bulged inwardly, and the inner wall bulge limits the amount of vane penetration into the rotor, so that the tip of the vane is always positioned so that it touches the inner wall of the outer cylinder member. The discharge side is isolated, and the pressure difference between the suction side and the discharge side is received by the vane and converted into rotation of the rotor.For example, even if the flow rate or pressure of the fluid is small, the fluid remains on the side of the vane. Ensure energy to vane without slipping through Convey such, it can also provide a low loss rotating device in a situation where the flow rate and the pressure is greatly changed in the fluid, further, by using this, it is possible to provide a practical power generation device.

  According to the second aspect of the present invention, since the rotating device according to the first aspect generates electric power by using the rotation of the rotor, it is possible to generate electric power efficiently even in a situation where the flow rate and pressure of the fluid greatly change. It becomes possible to provide a practical power generator.

  According to the invention of claim 3, the flow path for flowing fluid between the two or more fluid tanks whose internal volume changes due to external weighting and the two or more fluid tanks based on the change of the internal volume And an outer cylinder member is provided on the flow path, so if there are two or more places where pressure or weight changes, fluid energy can be efficiently converted to rotational energy even in situations where the pressure and flow rate change greatly. Thus, it is possible to provide a practical power generator.

  Further, according to the invention of claim 4, when a pressure is applied to any of the fluid tanks, a plurality of flow paths are provided, and the plurality of flow paths are pipes having check valves that prevent backflow. However, since the flowing fluid rotates the rotor in the same direction, the power generation efficiency can be improved by supplying the rotational force without stopping the rotation of the rotation device due to inertia, and a practical power generation device is provided. It becomes possible.

  Further, according to the invention of claim 5, since it is mounted on the user's body so that the load on the fluid tank changes with the user's operation, and power is generated by the user's action, By flowing the fluid and efficiently using the pressure and momentum of the flow, it is possible to efficiently extract rotational energy and generate electricity without conscious work in the casual operation of human daily life, It becomes possible to provide a practical power generator.

  According to a sixth aspect of the present invention, the power generation device is installed in the shoe worn by the user, and the fluid tank is different depending on whether the weight is applied in the vicinity of the toe of the user's foot or the weight is applied in the vicinity of the heel. To provide a practical power generation device that can efficiently extract rotational energy from the pressure and momentum of the fluid and generate power by flowing the fluid by moving the body weight of the user. Is possible.

  A rotating device and a power generator according to the present invention will be described below with reference to the accompanying drawings. In the following, a rotating device according to the present invention will be described in Example 1, and further, in Examples 2 to 4, a power generator using the rotating device in Example 1 will be described.

  First, a rotating device that is a premise of the present invention will be described with reference to FIG. In addition, FIG. 1 is a figure for demonstrating the structure of the rotating apparatus used as the premise of this invention. Here, in FIG. 1, the upper diagram is a top view of the turbine 1 that is a rotating device that is a premise of the present invention, and the lower diagram is a cross-sectional view when the structure shown in the top diagram is cut by a straight line A. It is.

  As shown in FIG. 1, a turbine 1 as a rotating device that is a premise of the present invention has a configuration in which a rotor 12 is arranged eccentrically in a casing 11 (outer cylinder member) having a circular inner wall. The rotor 12 stores a plurality of vanes (in FIG. 1, six vanes 13a, 13b, 13c, 13d, 13e, and 13f), and each of the vanes 13a to 13f has a corresponding spring (in FIG. 1). Springs 14a, 14b, 14c, 14d, 14e, 14f) and are always in contact with the inner wall of the casing 11. For example, as shown in FIG. 1, the vane 13 d is pushed by the spring 14 d and is always in contact with the inner wall of the casing 11.

  When a pressure difference is generated between the fluid at the suction port 15 and the fluid at the discharge port 16, a force of “cross-sectional area × pressure” is applied to the vanes 13 a to 13 f, and this force becomes the rotational force of the rotor 12. . For example, when the pressure of the suction port 15 is increased, pressure is applied to the vanes 13a to 13f. However, since the center of the rotor 12 is eccentric with respect to the casing 11, each vane protruding from the rotor 12 is used. The lengths of 13a to 13f are different from each other, and therefore, the cross-sectional areas receiving the forces in the vanes 13a to 13f are also different. Since the rotor 12 is rotated by the sum of the rotational direction components of the forces applied to the vanes 13a to 13f, the structure shown in FIG. 1 starts to rotate clockwise as a result.

  Here, in the turbine 1 having the configuration shown in FIG. 1, the vanes 13 a to 13 f are pressed against the inner wall of the casing 11 by the springs 14 a to 14 f. There is a problem that large friction occurs between them. For example, as shown in FIG. 1, since the spring 14 a is contracted, a large friction is generated between the vane 13 a and the casing 11. In addition, there is a problem that energy for expanding and contracting the springs 14a to 14f is also lost.

  Therefore, as shown in FIG. 2, the rotating device according to the first embodiment is configured to reduce the above-described loss by converting the pressure difference of the fluid into rotational energy without using a spring. FIG. 2 is a diagram for explaining the configuration of the rotating device according to the first embodiment. Here, in FIG. 2, the upper diagram is a top view of the turbine 2 that is the rotating device in the first embodiment, and the lower diagram is a cross-sectional view when the structure shown in the top diagram is cut by a straight line B. .

  As shown in FIG. 2, the turbine 2 as the rotating device in the first embodiment has a rotor 22 eccentric in a casing 21 (outer cylinder member) having a circular inner wall, similarly to the turbine 1 shown in FIG. 1. A plurality of vanes (six vanes 23a, 23b, 23c, 23d, 23e, and 23f in FIG. 2) are attached to the rotor 22.

  However, unlike the turbine 1, the turbine 2 does not have a spring, and instead, there is a recess 24 near the center of the rotor 22, and a part of the upper surface of the casing 21 protrudes inward so as to enter the recess 24. ing. Hereinafter, this raised portion is referred to as a raised portion 25. Here, as shown in FIG. 2, the shape of the ridge 25 is designed so that the distance from the side surface of the ridge 25 to the inner wall of the casing 21 is equal to the length of the vanes 23 a to 23 f around the ridge 25. The The ridge 25 corresponds to the “inner wall bulge” described in the claims.

  Thus, the rotor 22 is rotated after the vanes 23a to 23f are always positioned so as to be in contact with the inner wall of the casing 21 or to maintain a marginal distance (for example, 0.1 mm or less) from the inner wall of the casing 21. be able to.

  Further, since the vanes 23 a to 23 f isolate the high-pressure side and the low-pressure side of the fluid without being pressed against the inner wall of the casing 21, friction between the inner wall of the casing 21 can be reduced.

  Here, unlike the case where the inlet 15 and the outlet 16 in the turbine 1 shown in FIG. 1 are arranged in a straight line, the turbine 2 has an inlet 26 and an outlet 27 as shown in FIG. They are arranged at an angle. Moreover, although the area where the fluid enters the rotating portion of the rotor 22 is wide, if the vanes 23a to 23f can always isolate the suction port 26 and the discharge port 27, the viscosity and speed of the fluid can be increased. In consideration, it is possible to optimally design so that the fluid loss is small.

  Further, the recess 24 of the rotor also functions to make it easier for fluid to enter and exit the space of the vane storage portion. Since the storage portions of all the vanes are connected to the recesses 24, the fluid that is stored and pushed out of the vanes flows through the recesses 24 and flows into a space that is formed by the extension of another vane. Can do. Thereby, when a vane expands and contracts, the fluid friction loss of the fluid which goes in and out of a vane accommodating part can be reduced.

  For this reason, the turbine 2 as the rotating device according to the first embodiment has a fluid flow rate such that, even if the fluid flow rate and pressure are small, the fluid reliably transmits energy to the vane without passing through the vane. It is possible to provide a rotating device with little loss even in a situation where the pressure and pressure change greatly, and it is possible to provide a practical power generator by using this.

  Specifically, by pulling out the rotating shaft of the rotor 22 constituting the turbine 2 as the rotating device in the first embodiment described above to the outside of the casing 21 by a non-leaking seal (for example, an O-ring) and connecting to the generator. It can generate electricity.

  At this time, the shaft of the turbine 2 may be directly connected to the generator, or if there is a difference between the rotational speed of the turbine 2 and the rotational speed at which the generator can produce the maximum output, the turbine 2 and the generator The rotation speed may be converted using a gear or a pulley. Thus, even when the flow rate and pressure of the fluid change greatly by connecting the generator 2 that generates electric power using the rotation of the rotor 22 that constitutes the turbine 2 to the turbine 2 as the rotating device in the first embodiment. Electric power can be generated efficiently, and a practical power generator can be provided.

  In this embodiment, the case where the ridge 25 is configured to enter the recess 24 on the upper surface of the casing 21 has been described. However, the present invention is not limited to this, and the recess 24 is formed on the lower surface of the casing 21. It may be the case where it is configured to enter.

  In the second embodiment, a case where power generation is performed using the rotating device in the first embodiment will be specifically described with reference to FIG. In addition, FIG. 3 is a figure for demonstrating the structure of the electric power generating apparatus in Example 2. FIG.

  As shown in FIG. 3, the power generation device according to the second embodiment includes a tank 31 and a tank 32 whose internal volumes change due to external weighting, and a pipe 33 as a flow path that connects between the tank 31 and the tank 32. A turbine 34 as a rotating device installed on the pipe 33, and a generator 36 connected by the turbine 34 and the shaft 35, and the generator 36 is connected to a charging circuit 37 and a storage element 38. The When pressure is alternately applied to the tank 31 and the tank 32, the fluid filled in each of the tanks moves in the pipe 33. That is, the turbine 34 having the same configuration as that of the rotating device described in the first embodiment is installed on the pipe 33 through which the fluid moves, and the turbine 34 and the generator 36 are connected by the shaft 35. Electric power can be generated by operating the generator 36 by the rotation of the rotor.

  The fluid flowing into the turbine 34 may be water, oil, or air, and power can be generated as long as a pressure difference is generated between the fluid at the suction port and the fluid at the discharge port.

  Here, the electric power generated by the generator 36 is sent to the electric storage element 38 through the charging circuit 37 and stored. The charging circuit 37 is located between the generator 36 and the storage element 38 and has a function of rectifying an alternating current generated in the generator 36 and a function of adjusting the voltage of the storage element 38.

  Here, the configuration in the case where the generated power is once stored in the storage element 38 is described as an example. However, for example, the configuration may be such that the power generated in the generator 36 is directly output to the outside.

  For this reason, the power generation apparatus according to the second embodiment efficiently converts fluid energy into rotational energy and generates power even when the pressure and flow rate change greatly if there are two or more places where pressure or weight changes. This makes it possible to provide a practical power generator. That is, by using a configuration in which fluid is supplied to the turbine using two or more tanks and pipes in which the fluid is confined, power can be generated as long as the pressure difference and the load change alternately.

  In the third embodiment, the case where a check valve for preventing the backflow of fluid is provided in the flow path will be described with reference to FIG. FIG. 4 is a diagram for explaining the configuration of the power generation device according to the third embodiment.

  As shown in FIG. 3, in the power generation apparatus according to the second embodiment, the direction of the fluid flowing through the turbine 34 when the tank 31 is pushed is opposite to the direction of the fluid flowing through the turbine 34 when the tank 32 is pushed. become. That is, when the tank 31 and the tank 32 are pushed alternately, the turbine 34 repeats clockwise and counterclockwise alternately. This repeats the fact that the rotating turbine is once stopped and then rotated in reverse, so that an energy loss for stopping the rotation of the turbine and an energy loss due to a large static friction are generated. Therefore, as shown in FIG. 4, the power generation apparatus according to the third embodiment is configured not to stop the rotation of the turbine by rotating the turbine in only one direction.

  As shown in FIG. 4, the power generation device according to the third embodiment includes a tank 41, a tank 42, a pipe 43, a pipe 44, a pipe 45, a turbine 50, and a generator 51, The generator 51 is connected to the charging circuit 52 and the storage element 53. The tank 41 and the tank 42 are connected by a pipe 43 and a pipe 44, and the pipe 43 and the pipe 44 are further connected by a pipe 45. The pipe 43 has a check valve 46 and a check valve 47, and the pipe 44 has a check valve 48 and a check valve 49.

  By having these check valves 46 to 49, the fluid always flows in the pipe 45 only in one direction. For example, when pressure is applied to the tank 41, the check valve 47 and the check valve 48 are closed, and liquid flows from the check valve 46 through the pipe 45 to the check valve 49 (see the solid line arrow in FIG. 4). Further, when pressure is applied to the tank 42, the check valve 46 and the check valve 49 are closed, and liquid flows from the check valve 47 through the pipe 45 to the check valve 48 (see the broken line arrow in FIG. 4). . The turbine 50 in the middle of the pipe 45 is rotated by the pressure and momentum of the liquid flowing through the pipe 45.

  As a result, when pressure is alternately applied to the two tanks, the fluid flows continuously into the turbine 50 in the same direction, so that the turbine 50 can continue to rotate in the same direction, and the rotation speed does not drop. This rotation is transmitted to the generator 51, and electric power is stored in the storage element 53 through the charging circuit 52.

  For this reason, the power generation apparatus according to the third embodiment can improve the power generation efficiency by supplying the rotational force without stopping the turbine 50 from rotating due to inertia, and provide a practical power generation apparatus. Is possible.

  In the fourth embodiment, a case where the power generation device using the rotating device in the first embodiment is applied to shoes worn by a user will be described with reference to FIG. In addition, FIG. 5 is a figure for demonstrating the structure of the electric power generating apparatus in Example 4. FIG.

  The place where the power generation device according to the second and third embodiments described above is used may be any place where a pressure difference can be alternately generated. For example, in a shoe, a place where pressure due to the weight of the user is applied. By disposing the tanks under the vicinity of the heel and the vicinity of the toes (the base of the toes), it is possible to generate electric power by utilizing the change in the center of gravity accompanying walking.

  For example, as shown in FIG. 5, the power generation device according to the second embodiment is disposed inside the shoe. That is, the tank 31 is disposed in the vicinity of the toe in the shoe, the tank 32 is disposed in the vicinity of the heel in the shoe, and a pipe connecting the tank 31 and the tank 32 to a vacant space inside the shoe. 33, a turbine 34 installed on the pipe 33, a generator 36 connected to the turbine 34 by a shaft, a charging circuit 37, and a storage element 38 are arranged. When the user wears a shoe having such a configuration, power can be generated using the change in the center of gravity associated with walking.

  Actually, an experiment was conducted by configuring a power generation device employing a turbine as a rotating device in Example 1 as shown in FIG. The result is shown in FIG. In addition, FIG. 6 is a figure for demonstrating the result of the experiment using the electric power generating apparatus in Example 4. FIG.

  As a result of applying a pressure of 70 kg in weight to the front and rear tanks alternately, an electric power of about 820 mW and an average of about 350 mW could be obtained as shown in FIG.

  For this reason, the power generation apparatus according to the fourth embodiment causes the fluid to flow by the user's action (in this embodiment, the weight shift when the user walks), and efficiently uses the pressure and the momentum of the flow. By doing so, it is possible to efficiently extract rotational energy and generate electric power without conscious work in a casual operation of human daily life, and it is possible to provide a practical electric power generation device.

  Note that the configuration shown in FIG. 5 is merely an example, and can be implemented with appropriate modifications. That is, the installation location of the tank is not limited to the shoe, but a location where a pressure difference is generated, for example, as shown in FIG. 7, the tank 31 and the tank 32 are installed at the hip joint, and the turbine 34, the generator 36, etc. By attaching it to the waist, it is possible to generate electricity by the action of bending or stretching the hip joint. In addition, FIG. 7 is a figure for demonstrating the case where the electric power generating apparatus in this invention is mounted | worn at a waist | hip | lumbar.

  As described above, in the rotating device according to the present invention, the vane rotates while contacting the inner wall of the casing, so that the suction port side and the discharge port side are completely separated from each other. As a result, the flow rate and pressure are small, and even if the rotation is extremely low, the fluid does not flow through the gap between the turbines. If the pressure of the fluid exceeds the static friction, the turbine can be reliably rotated.

  Further, since the rotation is performed by utilizing the pressure difference of the fluid, the speed of the fluid can be reduced. Therefore, even if the size of the rotating device is reduced, the loss is small as compared with the conventional turbine. Therefore, it becomes possible to generate power using various energies that could not be used because a stable flow rate and flow rate cannot be obtained. For example, it is a force caused by human movement.

  Further, by rotating the turbine with the fluid confined in the two tanks, impurities such as dust can enter the interior, and the turbine and the tank can be prevented from deteriorating. Moreover, the rotational efficiency of a turbine can be raised by selecting the optimal material which is easy to turn a turbine as a fluid.

  Furthermore, since the soft tank containing the fluid also serves to absorb the impact on the foot during walking or running, the function of protecting the original foot of the shoe is not lost.

  According to the present invention, the battery of an existing portable device can be prevented. In addition, various portable devices that have been impractical due to high power consumption may become practically usable in combination with the present invention. In addition, by using the power generation device, the user does not need to use commercial power generated by discharging carbon dioxide or dry batteries, and can reduce electricity and dry battery costs. Can contribute. In addition, in order to obtain electric power, people actively exercise such as walking, and the health effect of the user can be expected.

  As described above, the rotation device and the power generation device according to the present invention are useful as a device for efficiently converting the energy of a fluid into rotation energy, and are suitable for power generation by human power, particularly power generation by daily operations such as walking. .

It is a figure for demonstrating the structure of the rotating apparatus used as the premise of this invention. It is a figure for demonstrating the structure of the rotating apparatus in Example 1. FIG. It is a figure for demonstrating the structure of the electric power generating apparatus in Example 2. FIG. FIG. 10 is a diagram for explaining a configuration of a power generation device according to a third embodiment. FIG. 10 is a diagram for explaining a configuration of a power generation device according to a fourth embodiment. It is a figure for demonstrating the result of the experiment using the electric power generating apparatus in Example 4. FIG. It is a figure for demonstrating the case where the electric power generating apparatus in this invention is mounted | worn at a waist | hip | lumbar.

Explanation of symbols

1, 2, 34, 50 Turbine 11, 21 Casing 12, 22 Rotor 13a, 13b, 13c, 13d, 13e, 13f, 23a, 23b, 23c, 23d, 23e, 23f Vane 14a, 14b, 14c, 14d, 14e, 14 f Spring 15, 26 Suction port 16, 27 Discharge port 24 Recess 25 Relief 31, 32, 41, 42 Tank 33, 43, 44, 45 Pipe 35 Shaft 36, 51 Generator 37, 52 Charging circuit 38, 53 Storage element 46 , 47, 48, 49 Check valve

Claims (6)

An outer cylinder member having a fluid inlet and outlet;
A rotatable rotor arranged eccentrically inside the outer cylinder member;
A vane provided so as to freely protrude and retract with respect to the rotor;
With
The rotor has a recess near the center of the rotor,
The outer cylinder member has an inner wall bulge having a shape in which a part of the upper surface or the lower surface of the inner wall of the outer cylinder member is bulged inward so as to enter the recess.
The inner wall bulge restricts the amount of vane sunk into the rotor, and always positions the vane tip so as to contact the inner wall of the outer cylinder member to isolate the suction port side from the discharge port side. The rotating device is characterized in that a pressure difference of fluid between the suction port side and the discharge port side is received by the vane and converted into rotation of the rotor.   The power generator according to claim 1, further comprising power generation means for generating power using rotation of the rotor. Two or more fluid tanks whose internal volume changes due to external load,
A flow path for flowing a fluid between the two or more fluid tanks based on the change in the internal volume;
Further comprising
The power generator according to claim 2, wherein the outer cylinder member is provided on the flow path.   A plurality of the flow paths are provided, and the plurality of flow paths are pipes having check valves that prevent backflow, so that the fluid that flows even when pressure is applied to any of the fluid tanks, the rotor The power generator according to claim 3, wherein the generators are rotated in the same direction.   4. The apparatus according to claim 3, further comprising mounting means for mounting on the user's body so that a weight applied to the fluid tank is changed in accordance with a user's operation, and generating electricity by the user's action. Or the power generator according to 4.   6. The fluid tank according to claim 5, wherein the wearing means is a shoe, and different weights are applied to a state where the weight is applied near the toe of the user's foot and the state where the weight is applied near the heel. Power generator.

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